##### Table of Contents





UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549





FORM 20-F





(Mark One)

| ̈ | Registration statement pursuant to Section 12(b) or 12(g) of the Securities Exchange Act of 1934
|- | ------------------------------------------------------------------------------------------------

or



|x | Annual report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934
|- | ------------------------------------------------------------------------------------

For the fiscal year ended December 31, 2009.

or



| ̈ | Transition report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934
|- | ----------------------------------------------------------------------------------------

For the transition period from  to

or



| ̈ | Shell company report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934
|- | -------------------------------------------------------------------------------------------

Date of event requiring this shell company report

Commission file number 001-15128





United
Microelectronics Corporation

(Exact Name of Registrant as Specified in its Charter)





Taiwan, Republic of China

(Jurisdiction of Incorporation or Organization)

No. 3 Li-Hsin Road II, Hsinchu Science Park,

Hsinchu City, Taiwan, Republic of China

(Address of Principal Executive Offices)

Peter Courture, +1 (650) 968-8855, peter@courture.com,

978 Highlands Circle, Los Altos, CA 94024, USA

(Name, Telephone, E-mail and/or Facsimile number and Address of Company Contact Person)





Securities registered or to be registered pursuant to Section 12(b) of the Act:



|                                                                                                            |  |                                          
|----------------------------------------------------------------------------------------------------------- |  | -----------------------------------------
|Title of Each Class                                                                                         |  | Name of Each Exchange on which Registered
|American Depositary Shares, as evidenced by American
Depositary Receipts, each representing 5 Common Shares |  | New York Stock Exchange                  

Securities registered or to be registered pursuant to Section 12(g) of the Act:

None

Securities for which there is a reporting obligation pursuant to Section 15(d) of the Act:

None





Indicate the
number of outstanding shares of each of the Issuers classes of capital or common stock as of the close of the period covered by the annual report.

12,987,771,315 Common Shares of Registrant issued as of December 31, 2009 (including 221,909,000 treasury shares)

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities
Act.    Yes  x    No   ̈

If this report is an annual or transition report, indicate by check mark if the registrant is not required to file reports pursuant to
Section 13 or 15(d) of the Securities Exchange Act of 1934.    Yes   ̈    No  x

Indicate by check mark whether the registrant: (1) has filed all reports required to be filed by Section 13 or 15(d)
of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90
days.    Yes  x    No   ̈

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive
Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such
files).    Yes   ̈    No   ̈

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, or a non-accelerated filer. See
definition of accelerated filer and large accelerated filer in Rule 12b-2 of the Exchange Act. (Check one):

Large
accelerated filer  x    Accelerated filer   ̈    Non-accelerated
filer   ̈

Indicate by check mark which basis of accounting the
registrant has used to prepare the financial statements included in this filing: U.S. GAAP   ̈

International Financial Reporting Standards as issued by the International Accounting Standards
Board   ̈    Other  x

Indicate by check mark which financial statement item the registrant has elected to follow. Item
17   ̈    Item 18  x

If this is an annual report, indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Securities
Exchange Act of 1934).    Yes   ̈    No  x









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##### Table of Contents

UNITED MICROELECTRONICS CORPORATION

FORM 20-F ANNUAL REPORT

FISCAL YEAR ENDED DECEMBER 31, 2009

Table of Contents



|                         |  |                                                                              |  |     
|------------------------ |  | ---------------------------------------------------------------------------- |  | ----
|                         |  |                                                                              |  | Page
|                         | 
|SUPPLEMENTAL INFORMATION |  | 1                                                                           
|                         | 
|PART I                   |  | 3                                                                           
|                         |  |                                                                             
|ITEM 1.                  |  | IDENTITY OF DIRECTORS, SENIOR MANAGEMENT AND ADVISERS                        |  | 3   
|                         |  |                                                                             
|ITEM 2.                  |  | OFFER STATISTICS AND EXPECTED TIMETABLE                                      |  | 3   
|                         |  |                                                                             
|ITEM 3.                  |  | KEY INFORMATION                                                              |  | 3   
|                         |  |                                                                             
|ITEM 4.                  |  | INFORMATION ON THE COMPANY                                                   |  | 24  
|                         |  |                                                                             
|ITEM 4A.                 |  | UNRESOLVED STAFF COMMENTS                                                    |  | 42  
|                         |  |                                                                             
|ITEM 5.                  |  | OPERATING AND FINANCIAL REVIEW AND PROSPECTS                                 |  | 42  
|                         |  |                                                                             
|ITEM 6.                  |  | DIRECTORS, SENIOR MANAGEMENT AND EMPLOYEES                                   |  | 59  
|                         |  |                                                                             
|ITEM 7.                  |  | MAJOR STOCKHOLDERS AND RELATED PARTY TRANSACTIONS                            |  | 63  
|                         |  |                                                                             
|ITEM 8.                  |  | FINANCIAL INFORMATION                                                        |  | 64  
|                         |  |                                                                             
|ITEM 9.                  |  | THE OFFER AND LISTING                                                        |  | 65  
|                         |  |                                                                             
|ITEM 10.                 |  | ADDITIONAL INFORMATION                                                       |  | 67  
|                         |  |                                                                             
|ITEM 11.                 |  | QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK                   |  | 86  
|                         |  |                                                                             
|ITEM 12.                 |  | DESCRIPTION OF SECURITIES OTHER THAN EQUITY SECURITIES                       |  | 89  
|                         | 
|PART II                  |  | 91                                                                          
|                         |  |                                                                             
|ITEM 13.                 |  | DEFAULTS, DIVIDEND ARREARAGES AND DELINQUENCIES                              |  | 91  
|                         |  |                                                                             
|ITEM 14.                 |  | MATERIAL MODIFICATIONS TO THE RIGHTS OF SECURITY HOLDERS AND USE OF PROCEEDS |  | 91  
|                         |  |                                                                             
|ITEM 15.                 |  | CONTROLS AND PROCEDURES                                                      |  | 91  
|                         |  |                                                                             
|ITEM 16A.                |  | AUDIT COMMITTEE FINANCIAL EXPERT                                             |  | 93  
|                         |  |                                                                             
|ITEM 16B.                |  | CODE OF ETHICS                                                               |  | 93  
|                         |  |                                                                             
|ITEM 16C.                |  | PRINCIPAL ACCOUNTANT FEES AND SERVICES                                       |  | 93  
|                         |  |                                                                             
|ITEM 16D.                |  | EXEMPTIONS FROM THE LISTING STANDARDS FOR AUDIT COMMITTEES                   |  | 93  
|                         |  |                                                                             
|ITEM 16E.                |  | PURCHASE OF EQUITY SECURITIES BY THE ISSUER AND AFFILIATED PURCHASERS        |  | 94  
|                         |  |                                                                             
|ITEM 16F.                |  | CHANGE IN REGISTRANTS CERTIFYING ACCOUNTANT                                 |  | 94  
|                         |  |                                                                             
|ITEM 16G.                |  | CORPORATE GOVERNANCE                                                         |  | 94  
|                         | 
|PART III                 |  | 96                                                                          
|                         |  |                                                                             
|ITEM 17.                 |  | FINANCIAL STATEMENTS                                                         |  | 96  
|                         |  |                                                                             
|ITEM 18.                 |  | FINANCIAL STATEMENTS                                                         |  | 96  
|                         |  |                                                                             
|ITEM 19.                 |  | EXHIBITS                                                                     |  | 97  



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##### Table of Contents

SUPPLEMENTAL INFORMATION

The references to United Microelectronics, we, us, our, our company and
the Company in this annual report refer to United Microelectronics Corporation and its consolidated subsidiaries, unless the context suggests otherwise. The references to United Semiconductor, United Silicon,
UTEK Semiconductor and United Integrated Circuits are to United Semiconductor Corporation, United Silicon Incorporated, UTEK Semiconductor Corporation and United Integrated Circuits Corporation, respectively. The references
to Taiwan and ROC refer to Taiwan, Republic of China. The references to shares and common shares refer to our common shares, par value NT$10 per share, and ADSs refers to our American
depositary shares, each representing five common shares. The ADSs are issued under the Deposit Agreement, dated as of October 21, 2009, as amended, supplemented or modified from time to time, among United Microelectronics, JPMorgan Chase Bank,
N.A. and the holders and beneficial owners from time to time of American Depositary Receipts issued thereunder. ROC GAAP means the generally accepted accounting principles in the Republic of China and US GAAP means the
generally accepted accounting principles in the United States. Any discrepancies in any table between totals and sums of the amounts listed are due to rounding.

We publish our financial statements in New Taiwan dollars, the lawful currency of the ROC. In this annual report, NT$ and
NT dollars mean New Taiwan dollars, $, US$ and U.S. dollars mean United States dollars and ¥ means Japanese Yen.

FORWARD-LOOKING STATEMENTS IN THIS ANNUAL REPORT MAY NOT BE REALIZED

Our disclosure and analysis in this annual report contain or incorporate by reference some forward-looking statements. Our
forward-looking statements contain information regarding, among other things, our financial condition, future expansion plans and business strategy. We have based these forward-looking statements on our current expectations and projections about
future events. You can identify these statements by the fact that they do not relate strictly to historical or current facts. Although we believe that these expectations and projections are reasonable, such forward-looking statements are inherently
subject to risks, uncertainties and assumptions about us, including, among other things:



| |  |  | our dependence on frequent introduction of new product services and technologies based on the latest developments;
| | - |  | ------------------------------------------------------------------------------------------------------------------



| |  |  | the intensely competitive semiconductor, communications, consumer electronics and PC industries and markets;
| | - |  | ------------------------------------------------------------------------------------------------------------



| |  |  | risks associated with our international business activities;
| | - |  | ------------------------------------------------------------



| |  |  | our dependence on key personnel;
| | - |  | --------------------------------



| |  |  | general economic and political conditions, including those related to the semiconductor, communications, consumer electronics and PC industries;
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | natural disasters, such as earthquakes and droughts, which are beyond our control;
| | - |  | ----------------------------------------------------------------------------------



| |  |  | possible disruptions in commercial activities caused by natural and human-induced disasters and outbreaks of contagious diseases;
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------



| |  |  | fluctuations in foreign currency exchange rates;
| | - |  | ------------------------------------------------



| |  |  | additional disclosures we make in our previous and future Form 20-F annual reports and Form 6-K periodic reports to the U.S. Securities and Exchange
Commission; and
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------



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| |  |  | those other risks identified in the Item 3. Key InformationD. Risk Factors section of this annual report.
| | - |  | ------------------------------------------------------------------------------------------------------------

The words may, will, is/are likely to, anticipate,
believe, estimate, expect, intend, plan and similar expressions are intended to identify a number of these forward-looking statements. We do not and will not undertake the obligation to
update or revise any forward-looking statements contained in this annual report whether as a result of new information, future events or otherwise. In light of these risks, uncertainties and assumptions, the forward-looking events discussed in this
annual report might not occur and our actual results could differ materially from those anticipated in these forward-looking statements.

GLOSSARY



|                   |  |                                                                                                                                                                                                                                                                                                                             
|------------------ |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|ASIC               |  | Application Specific Integrated Circuit. A custom-designed integrated circuit that performs specific functions which would otherwise require a number of off-the-shelf integrated
circuits to perform.                                                                                                                      
|                   | 
|Cell               |  | Semiconductor structure in an electrical state which can store a bit of information, mainly used as the building block of memory array.                                                                                                                                                                                     
|                   | 
|Die                |  | A piece of a semiconductor wafer containing the circuitry of an unpackaged single chip.                                                                                                                                                                                                                                     
|                   | 
|DRAM               |  | Dynamic Random Access Memory. A type of volatile memory product that is used in electronic systems to store data and program instructions. It is the most common type of RAM and must
be refreshed with electricity hundreds of times per second or else it will fade away.                                                 
|                   | 
|FPGA               |  | Field Programmable Gate Array. A programmable integrated circuit.                                                                                                                                                                                                                                                           
|                   | 
|Integrated circuit |  | Entire electronic circuit built on a single piece of solid substrate and enclosed in a small package. The package is equipped with leads needed to electrically integrate the
integrated circuit with a larger electronic system. Monolithic and hybrid integrated circuits are distinguished by the type of substrate used.
|                   | 
|Interconnect       |  | The conductive path made from copper or aluminum that is required to achieve connection from one circuit element to the other circuit elements within a circuit.                                                                                                                                                            
|                   | 
|Mask               |  | Photomask. A piece of glass on which an integrated circuit circuitry design is laid out.                                                                                                                                                                                                                                    
|                   | 
|Memory             |  | A group of integrated circuits that a computer uses to store data and programs, such as ROM, RAM, DRAM and SRAM.                                                                                                                                                                                                            
|                   | 
|Micron             |  | A unit of spatial measurement that is one-millionth of a meter.                                                                                                                                                                                                                                                             
|                   | 
|Nanometer          |  | A unit of spatial measurement that is one-billionth of a meter.                                                                                                                                                                                                                                                             
|                   | 
|PC                 |  | Personal computer.                                                                                                                                                                                                                                                                                                          
|                   | 
|RAM                |  | Random Access Memory. A type of volatile memory forming the main memory of a computer where applications and files are run.                                                                                                                                                                                                 
|                   | 
|ROM                |  | Read-Only Memory. Memory that is programmed by the manufacturer and cannot be changed. Typically, ROM is used to provide start-up data when a computer is first turned
on.                                                                                                                                                  



2



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|                         |  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
|------------------------ |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|                         | 
|Scanner                  |  | A photolithography tool used in the production of semiconductor devices. This camera-like step-and-scan tool projects the image of a circuit from a master image onto a
photosensitized silicon wafer.                                                                                                                                                                                                                                                                                                                                                                        
|                         | 
|Semiconductor            |  | A material with electrical conducting properties in between those of metals and insulators. Essentially, semiconductors transmit electricity only under certain circumstances, such
as when given a positive or negative electric charge. Therefore, a semiconductors ability to conduct can be turned on or off by manipulating those charges and this allows the semiconductor to act as an electric switch. The most common
semiconductor material is silicon, used as the base of most semiconductor chips today because it is relatively inexpensive and easy to create.
|                         | 
|SoC                      |  | System-on-Chip. A chip that incorporates functions currently performed by several chips on a cost-effective basis.                                                                                                                                                                                                                                                                                                                                                                                                                                                            
|                         | 
|SOI                      |  | Silicon-On-Insulator. Silicon wafer consisting of a thin layer of oxide, on top of which semiconductor devices are built.                                                                                                                                                                                                                                                                                                                                                                                                                                                     
|                         | 
|SRAM                     |  | Static Random Access Memory. A type of volatile memory product that is used in electronic systems to store data and program instructions. Unlike the more common DRAM, it does not
need to be refreshed.                                                                                                                                                                                                                                                                                                                                                                      
|                         | 
|Transistor               |  | Tri-terminal semiconductor device in which input signal (voltage or current depending on the type of transistor) controls output current. An individual circuit that can amplify or
switch electric current. This is the building block of all integrated circuits.                                                                                                                                                                                                                                                                                                           
|                         | 
|Volatile memory          |  | Memory products which lose their data content when the power supply is switched off.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
|                         | 
|Wafer                    |  | Thin, round, flat piece of silicon that is the base of most integrated circuits.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              
|                         | 
|8-inch wafer equivalents |  | Standard unit describing the equivalent amount of 8-inch wafers produced after conversion, used to quantify levels of wafer production for purposes of comparison. Figures of 8-inch
wafer equivalents are derived by converting the number of wafers of all dimensions (e.g., 6-inch, 8-inch and 12-inch) into their equivalent figures for 8-inch wafers. 100 6-inch wafers are equivalent to 56.25 8-inch wafers. 100 12-inch wafers are
equivalent to 225 8-inch wafers.                                                                                                  

PART I



|ITEM 1. | IDENTITY OF DIRECTORS, SENIOR MANAGEMENT AND ADVISERS
|------- | -----------------------------------------------------

Not applicable.



|ITEM 2. | OFFER STATISTICS AND EXPECTED TIMETABLE
|------- | ---------------------------------------

Not applicable.



|ITEM 3. | KEY INFORMATION
|------- | ---------------

A. Selected
Financial Data

The selected balance sheet data as of December 31, 2008 and 2009 and the selected statements of income
and cash flow data for the years ended December 31, 2007, 2008 and 2009 are derived from our audited consolidated financial statements included elsewhere in this annual report. The selected balance sheet data as of December 31, 2005, 2006
and 2007 and the selected statements of income and cash flow data for the years ended December 31, 2005 and 2006 are derived from our audited consolidated financial statements not included in this annual report.



3



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##### Table of Contents

Our financial statements have been prepared and presented in accordance with ROC GAAP, which
differs in many material respects from US GAAP. For the discussion of these differences, see Note 35 to our audited consolidated financial statements included elsewhere in this annual report. Some of the items in the statements of income, cash flow
and balance sheets have been reconciled to US GAAP and are set forth below. The summary financial data set forth below should be read in conjunction with Item 5. Operating and Financial Review and Prospects and our financial
statements and the notes to those statements included elsewhere in this annual report.



|                                                                                                        |  |                                                  |   |  |         |   |  |         |   |  |         |   |  |         |   |  |        |  
|------------------------------------------------------------------------------------------------------- |  | ------------------------------------------------ | - |  | ------- | - |  | ------- | - |  | ------- | - |  | ------- | - |  | ------ | -
|                                                                                                        |  | Year Ended December 31,                          |  
|                                                                                                        |  | 2005                                             |   |  | 2006    |   |  | 2007    |   |  | 2008    |   |  | 2009    |  
|                                                                                                        |  | NT$                                              |   |  | NT$     |   |  | NT$     |   |  | NT$     |   |  | NT$     |   |  | US$    |  
|                                                                                                        |  | (in millions, except per share and per ADS data) |  
|Consolidated Statement of Income Data:                                                                  |  |                                                  |   |  |         |   |  |         |   |  |         |   |  |         |   |  |        |  
|ROC GAAP                                                                                                |  |                                                  |   |  |         |   |  |         |   |  |         |   |  |         |   |  |        |  
|Net operating revenues                                                                                  |  | 100,316                                          |   |  | 112,004 |   |  | 113,311 |   |  | 96,814  |   |  | 91,390  |   |  | 2,860  |  
|Cost of goods sold                                                                                      |  | (89,787                                          | ) |  | (91,690 | ) |  | (90,072 | ) |  | (84,102 | ) |  | (75,975 | ) |  | (2,378 | )
|                                                                                                        |  |                                                  |   |  |         |   |  |         |   |  |         |   |  |         |   |  |        |  
|Gross profit                                                                                            |  | 10,529                                           |   |  | 20,314  |   |  | 23,239  |   |  | 12,712  |   |  | 15,415  |   |  | 482    |  
|                                                                                                        |  |                                                  |   |  |         |   |  |         |   |  |         |   |  |         |   |  |        |  
|Operating expenses:                                                                                     |  |                                                  |   |  |         |   |  |         |   |  |         |   |  |         |   |  |        |  
|Sales and marketing                                                                                     |  | (3,739                                           | ) |  | (3,366  | ) |  | (4,069  | ) |  | (3,483  | ) |  | (2,800  | ) |  | (87    | )
|General and administrative                                                                              |  | (4,387                                           | ) |  | (3,422  | ) |  | (3,724  | ) |  | (3,055  | ) |  | (2,724  | ) |  | (85    | )
|Research and development                                                                                |  | (9,634                                           | ) |  | (9,419  | ) |  | (9,631  | ) |  | (8,274  | ) |  | (8,044  | ) |  | (252   | )
|                                                                                                        |  |                                                  |   |  |         |   |  |         |   |  |         |   |  |         |   |  |        |  
|Total operating expenses                                                                                |  | (17,760                                          | ) |  | (16,207 | ) |  | (17,424 | ) |  | (14,812 | ) |  | (13,568 | ) |  | (424   | )
|                                                                                                        |  |                                                  |   |  |         |   |  |         |   |  |         |   |  |         |   |  |        |  
|Operating income (loss)                                                                                 |  | (7,231                                           | ) |  | 4,107   |   |  | 5,815   |   |  | (2,100  | ) |  | 1,847   |   |  | 58     |  
|Net non-operating income (loss)                                                                         |  | 12,837                                           |   |  | 32,480  |   |  | 13,855  |   |  | (19,886 | ) |  | (174    | ) |  | (6     | )
|                                                                                                        |  |                                                  |   |  |         |   |  |         |   |  |         |   |  |         |   |  |        |  
|Income (Loss) before income tax and minority interests                                                  |  | 5,606                                            |   |  | 36,587  |   |  | 19,670  |   |  | (21,986 | ) |  | 1,673   |   |  | 52     |  
|Income tax expense                                                                                      |  | (67                                              | ) |  | (3,261  | ) |  | (2,809  | ) |  | (997    | ) |  | (651    | ) |  | (20    | )
|Cumulative effect of changes in accounting principles (the net amount after deducted tax expense
$0)(1) |  | (113                                             | ) |  | (1,189  | ) |  |        |   |  |        |   |  |        |   |  |       |  
|Extraordinary gain                                                                                      |  |                                                 |   |  |        |   |  |        |   |  |        |   |  | 649     |   |  | 20     |  
|                                                                                                        |  |                                                  |   |  |         |   |  |         |   |  |         |   |  |         |   |  |        |  
|Net income (loss)                                                                                       |  | 5,426                                            |   |  | 32,137  |   |  | 16,861  |   |  | (22,983 | ) |  | 1,671   |   |  | 52     |  
|                                                                                                        |  |                                                  |   |  |         |   |  |         |   |  |         |   |  |         |   |  |        |  
|Attributable to:                                                                                        |  |                                                  |   |  |         |   |  |         |   |  |         |   |  |         |   |  |        |  
|the Company                                                                                             |  | 7,027                                            |   |  | 32,619  |   |  | 16,962  |   |  | (22,320 | ) |  | 3,874   |   |  | 121    |  
|minority interests                                                                                      |  | (1,601                                           | ) |  | (482    | ) |  | (101    | ) |  | (663    | ) |  | (2,203  | ) |  | (69    | )
|                                                                                                        |  |                                                  |   |  |         |  
|Earnings (Losses) per
share:(2)(3)                                                                      |  |                                                  |   |  |         |   |  |         |   |  |         |   |  |         |   |  |        |  
|Basic                                                                                                   |  | 0.36                                             |   |  | 1.71    |   |  | 1.03    |   |  | (1.70   | ) |  | 0.31    |   |  | 0.01   |  
|Diluted(5)                                                                                              |  | 0.35                                             |   |  | 1.66    |   |  | 1.00    |   |  | (1.70   | ) |  | 0.30    |   |  | 0.01   |  
|Shares used in earnings (losses) per share
calculation:(3)                                              |  |                                                  |   |  |         |   |  |         |   |  |         |   |  |         |   |  |        |  
|Basic                                                                                                   |  | 19,657                                           |   |  | 19,029  |   |  | 16,464  |   |  | 13,111  |   |  | 12,699  |   |  | 12,699 |  
|Diluted(5)                                                                                              |  | 19,959                                           |   |  | 19,687  |   |  | 16,943  |   |  | 13,170  |   |  | 12,786  |   |  | 12,786 |  
|Earnings (Losses) per
ADS:(3)                                                                           |  |                                                  |   |  |         |   |  |         |   |  |         |   |  |         |   |  |        |  
|Basic                                                                                                   |  | 1.80                                             |   |  | 8.55    |   |  | 5.15    |   |  | (8.50   | ) |  | 1.55    |   |  | 0.05   |  
|Diluted(5)                                                                                              |  | 1.75                                             |   |  | 8.30    |   |  | 5.00    |   |  | (8.50   | ) |  | 1.50    |   |  | 0.05   |  
|                                                                                                        |  |                                                  |   |  |         |  
|US GAAP                                                                                                 |  |                                                  |   |  |         |   |  |         |   |  |         |   |  |         |   |  |        |  
|Net operating revenues                                                                                  |  | 96,782                                           |   |  | 112,004 |   |  | 113,311 |   |  | 96,814  |   |  | 91,390  |   |  | 2,860  |  
|Cost of goods sold                                                                                      |  | (89,724                                          | ) |  | (93,288 | ) |  | (92,012 | ) |  | (85,923 | ) |  | (76,209 | ) |  | (2,385 | )
|Operating income (loss)                                                                                 |  | (29,053                                          | ) |  | 2,200   |   |  | (19,992 | ) |  | (22,431 | ) |  | (2,323  | ) |  | (73    | )
|Net income (loss)                                                                                       |  | (17,325                                          | ) |  | 21,271  |   |  | (9,398  | ) |  | (29,632 | ) |  | 364     |   |  | 11     |  
|Attributable to:                                                                                        |  |                                                  |   |  |         |   |  |         |   |  |         |   |  |         |   |  |        |  
|the Company                                                                                             |  | (15,669                                          | ) |  | 21,797  |   |  | (9,264  | ) |  | (28,955 | ) |  | 2,572   |   |  | 80     |  
|noncontrolling interests                                                                                |  | (1,656                                           | ) |  | (526    | ) |  | (134    | ) |  | (677    | ) |  | (2,208  | ) |  | (69    | )
|Other comprehensive income (loss) attributable to the Company                                           |  | 23,708                                           |   |  | (8,194  | ) |  | (4,863  | ) |  | (25,239 | ) |  | 24,540  |   |  | 768    |  
|Comprehensive income (loss) attributable to the Company                                                 |  | 8,039                                            |   |  | 13,602  |   |  | (14,127 | ) |  | (54,194 | ) |  | 27,112  |   |  | 848    |  



4



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|                                                           |  |                                                  |   |  |        |  |        |   |  |        |   |  |        |  |       
|---------------------------------------------------------- |  | ------------------------------------------------ | - |  | ------ |  | ------ | - |  | ------ | - |  | ------ |  | ------
|                                                           |  | Year Ended December 31,                         
|                                                           |  | 2005                                             |   |  | 2006   |  | 2007   |   |  | 2008   |   |  | 2009  
|                                                           |  | NT$                                              |   |  | NT$    |  | NT$    |   |  | NT$    |   |  | NT$    |  | US$   
|                                                           |  | (in millions, except per share and per ADS data)
|Earnings (Losses) per
share:(2)(4)                         |  |                                                  |   |  |        |  |        |   |  |        |   |  |        |  |       
|Basic                                                      |  | (0.97                                            | ) |  | 1.42   |  | (0.63  | ) |  | (2.25  | ) |  | 0.21   |  | 0.01  
|Diluted(5)                                                 |  | (0.97                                            | ) |  | 1.37   |  | (0.63  | ) |  | (2.25  | ) |  | 0.20   |  | 0.01  
|Shares used in earnings (losses) per share
calculation:(4) |  |                                                  |   |  |        |  |        |   |  |        |   |  |        |  |       
|Basic                                                      |  | 16,185                                           |   |  | 15,350 |  | 14,599 |   |  | 12,870 |   |  | 12,538 |  | 12,538
|Diluted(5)                                                 |  | 16,185                                           |   |  | 15,891 |  | 14,599 |   |  | 12,870 |   |  | 12,560 |  | 12,560
|Earnings (Losses) per
ADS:(4)                              |  |                                                  |   |  |        |  |        |   |  |        |   |  |        |  |       
|Basic                                                      |  | (4.84                                            | ) |  | 7.10   |  | (3.17  | ) |  | (11.25 | ) |  | 1.03   |  | 0.03  
|Diluted(5)                                                 |  | (4.84                                            | ) |  | 6.87   |  | (3.17  | ) |  | (11.25 | ) |  | 1.02   |  | 0.03  



5



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|                                                     |  |                                                  |    |  |         |   |  |         |    |  |         |    |  |         |    |  |       |   
|---------------------------------------------------- |  | ------------------------------------------------ | -- |  | ------- | - |  | ------- | -- |  | ------- | -- |  | ------- | -- |  | ----- | --
|                                                     |  | Year Ended December 31,                          |   
|                                                     |  | 2005                                             |    |  | 2006    |   |  | 2007    |    |  | 2008    |    |  | 2009    |   
|                                                     |  | NT$                                              |    |  | NT$     |   |  | NT$     |    |  | NT$     |    |  | NT$     |    |  | US$   |   
|                                                     |  | (in millions, except per share and per ADS data) |   
|Consolidated Balance Sheet Data:                     |  |                                                  |    |  |         |   |  |         |    |  |         |    |  |         |    |  |       |   
|ROC GAAP                                             |  |                                                  |    |  |         |   |  |         |    |  |         |    |  |         |    |  |       |   
|Current assets                                       |  | 144,863                                          |    |  | 132,344 |   |  | 81,111  |    |  | 68,888  |    |  | 102,363 |    |  | 3,204 |   
|Long-term investment                                 |  | 30,797                                           |    |  | 71,964  |   |  | 69,813  |    |  | 32,441  |    |  | 55,227  |    |  | 1,729 |   
|Property, plant and equipment                        |  | 159,114                                          |    |  | 151,828 |   |  | 137,219 |    |  | 108,410 |    |  | 89,596  |    |  | 2,804 |   
|Total assets                                         |  | 347,049                                          |    |  | 367,653 |   |  | 299,558 |    |  | 216,399 |    |  | 253,638 |    |  | 7,939 |   
|Current liabilities                                  |  | 37,101                                           |    |  | 35,851  |   |  | 45,357  |    |  | 13,033  |    |  | 35,246  |    |  | 1,103 |   
|Long-term debt (excluding current portion)           |  | 41,692                                           |    |  | 30,383  |   |  | 7,495   |    |  | 8,130   |    |  | 767     |    |  | 24    |   
|Total liabilities                                    |  | 82,429                                           |    |  | 70,251  |   |  | 56,561  |    |  | 24,740  |    |  | 39,542  |    |  | 1,238 |   
|Stockholders equity                                 |  | 264,620                                          |    |  | 297,402 |   |  | 242,997 |    |  | 191,659 |    |  | 214,096 |    |  | 6,701 |   
|US GAAP                                              |  |                                                  |    |  |         |   |  |         |    |  |         |    |  |         |    |  |       |   
|Cash and cash equivalents                            |  | 63,508                                           |    |  | 61,649  |   |  | 47,678  |    |  | 40,017  |    |  | 54,413  |    |  | 1,703 |   
|Working
capital(6)                                   |  | 105,705                                          |    |  | 95,779  |   |  | 35,111  |    |  | 55,525  |    |  | 67,162  |    |  | 2,102 |   
|Total assets                                         |  | 426,706                                          |    |  | 401,628 |   |  | 310,614 |    |  | 214,990 |    |  | 252,705 |    |  | 7,909 |   
|Total liabilities                                    |  | 83,943                                           |    |  | 71,226  |   |  | 56,795  |    |  | 24,099  |    |  | 39,465  |    |  | 1,235 |   
|Stockholders equity                                 |  | 342,763                                          |    |  | 330,402 |   |  | 253,819 |    |  | 190,891 |    |  | 213,240 |    |  | 6,674 |   
|                                                     | 
|                                                     |  | Year Ended December 31,                          |   
|                                                     |  | 2005                                             |    |  | 2006    |   |  | 2007    |    |  | 2008    |    |  | 2009    |   
|                                                     |  | NT$                                              |    |  | NT$     |   |  | NT$     |    |  | NT$     |    |  | NT$     |    |  | US$   |   
|                                                     |  | (in millions, except per share and per ADS data) |   
|Other Consolidated Data:                             |  |                                                  |    |  |         |   |  |         |    |  |         |    |  |         |    |  |       |   
|ROC GAAP                                             |  |                                                  |    |  |         |   |  |         |    |  |         |    |  |         |    |  |       |   
|Cash flow:                                           |  |                                                  |    |  |         |   |  |         |    |  |         |    |  |         |    |  |       |   
|Capital expenditure                                  |  | 22,163                                           |    |  | 33,240  |   |  | 28,299  |    |  | 11,515  |    |  | 17,618  |    |  | 551   |   
|Cash provided by operating activities                |  | 45,091                                           |    |  | 47,124  |   |  | 48,124  |    |  | 45,251  |    |  | 32,427  |    |  | 1,015 |   
|Cash used in investing activities                    |  | (7,533                                           | )  |  | (16,556 | ) |  | (21,844 | )  |  | (11,423 | )  |  | (19,218 | )  |  | (601  | ) 
|Cash provided by (used in) financing activities      |  | (29,592                                          | )  |  | (45,056 | ) |  | (72,694 | )  |  | (34,380 | )  |  | 4,944   |    |  | 155   |   
|Net increase (decrease) in cash and cash equivalents |  | 7,245                                            |    |  | (14,774 | ) |  | (46,175 | )  |  | 889     |    |  | 17,586  |    |  | 550   |   
|Gross profit margin                                  |  | 10.5                                             | %  |  | 18.1    | % |  | 20.5    | %  |  | 13.1    | %  |  | 16.9    | %  |  | 16.9  | % 
|Operating profit (loss) margin                       |  | (7.2                                             | )% |  | 3.7     | % |  | 5.1     | %  |  | (2.2    | )% |  | 2.0     | %  |  | 2.0   | % 
|Net profit (loss) margin                             |  | 7.0                                              | %  |  | 29.1    | % |  | 15.0    | %  |  | (23.0   | )% |  | 4.2     | %  |  | 4.2   | % 
|Capacity utilization rate (on an actual basis)       |  | 72.4                                             | %  |  | 79.5    | % |  | 81.9    | %  |  | 70.7    | %  |  | 69.4    | %  |  | 69.4  | % 
|Dividends declared per
share(7)                      |  | 1.1                                              |    |  | 0.5     |   |  | 0.7     |    |  | 1.2     |    |  |        |    |  |      |   
|US GAAP                                              |  |                                                  |    |  |         |   |  |         |    |  |         |    |  |         |    |  |       |   
|Cash flow:                                           |  |                                                  |    |  |         |   |  |         |    |  |         |    |  |         |    |  |       |   
|Capital expenditure                                  |  | 22,163                                           |    |  | 33,240  |   |  | 28,299  |    |  | 11,515  |    |  | 17,618  |    |  | 551   |   
|Cash provided by operating activities                |  | 45,064                                           |    |  | 46,385  |   |  | 45,785  |    |  | 44,953  |    |  | 32,427  |    |  | 1,015 |   
|Cash provided by (used in) investing activities      |  | (6,081                                           | )  |  | (9,736  | ) |  | 10,360  |    |  | (19,973 | )  |  | (22,408 | )  |  | (701  | ) 
|Cash provided by (used in) financing activities      |  | (29,565                                          | )  |  | (38,222 | ) |  | (70,354 | )  |  | (34,081 | )  |  | 4,944   |    |  | 155   |   
|Net increase (decrease) in cash and cash equivalents |  | 7,951                                            |    |  | (1,859  | ) |  | (13,971 | )  |  | (7,661  | )  |  | 14,396  |    |  | 451   |   
|Gross profit margin                                  |  | 7.3                                              | %  |  | 16.7    | % |  | 18.8    | %  |  | 11.3    | %  |  | 16.6    | %  |  | 16.6  | % 
|Operating profit (loss) margin                       |  | (30.0                                            | )% |  | 2.0     | % |  | (17.6   | )% |  | (23.2   | )% |  | (2.5    | )% |  | (2.5  | )%
|Net profit (loss) margin                             |  | (16.2                                            | )% |  | 19.5    | % |  | (8.2    | )% |  | (29.9   | )% |  | 2.8     | %  |  | 2.8   | % 



|(1) | Refer to Note 3 to the audited consolidated financial statements included elsewhere in this annual report.
|--- | ----------------------------------------------------------------------------------------------------------

|(2) | Earnings (Losses) per share is calculated by dividing net income (loss) by the weighted average number of shares outstanding during the year.
|--- | ---------------------------------------------------------------------------------------------------------------------------------------------

|(3) | Retroactively adjusted for all subsequent stock dividends; retroactively adjusted for employee stock bonus before 2008.
|--- | -----------------------------------------------------------------------------------------------------------------------

|(4) | Retroactively adjusted for the capital reduction completed in 2007 and all subsequent stock dividends.
|--- | ------------------------------------------------------------------------------------------------------

|(5) | Diluted securities include convertible bonds and employee stock options, if any.
|--- | --------------------------------------------------------------------------------



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|(6) | Working capital equals current assets minus current liabilities.
|--- | ----------------------------------------------------------------

|(7) | Dividends declared per share are in connection with earnings and accumulated additional paid-in capital.
|--- | --------------------------------------------------------------------------------------------------------

|(8) | Refer to Note 35 to the audited consolidated financial statements included elsewhere in this annual report.
|--- | -----------------------------------------------------------------------------------------------------------

Currency Translations and Exchange Rates

In portions of this annual report, we have translated New Taiwan dollar amounts into U.S. dollars for the convenience of readers. The rate
we used for the translations was NT$31.95 = US$1.00, which was the noon buying rate as certified for customs purposes by the Federal Reserve Bank of New York on December 31, 2009. The translation does not mean that New Taiwan dollars could
actually be converted into U.S. dollars at that rate. The following table shows the noon buying rates for New Taiwan dollars expressed in New Taiwan dollar per US$1.00. On April 23, 2010, the noon buying rate was NT$31.38 to US$1.00.



|                         |  |            |  |       |  |       |  |             
|------------------------ |  | ---------- |  | ----- |  | ----- |  | ------------
|                         |  | Average(1) |  | High  |  | Low   |  | AtPeriod-End
|                         |  |            |  |      
|2005                     |  | 32.13      |  | 33.77 |  | 30.65 |  | 32.80       
|2006                     |  | 32.51      |  | 33.31 |  | 31.28 |  | 32.59       
|2007                     |  | 32.85      |  | 33.41 |  | 32.26 |  | 32.43       
|2008                     |  | 31.52      |  | 33.58 |  | 29.99 |  | 32.76       
|2009                     |  |            |  |       |  |       |  |             
|October                  |  | 32.29      |  | 32.61 |  | 32.04 |  | 32.61       
|November                 |  | 32.32      |  | 32.58 |  | 32.12 |  | 32.20       
|December                 |  | 32.25      |  | 32.38 |  | 31.95 |  | 31.95       
|2010 (through April 23)  |  | 31.79      |  | 32.14 |  | 31.35 |  | 31.38       
|January                  |  | 31.87      |  | 32.04 |  | 31.65 |  | 31.94       
|February                 |  | 32.06      |  | 32.14 |  | 31.98 |  | 32.12       
|March                    |  | 31.83      |  | 32.04 |  | 31.70 |  | 31.73       
|April (through April 23) |  | 31.52      |  | 31.74 |  | 31.35 |  | 31.38       



Source: Federal Reserve Statistical Release, Board of Governors of the Federal Reserve System.



|(1) | Determined by averaging the rates on the last business day of each month during the relevant period for annual periods and the rates on each business day for monthly
periods.
|--- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

B. Capitalization and Indebtedness

Not applicable.

C. Reasons for the Offer and Use of Proceeds

Not applicable.

D. Risk Factors

Our business and operations are subject to various risks, many of which are beyond our control. If any of the risks described below
actually occurs, our business, financial condition or results of operations could be seriously harmed.

Risks Related to Our Business
and Financial Condition

A global recession and credit crisis may cause significant disruptions to our major customers
businesses as well as to their ability to access sources of liquidity. Demand for our products has been, and will continue to be, adversely affected by overall macroeconomic conditions.

A global recession and credit crisis may have significant negative impact on our businesses. Our key markets and our targeted markets,
including the United States and China, as well as other national economies, may enter a period of economic contraction or significantly slower economic growth in a global recession. In particular, a global economic crisis, weak consumer confidence,
diminished consumer and business spending, and asset depreciation may contribute to a significant slowdown in the market demand for semiconductors and semiconductor-based end-products, which may lead to a decrease in demand for our services. The
combined effects of a global recession may have a material adverse impact on our results of operations, cash flows and financial condition, which may cause the price of our ADSs to decline.



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In addition, many of our customers may experience difficulty in obtaining credit in a
deteriorating economic environment, and even if they are able to obtain credit, the cost of such financing may increase and/or the time necessary to arrange such financing may be substantially prolonged. This lack of and increase in the cost of
financing could have a material adverse effect on the financial condition of our customers. A protracted disruption in the ability of our customers to access sources of liquidity could cause serious disruptions to or an overall deterioration in
their businesses, which could lead to the inability or failure on their part to meet their payment obligations to us.

The seasonality
and cyclical nature of the semiconductor industry and periodic overcapacity make us particularly vulnerable to significant and sometimes prolonged economic downturns.

The semiconductor industry has historically been highly cyclical and, at various times, has experienced significant downturns. Since most
of our customers operate in semiconductor-related industries, variations in order levels from our customers can result in volatility in our revenues and earnings. Because our business is, and will continue to be, largely dependent on the
requirements of semiconductor companies for our services, downturns in the semiconductor industry will lead to reduced demand for our services. For example, the semiconductor industry experienced a slowdown that had begun in late 2008. This slowdown
had, and similar slowdowns in the future may have, a material adverse effect on our revenues and business.

Our net operating
revenues are also typically affected by seasonal variations in market conditions that contribute to the fluctuation of the average selling prices of semiconductor services and products. The seasonal sales trends for semiconductor services and
products closely mirror those for consumer electronics, communication and computer sales. We generally experience seasonal lows in the demand for semiconductor services and products during the first half of the year, primarily as a result of
inventory correction by our customers. Any change in the general seasonal variations, which we cannot anticipate, may result in materially adverse effects on our revenues, operations and businesses.

Our operating results fluctuate from quarter to quarter, which makes it difficult to predict our future performance.

Our revenues, expenses and results of operations have varied significantly in the past and may fluctuate significantly from quarter to
quarter in the future due to a number of factors, many of which are beyond our control. Our business and operations have at times in the past been negatively affected by, and are expected to continue to be subject to the risk of, the following
factors:



| |  |  | the seasonality and cyclical nature of both the semiconductor industry and the markets served by our customers;
| | - |  | ---------------------------------------------------------------------------------------------------------------



| |  |  | our customers adjustments in their inventory;
| | - |  | ----------------------------------------------



| |  |  | the loss of a key customer or the postponement of orders from a key customer;
| | - |  | -----------------------------------------------------------------------------



| |  |  | the rescheduling and cancellation of large orders;
| | - |  | --------------------------------------------------



| |  |  | our ability to obtain equipment, raw materials, electricity, water and other required utilities on a timely and economic basis;
| | - |  | -------------------------------------------------------------------------------------------------------------------------------



| |  |  | outbreaks of contagious diseases, including severe acute respiratory syndrome, avian flu and swine flu;
| | - |  | -------------------------------------------------------------------------------------------------------



| |  |  | environmental events, such as fires and earthquakes, or industrial accidents; and
| | - |  | ---------------------------------------------------------------------------------



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| |  |  | technological changes.
| | - |  | ----------------------

Due to the factors noted above and other risks discussed in this section, many of which are beyond our control, you should not rely on
quarter-to-quarter comparisons to predict our future performance. Unfavorable changes in any of the above factors may seriously harm our business, financial condition and results of operations. In addition, our operating results may be below the
expectations of public market analysts and investors in some future periods. In this event, the price of the shares or ADSs may underperform or fall.

A decrease in demand for or selling prices of communication devices, consumer electronics and computer goods may decrease the demand for our
services and reduce our margins.

Our customers generally use the semiconductors produced in our fabs in a wide
variety of applications. We derive a significant percentage of our operating revenues from customers who use our manufacturing services to make semiconductors for communication devices, consumer electronics, PCs and other computers. The
communications and PC markets experienced a sudden and substantial market downturn and inventory correction in part of 2005 and again beginning in 2008. These downturns resulted in a reduced demand for our services and hence decreased our revenues
and earnings. Any significant decrease in the demand for communication devices, consumer electronics, PCs or other computers may further decrease the demand for our services. In addition, if the average selling prices of communication devices,
consumer electronics, PCs or other computers decline significantly, we will be pressured to further reduce our selling prices, which may reduce our revenues and, therefore, reduce our margins significantly. As demonstrated by downturns in demand for
high technology products in the past, market conditions can change rapidly, without apparent warning or advance notice. In such instances, our customers will experience inventory buildup and/or difficulties in selling their products and, in turn,
will reduce or cancel orders for wafers from us. The timing, severity and recovery of these downturns cannot be predicted accurately or at all. When they occur, our business, profitability and price of the shares and ADSs are likely to suffer.

Overcapacity in the semiconductor industry may reduce our revenues, earnings and margins.

The prices that we can charge our customers for our services are significantly related to the overall worldwide supply of integrated
circuits and semiconductor products. The overall supply of semiconductor products is based in part on the capacity of other companies, which is outside of our control. For example, in light of the current capacity shortage, some companies have
announced plans to increase capacity expenditures significantly. We believe such plans, if carried out as planned, will increase the industry-wide capacity and are likely to result in overcapacity in the future. In periods of overcapacity, if we are
unable to offset the adverse effects of overcapacity through, among other things, our technology and product mix, we may have to lower the prices we charge our customers for our services and/or we may have to operate at significantly less than full
capacity. Such actions could reduce our margin and weaken our financial condition and results of operations. We cannot give any assurance that an increase in the demand for foundry services in the future will not lead to overcapacity in the near
future, which could materially adversely affect our revenues, earnings and margins.

Any problem in the semiconductor outsourcing
infrastructure can adversely affect our net operating revenues and profitability.

Many of our customers depend on
third parties to provide mask tooling, assembly and test services. If these customers cannot timely obtain these services on reasonable terms, they may not order any foundry services from us. This may significantly reduce our net operating revenues
and negatively affect our profitability.

We may be unable to implement new technology as it becomes available, which may result in our
loss of customers and market share.

The semiconductor industry is developing rapidly and the related technology is
constantly evolving. If we do not anticipate the technology evolution and rapidly adopt new and innovative technology, we may not be able to produce sufficiently advanced services at competitive prices. There is a risk that our competitors may adopt
new technology before we do, resulting in our loss of market share. If we are unable to begin offering advanced services and processes on a competitive and timely basis, we may lose customers to our competitors providing similar technologies, which
may cause our net operating revenues to decline unless we can replace lost customers with new customers.



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We may be unable to provide leading technology to our customers if we lose the support of our
technology partners.

Enhancing our manufacturing process technologies is critical to our ability to provide services
for our customers. We intend to continue to advance our process technologies through internal research and development and alliances with other companies. Although we have an internal research and development team focused on developing new and
improved semiconductor manufacturing process technologies, we are also dependent on some of our technology partners to advance certain process technology portfolios. In addition, we currently have patent cross-licensing agreements with several
companies, including LSI Logic Corporation, or LSI, together with LSIs wholly-owned subsidiary, Agere Systems Inc., International Business Machines Corporation, or IBM, Freescale Semiconductor Inc., or Freescale, and Renesas Technology Corp.,
or Renesas, which merged with NEC Electronics Company on April 1, 2010, with Renesas Electronics as the successor company. Some mask and equipment vendors also supply our technology development teams with masks and equipment needed to develop
more advanced processing technologies. If we are unable to continue any of our joint development arrangements, patent cross-licensing agreements and other agreements, on mutually beneficial economic terms, if we re-evaluate the technological and
economic benefits of such relationships, if we are unable to enter into new technology alliances and arrangements with other leading and specialty semiconductor companies, or if we fail to secure masks and equipment from our vendors in a timely
manner sufficient to support our ongoing technology development, we may be unable to continue providing our customers with leading edge mass-producible process technologies and may, as a result, lose important customers, which would have a
materially adverse effect on our businesses, results of operations and financial condition.

Our business may suffer if we cannot
compete successfully in our industry.

The worldwide semiconductor foundry industry is highly competitive. We compete
with dedicated foundry service providers such as Taiwan Semiconductor Manufacturing Company Limited, Semiconductor Manufacturing International (Shanghai) Corporation and Globalfoundries Inc., as well as the foundry operation services of some
integrated device manufacturers, such as IBM, Samsung Electronics, or Samsung, and Toshiba Corporation, or Toshiba. Integrated device manufacturers principally manufacture and sell their own proprietary semiconductor products, but may also offer
foundry services. Other competitors such as DongbuAnam Semiconductor, Grace Semiconductor Manufacturing Corp., X-FAB Semiconductors Foundries AG and Silterra Malaysia Sdn. Bhd. have initiated efforts to expand and develop substantial additional
foundry capacity. New entrants and consolidations in the foundry business, such as the recent acquisition of Chartered Semiconductor by Globalfoundries, are likely to initiate a trend of competitive pricing and create potential overcapacity in
legacy technology. Some of our competitors have greater access to capital and substantially greater production, research and development, marketing and other resources than we do. As a result, these companies may be able to compete more aggressively
over a longer period of time than we can.

The principal elements of competition in the wafer foundry market include:



| |  |  | technical competence;
| | - |  | ---------------------



| |  |  | time-to-volume production and cycle time;
| | - |  | -----------------------------------------



| |  |  | time-to-market;
| | - |  | ---------------



| |  |  | research and development quality;
| | - |  | ---------------------------------



| |  |  | available capacity;
| | - |  | -------------------



| |  |  | manufacturing yields;
| | - |  | ---------------------



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| |  |  | customer service;
| | - |  | -----------------



| |  |  | price;
| | - |  | ------



| |  |  | management expertise; and
| | - |  | -------------------------



| |  |  | strategic alliances.
| | - |  | --------------------

Our ability to compete successfully also depends on factors partially outside of our control, including product availability and industry
and general economic trends. If we cannot compete successfully in our industry, our business may suffer.

We may not succeed in our
efforts to acquire operations in China and Japan.

In June 2009, our stockholders agreed to the merger with Infoshine
Technology Limited, or Infoshine, the holding company which owned 100% of Hejian Technology (Suzhou) Co., Ltd., or Hejian, a semiconductor manufacturer owning an 8-inch fab in Suzhou, China. Upon our merger with Infoshine, our company will be the
surviving corporation, and Infoshine will cease its corporate existence. All the assets and liabilities of Infoshine, along with its rights and obligations, will be assumed by our company in accordance with applicable laws. However, we cannot close
the merger without the approval of the government of Taiwan. In the past, the government of Taiwan has not approved large-scale mergers with, or acquisitions of, semiconductor operations in China. Although the government of Taiwan recently announced
a more favorable view toward such transactions, there can be no guarantee that it will approve our merger with Infoshine.

In
October 2009, our board of directors decided to obtain the common stock, preemptive rights and stock acquisition rights in UMC Japan, or UMCJ, through a tender offer to be made by our 100% owned subsidiary, Alpha Wisdom Limited, or AWL. After the
tender offer which was held from October 29, 2009 to December 14, 2009, 403,368 shares of UMCJ were purchased, and we and AWL together held 94.79% of UMCJ shares. UMCJ then delisted from the Jasdaq Securities Exchange in accordance with
its listing rules on March 19, 2010. Since not all of the outstanding equity securities of UMCJ were acquired, we expect to initiate certain squeeze-out procedures as provided in the Japanese Companies Act, with the expected result that we,
together with AWL, will own 100% of UMCJ. Although we expect the squeeze-out procedures in Japan to be completed within a reasonable period of time, there can be no assurance that such procedures will close in accordance with any particular time
schedule. The delay of the closing of the squeeze-out procedures may affect the benefit we expect to enjoy from an increase in the efficiency of our operation and our overall corporate value as a result of UMCJs integration into our company.

We compete for business on a global basis, and we believe it is necessary to establish and develop operations in multiple
strategic geographic regions. We cannot assure you that the mergers and acquisitions we have undertaken will be closed successfully nor that they will be closed on the terms we proposed. The failure to close these transactions or the failure to
close them on terms as favorable as we have entered into and announced may impair our ability to realize the benefits we intend to achieve and have a material and adverse effect on our operations and business.

We may not be able to successfully integrate the operations to be acquired in China and Japan with our global activities.

Even if we successfully close the merger with Infoshine and the acquisition of UMCJ, we may not be able to integrate their operations
with our current operations in accordance with the manners or the schedule or under the economic conditions we plan or target. In order to realize the benefits we expect from these transactions, we need to integrate the operations of the acquired
facilities with our current facilities. Our ability to integrate the operations and facilities of Hejian and UMCJ is dependent upon a number of factors, including:



| |  |  | technical competence of Hejian and UMCJ;
| | - |  | ----------------------------------------



| |  |  | management and engineering abilities of Hejian and UMCJ;
| | - |  | --------------------------------------------------------



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| |  |  | our ability to adapt Hejian and UMCJ to our processes, practices and management approaches;
| | - |  | -------------------------------------------------------------------------------------------



| |  |  | our ability to optimize the process, equipment, capacity, customer and technology mix in our global operations;
| | - |  | ---------------------------------------------------------------------------------------------------------------



| |  |  | communication and coordination between different locations; and
| | - |  | ---------------------------------------------------------------



| |  |  | cultural compatibility.
| | - |  | -----------------------

Failure to successfully integrate the operations of Hejian and UMCJ in the time frame we plan, or at all, will adversely affect the
benefits we expect to enjoy and may have material adverse effects on our business and operations.

Our profit margin may substantially
decline if we are unable to continuously improve our manufacturing yields, maintain high capacity utilization and optimize the technology mix of our silicon wafer production.

Our ability to maintain our profitability depends, in part, on our ability to:



| |  |  | maintain our capacity utilization, that is, the wafer-out quantity of 8-inch wafer equivalents divided by estimated total 8-inch equivalent capacity in
a specified period. The estimated capacity numbers may differ depending upon equipment delivery schedules, pace of migration to more advanced process technologies and other factors affecting production ramp-ups;
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | maintain or improve our manufacturing yield, that is, the percentage of usable manufactured devices on a wafer; and
| | - |  | -------------------------------------------------------------------------------------------------------------------



| |  |  | optimize the technology mix of our production, that is, the relative number of wafers manufactured utilizing different process technologies.
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------

Our manufacturing yields directly affect our ability to attract and retain customers, as well as the price
of our services. Our capacity utilization affects our operating results because a large percentage of our operating costs are fixed. Our technology mix affects utilization of our equipment and process technologies, as well as the prices we can
charge, either of which can affect our margins. If we are unable to continuously improve our manufacturing yields, maintain high capacity utilization or optimize the technology mix of our wafer production, our profit margin may substantially
decline.

We may not be able to implement our planned growth if we are unable to obtain the financing necessary to fund the substantial
capital expenditures we expect to incur.

Our business and the nature of our industry require us to make substantial
capital expenditures leading to a high level of fixed costs. We expect to incur significant capital expenditures in connection with our growth plans. These capital expenditures will be made in advance of any additional sales to be generated by new
or upgraded fabs as a result of these expenditures. Given the fixed-cost nature of our business, we have in the past incurred, and may in the future incur, operating losses if our revenues do not adequately offset our capital expenditures.
Additionally, our actual expenditures may exceed our planned expenditures for a variety of reasons, including changes in:



| |  |  | our growth plan;
| | - |  | ----------------



| |  |  | our process technology;
| | - |  | -----------------------



| |  |  | market conditions;
| | - |  | ------------------



| |  |  | interest rates;
| | - |  | ---------------



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| |  |  | exchange rate fluctuations; and
| | - |  | -------------------------------



| |  |  | prices of equipment.
| | - |  | --------------------

We cannot assure you that additional financing will be available on satisfactory terms, if at all. If adequate funds are not available on
satisfactory terms, we may be forced to curtail our expansion plans or delay the deployment of our services, which could result in a loss of customers and limit the growth of our business.

We depend on a small number of customers for a significant portion of our net operating revenues and a loss of some of these customers would result
in the loss of a significant portion of our net operating revenues.

We have been largely dependent on a small number
of customers for a substantial portion of our business. In 2009, our top ten customers accounted for 65.3% of our net operating revenues. We expect that we will continue to be dependent upon a relatively limited number of customers for a significant
portion of our net operating revenues. We cannot assure you that our net operating revenues generated from these customers, individually or in the aggregate, will reach or exceed historical levels in any future period. Loss or cancellation of
business from significant changes in scheduled deliveries to, or decreases in the prices of services sold to, any of these customers could significantly reduce our net operating revenues.

Our customers generally do not place purchase orders far in advance, which makes it difficult for us to predict our future revenues, adjust
production costs and allocate capacity efficiently on a timely basis.

Our customers generally do not place purchase
orders far in advance (usually two months before shipment). In addition, due to the cyclical nature of the semiconductor industry, our customers purchase orders have varied significantly from period to period. As a result, we do not typically
operate with any significant backlog, except in periods of extreme capacity shortage such as that experienced in late 2009 and early 2010. The lack of significant backlog and the unpredictable length and timing of semiconductor cycles make it
difficult for us to forecast our revenues in future periods. Moreover, our expense levels are based in part on our expectations of future revenues and we may be unable to adjust costs in a timely manner to compensate for revenue shortfalls. We
expect that in the future our net operating revenues in any quarter will continue to be substantially dependent upon purchase orders received in that quarter.

Our inability to obtain, preserve and defend intellectual property rights could harm our competitive position.

Our ability to compete successfully and achieve future growth will depend, in part, on our ability to protect our proprietary technology
and to secure critical processing technology that we do not own at commercially reasonable terms. We cannot assure you that in the future we will be able to independently develop, or secure from any third party, the technology required for upgrading
our production facilities. Our failure to successfully obtain such technology may seriously harm our competitive position.

Our ability to compete successfully also depends on our ability to operate without infringing on the proprietary rights of others. We
have no means of knowing what patent applications have been filed in the United States or in certain other countries until months after they are filed. The semiconductor industry, because of the complexity of the technology used and the multitude of
patents, copyrights and other overlapping intellectual property rights, is characterized by frequent litigation regarding patent, trade secret and other intellectual property rights. It is common for patent owners to assert their patents against
semiconductor manufacturers. We have received from time to time communications from third parties asserting patents that cover certain of our technologies and alleging infringement of intellectual property rights of others, and we expect to continue
to receive such communications in the future. See Item 4. Information on the Company  B. Business Overview  Litigation for more details of our ongoing litigation. In the event any third party were to make a valid claim
against us or against our customers, we could be required to:



| |  |  | seek to acquire licenses to the infringed technology which may not be available on commercially reasonable terms, if at all;
| | - |  | ----------------------------------------------------------------------------------------------------------------------------



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| |  |  | discontinue using certain process technologies, which could cause us to stop manufacturing certain semiconductors;
| | - |  | ------------------------------------------------------------------------------------------------------------------



| |  |  | pay substantial monetary damages; and/or
| | - |  | ----------------------------------------



| |  |  | seek to develop non-infringing technologies, which may not be feasible.
| | - |  | -----------------------------------------------------------------------

Any one of these developments could place substantial financial and administrative burdens on us and hinder our business. Litigation,
which could result in substantial costs to us and diversion of our resources, may also be necessary to enforce our patents or other intellectual property rights or to defend us or our customers against claimed infringement of the rights of others.
If we fail to obtain necessary licenses or if litigation relating to patent infringement or other intellectual property matters occurs, it could hurt our reputation as a technology leader in our industry and prevent us from manufacturing particular
products or applying particular technologies, which could reduce opportunities to generate revenues.

Two of our former executives were
charged with criminal offenses and our company was fined for violations of the Act Governing Relations Between Peoples of the Taiwan Area and the Mainland Area in connection with our alleged involvement in the operation of Hejian.

Hejian, a semiconductor manufacturer in Suzhou, China, was set up in December 2001. Soon after the establishment of
Hejian, there were various rumors that Hejian was set up by us, which we denied immediately because we did not inject any capital into nor did we transfer any technology to Hejian.

In early 2006, the Hsinchu District Prosecutors Office brought criminal charges in the Hsinchu District Court against our former
Chairman, Robert H. C. Tsao and our former Vice Chairman, John Hsuan in connection their alleged breach of fiduciary duties and certain alleged violations of the ROC Commercial Accounting Act. Prior to such charges, both our former Chairman and
former Vice Chairman resigned from their respective positions with our company. The Hsinchu District Court found our former Chairman and former Vice Chairman not guilty in October 2007, and the Prosecutors office filed an appeal with the
Taiwan High Court in November 2007. On December 31, 2008, the Taiwan High Court rejected the prosecutors appeal and sustained the Hsinchu District Courts decision. On January 20, 2009, Taiwan High Prosecutors office filed
an appeal with the Supreme Court. On December 3, 2009, the Supreme Court reversed the decision of, and remanded the case to, the Taiwan High Court for a new trial on the prosecutors appeal filed in November 2007. This case is now pending
in the Taiwan High Court.

The ROC Financial Supervisory Commission, or the ROC FSC, a regulatory authority that supervises
securities, banking, futures, and insurance activities in Taiwan, also began their investigation into whether there had been any violation of ROC securities laws by us. In April 2005, our former Chairman was fined (1) NT$2.4 million by the ROC
FSC for our delay in making timely public disclosure (within two days) regarding the information relating to Hejian, which had been resolved in our board meeting on March 4, 2005, or the March 4 Resolution, and (2) NT$0.6 million for
our failure to disclose the information regarding the assistance we had provided to Hejian. Our former Chairmans appeal in relation to such fines was overruled in early 2006, and a lawsuit was filed by our former Chairman with the Taipei
Administrative High Court to challenge the ROC FSC fines. In December 2007, the Taipei Administrative High Court revoked the ROC FSCs decision and ruled in favor of our former Chairman. In January 2008, the ROC FSC filed an appeal with the
Supreme Administrative Court. On November 5, 2009, the Supreme Administrative Court denied the ROC FSCs appeal. This case is now closed in favor of our former Chairman.

In connection with the March 4 Resolution, our company was also fined in the amount of NT$30,000 by the Taiwan Stock Exchange for an
alleged delay in making public disclosure. After our former Chairman and former Vice Chairman were indicted by the prosecutor, our company was found by the ROC Ministry of Economic Affairs, or the ROC MOEA, to be in violation of the Act Governing
Relations Between Peoples of the Taiwan Area and the Mainland Area and fined in the amount of NT$5 million for our alleged illegal investment in Hejian. Our appeal to the ROC MOEA in relation to such fines was denied in late 2006. We filed an
administrative lawsuit in December 2006 with the Taipei Administrative High Court to challenge the ROC MOEA fine. In July 2007, the Taipei Administrative High Court revoked the ROC MOEAs decision and ruled in our favor. In August 2007, the ROC
MOEA filed an appeal with the Supreme Administrative Court. On December 10, 2009, the Supreme Administrative Court reversed the decision of, and remanded the case to, the Taipei High Administrative Court for a new trial on our administrative
lawsuit. The case is now pending in the Taipei High Administrative Court.



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We have been offered a 15% interest in a holding company that owns Hejian, but such investment may not
materialize.

ROC law prohibits investment in China by Taiwanese makers of semiconductors without government approval.
In March 2005, the Chairman of Infoshine, which owns 100% of Hejian, offered us a 15% interest in Infoshine. Immediately after we received the offer, we filed an application with the Investment Commission of the ROC MOEA for its executive guidance
and disclosed our receipt of such offer to investors and the public.

In addition, at our stockholders meeting in June
2009, our stockholders approved our proposed merger with Infoshine. Upon consummation of the merger: (i) our company will be the surviving corporation; (ii) Infoshine will cease its corporate existence; (iii) all the assets and
liabilities of Infoshine, along with its rights and obligations, will be assumed by our company in accordance with applicable laws; and (iv) with the previously offered 15% interest in Infoshine, our company will obtain full ownership of
Hejian. Consummation of the merger and the realization of the 15% interest, however, are subject to approvals from governmental authorities. We cannot assure you that the ROC government will approve our acceptance of this 15% interest nor whether
the governmental authorities will approve the merger. Without such approvals, we cannot be assured to receive the benefits we anticipate from the merger.

Our operations and business will suffer if we lose one or more of our key personnel without adequate replacements.

Our future success to a large extent depends on the continued service of our Chairman and key executive officers. We do not carry key
person insurance on any of our personnel. If we lose the services of any of our Chairman or key executive officers, it could be difficult to find and integrate replacement personnel in a short period of time, which could harm our operations and the
growth of our business.

We may have difficulty attracting and retaining skilled employees, who are critical to our future success.

The success of our business depends upon attracting and retaining experienced executives, engineers and other
employees to implement our strategy. The competition for skilled employees is intense. We expect demand for personnel in Taiwan to increase in the future as new wafer fabrication facilities and other businesses are established in Taiwan. We also
expect demand for experienced personnel in other locations to increase significantly as our competitors establish and expand their operations. Some of our competitors are willing to offer better compensation than that we do to our executives,
engineers and other employees. We do not have long-term employment contracts with any of our employees. If we were unable to retain our existing personnel or attract, assimilate and recruit new experienced personnel in the future, it could seriously
disrupt our operations and delay or restrict the growth of our business.

Our transactions with affiliates and stockholders may hurt our
profitability and competitive position.

We have provided foundry services to several of our affiliates and
stockholders. These transactions were conducted on an arms-length basis. We currently do not provide any preferential treatment to any of these affiliates and stockholders. However, we may in the future reserve or allocate our production
capacity to these companies if there is a shortage of foundry services in the market to enable these companies to maintain their operations and/or to protect our investments in them. This reservation or allocation may reduce our capacity available
for our other customers, which may damage our relationships with other customers and discourage them from using our services. This may hurt our profitability and competitive position.



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The differences between ROC and U.S. accounting standards affect the amount of our net income.

Our financial statements are prepared under ROC GAAP, which differ in certain significant respects from US GAAP. For
a discussion of these differences, see Note 35 to our audited consolidated financial statements included elsewhere in this annual report. As a result, our net income (loss) attributable to the Company in 2007, 2008 and 2009 under US GAAP was
NT$(9,264) million, NT$(28,955) million and NT$2,572 million (US$80 million), respectively, as compared to net income (loss) attributable to the Company under ROC GAAP of NT$16,962 million, NT$(22,320) million and NT$3,874 million (US$121 million)
in 2007, 2008 and 2009, respectively.

The trend of adopting protectionist measures in certain countries, including the United States,
could have a material adverse impact on our results of operations and financial condition.

Governments in the United
States, China and certain other countries have implemented fiscal and monetary programs to stimulate economic growth as a result of the recent economic downturn, and many of these programs include protectionist measures that encourage the use of
domestic products and labor. Recent policy developments by the governments in China and elsewhere also suggest an increased unwillingness to allow international companies to invest in or acquire local businesses. Since many of our direct customers
and other downstream customers in the supply chain are located in or have operations in the countries where protectionist measures were adopted, such protectionist measures may have a material adverse effect on demand for our manufacturing services.

Any future outbreak of contagious diseases may materially and adversely affect our business and operations, as well as our financial
condition and results of operations.

Any future outbreak of contagious diseases, such as avian or swine influenza or
severe acute respiratory syndrome, may disrupt our ability to adequately staff our business and may generally disrupt our operations. If any of our employees is suspected of having contracted any contagious disease, we may under certain
circumstances be required to quarantine such employees and the affected areas of our premises. Therefore, we may have to temporarily suspend part of or all of our operations. Furthermore, any future outbreak may restrict the level of economic
activity in affected regions, including Taiwan, and affect the willingness and ability of our employees and customers to travel, which may also adversely affect our business and prospects. As a result, we cannot assure you that any future outbreak
of contagious diseases would not have a material adverse effect on our financial condition and results of operations.

Risks Relating to
Manufacturing

Our manufacturing processes are highly complex, costly and potentially vulnerable to impurities and other disruptions
that can significantly increase our costs and delay product shipments to our customers.

Our manufacturing processes
are highly complex, require advanced and costly equipment and are continuously being modified to improve manufacturing yields and product performance. Impurities or other difficulties in the manufacturing process or defects with respect to equipment
or supporting facilities can lower manufacturing yields, interrupt production or result in losses of products in process. As system complexity has increased and process technology has become more advanced, manufacturing tolerances have been reduced
and requirements for precision have become even more demanding. Although we have been enhancing our manufacturing capabilities and efficiency, from time to time we have experienced production difficulties that have caused delivery delays and quality
control problems, as is common in the semiconductor industry. In the past we have encountered the following problems:



| |  |  | capacity constraints due to changes in product mix or the delayed delivery of equipment critical to our production, including scanners, steppers and
chemical stations;
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | construction delays during expansions of our clean rooms and other facilities;
| | - |  | ------------------------------------------------------------------------------



| |  |  | difficulties in upgrading or expanding existing facilities;
| | - |  | -----------------------------------------------------------



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| |  |  | manufacturing execution system or automatic transportation system failure;
| | - |  | --------------------------------------------------------------------------



| |  |  | changing or upgrading our process technologies; and
| | - |  | ---------------------------------------------------



| |  |  | raw materials shortages and impurities.
| | - |  | ---------------------------------------

We cannot guarantee that we will be able to increase our manufacturing capacity and efficiency in the future to the same extent as in the
past.

We may have difficulty in ramping up production in accordance with our schedule, which could cause delays in product deliveries
and decreases in manufacturing yields.

As is common in the semiconductor industry, we have from time to time
experienced difficulties in ramping up production at new or existing facilities or effecting transitions to new manufacturing processes. As a result, we have suffered delays in product deliveries or reduced manufacturing yields. We may encounter
similar difficulties in connection with:



| |  |  | the migration to more advanced process technologies, such as 65- and 45/40- nanometer process technology;
| | - |  | ---------------------------------------------------------------------------------------------------------



| |  |  | the joint development with vendors for more powerful tools (both in production and inspection) needed in the future to meet advanced process technology
requirements; and
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | the adoption of new materials in our manufacturing processes.
| | - |  | -------------------------------------------------------------

We may face construction delays, interruptions, infrastructure failure and delays in upgrading or expanding existing facilities, or
changing our process technologies, any of which might adversely affect our production schedule. Our failure to follow our production schedule could delay the time required to recover our investments and seriously affect our profitability.

Our production schedules could be delayed and we may lose customers if we are unable to obtain raw materials and equipment in a timely
manner.

We depend on our suppliers for raw materials. To maintain competitive manufacturing operations, we must
obtain from our suppliers, in a timely manner, sufficient quantities of quality materials at acceptable prices. Although we source our raw materials from several suppliers, a small number of these suppliers account for a substantial amount of our
supply of raw materials because of the consistent quality of these suppliers wafers. For example, in 2009, we purchased a majority of our silicon wafers from four makers, Shin-Etsu Handotai Corporation, or Shin-Etsu, Siltronic AG, MEMC
Corporation and Sumco Group (including Sumco Corporation and Formosa Sumco Technology Corporation). We do not have long-term contracts with most of our suppliers. From time to time, our suppliers have extended lead time or limited the supply of
required materials to us because of capacity constraints. Consequently, from time to time, we have experienced difficulty in obtaining the quantities of raw materials we need on a timely basis.

In addition, from time to time we may reject materials that do not meet our specifications, resulting in declines in output or
manufacturing yields. We cannot assure you that we will be able to obtain sufficient quantities of raw materials and other supplies in a timely manner. If the supply of materials is substantially diminished or if there are significant increases in
the costs of raw materials, we may be forced to incur additional costs to acquire sufficient quantities of raw materials to sustain our operations, which may increase our marginal costs and reduce profitability.

We also depend on a limited number of manufacturers and vendors that make and maintain the complex equipment we use in our manufacturing
processes. We also rely on these manufacturers and vendors to improve our technology to meet our customers demands as technology improves. In periods of unpredictable and highly diversified market demand, the lead time from order to delivery
of this equipment can be as long as six to twelve months. If there are delays in the delivery of equipment or if there are increases in the cost of equipment, it could cause us to delay our introduction of new manufacturing capacity or technologies
and delay product deliveries, which may result in the loss of customers and revenues.



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We may be subject to the risk of loss due to fire because the materials we use in our manufacturing
processes are highly flammable.

We use highly flammable materials such as silane and hydrogen in our manufacturing
processes and may therefore be subject to the risk of loss arising from fires. The risk of fire associated with these materials cannot be completely eliminated. We maintain insurance policies to reduce losses caused by fire, including business
interruption insurance. While we believe that our insurance coverage for damage to our property and business interruption due to fire is consistent with semiconductor industry practice, our insurance coverage is subject to deductibles and
self-insured retention and may not be sufficient to cover all of our potential losses. If any of our fabs were to be damaged or cease operations as a result of a fire, it would temporarily reduce manufacturing capacity and reduce revenues.

We and many of our customers and suppliers are vulnerable to natural disasters and other events outside of our control, which may
seriously disrupt our operations.

Most of our assets and many of our customers and suppliers are located in certain
parts of Taiwan. Our operations and the operations of our customers and suppliers are vulnerable to earthquakes, floods, droughts, power losses and similar events that affect the locations of our operations. The occurrence of any of these events
could interrupt our services and cause severe damages to wafers in process, or cause significant business interruptions. Although we maintain property and business interruption insurance for such risks, there is no guarantee that future damages or
business loss from earthquakes will be covered by such insurance, that we will be able to collect from our insurance carriers, should we choose to claim under our insurance policies, or that such coverage will be sufficient. In addition, our
manufacturing facilities have occasionally experienced insufficient power supplies, and our operations have been disrupted.

Our
operations may be delayed or interrupted and our business could suffer if we violate environmental, safety and health, or ESH, regulations.

The semiconductor manufacturing process requires the use of various gases, chemical, hazardous materials and other substances such as
solvent and sulfuric acid which may have an impact on the environment. We are always subject to ESH regulations, and a failure to manage the use, storage, transportation, emission, discharge, recycling or disposal of raw materials or to comply with
these ESH regulations could result in (i) regulatory penalties, fines and other legal liabilities, (ii) suspension of production or delays in operation and capacity expansion, (iii) a decrease in our sales, (iv) an increase in
pollution cleaning fees and other operation costs, or (v) damage to our public image, any of which could harm our business. In addition, as ESH regulations are becoming more comprehensive and stringent, we may incur a greater amount of capital
expenditures in technology innovation and materials substitution in order to comply with such regulations, which may adversely affect our results of operations.

Climate change may negatively affect our business.

There is increasing concern that climate change is occurring and may have dramatic effects on human activity without aggressive
remediation steps. A modest change in temperature would result in increased coastal flooding, changing precipitation patterns and increased risk of extinction for the worlds species. Public expectations for reductions in greenhouse gas
emissions could result in increased energy, transportation and raw material costs.

Scientific examination of, political
attention to and rules and regulations on issues surrounding the existence and extent of climate may result in an increase in the cost of production due to increase in the prices of energy and introduction of energy or carbon tax. A variety of
regulatory developments have been introduced that focus on restricting or managing the emission of carbon dioxide, methane and other greenhouse gases. Enterprises may need to purchase at higher costs new equipment or raw materials with lower carbon
footprints. These developments and further legislation that is likely to be enacted could affect our operations negatively. Changes in environmental regulations, such those on the use of perfluorinated compounds, could increase our production costs,
which could adversely affect our results of operation and financial condition.



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In addition, more frequent droughts and floods, extreme weather conditions and rising sea
levels could occur due to climate change. The impact of such changes could be significant as most of our factories are located in islands including Taiwan and Singapore. For example, transportation suspension caused by extreme weather conditions
could harm the distribution of our products. We cannot predict the economic impact, if any, of disasters or climate change.

Disruptions
in the international trading environment may seriously decrease our international sales.

A substantial portion of our
net operating revenues is derived from sales to customers located in countries other than those where our fabs are located, including Taiwan, Singapore and Japan. In 2007, 2008 and 2009, sales to our overseas customers accounted for 62.0%, 70.2% and
61.8%, respectively, of our net operating revenues. We expect sales to customers outside of Taiwan, Singapore and Japan to continue to represent a significant portion of our net operating revenues. The success and profitability of our international
activities depend on certain factors beyond our control, such as general economic conditions, labor conditions, political stability, tax laws, import duties and foreign exchange controls of the countries in which we sell our products, and the
political and economic relationships between Taiwan, Singapore, Japan and these countries. As a result, our manufacturing services will continue to be vulnerable to disruptions in the international trading environment, including adverse changes in
foreign government regulations, political unrest and international economic downturns.

These disruptions in the international
trading environment affect the demand for our manufacturing services and change the terms upon which we provide our manufacturing services overseas, which could seriously decrease our international sales.

Political, Economic and Regulatory Risks

We face substantial political risks associated with doing business in Taiwan, particularly due to the tense relationship between the ROC and the
Peoples Republic of China, or the PRC, that could negatively affect the value of your investment.

Our principal
executive offices and most of our assets and operations are located in Taiwan. Accordingly, our business, financial condition and results of operations and the market price of our shares and the ADSs may be affected by changes in ROC governmental
policies, taxation, inflation or interest rates and by social instability and diplomatic and social developments in or affecting Taiwan which are outside of our control. Taiwan has a unique international political status. Since 1949, Taiwan and the
Chinese mainland have been separately governed. The PRC claims that it is the sole government in China and that Taiwan is part of China. Although significant economic and cultural relations have been established during recent years between the ROC
and the PRC, relations have often been strained. The PRC government has refused to renounce the use of military force to gain control over Taiwan and, in March 2005, further passed an Anti-Secession Law that authorizes non-peaceful means and other
necessary measures should Taiwan move to gain independence from the PRC. Past developments in relations between the ROC and the PRC have on occasions depressed the market prices of the securities of companies in the ROC. Such initiatives and actions
are commonly viewed as having a detrimental effect to reunification efforts between the ROC and the PRC. Relations between the ROC and the PRC and other factors affecting military, political or economic conditions in Taiwan could materially and
adversely affect our financial condition and results of operations, as well as the market price and the liquidity of our securities.

Our business depends on the support of the ROC government, and a decrease in this support may increase our labor costs and decrease our net income
after tax.

The ROC government has been very supportive of technology companies such as us. For instance, the
ROCs labor laws and regulations do not require employees of semiconductor companies, including our company, to be unionized, and permit these employees to work shifts of 10 hours each day on a two-days-on, two-days-off basis. We cannot assure
you, however, that these labor laws and regulations will not be changed in the future. In the event that the ROC government requires our employees to be unionized or decreases the number of hours our employees may work in a given day, our labor
costs may increase significantly which could result in lower margins.



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We, like many ROC technology companies, have benefited from substantial tax incentives
provided by the ROC government. In 2009, such incentives resulted in a tax credit in the amount of NT$630 million (US$20 million). Among the incentives broadly enjoyed by ROC technology companies, various tax benefits granted under Chapter 2 and
Article 70-1 of the Statute for Upgrading Industries expired on December 31, 2009. Despite the fact that we can still enjoy the five-year tax holidays for the relevant investment plans approved by ROC tax authority before the expiration of the
Statute for Upgrading Industries, if more incentives are curtailed or eliminated, our net income after tax attributable to us may decrease.

The trading price of the shares and ADSs may be adversely affected by the general activities of the Taiwan Stock Exchange and U.S. stock exchanges,
the trading price of our shares, increases in interest rates and the economic performance of Taiwan.

Our shares are
listed on the Taiwan Stock Exchange. The trading price of our ADSs may be affected by the trading price of our shares on the Taiwan Stock Exchange and the economic performance of Taiwan. The Taiwan Stock Exchange is smaller and, as a market, more
volatile than the securities markets in the United States and a number of European countries. The Taiwan Stock Exchange has experienced substantial fluctuations in the prices and volumes of sales of listed securities, and there are currently limits
on the range of daily price movements on the Taiwan Stock Exchange. The Taiwan Stock Exchange is particularly volatile during times of political instability, such as when relations between Taiwan and the PRC are strained. Moreover, the Taiwan Stock
Exchange has experienced problems such as market manipulation, insider trading and payment defaults, and the government of Taiwan has from time to time intervened in the stock market by purchasing stocks listed on the Taiwan Stock Exchange. The
recurrence of these or similar problems could decrease the market price and liquidity of the shares and ADSs.

From
September 19, 2000, the commencement date of the listing of our ADSs on the New York Stock Exchange, or the NYSE, to December 31, 2009, the daily reported closing prices of our ADSs ranged from US$14.88 per ADS to US$1.51 per ADS. The
market price of the ADSs may also be affected by general trading activities on the U.S. stock exchanges, which recently have experienced significant price volatility with respect to shares of technology companies. Fluctuation in interest rates and
other general economic conditions may also have an effect on the market price of the ADSs.

Currency fluctuations could increase our
costs relative to our revenues, which could adversely affect our profitability.

More than half of our net operating
revenues are denominated in currencies other than New Taiwan dollars, primarily U.S. dollars and Japanese Yen. On the other hand, more than half of our costs of direct labor, raw materials and overhead are incurred in New Taiwan dollars. Although we
hedge a portion of the resulting net foreign exchange position through the use of forward exchange contracts, we are still affected by fluctuations in exchange rates among the U.S. dollar, the Japanese Yen, the New Taiwan dollar and other
currencies. Any significant fluctuation in exchange rates may be harmful to our financial condition. In addition, fluctuations in the exchange rate between the U.S. dollar and the New Taiwan dollar will affect the U.S. dollar value of the ADSs and
the U.S. dollar value of any cash dividends we pay, which could have a corresponding effect on the market price of the ADSs.

Our future
tax obligations may adversely affect our profitability.

The ROC government enacted the ROC Income Basic Tax Act, also
known as the Minimum Income Tax Statute, or the Statute, which became effective on January 1, 2006 and imposes an alternative minimum tax, or AMT. The AMT is designed to remedy the current excessive tax incentives for individuals
and businesses. The AMT imposed under the Statute is a supplemental tax which is payable if the income tax payable pursuant to the ROC Income Tax Act is below the minimum amount prescribed under the Statute. For the purpose of calculating the AMT,
the taxable income defined under the Statute includes most income that is exempted from income tax under various legislations, such as those providing tax holidays and investment tax credits. For businesses, the incomes which previously enjoyed
tax-exemption privileges under relevant tax regulations, such as the Act for the Establishment and Administration of the Science Parks and the Statute for Upgrading Industries will be subject to the new AMT system for the calculation of business
taxpayers aggregate incomes. The AMT rate for business entities is 10%. Under the Statute, a company will be subject to a 10% AMT if its annual taxable income under the Statute exceeds NT$2 million. However, the Statute grandfathered certain
tax exemptions granted prior to the enactment of the AMT. For example, businesses already qualified for five-year tax holidays and having obtained the applicable permission issued by the competent authority before December 31, 2005 may continue
to enjoy tax incentives, and the income exempted thereunder will not to be added to the taxable income for the purpose of calculating the AMT, so long as the construction of their investment projects breaks ground within one year from
January 1, 2006 and is completed within three years commencing from the day immediately following their receipts of the applicable permission issued by the competent authority. In the event of the expiration of the tax exemption periods or an
increase in other taxable income subject to the Statute, such 10% AMT may adversely reduce our net income after tax.



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Risks Related to the Shares and ADSs and Our Trading Markets

Restrictions on the ability to deposit shares into our ADS program may adversely affect the liquidity and price of the ADSs.

The ability to deposit shares into our ADS program is restricted by ROC law. Under current ROC law, no person or entity, including you
and us, may deposit shares into our ADS program without specific approval of the ROC FSC except for the deposit of the shares into our ADS program and for the issuance of additional ADSs in connection with:



| | (1) | distribution of share dividends or free distribution of our shares;
| | --- | -------------------------------------------------------------------



| | (2) | exercise of the preemptive rights of ADS holders applicable to the shares evidenced by ADSs in the event of capital increases for cash; or
| | --- | ------------------------------------------------------------------------------------------------------------------------------------------



| | (3) | delivery of our shares which are purchased in the domestic market in Taiwan directly by the investor or through the depositary or are already in the possession of the
investor to the custodian for deposit into our ADS program, subject to the following conditions: (a) the re-issuance is permitted under the deposit agreement and custody agreement, (b) the depositary may accept deposit of those shares and
issue the corresponding number of ADSs with regard to such deposit only if the total number of ADSs outstanding after the issuance does not exceed the number of ADSs previously approved by the ROC FSC, plus any ADSs issued pursuant to the events
described in (1) and (2) above and (c) this deposit may only be made to the extent previously issued ADSs have been withdrawn.
| | --- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

As a result of the limited ability to deposit shares into our ADS program, the prevailing market price of our ADSs on the NYSE may differ
from the prevailing market price of the equivalent number of our shares on the Taiwan Stock Exchange.

Holders of our ADSs will not have
the same proposal or voting rights as the holders of our shares, which may affect the value of your investment.

Except for treasury shares and shares held by our subsidiaries which meet certain criteria provided under the ROC Company Act, each
common share is generally entitled to one vote and no voting discount will be applied. However, except as described in this annual report and in the deposit agreement, holders of our ADSs will not be able to exercise voting rights attached to the
shares evidenced by our ADSs on an individual basis. Holders of our ADSs will appoint the depositary or its nominee as their representative to exercise the voting rights attached to the shares represented by the ADSs. The voting rights attached to
the shares evidenced by our ADSs must be exercised as to all matters brought to a vote of stockholders collectively in the same manner.



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Moreover, holders of the ADSs do not have individual rights to propose any matter for
stockholders votes at our stockholders meetings. However, holders of at least 51% of the ADS outstanding at the relevant record date may request the depositary to submit to us one proposal per year for consideration at our annual
ordinary stockholders meeting, provided that such proposal meets certain submission criteria and limitations, including the language and the length of the proposal, the time of submission, the required certification or undertakings, and the
attendance at the annual ordinary stockholders meeting. A qualified proposal so submitted by the depositary will still be subject to review by our board of directors and there is no assurance that the proposal will be accepted by our board of
directors for inclusion in the agenda of our annual ordinary stockholders meeting. Furthermore, if we determine, at our discretion, that the proposal submitted by the depositary does not qualify, we have no obligation to notify the depositary
or to allow the depositary to modify such proposal.

Furthermore, if holders of at least 51% of the ADSs outstanding at the
relevant record date instruct the depositary to vote in the same manner regarding a resolution, including election of directors and/or supervisors, the depositary will appoint our Chairman, or his designee, to represent the ADS holders at the
stockholders meetings and to vote the shares represented by the ADSs outstanding in the manner so instructed. If by the relevant record date the depositary has not received instructions from holders of ADSs holding at least 51% of the ADSs to
vote in the same manner for any resolution, then the holders will be deemed to have instructed the depositary to authorize and appoint our Chairman, or his designee, to vote all the shares represented by ADSs at his sole discretion, which may not be
in your interest.

The rights of holders of our ADSs to participate in our rights offerings may be limited, which may cause dilution to
their holdings.

We may from time to time distribute rights to our stockholders, including rights to acquire our
securities. Under the deposit agreement, the depositary will not offer those rights to ADS holders unless both the rights and the underlying securities to be distributed to ADS holders are either registered under the Securities Act or exempt from
registration under the Securities Act. We are under no obligation to file a registration statement with respect to any such rights or underlying securities or to endeavor to cause such a registration statement to be declared effective. Accordingly,
holders of our ADSs may be unable to participate in our rights offerings and may experience dilution in their holdings.

Changes in
exchange controls that restrict your ability to convert proceeds received from your ownership of ADSs may have an adverse effect on the value of your investment.

Your ability to convert proceeds received from your ownership of ADSs depends on existing and future exchange control regulations of the
Republic of China. Under the current laws of the Republic of China, an ADS holder or the depositary, without obtaining further approvals from the ROC Central Bank of China, or the CBC, or any other governmental authority or agency of the Republic of
China, may convert NT dollars into other currencies, including U.S. dollars, in respect of:



| |  |  | the proceeds of the sale of shares represented by ADSs or received as share dividends with respect to the shares and deposited into the depositary
receipt facility; and
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | any cash dividends or distributions received from the shares represented by ADSs.
| | - |  | ---------------------------------------------------------------------------------

In addition, the depositary may also convert into NT dollars incoming payments for purchases of shares for deposit in the depositary
receipt facility against the creation of additional ADSs. If you withdraw the shares underlying your ADSs and become a holder of our shares, you may convert into NT dollars subscription payments for rights offerings. The depositary may be required
to obtain foreign exchange approval from the CBC on a payment-by-payment basis for conversion from NT dollars into foreign currencies of the proceeds from the sale of subscription rights of new shares. Although it is expected that the CBC will grant
approval as a routine matter, required approvals may not be obtained in a timely manner, or at all.



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Under the Republic of China Foreign Exchange Control Law, the Executive Yuan of the Republic
of China may, without prior notice but subject to subsequent legislative approval, impose foreign exchange controls or other restrictions in the event of, among other things, a material change in international economic conditions.

Our public stockholders may have more difficulty protecting their interests than they would as stockholders of a U.S. corporation.

Our corporate affairs are governed by our articles of incorporation and by laws governing ROC corporations. The
rights of our stockholders to bring stockholders suits against us or our board of directors under ROC law are much more limited than those of the stockholders of U.S. corporations. Therefore, our public stockholders may have more difficulty
protecting their interests in connection with actions taken by our management, members of our board of directors or controlling stockholders than they would as stockholders of a U.S. corporation. Please refer to Item 10. Additional
InformationB. Memorandum and Articles of AssociationRights to Bring Stockholders Suits included elsewhere in this annual report for a detailed discussion of the rights of our stockholders to bring legal actions against us or
our directors under ROC law.

Holders of our ADSs will be required to appoint several local agents in Taiwan if they withdraw shares
from our ADS program and become our stockholders, which may make ownership burdensome.

Non-ROC persons wishing to
withdraw shares represented by their ADSs from our ADS program and hold our shares represented by those ADSs are required to, among other things, appoint a local agent or representative with qualifications set forth by the ROC FSC to open a
securities trading account with a local brokerage firm, pay ROC taxes, remit funds and exercise stockholders rights. In addition, the withdrawing holders are also required to appoint a custodian bank with qualifications set forth by the ROC
FSC to hold the securities in safekeeping, make confirmations, settle trades and report all relevant information. Without making this appointment and opening of the accounts, the withdrawing holders would not be able to subsequently sell our shares
withdrawn from a depositary receipt facility on the Taiwan Stock Exchange. Under ROC law and regulations, except under limited circumstances, PRC persons are not permitted to withdraw the shares underlying the ADSs or to register as a stockholder of
our company. Under the Regulations Governing Securities Investment and Futures Trading in Taiwan by Mainland Area Investors promulgated by the ROC Executive Yuan on April 30, 2009, only qualified domestic institutional investors, or QDIIs, and
limited entities or individuals who meet the qualification requirements set forth therein are permitted to own shares of an ROC company listed for trading on the Taiwan Stock Exchange, provided that such mainland area investors accumulated
investment shall not exceed 10 percent of the shares of any ROC company and that their shareholdings are subject to certain restrictions as set forth in the abovementioned regulations.

You may not be able to enforce a judgment of a foreign court in the ROC.

We are a company limited by shares incorporated under the ROC Company Act. Most of our assets and most of our directors, supervisors and
executive officers and experts named in the registration statement are located in Taiwan. As a result, it may be difficult for you to enforce judgments obtained outside Taiwan upon us or such persons in Taiwan. We have been advised by our ROC
counsel that any judgment obtained against us in any court outside the ROC arising out of or relating to the ADSs will not be enforced by ROC courts if any of the following situations shall apply to such final judgment:



| |  |  | the court rendering the judgment does not have jurisdiction over the subject matter according to ROC law;
| | - |  | ---------------------------------------------------------------------------------------------------------



| |  |  | the judgment or the court procedure resulting in the judgment is contrary to the public order or good morals of the ROC;
| | - |  | ------------------------------------------------------------------------------------------------------------------------



| |  |  | the judgment was rendered by default, except where the summons or order necessary for the commencement of the action was legally served on us within
the jurisdiction of the court rendering the judgment within a reasonable period of time or with judicial assistance of the ROC; or
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



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| |  |  | judgments of ROC courts are not recognized in the jurisdiction of the court rendering the judgment on a reciprocal basis.
| | - |  | -------------------------------------------------------------------------------------------------------------------------

We may be considered a passive foreign investment company, which could result in adverse U.S. tax consequences for U.S. investors.

We do not believe that we were a passive foreign investment company, or PFIC, for 2009 and we do not expect to become
one in the future, although there can be no assurance in this regard. Based upon the nature of our business activities, we may be classified as a passive foreign investment company for U.S. federal income tax purposes. Such characterization could
result in adverse U.S. tax consequences to you if you are a U.S. investor.

For example, if we are a PFIC, our U.S. investors
may become subject to increased tax liabilities under U.S. tax laws and regulations and will become subject to burdensome reporting requirements. The determination of whether or not we are a PFIC is made on an annual basis and will depend on the
composition of our income and assets from time to time. Specifically, for any taxable year we will be classified as a PFIC for U.S. tax purposes if either (i) 75% or more of our gross income in a taxable year is passive income or (ii) the
average percentage of our assets (which includes cash) by value in a taxable year which produce or are held for the production of passive income is at least 50%. The calculation of the value of our assets will be based, in part, on the quarterly
market value of shares and ADSs, which is subject to change. In addition, the composition of our income and assets will be affected by how, and how quickly, we spend the cash we have raised in prior offerings. See TaxationU.S. Federal
Income Tax Considerations For U.S. PersonsPassive foreign investment company.



|ITEM 4. | INFORMATION ON THE COMPANY
|------- | --------------------------

A. History and Development of the Company

Our legal and commercial name is United Microelectronics Corporation, commonly known as UMC. We were incorporated under the
ROC Company Law as a company limited by shares in May 1980 and our shares were listed on the Taiwan Stock Exchange in 1985. Our principal executive office is located at No. 3 Li-Hsin Road II, Hsinchu Science Park, Hsinchu, Taiwan, Republic of
China, and our telephone number is 886-3-578-2258. Our Internet website address is www.umc.com. The information on our website does not form part of this annual report. Our ADSs have been listed on the NYSE under the symbol UMC since
September 19, 2000.

We are one of the worlds largest independent semiconductor foundries and a leader in
semiconductor manufacturing process technologies. Our primary business is the manufacture, or fabrication, of semiconductors, sometimes called chips or integrated circuits, for others. Using our own proprietary
processes and techniques, we make chips to the design specifications of our many customers. Our company maintains a diversified customer base across industries, including communication, consumer electronics, computer, memory and others, while
continuing to focus on manufacturing for high growth, large volume applications, including networking, telecommunications, Internet, multimedia, PCs and graphics. We sell and market mainly wafers which in turn are used in a number of different
applications by our customers. Percentages of our net wafer sales derived from our products used in communication devices, consumer electronics, PCs, memory and other applications were 59.6%, 24.1%, 14.4%, 0.5% and 1.4%, respectively, in 2009.

We focus on the development of leading mass-producible manufacturing process technologies. We were among the first in the
foundry industry to go into commercial operation with such advanced capabilities as producing integrated circuits with line widths of 0.25, 0.18, 0.15, 0.13 micron and 90, 65 and 45/40 nanometer. Advanced technologies have enabled electronic
products, especially in relation to computer, communication and consumer products, to integrate their functions in new and innovative methods. Networking capabilities have allowed electronic products such as computers, cell phones, televisions,
PDAs, CD-ROMs and digital cameras to communicate with each other to exchange information. More powerful semiconductors are required to drive multimedia functions (e.g. processing visual data) and to resolve network bandwidth issues. At the same
time, the trend toward personal electronic devices has resulted in products that are becoming physically smaller and consume less power. Process technology must also shrink the volumes of products aggressively to cater to this trend of integrating
multiple functions, reducing the number of components needed for operation and lowering IC power consumption. Dedicated semiconductor foundries need to achieve this process improvement and at the same time develop multiple process technologies to
satisfy the varying needs of computer, communication and consumer products. We believe our superior process technologies will enable us to continue to offer our customers significant performance benefits for their products, faster time-to-market
production, cost savings and other competitive advantages.



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We provide high quality service based on our performance. In todays marketplace, we
believe it is important to make available not only the most manufacturable processes, but also the best solutions to enable customers to design integrated circuits that include entire systems on a chip. Through these efforts, we intend to be the
foundry solution for SoC customer needs. To achieve this goal, we believe it is necessary to timely develop and offer the intellectual property and design support that customers need to ensure their specific design blocks work with the other design
blocks of the integrated circuit system in the manner intended. Accordingly, we have a dedicated intellectual property and design support team which focuses on timely development of the intellectual property and process specific design blocks our
customers need in order to develop products that operate and perform as intended. Our design service team actively cooperates with our customers and vendors of cell libraries and intellectual property offerings to identify, early in the
product/market cycle, the offerings needed to ensure that these coordinated offerings are available to our customers in silicon verified form in a streamlined and easy-to-use manner. As a result, we are able to ensure the timely delivery of service
offerings from the earliest time in the customer design cycle, resulting in a shorter time-to-volume production. We also provide our customers with real-time online access to their confidential production data, resulting in superior communication
and efficiency. We further address our customers needs using our advanced technology and proven methodology to achieve fast cycle time, high yield, production flexibility and close customer communication. For example, we select and configure
our clean rooms and equipment and develop our processes to maximize the flexibility in meeting and adapting to rapidly changing customer and industry needs. As a result, our cycle time, or the period from customer order to wafer delivery, and our
responsiveness to customer request changes are among the fastest in the dedicated foundry industry. We also provide high quality service and engineering infrastructure.

Our production capacity is comparable to that of certain largest companies in the semiconductor industry, and we believe our leading edge
and high volume capability is a major competitive advantage.

Our technology and service have attracted two principal types of
foundry industry customers: fabless design companies and integrated device manufacturers. Fabless design companies design, develop and distribute proprietary semiconductor products but do not maintain internal manufacturing capacity. Instead, these
companies depend on outside manufacturing sources. Integrated device manufacturers, in contrast, traditionally have integrated internally all functions  manufacturing as well as design, development, sales and distribution.

Our primary customers, in terms of our sales revenues, include premier integrated device manufacturers, such as Texas Instruments,
Infineon, Freescale, STMicroelectronics, and Kawasaki, and leading fabless design companies, such as Xilinx, Broadcom, MediaTek, Realtek, Novatek, and Marvell. In 2009, our companys top ten customers accounted for 65.3% of our net operating
revenues. We believe our success in attracting these customers is a direct result of our commitment to high quality service and our intense focus on customer needs and performance.

For the disclosure related to our acquisition of Hejian, the contents of the Form 6-K we furnished to the Commission on April 29,
2009 (File No. 001-15128) are hereby incorporated by reference. At our annual stockholders meeting in 2009, the stockholders approved our proposed merger with Infoshine, the holding company of Hejian, with the merger subject to our
ability to obtain the approvals from the necessary authorities pursuant to relevant laws and regulations. Hejian is engaged in the semiconductor foundry business and owns an 8-inch fab in Suzhou, China. Investment by an ROC company in the PRC to
engage in semiconductor foundry business is strictly regulated by the ROC government. Traditionally, only manufacturing of semiconductor wafers of 8 inches or smaller sizes is permitted, and the number of total investment projects in the
semiconductor foundry business undertaken by ROC companies, taken as a whole, is subject to a quota. When our stockholders approved the merger, however, there was no quota available. In February 2010, the relevant restrictions were partially lifted,
and the quota and the restriction on the size of semiconductor wafers produced are not applicable if (i) an investment is made through merger or acquisition; (ii) the rest of the applicable requirements, such as the processing technology
gap between the ROC company and its investment target, shall be satisfied; and (iii) the investment application is approved by the ROC government, which approval is at the governments discretion. We plan to file an application for
approval of our merger with the holding company of Hejian, but there can be no guarantee that we will successfully obtain the approval for the merger.



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For the disclosure related to our tender offer of UMCJ, the contents of the Forms 6-K we
furnished to the Commission on October 28, 2009 (File No. 001-15128) and December 21, 2009 (File No. 001-15128) are hereby incorporated by reference. After the tender offer which was held from October 29, 2009 to
December 14, 2009, 403,368 shares of UMCJ were purchased, and we and AWL together held 94.79% of UMCJ shares. UMCJ then delisted from the Jasdaq Securities Exchange in accordance with its listing rules on March 19, 2010. Since not all of
the outstanding equity securities of UMCJ were acquired, we expect to initiate certain squeeze-out procedures as provided in the Japanese Companies Act, with the expected result that we, together with AWL, will own 100% of UMCJ. By owning 100% of
UMCJ and proceeding with integration, we expect UMCJ to reap the benefits of economies of scale and efficiency of operations through developing business on a global basis with our company. The reorganization and restructuring of UMCJ are also
expected to increase the efficiency of our operation and to increase our overall corporate value. We also believe the integration will be beneficial to UMCJs customers, as it is expected to enable UMCJ to offer more competitive globally-based
services along with our companys broader range of technology and more competitive production capabilities.

Please refer
to Item 5. Operating and Financial Review and ProspectsB. Liquidity and Capital Resources for a discussion of our capital expenditures in the past three years and the plan for the current year.

Our Strategy

To
maintain and enhance our position as a market leader, we have adopted a business strategy with a focus on a partnership business model designed to accommodate our customers business needs and objectives and to promote their interests as our
partners. We believe that our success and profitability are inseparable from the success of our customers. The goal in this business model is to create a network of partnerships or alliances among integrated device manufacturers, intellectual
property and design houses, as well as foundry companies. We believe that we and our partners will benefit from the synergy generated through such long-term partnerships or alliances and the added value to be shared among the partners. The key
elements of our strategy are:

Operate as a Customer-Driven Foundry. We plan to operate as a customer-driven
foundry. The increasing complexity of 65-nanometer and more advanced technologies has impacted the entire chip industry, as ICs can now be designed with greater gate density and higher performance while incorporating the functions of an entire
system. These advanced designs have created a new proliferating market of advanced mobile digital devices such as smart phones, which have decreased in size but greatly increased in functionality. We collaborate closely with our customers as well as
partners throughout the entire supply chain, including equipment, electronic design automation tool and intellectual property, or IP, vendors to work synergistically toward each customers SoC silicon solution. We also possess experience and
know-how in system design and architecture to integrate customer designs with advanced process technologies and IP. We believe the result is a higher rate of first-pass silicon success for our SoC solutions. Our customer-driven foundry solutions
begin with a common logic-based platform, where designers can choose the process technologies and transistor options that best fit their specific application. From there, technologies such as radio frequency complementary metal-oxide-semiconductor,
or RF CMOS, and embedded Flash memories can be used to further fine-tune the process for customers individual needs. Furthermore, as IP has become critical resources for SoCs, our portfolio includes basic design building blocks as well as more
complex IP of optimized portability and cost, developed both internally and by third-party partners. With advanced technology, a broad IP portfolio, system knowledge and advanced 300-millimicron manufacturing, we offer comprehensive solutions that
help customers deliver successful results in a timely fashion.

Build up Customer-focused Partnership Business
Model. We have focused on building partnership relationships with our customers, and we strive to help our customers achieve their objectives through close cooperation. Unlike the traditional buy-and-sell relationship between a foundry and
its customers, we believe our partnership business model will help us understand our customers requirements and, accordingly, better accommodate our customers needs in a number of ways, such as customized processes and services that
optimize the entire value chain (not just the foundry portion) and intellectual property-related support. We believe that this business model will enable us to deliver our products to our customers at the earliest time our customers require for
their design cycle, resulting in shorter time-to-market and time-to-volume production. Furthermore, we believe we will render more cost-effective services by focusing our research and development expenditures on the specific requirements of our
customers. We believe our partnership business model will help us not only survive a market downturn, but also achieve a better competitive position.



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Continue to Focus on High Growth Applications and Customers. We believe one
measure of a successful foundry company is the quality of its customers. We focus our sales and marketing on customers who are established or emerging leaders in industries with high growth potential. Our customers include industry leaders such as
AMD (ATI), Broadcom, Marvell, Infineon, MediaTek, Novatek, Realtek, SanDisk, STMicroelectronics, Texas Instruments, Freescale and Xilinx. We seek to maintain and expand our relationships with these companies. We strive to demonstrate to these
customers the superiority and flexibility of our manufacturing, technology and service capabilities and to provide them with production and design assistance. We are also making efforts to further diversify our customer portfolio in order to
maintain a balanced exposure to different applications and different customers. We believe these efforts strengthen our relationships with our customers and enhance our reputation in the semiconductor industry as a leading foundry service provider.

Maintain Our Leading Position in Mass-Producible Semiconductor Technology and Selectively Pursue Strategic Investments
in New Technologies. We believe that maintaining and enhancing our leadership in mass-producible semiconductor manufacturing technology is critical to attract and retain customers. Our reputation for technological excellence has attracted
both established and emerging leaders in the semiconductor industries who work closely with us on technology development. In addition, we believe our superior processing expertise has enabled us to provide flexible production schedules to meet our
customers particular needs. We plan to continue building internal research and development expertise, to focus on process development and to establish alliances with leading and specialty semiconductor companies to accelerate access to
next-generation and specialized technologies. For example, we expect to deliver our 28-nanometer technology to our customers in 2010 to significantly increase the competitive advantages of our customers by providing better device performance in a
smaller die size. We believe our progress in developing more advanced process technologies has benefited our customers in the fields of computers, communications, consumer electronics and others with special preferences in certain aspects of the
products, such as the ultimate performance, density and power consumption.

We also recognize that every company has limited
resources and that the foundry industry is ever-evolving. Accordingly, we believe we should invest in new research and development technology intelligently and in a cost-effective manner to achieve the ultimate output of the resulting technology. In
doing so, we balance the rate of return of our research and development with the importance of developing a technology at the right time to enhance our competitive edge without unduly diluting our profitability. We intend to avoid investments in
technologies that do not present a commercial potential for volume production. We believe that to develop the earliest and most advanced semiconductor technology without regard to its potential for near term volume production may prove costly to our
operations and would not strengthen our competitive position. We perceive a benefit to defer investment in the premature equipment needed to claim the earliest advanced technology and instead to purchase a more advanced and less expensive version of
equipment from vendors who design such equipment based on pre-production lessons learned from the earliest technology.

Maintain Scale and Capacity Capabilities to Meet Customer Requirements, with a Focus on 12-inch Wafer Facilities for Future
Expansion. We believe that maintaining our foundry capacity with advanced technology and facilities is critical to the maintenance of our industry leadership. Our production capacity is currently among the largest of all semiconductor
foundries in the world. We intend to increase our 12-inch wafer production capacity to meet the needs of our customers and to fully capitalize on the expected growth of our industry. Our future capacity expansion plans will focus on 12-inch wafer
facilities in order to maintain our technology leadership. 12-inch wafers offer manufacturing advantages over 8-inch wafers due to, among other reasons, the greater number of chips on each wafer and the advantages only offered on newer 12-inch
capable equipment. In addition, 12-inch wafer facilities present a more cost-effective solution in achieving an economic scale of production. We intend to carefully monitor current market conditions in order to optimize the timing of our capital
spending.



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B. Business Overview

Manufacturing Facilities

To maintain a leading position in the foundry business, we have placed great emphasis on achieving and maintaining a high standard of
manufacturing quality. As a result, we seek to design and implement manufacturing processes that produce consistent, high manufacturing yields to enable our customers to estimate, with reasonable certainty, how many wafers they need to order from
us. In addition, we continuously seek to enhance our production capacity and process technology, two important factors that characterize a foundrys manufacturing capability. Our large production capacity and advanced process technologies
enable us to provide our customers with volume production and flexible and quick-to-market manufacturing services. All of our fabs operate 24 hours per day, seven days per week. Substantially all maintenance at each of the fabs is performed
concurrently with production.

As a step in our continuing expansion of our manufacturing complex in the Tainan Science Park
in southern Taiwan, we completed the construction of our second 300mm fab in Taiwan in May 2009. However, we have not finalized the expansion plan yet due to the potential impact of the global economic recession on industry demand. We will closely
monitor industry demand and adjust our expansion schedule accordingly. We expect to move the equipment into this fab in September 2010. Total investment for this fab is expected to be US$5 billion, with a maximum designed monthly production capacity
of approximately 50,000 wafers.

The following table sets forth operational data of each of our manufacturing facilities as of
December 31, 2009.



|                                  |  |                        |  |                       |  |                       |  |                       |  |                        |  |                        |  |                        |  |                        |  |                        |  |                       
|--------------------------------- |  | ---------------------- |  | --------------------- |  | --------------------- |  | --------------------- |  | ---------------------- |  | ---------------------- |  | ---------------------- |  | ---------------------- |  | ---------------------- |  | ----------------------
|                                  |  | Fab 6A                 |  | Fab8A                 |  | Fab8C                 |  | Fab8D                 |  | Fab8E                  |  | Fab8F                  |  | Fab8S                  |  | Fab12A                 |  | Fab12i                 |  | UMCJ                  
|Commencement of volume production |  | 1989                   |  | 1995                  |  | 1998                  |  | 2000                  |  | FABII1998
FAB2A
2000   |  | 2000                   |  | 2000                   |  | 2002                   |  | 2004                   |  | 1996                  
|                                  |  |                        |  |                       |  |                       |  |                       |  |                       
|Estimated full capacity(1)(2)     |  | 49,300wafers per
month |  | 68,000wafers permonth |  | 33,000wafers permonth |  | 22,500wafers permonth |  | 34,000wafers per
month |  | 32,000wafers per
month |  | 25,000wafers per
month |  | 30,000wafers per
month |  | 31,000wafers per
month |  | 20,000wafers per
month
|Wafer size                        |  | 6-inch(150mm)          |  | 8-inch(200mm)         |  | 8-inch(200mm)         |  | 8-inch(200mm)         |  | 8-inch(200mm)          |  | 8-inch(200mm)          |  | 8-inch(200mm)          |  | 12-inch(300mm)         |  | 12-inch(300mm)         |  | 8-inch(200mm)         



|(1) | Measured in original wafer size.
|--- | --------------------------------

|(2) | The capacity of a fab is determined based on the capacity ratings given by manufacturers of the equipment used in the fab, adjusted for, among other
factors, actual output during uninterrupted trial runs, expected down time due to set up for production runs and maintenance and expected product mix.
|--- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

The following table sets forth the size and primary use of our facilities and whether such facilities, including land and buildings, are
owned or leased. Our land in the Hsinchu and Tainan Science Parks is leased from the ROC government.



|                                                                              |  |                      |  |                         |  |                                   |  |                           
|----------------------------------------------------------------------------- |  | -------------------- |  | ----------------------- |  | --------------------------------- |  | --------------------------
|Location                                                                      |  | Size
(Land/Building) |  | Primary Use             |  | Land
(Owned or Leased)            |  | Building
(Owned or
Leased)
|                                                                              |  | (in square meters)   |  |                         |  |                                   |  |                           
|Fab 6A, 10 Innovation 1st Rd.,
Hsinchu Science Park, Hsinchu,
Taiwan 300, ROC |  | 27,898/34,609        |  | 6-inch wafer production |  | Leased
(expires in December 2026) |  | Owned                     
|                                                                              |  |                      |  |                        
|Fab 8A, 3 Li-Hsin 2nd Rd.,
Hsinchu Science Park, Hsinchu,
Taiwan 300, ROC.    |  | 43,468/83,699        |  | 8-inch wafer production |  | Leased (expires in March 2014)    |  | Owned                     
|                                                                              |  |                      |  |                        
|Fab 8C, 6 Li-Hsin 3rd Rd.,
Hsinchu Science Park, Hsinchu,
Taiwan 300, ROC     |  | 24,678/71,427        |  | 8-inch wafer production |  | Leased (expires in March 2016)    |  | Owned                     



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|                                                                                        |  |                      |  |                             |  |                                              |  |                           
|--------------------------------------------------------------------------------------- |  | -------------------- |  | --------------------------- |  | -------------------------------------------- |  | --------------------------
|Location                                                                                |  | Size
(Land/Building) |  | Primary Use                 |  | Land
(Owned or Leased)                       |  | Building
(Owned or
Leased)
|                                                                                        |  | (in square meters)   |  |                             |  |                                              |  |                           
|Fab 8D, 8 Li-Hsin 3rd Rd.,
Hsinchu Science Park, Hsinchu,
Taiwan 300, ROC               |  | 8,036/29,181         |  | 8-inch wafer production     |  | Leased (expires in March 2016)               |  | Owned                     
|                                                                                        |  |                      |  |                            
|Fab 8E, 17 Li-Hsin Rd., Hsinchu
Science Park, Hsinchu, Taiwan
300, ROC                  |  | 35,000/76,315        |  | 8-inch wafer production     |  | Leased (expires in February
2016)            |  | Owned                     
|                                                                                        |  |                      |  |                            
|Fab 8F, 3 Li-Hsin 6th Rd.,
Hsinchu Science Park, Hsinchu,
Taiwan 300, ROC.              |  | 24,180/65,736        |  | 8-inch wafer production     |  | Leased (expires in February
2018)            |  | Owned                     
|                                                                                        |  |                      |  |                            
|Fab 8S, 16 Creation 1st Rd.,
Hsinchu Science Park, Hsinchu,
Taiwan 300, ROC.            |  | 20,404/65,614        |  | 8-inch wafer production     |  | Leased (expires in December
2023)            |  | Owned                     
|                                                                                        |  |                      |  |                            
|Fab 12A, 18 Nan-Ke 2nd Rd.,
Tainan Science Park, Sinshih,
Tainan, Taiwan 741, ROC.      |  | 113,661/177,049      |  | 12-inch wafer production    |  | Leased (expires in December
2020)            |  | Owned                     
|                                                                                        |  |                      |  |                            
|Fab 12i, 3 Pasir Ris Drive 12
Singapore 519528                                          |  | 85,737/142,169       |  | 12-inch wafer production    |  | Leased (expires in March 2031)               |  | Owned                     
|                                                                                        |  |                      |  |                            
|UMCJ, 1580, Yamamoto,
Tateyama-City, Chiba, Japan                                       |  | 387,550/61,111       |  | 8-inch wafer production     |  | 83% owned, 17% leased (expires
in June 2049) |  | 96% Owned, 4%
Leased      
|                                                                                        |  |                      |  |                            
|United Tower, 3 Li-Hsin 2nd Rd.,
Hsinchu Science Park, Hsinchu,
Taiwan 300, ROC.        |  | 8,818/85,224         |  | Administration office       |  | Leased (expires in March 2014)               |  | Owned                     
|                                                                                        |  |                      |  |                            
|Tunhwa South Rd. Office, 3F, 76,
Sec. 2, Tunhwa S. Rd., Taipei,
Taiwan 106, ROC         |  | 166/2,575            |  | Administration office       |  | Owned                                        |  | Owned                     
|                                                                                        |  |                      |  |                            
|Testing Building, 1, Chin-Shan, St.
7, Hsinchu, Taiwan 300, ROC.                        |  | 10,762/41,318        |  | Leased to several companies |  | Owned                                        |  | Owned                     
|                                                                                        |  |                      |  |                            
|R&D Building, 18 Nan-Ke 2nd
Rd., Tainan Science Park, Sinshih,
Tainan, Taiwan 741, ROC. |  | 42,000/47,501        |  | Research and development    |  | Leased (expires in December
2023)            |  | Owned                     

Process Technology

Process technology is a set of specifications and parameters that we implement for manufacturing the critical dimensions of the patterned
features of the circuitry of semiconductors. Our process technologies are currently among the most advanced in the foundry industry. These advanced technologies have enabled us to provide flexible production schedules to meet our customers
particular needs.

The continued enhancement of our process technologies has enabled us to manufacture semiconductor devices
with smaller geometries, allowing us to produce more dice on a given wafer. We pioneered the production of semiconductor products with 0.25 and 0.18 micron process technology in 1997 and 1999, respectively, and used copper interconnect metallurgic
to allow better reliability and higher conductibility than traditional aluminum interconnects. We began volume production using 0.13-micron process technology in 2002. Our extensive experience in the 0.13-micron process technology has helped smooth
our transition to 90-nanometer pilot production. Our 90-nanometer process marks further advance in our technology achievements, incorporating up to nine copper metal layers, triple gate oxide and other advanced features and using chrom-less
phase-shift masks. This technology has been in volume production since the second quarter of 2004 after passing several product certifications. In 2005, our research and development teams continued to work closely with the manufacturing staff to
finalize our 90-nanometer technology portfolio. These collaborative efforts, performed in our best-in-class 300mm facilities, contributed to the improvement of high density 6T-SRAM yield to the maturity level of more than 90%. Our accomplishments
led to multiple design awards followed by first silicon success, including a PC graphic IC and the worlds first 90-nanometer Wireless Local Area Network (WLAN) RF chip featuring a unique and specially developed inductor scheme. In addition, we
were able to develop, within 6 months, several customized 90-nanometer processes tailored to our customers device specifications, and demonstrated product success by delivering record high yield for the first product lots. Our first
fully-functional 65-nanometer wireless digital baseband customer IC was produced in July of 2005, after only a year since this research and development project began at this facility.



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##### Table of Contents

Since the third quarter of 2006, we have begun the mass production of a next-generation
65-nanometer FPGA product, which features a 65% logic capacity increase over previous generation of FPGAs with triple gate oxide and 11 copper metal layers. Our 65-nanometer development team is not only independently developing our technologies
in-house but is also bringing up customized process technologies to match customer specific needs. Furthermore, our 45/40-nanometer process technologies, which are jointly developed by us and our strategic partners has been available to our
customers since early 2009, significantly increasing the competitive advantages of our customers by providing better device performance in a smaller die size.

The table below sets forth our actual process technology range, categorized by line widths, or the minimum physical dimensions of the
transistor gate of integrated circuits in production by each fab, in 2009, and the estimated annual full capacity of each fab, actual total annual output and capacity utilization rates in 2007, 2008 and 2009:



|                             |  |                                  |                                                                |                                                                    |  |                         |   |  |       |   |  |       |  
|---------------------------- |  | -------------------------------- | -------------------------------------------------------------- | ------------------------------------------------------------------ |  | ----------------------- | - |  | ----- | - |  | ----- | -
|                             |  | Year 
ofCommencementof Operation |                                                                | Year EndedDecember 31,2009Range 
ofProcessTechnologies(in
microns) |  | Year Ended December 31, |  
|                             |  |                                  | 2007                                                           |                                                                    |  | 2008                    |   |  | 2009  |  
|                             |  |                                  | (in thousands of 8-inch wafer
equivalents, except percentages) |                                                                   
|Fab                          |  |                                  |                                                                |                                                                    |  |                         |   |  |       |   |  |       |  
|Fab 6A                       |  | 1989                             |                                                                | 0.5                                                                |  | 328                     |   |  | 328   |   |  | 328   |  
|Fab 8A                       |  | 1995                             |                                                                | 0.5 to 0.25                                                        |  | 816                     |   |  | 816   |   |  | 816   |  
|Fab 8C                       |  | 1998                             |                                                                | 0.35 to 0.13                                                       |  | 400                     |   |  | 400   |   |  | 402   |  
|Fab 8D                       |  | 2000                             |                                                                | 0.18 to 0.09                                                       |  | 260                     |   |  | 260   |   |  | 270   |  
|Fab 8E                       |  | 1998                             |                                                                | 0.5 to 0.15                                                        |  | 408                     |   |  | 408   |   |  | 408   |  
|Fab 8F                       |  | 2000                             |                                                                | 0.25 to 0.13                                                       |  | 372                     |   |  | 374   |   |  | 381   |  
|Fab 8S                       |  | 2000                             |                                                                | 0.25 to 0.13                                                       |  | 276                     |   |  | 294   |   |  | 300   |  
|Fab 12A                      |  | 2002                             |                                                                | 0.18 to 0.028                                                      |  | 847                     |   |  | 884   |   |  | 888   |  
|Fab 12i                      |  | 2004                             |                                                                | 0.13 to 0.065                                                      |  | 601                     |   |  | 743   |   |  | 815   |  
|UMCJ                         |  | 1996                             |                                                                | 0.35 to 0.15                                                       |  | 348                     |   |  | 240   |   |  | 240   |  
|Total estimated capacity     |  |                                 |                                                                |                                                                   |  | 4,656                   |   |  | 4,747 |   |  | 4,848 |  
|Total output (actual)        |  |                                 |                                                                |                                                                   |  | 3,813                   |   |  | 3,355 |   |  | 3,362 |  
|Average capacity utilization |  |                                 |                                                                |                                                                   |  | 81.9                    | % |  | 70.7  | % |  | 69.4  | %

The table
below sets forth a breakdown of number and percentage of wafer output by process technologies in 2007, 2008 and 2009. We began commercial operation of our 0.13-micron, 90-nanometer and 65-nanometer process technologies in the first quarter of 2002,
the second quarter of 2003 and the first quarter of 2006, respectively.



|                        |  |                                                                |  |       |      |  |       |      |       |   |  |       |  |       |  
|----------------------- |  | -------------------------------------------------------------- |  | ----- | ---- |  | ----- | ---- | ----- | - |  | ----- |  | ----- | -
|                        |  | Year Ended December 31,                                        | 
|                        |  | 2007                                                           |  |       | 2008 |  |       | 2009 |      
|                        |  | (in thousands of 8-inch wafer
equivalents, except percentages) | 
|                        |  |                                                                |  |       |      | 
|Technology              |  |                                                                |  |       |      |  |       |      |       |   |  |       |  |       |  
|                        |  |                                                                |  |       |      | 
|65 nanometers and under |  | 34                                                             |  | 0.9   | %    |  | 147   |      | 4.3   | % |  | 270   |  | 8.0   | %
|90 nanometers           |  | 492                                                            |  | 12.9  |      |  | 701   |      | 21.0  |   |  | 605   |  | 18.0  |  
|0.13 micron             |  | 595                                                            |  | 15.6  |      |  | 555   |      | 16.5  |   |  | 602   |  | 17.9  |  
|0.15 micron             |  | 354                                                            |  | 9.3   |      |  | 258   |      | 7.7   |   |  | 269   |  | 8.0   |  
|0.18 micron             |  | 784                                                            |  | 20.5  |      |  | 587   |      | 17.5  |   |  | 587   |  | 17.4  |  
|0.25 micron             |  | 206                                                            |  | 5.4   |      |  | 110   |      | 3.3   |   |  | 76    |  | 2.3   |  
|0.35 micron             |  | 971                                                            |  | 25.5  |      |  | 728   |      | 21.7  |   |  | 655   |  | 19.5  |  
|0.50 micron or higher   |  | 377                                                            |  | 9.9   |      |  | 269   |      | 8.0   |   |  | 298   |  | 8.9   |  
|                        |  |                                                                |  |       |      |  |       |      |       |   |  |       |  |       |  
|                        |  |                                                                |  |       |      | 
|Total                   |  | 3,813                                                          |  | 100.0 | %    |  | 3,355 |      | 100.0 | % |  | 3,362 |  | 100.0 | %
|                        |  |                                                                |  |       |      |  |       |      |       |   |  |       |  |       |  



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Capacity and Utilization

The fabs in Taiwan that we own directly are named Fab 6A, Fab 8A, Fab 8C, Fab 8D, Fab 8E, Fab 8F and Fab 8S, all of which are located in
the Hsinchu Science Park in Taiwan, and Fab 12A, which is located in the Tainan Science Park in Taiwan. The fab in Singapore is named Fab 12i.

Our average capacity utilization rate was 81.9% in 2007, 70.7% in 2008 and 69.4% in 2009.

Equipment

Considering
the performance and productivity of our manufacturing capability highly rely on the quality of our capital equipment, we generally purchase equipment that cannot only meet the demand of our existing process technology, but also has the capability to
be upgraded to match our future needs. The principal equipment we use to manufacture semiconductor devices are scanners/steppers, cleaners and track equipment, inspection equipment, etchers, furnaces, wet stations, strippers, implanters, sputters,
CVD equipment, probers, testers and so on. We own all of the production equipment except for a few demonstration tools.

Our
policy is to purchase high-quality equipment that demonstrates stable performance from vendors with dominate market share to ensure our continued competitiveness in the semiconductor field.

Some of the equipment is available from a limited number of qualified vendors and/or is manufactured in relatively limited quantities,
and some equipment has only recently been developed. We believe that our relationships with equipment suppliers are strong enough that we can leverage our position as a major purchaser to purchase equipment on better terms, including shorter lead
time, than the terms received by several other foundries.

Although we face the challenge of procuring the right equipment in
sufficient quantity necessary for ramp-up or expansion of our fabrication facilities under constraint of short lead times, we have not in the past experienced any material problems in procuring the latest generation equipment on a timely basis even
in periods of unpredictably high market demand. We manage the risks in the procurement process through timely internal communications among different divisions, efficient market information collection, early reservation of appropriate delivery slots
and constant communications with our suppliers as well as by utilizing our good relationships with the vendors.

Raw Materials

Our manufacturing processes use many raw materials, primarily silicon wafers, chemicals, gases and various types of
precious sputtering targets. These raw materials are generally available from several suppliers. Our policy with respect to raw material purchases, similar to that for equipment purchases, is to select only a small number of qualified vendors who
have demonstrated quality and reliability on delivery time of the raw materials. We generally do not have any long-term supply contracts with our vendors.

Our general inventory policy is to maintain sufficient stock of each principal raw material for production and rolling forecasts of
near-term requirements received from customers. In addition, we have agreements with several key material suppliers under which they hold similar levels of inventory in their warehouses for our use. However, we are not under any obligation to
purchase raw material inventory that is held by our vendors for our benefit until we actually order it. We typically work with our vendors to plan our raw material requirements on a quarterly basis, with indicative pricing generally set on a
quarterly basis. The actual purchase price is generally determined based on the prevailing market conditions. In the past, prices of our principal raw materials have not been volatile to a significant degree. Although we have not experienced any
shortage of raw materials that had a material effect on our operations, and supplies of raw materials we use currently are adequate, shortages could occur in various critical materials due to interruption of supply or an increase in industry demand.

The most important raw material used in our production processes is silicon wafer, which is the basic raw material from which
integrated circuits are made. The principal makers for our wafers are Shin-Etsu, Siltronic AG, MEMC Corporation and Sumco Group. We have in the past obtained and believe that we will continue to be able to obtain a sufficient supply of silicon
wafers. We believe that we have close working relationships with our wafer suppliers. Based on such long-term relationships, we believe that these major suppliers will use their best efforts to accommodate our demand.



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We use a large amount of water in our manufacturing process. We obtain water supplies from
government-owned entities and recycle approximately 85% of the water that we use during the manufacturing process. We also use substantial amounts of dual loop electricity supplied by Taiwan Power Company in the manufacturing process. We maintain
back-up generators that are capable of providing adequate amounts of electricity to maintain the required air pressure in our clean rooms in case of power interruptions. We believe our back-up devices are adequate in preventing business
interruptions caused by power outages and emergency situations.

Quality Management

We believe that our advanced process technologies and reputation for high quality and reliable services and products have been important
factors in attracting and retaining leading international and domestic semiconductor companies as customers.

We structure our
quality management system in accordance with the latest international quality standards and our customers strict quality and reliability requirements. Our quality management system incorporates comprehensive quality control programs into the
entire business flow of foundry operation including, among others, new process development management, production release control, incoming raw material inspection, statistical process control and methodology development, process change management,
technical documentation control, product final inspection, metrology tool calibration and measurement system analysis, quality audit program, nonconformity management, customer complaint disposition, eight-discipline problem solving and customer
satisfaction monitoring.

We set a high quality goal to ensure consistent high yielding and reliable product performance. Our
quality program is continually enhanced through top-down annual Business Policy Management and bottom-up Total Quality Management activities. In addition, our efforts to observe best practices among fabs in the foundry industry have also contributed
to the improvement of our overall quality management system.

Many of our customers perform physical production site
qualification process in the early development phase and routine quality conformance audits in the volume production phase. These audits include both quality system review and physical fabrication area inspection for verification of conformity with
the international quality standard and customers quality requirement. Our quality management system and quality control programs have been qualified and routinely audited by numerous customers who are recognized as world-class semiconductor
companies with best-in-class quality standards.

Our Quality Assurance Division and Reliability Technology and Assurance
Division collaborate to provide quality and reliability performance to customers. With our wafer processing quality and reliability conformance monitor program, we monitor the product quality and reliability at various stages of the entire
manufacturing process before shipment to customers.

All our fabs are certified in compliance with ISO/TS 16949 and QC080000
IECQ HSPM standards. ISO/TS 16949 sets the criteria for developing a fundamental quality management system emphasizing on customer satisfaction in quality management, continual improvement, defect prevention and variation and waste reduction.
QC080000 IECQ HSPM sets the criteria for developing a process management system for hazardous substances and focuses on developing environmentally friendly manufacturing processes. We are committed to continuously improve our quality management
system and to deliver high quality product to our customers.

Services and Products

We primarily engage in wafer fabrication for foundry customers. To optimize fabrication services for our customers, we work closely with
them as they finalize circuit design and contract for the preparation of masks to be used in the manufacturing process. We also offer our customers turnkey services by providing subcontracted assembly and test services. We believe that this ability
to deliver a variety of foundry services in addition to wafer fabrication enables us to accommodate the needs of a full array of integrated device manufacturers, system companies and fabless design customers with different in-house capabilities.



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Wafer manufacturing requires many distinct and intricate steps. Each step in the
manufacturing process must be completed with precision in order for finished semiconductor devices to work as intended. The processes require taking raw wafers and turning them into finished semiconductor devices generally through five steps:
circuit design, mask tooling, wafer fabrication, assembly and test. The services we offer to our customers in each of these five steps are described below.

Circuit Design. At this initial design stage, our engineers generally work with our customers to ensure that their designs
can be successfully and cost-effectively manufactured in our facilities. We have assisted an increasing number of our customers in the design process by providing them with access to our partners electronic design analysis tools, intellectual
property and design services as well as by providing them with custom embedded memory macro-cells. In our Silicon Shuttle program, we offer customers and intellectual property providers early access to actual silicon samples with their desired
intellectual property and content in order to enable early and rapid use of our advanced technologies. The Silicon Shuttle program is a multi-chip test wafer program that allows silicon verification of intellectual property and design elements. In
the Silicon Shuttle program, several different vendors can test their intellectual property using a single mask set, greatly reducing the cost of silicon verification for us and the participating vendors. The high cost of masks for advanced
processes makes this program attractive to intellectual property vendors. ARM Limited, Faraday Technology Corp., or Faraday Technology, MIPS Technologies International, Virage Logic Corporation and Synopsys Inc. have utilized our Silicon Shuttle
program. In our Alliance Program, we coordinate with leading suppliers of intellectual property, design and ASIC services to ensure their offerings are available to our customers in an integrated, easy to use manner which matches customers
need to our technologies. With a view to lowering customer design barriers, we expanded our design support functions from conventional design support to adding intellectual property development to complement third-party intellectual properties and
to provide customers with the widest range of silicon-verified choices. Our offerings range from design libraries to basic analog mixed-mode intellectual properties which, together, have helped shorten our customers design cycle time.

Mask Tooling. Our engineers generally assist our customers to design and/or obtain masks that are optimized for
our advanced process technologies and equipment. Actual mask production is usually provided by independent third parties specializing in mask tooling.

Wafer Fabrication. As described above, our manufacturing service provides all aspects of the wafer fabrication process by
utilizing a full range of advanced process technologies. During the wafer fabrication process, we perform procedures in which a photosensitive material is deposited on the wafer and exposed to light through the mask to form transistors and other
circuit elements comprising a semiconductor. The unwanted material is then etched away, leaving only the desired circuit pattern on the wafer. As part of our wafer fabrication services, we also offer wafer probing services, which test, or probe,
individual die on the processed wafers and identify dice that fail to meet required standards. We prefer to conduct wafer probing internally to obtain speedier and more accurate data on manufacturing yield rates.

Assembly and Testing. We offer our customers turnkey services by providing the option to purchase finished semiconductor
products that have been assembled and tested. We outsource assembly and test services to leading assembly and test service providers, including Siliconware Precision Industries Co., Ltd., or Siliconware, and Advanced Semiconductor Engineering Inc.
in Taiwan. After final testing, the semiconductors are shipped to our customers designated locations.

Customers and Markets

Our primary customers, in terms of our sales revenues, include premier integrated device manufacturers, such as Texas
Instruments, Infineon, Freescale, STMicroelectronics, and Kawasaki, and leading fabless design companies, such as Xilinx, Broadcom, MediaTek, Realtek, Novatek, and Marvell. Although we are not dependent on any single customer, a significant portion
of our net operating revenues have been generated from sales to a few customers. Our top ten customers accounted for approximately 65.3% of our net operating revenues in 2009. Set forth below is a geographic breakdown of our operating revenues in
2007, 2008 and 2009.



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|                        |  |                         |   |  |       |   |  |       |  
|----------------------- |  | ----------------------- | - |  | ----- | - |  | ----- | -
|                        |  | Year Ended December 31, |  
|Region                  |  | 2007                    |   |  | 2008  |   |  | 2009  |  
|Taiwan                  |  | 38.0                    | % |  | 29.8  | % |  | 38.2  | %
|Asia (excluding Taiwan) |  | 6.9                     |   |  | 5.1   |   |  | 10.6  |  
|North America           |  | 46.9                    |   |  | 55.4  |   |  | 50.2  |  
|Europe                  |  | 8.2                     |   |  | 9.7   |   |  | 1.0   |  
|                        |  |                         |   |  |       |   |  |       |  
|Total                   |  | 100.0                   | % |  | 100.0 | % |  | 100.0 | %
|                        |  |                         |   |  |       |   |  |       |  

We believe our success in attracting these end customers is a direct result of our commitment to high
quality service and our intense focus on customer needs and performance. Because we are an independent semiconductor foundry, most of our operating revenue is generated by our sales of wafers. For 2009, net wafer sales represents 96.8% of our net
operating revenue, and excludes revenue from testing, mask and other services. The following table presents the percentages of our net wafer sales by types of customers during the last three years.



|                                |  |                         |   |  |       |   |  |       |  
|------------------------------- |  | ----------------------- | - |  | ----- | - |  | ----- | -
|                                |  | Year Ended December 31, |  
|Customer Type                   |  | 2007                    |   |  | 2008  |   |  | 2009  |  
|Fabless design companies        |  | 73.7                    | % |  | 73.2  | % |  | 79.2  | %
|Integrated device manufacturers |  | 26.1                    |   |  | 26.8  |   |  | 20.8  |  
|System companies                |  | 0.2                     |   |  | 0.0   |   |  | 0.0   |  
|                                |  |                         |   |  |       |   |  |       |  
|Total                           |  | 100.0                   | % |  | 100.0 | % |  | 100.0 | %
|                                |  |                         |   |  |       |   |  |       |  

We focus on providing a high level of customer service in order to attract customers and maintain their
ongoing loyalty. Our culture emphasizes responsiveness to customer needs with a focus on flexibility, speed and accuracy throughout our manufacturing and delivery processes. Our customer-oriented approach is especially evident in two types of
services: customer design development services and manufacturing services. We believe that our large production capacity and advanced process technology enable us to provide better customer service than many other foundries through shorter
turn-around time, greater manufacturing flexibility and higher manufacturing yields.

We work closely with our customers
throughout the design development and prototyping processes. Our design support team closely interacts with customers and intellectual property vendors to facilitate the design process and to identify their specific requirements for intellectual
property offerings. We are responsive to our customers requirements in terms of overall turn-around time and production time-to-market by, for example, helping our customers streamline their IP offering processes and delivering prototypes in a
timely and easy-to-use fashion. We also maintain flexibility and efficiency in our technical capability and respond quickly to our customers design changes.

For IP offerings, we work with several leading IP vendors from digital, memory and analog fields in the semiconductor industry, such as
Faraday Technology, ARM Limited, Virage Logic Corporation, Rambus Inc., Silicon Image Inc. and Synopsys Inc., to deliver quality IP blocks that have been silicon validated using our advanced processes. Our alliance programs with major electronic
design automation vendors, such as Cadence, Magma, Mentor and Synopsys Inc., provide our customers with digital/analog reference design procedures and easy-to-use design solutions. By continuously enhancing our IP offerings, reference design
procedures and design services through collaboration with major vendors, we aim to provide complete, accurate and user-friendly design solutions to our customers.

As a design moves into manufacturing production, we continue to provide ongoing customer support through all phases of the manufacturing
process. The local account manager works with our customer service representative to ensure the quality of our services, drawing upon our marketing and customer engineering support teams as required.



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We offer an online service, MyUMC, which gives our customers easy access to our
foundry services by providing a total online supply chain solution. MyUMC offers 24-hour access to detailed account information such as manufacturing, engineering and design support documents through each customers own customized start page.
The features that are available to customers through MyUMC include (i) viewing the status of orders from the start of production to the final shipping stages; (ii) designing layouts to shorten customers tape out time;
(iii) collecting customer engineering requests; (iv) gathering and downloading documents for design purposes; (v) and accessing online in real-time the same manufacturing data used by our fab engineers. In addition, we have a
system-to-system connecting service to provide direct data exchange between our system and our customers systems. In order to continually improve our information security management, our information technology division received ISO/IEC
27001:2005 certification in March 2008.

We price our products on a per die or per wafer basis, taking into account the
complexity of the technology, the prevailing market conditions, the order size, the cycle time, the strength and history of our relationship with the customer and our capacity utilization. Our main sales office is located in Taiwan, which is in
charge of our sales activities in Asia. United Microelectronics (Europe) BV, our wholly-owned subsidiary based in Amsterdam, assists our sales to customers in Europe. Our sales in North America are made through UMC Group (USA), our subsidiary
located in Sunnyvale, California.

We typically designate a portion of our wafer manufacturing capacity to some of our
customers primarily under two types of agreements: reciprocal commitment agreements and deposit agreements. Under a reciprocal commitment agreement, the customer agrees to pay for, and we agree to supply, a specified capacity at a specified time in
the future. Under a deposit agreement, the customer makes in advance a cash deposit for an option on a specified capacity at our fabs for a stated period of time. Option deposits are credited to wafer purchase prices as shipments are made. If this
customer does not use the specified capacity, it will forfeit the deposit but, in certain circumstances and with our permission, the customer may arrange for a substitute customer to utilize such capacity. In some cases, we also make available
capacity to customers under other types of agreements, such as capacity commitment arrangements with technology partners.

We
advertise in trade journals, organize technology seminars, hold a variety of regional and international sales conferences and attend a number of industry trade fairs to promote our products and services. We also publish a corporate newsletter for
our customers.

Competition

The worldwide semiconductor foundry industry is highly competitive, particularly during periods of overcapacity and inventory correction.
We compete internationally and domestically with dedicated foundry service providers as well as with integrated device manufacturers and final product manufacturers which have in-house manufacturing capacity or foundry operations. Some of our
competitors have substantially greater production, financial, research and development and marketing resources than we have. As a result, these companies may be able to compete more aggressively over a longer period of time than we can. In addition,
several new dedicated foundries have commenced operations and compete directly with us. Any significant increase in competition may erode our profit margins and weaken our earnings.

We believe that our primary competitors in the foundry services market are Taiwan Semiconductor Manufacturing Company Limited,
Semiconductor Manufacturing International (Shanghai) Corporation and Globalfoundries Inc., as well as the foundry operation services of some integrated device manufacturers such as IBM and Toshiba. Other competitors such as Samsung, DongbuAnam
Semiconductor, Grace Semiconductor Manufacturing Corp., X-FAB Semiconductors Foundries AG and Silterra Malaysia Sdn. Bhd. have initiated efforts to develop substantial new foundry capacity, although much of such capacity involves less cost-effective
production than the 12-inch fabs for which we possess technical know-how. New entrants in the foundry business are likely to initiate a trend of competitive pricing and create potential overcapacity in legacy technology. The principal elements of
competition in the semiconductor foundry industry include technical competence, production speed and cycle time, time-to-market, research and development quality, available capacity, manufacturing yields, customer service and price. We believe that
we compete favorably with the new competitors on each of these elements, particularly our technical competence and research and development capabilities.



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Intellectual Property

Our success depends in part on our ability to obtain patents, licenses and other intellectual property rights covering our production
processes and activities. To that end, we have acquired certain patents and patent licenses and intend to continue to seek patents on our production processes. As of December 31, 2009, we held 2,117 U.S. patents and 2,697 patents issued outside
of the United States.

Our ability to compete also depends on our ability to operate without infringing on the proprietary
rights of others. The semiconductor industry is generally characterized by frequent litigation regarding patent and other intellectual property rights. As is the case with many companies in the semiconductor industry, we have from time to time
received communications from third parties asserting patents that cover certain of our technologies and alleging infringement of certain intellectual property rights of others. We expect that we will receive similar communications in the future.
Irrespective of the validity or the successful assertion of such claims, we could incur significant costs and devote significant management resources to the defense of these claims, which could seriously harm our company. See Item 3. Key
InformationD. Risk FactorsOur inability to obtain, preserve and defend intellectual property rights could harm our competitive position.

In order to minimize our risks from claims based on our manufacture of semiconductor devices or end-use products whose designs infringe
on others intellectual property rights, we in general accept orders only from companies that we believe enjoy satisfactory reputation and for products that are not identified as risky for potential infringement claims. Furthermore, we obtain
indemnification rights from customers. We also generally obtain indemnification rights from equipment vendors to hold us harmless from any losses resulting from any suit or proceedings brought against our company involving allegation of infringement
of intellectual property rights on account of our use of the equipment supplied by them.

We have entered into various patent
cross-licenses with major technology companies, including a number of leading international semiconductor companies such as IBM, Renesas, Freescale and LSI. We may choose to renew our present licenses or to obtain additional technology licenses in
the future.

Research and Development

We spent NT$9,631 million, NT$8,274 million and NT$8,044 million (US$252 million) in 2007, 2008 and 2009, respectively, on research and
development, which represented 8.5%, 8.6% and 8.8% respectively, of our net operating revenues for these periods. Our research and development efforts are mainly focused on delivering SoC foundry solutions that consist of the worlds leading
process technologies, customer support services and manufacturing techniques. These resources provide our foundry customers with improved opportunities to develop SoC products that supply the global market. Our commitment to research and development
can be illustrated by our 2009 research and development expenditures, which reached approximately 8.8% of net operating revenues. In June 2007, we completed the construction of a research and development center for nanometer technologies in the
Tainan Science Park. The research and development center allows for seamless application of advanced process technology in the research and development phase to the manufacturing phase, such as our 45/40-nanometer process technology that has been
recently used to fabricate SRAM chips.

As of March 31, 2010, we employed 953 professionals in our research and
development activities. In addition, other management and operational personnel are also involved in research and development activities but are not separately identified as research and development professionals.

Our Investments

Depending on the market conditions, we intend to gradually reduce our investments through secondary equity offerings, exchangeable bond
offerings and other measures available to our company.

We issued exchangeable bonds of US$235 million due 2007 in May 2002,
and exchangeable bonds of US$206 million due 2008 in July 2003. The first bonds were exchangeable, at the option of the bondholders, into common shares or American depositary shares of AU Optronics, and the second bonds were exchangeable into common
shares of AU Optronics. As of December 31, 2004, all bondholders of the Exchangeable Bonds due 2008 had exercised their rights to exchange their bonds into common shares of AU Optronics. Prior to the maturity date of May 10, 2007, 99.9% of
the bondholders of the Exchangeable Bonds due 2007 had exercised their rights to exchange their bonds into common shares or American depositary shares of AU Optronics. We redeemed all of the remaining bonds outstanding in the principal amount of
US$0.3 million. We sold 78 million common shares of AU Optronics in 2007. As of December 31, 2007, we did not have any common shares of AU Optronics.



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We issued two tranches of zero coupon exchangeable bonds due 2014 in December 2009. The two
exchangeable bond offerings consist of $127.2 million bonds exchangeable into common shares of Unimicron Technology Corporation, or Unimicron, and $80 million bonds exchangeable into common shares of Novatek Microelectronics Corp., Ltd., or Novatek.
As of December 31, 2009, no bonds had been exchanged into common shares of Unimicron and Novatek, respectively.

In 2007,
we sold 9 million common shares of MediaTek for NT$5,100 million. In 2008, we sold 5 million common shares of MediaTek for NT$1,673 million. In 2009, we sold 2 million common shares of MediaTek for NT$809 million (US$25 million). As
of December 31, 2009, we did not have any common shares of MediaTek.

In addition, we sold 1.95 million common
shares of ITE Tech. Inc., or ITE, for NT$260 million and 10.1 million common shares of Holtek Semiconductor Inc., or Holtek, for NT$720 million in 2007. In 2008, we sold 3.6 million common shares of ITE for NT$137 million and
6.3 million common shares of Holtek for NT$253 million. In 2009, we sold 0.5 million common shares of ITE for NT$35 million (US$1 million). We did not sell any common shares of Holtek in 2009. As of March 31, 2010, we held 15.63% and
16.31% in ITE and Holtek, respectively.

ESH Matters

As a member of the global community and a semiconductor industry leader, we have implemented measures to deal with environmental problems
and mitigate climate change. Our manufacturing operation uses many chemicals, gases and other hazardous substances, and we are subject to various ESH regulations related to the use, storage, discharge, emissions, wastes and disposal of such
chemicals, gases and hazardous substances.

We comply with ESH regulations and target to be a sustainable green foundry. We
have introduced green concepts in every aspect of operation, including green commitment, management, procurement, production, products, recycling, office, education and marketing. We set our environmental protection policy as below:



| |  |  | to be an environmentally friendly enterprise characterized by continual improvement with a goal of pollution-free production;
| | - |  | -----------------------------------------------------------------------------------------------------------------------------



| |  |  | to incorporate our environmental management system into the general organizational management system;
| | - |  | -----------------------------------------------------------------------------------------------------



| |  |  | to take the initiative to reduce waste production and prevent pollution by introducing and developing environmentally friendly technology for design,
production and operation;
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | to conserve energy and recycle resources in order to be a model of environmental protection for the international community;
| | - |  | ----------------------------------------------------------------------------------------------------------------------------



| |  |  | to fulfill corporate social responsibilities by playing an active role in public and community affairs to improve and protect the environment; and
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | to educate employees about environmentally sound ethics and practices.
| | - |  | ----------------------------------------------------------------------

Numerous types of materials are used in semiconductor manufacturing process. The rapid changes in regulations result in significant
operation costs of raw materials in many industries. We aggressively promote cleaner production process with an eye on sustainable operation and development. The RoHS (Restriction of Hazardous Substance) Directive has been in effect since
July 1, 2006, which prohibits electronic products that contain certain levels of hazardous substances, including lead, cadmium, mercury, Chromium(VI) compounds, polybrominated biphenyls and polybrominated diphenyl ethers, from entering European
markets, effectively creating a green trade barrier. As a result, we established a cross-division HSPM (Hazardous Substances Process Management) committee to manage all development and implementation of related work. We completed the final system
audit for QC 080000 ICEQ HSPM qualification, a certification for having a hazardous substance process management system that meets the RoHS Directive, on June 9, 2006 and became the first semiconductor manufacturer worldwide to achieve HSPM
certification for all fabs.



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We have also implemented other extensive ESH management systems. These systems enable our
operations to identify applicable ESH regulations, assist in evaluating compliance status and timely establish loss preventive and control measures. The systems we implemented in all our fabs have been certified as meeting the ISO 14001 and OHSAS
18001 standards. ISO 14001 consists of a set of standards that provide guidance to the management of organizations to achieve an effective environmental management system. Procedures are established at manufacturing locations to ensure that all
accidental spills and discharges are properly addressed. OHSAS 18001 is a recognizable occupational health and safety management system standard, which may be applied to assess and certify our management systems. Our goal in implementing ISO 14001
and OHSAS 18001 systems is to continually improve our ESH management.

Climate Change

We have always paid attention to the issue of climate change and have aggressively implemented comprehensive carbon
management programs for the carbon risk. Our comprehensive carbon management program includes energy-saving and carbon reduction measures with priority on reducing carbon in the manufacturing process. We are ahead of the foundry industry to complete
the replacement of
C2F6with
C3F8of lower global warming potential in 2007. This replacement program helped reduce
CO2emissions by 410,000 metric tons in 2008 and 373,000
metric tons in 2009. Furthermore, our introduction of C4F8in 2008 further decreased the emission of
CO2in our production process. This replacement program
helped reduce CO2emissions by 85,000 metric tons in 2009. We
plan to reduce the emission of perfluorocarbons by 34% from 2010 to 2012 through
C4F8replacement project.

We also believe in the importance of
timely disclosure of carbon information and ensuring data quality. Since 2006, we have participated in the Carbon Disclosure Project formed by global institutional investors and disclosed our annual greenhouse gas emission volume, reduction goals
and results. Moreover, we engage third-party verifiers to ensure the quality of the data. We completed verification on greenhouse gas emission and reduction records from 2000 to 2008 for all of our fabs in Taiwan. The verification on greenhouse gas
emissions for 2009 is in progress and is expected to be completed by May 2010.

In 2009, we completed the first reported
carbon footprint verification in the foundry industry for integrated circuit wafers produced at our facilities. We conducted carbon footprint verification of 200mm wafer production at Fab8A in accordance with international carbon footprint standard
PAS 2050 of British Standards Institution, with the results verified by Det Norske Veritas (DNV), a third-party verifier. Due to the advanced technologies and numerous materials involved in the manufacturing of semiconductor wafers, carbon footprint
calculation is complicated. Since we began our product life cycle assessment in all fabs in 2005, we have been able to complete this verification in the shortest time possible. The result is a significant milestone in our development of green
production. This verification provides complete, scientific and reliable disclosure on the carbon information of products manufactured in our fabs as well as self-review of environmental impact. Moreover, it is a demonstration of our social
responsibility to practice transparent communication with our stakeholders.

Litigation

Hejian, a semiconductor manufacturer in Suzhou, China, was set up in December 2001. Soon after the establishment of Hejian, there were
various rumors that Hejian was set up by us, which we denied immediately because we did not inject any capital into nor did we transfer any technology to Hejian.

In early 2006, the Hsinchu District Prosecutors Office brought criminal charges in the Hsinchu District Court against our former
Chairman, Robert H. C. Tsao and our former Vice Chairman, John Hsuan in connection with alleged breach of fiduciary duties and certain alleged violations of the ROC Commercial Accounting Act. Prior to such charges, both our former Chairman and
former Vice Chairman resigned from their respective positions with our company. The Hsinchu District Court found our former Chairman and former Vice Chairman not guilty in October 2007, and the Prosecutors office filed an appeal with the
Taiwan High Court in November 2007. On December 31, 2008, the Taiwan High Court rejected the prosecutors appeal and sustained the Hsinchu District Courts decision. On January 20, 2009, Taiwan High Prosecutors office filed
an appeal with the Supreme Court. On December 3, 2009, the Supreme Court reversed the decision of, and remanded the case to, the Taiwan High Court for a new trial on the prosecutors appeal. This case is now pending in the Taiwan High
Court.



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The ROC FSC, a regulatory authority that supervises securities, banking, futures, and
insurance activities in Taiwan, also began their investigation into whether there had been any violation of ROC securities laws by us. In April 2005, our former Chairman was fined (1) NT$2.4 million by the ROC FSC for our delay in making public
disclosure timely (within two days) regarding the information relating to Hejian, which had been resolved in the March 4 Resolution, and (2) NT$0.6 million for our failure to disclose the information regarding the assistance we had
provided to Hejian. Our former Chairmans appeal in relation to such fines was overruled in early 2006, and a lawsuit was filed by our former Chairman with the Taipei Administrative High Court to challenge the ROC FSC fines. In December 2007,
the Taipei Administrative High Court revoked the ROC FSCs decision and ruled in favor of our former Chairman. In January 2008, the ROC FSC filed an appeal with the Supreme Administrative Court. On November 5, 2009, the Supreme
Administrative Court denied the ROC FSCs appeal. This case is now closed in favor of our former Chairman.

In connection
with the March 4 Resolution, our company was also fined in the amount of NT$30,000 by the Taiwan Stock Exchange for an alleged delay in making public disclosure. After our former Chairman and former Vice Chairman were indicted by the
prosecutor, our company was found by the ROC MOEA to be in violation of the Act Governing Relations Between Peoples of the Taiwan Area and the Mainland Area and fined in the amount of NT$5 million for our alleged illegal investment in Hejian. Our
appeal to the ROC MOEA in relation to such fines was denied in late 2006. We filed an administrative lawsuit in December 2006 with the Taipei Administrative High Court to challenge the ROC MOEA fine. In July 2007, the Taipei Administrative High
Court revoked the ROC MOEAs decision and ruled in our favor. In August 2007, the ROC MOEA filed an appeal with the Supreme Administrative Court. On December 10, 2009, the Supreme Administrative Court reversed the decision of, and remanded
the case to, the Taipei High Administrative Court for a new trial on our administrative lawsuit. This case is now pending in the Taipei High Administrative Court.

In June 2005, our Singapore Branch as plaintiff issued a Writ of Summons against Tokio Marine & Fire Insurance Company
(Singapore) Pte. Ltd., or Tokio Marine, as defendant under a marine cargo insurance policy for the replacement cost of a 300mm Endura System damaged in transit. We incurred a cost of approximate US$1.24 million to replace the damaged chamber. Our
Singapore Branch filed suit to recover under the Tokio Marine insurance policy on the grounds that the equipment was damaged in shipment as a result of rough handling or conditions. Tokio Marine has denied that the incident was a covered event under
the policy. In April 2008, the trial court entered a judgment in our favor in the amount of US$1.24 million with costs to be taxed in accordance with Singapore law. Before the time for Tokio Marine to appeal passed, Tokio Marine had paid us US$1.24
million plus interest in accordance with the judgment. Tokio Marine filed a notice of appeal to appeal the trial court decision on January 5, 2009. After a hearing on March 26, 2009, the Court of Appeal entered its order in our favor,
dismissed the appeal and ordered Tokio Marine to pay the costs we incurred in this appeal. This case is now closed. Tokio Marine has made full payment for the amounts awarded by the court and is pursuing subrogation claims against China Airlines,
the third-party carrier.

In February 2006, Taiwan Power Company, or TPC, filed a civil litigation case in Taiwan Hsinchu
District Court against us and other Taiwan companies, claiming that (1) we and the other defendants collectively should pay electrical fees of NT$13.3 million with accrued interest to TPC, and (2) we pay electrical line fees of NT$21.2
million to TPC. On March 11, 2009, the Hsinchu District Court denied TPCs claim and ruled in our favor. TPC filed an appeal with the Taiwan High Court on April 9, 2009. This case is now pending in the Taiwan High Court.

In March 2006, the spouse of Mr. C.F. Shih, a workman employed by Yih-Shin Construction Co., Ltd, or Yih-Shin, one of the
subcontractors we engaged for construction of the Fab 12A dormitory, filed a request with the Taiwan Tainan Prosecutors Office for charges against us and other related parties in connection with Mr. Shihs severe injury in connection
with the construction work. The Taiwan Tainan Prosecutors Office denied this request, but Mr. Shih filed a civil claim in the Taiwan Tainan District Court against us, Yih-Shin and other related parties in April 2006. In the civil claim,
Mr. Shih has asked for NT$21.0 million from us, Yih-Shin and other related parties collectively. In addition, Mr. Shihs mother and spouse each requested compensatory damages of NT$0.3 million, and each of Mr. Shihs three
children requested for compensatory damages of NT$0.1 million. On January 15, 2010, the Taiwan Tainan District Court entered its order in our favor. The plaintiff did not file any appeal by the February 10, 2010 deadline, and this case is
now closed in accordance with applicable rules.



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On August 27, 2008, the Hsinchu District Prosecutors Office visited our offices in
relation to an investigation related to our investment in ProMOS Technologies. We fully cooperated with the authorities in this investigation. We also conducted an internal inquiry regarding this investment, and we did not find any evidence of
inappropriate activities that violate any of the applicable regulations. The Hsinchu District Prosecutors Office has decided not to prosecute this case.

Dispute with LSI

Due to the recent merger between LSI and Agere, we exercised our option to terminate Ageres payments under the Alternate Payment
Provisions and Supplemental Licenses, or the APP, effective January 1, 2004 between us and Agere. As a result, the licenses granted to Agere and Lucent Technologies under our patents and the licenses granted to us under the semiconductor
patents owned by Agere, Lucent Technologies and AT&T were terminated. In light of the merger, we believed we could secure more favorable terms than those afforded under the APP and entered negotiations with LSI/Agere toward that goal.

Based on past experience and our patent portfolio, on April 1, 2009, we entered a negotiated solution which resolves all
disputes between us and LSI/Agere without any material adverse effect on our operations or financial performance as a whole. Pursuant to the terms of the settlement, the proceedings were terminated and/or dismissed with prejudice, including each of
the following proceedings:



| |  |  | In April 2008, LSI filed a petition with the US International Trade Commission naming us and eighteen other companies as proposed respondents
(including AMIC Technology, one of our customers). LSIs petition was based on alleged infringement of US Patent Number 5,227,335, claiming certain methods for forming nitrided glue layers for tungsten processing in semiconductor fabrication.
LSIs petition sought an order prohibiting import and/or sale of the accused devices in the US. Under established ITC practice, the ITC initiated an investigation on the petition.
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | On April 18 2008, LSI also filed a complaint in Federal District Court in the Eastern District of Texas, alleging an infringement of the same
patent by the same parties. This complaint sought an injunction or order prohibiting the alleged infringement along with a reasonable royalty, and other damages in a trebled amount on the basis of alleged willfulness. Based on our motion, this court
case was stayed pending the outcome of the ITC matter.
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | On October 31, 2008, we filed a counter-suit against LSI in the Federal District Court in the Northern District of California alleging
infringement of two our patents, US Patent Numbers 5,459,354 and 5,652,689. Our complaint sought an injunction or order prohibiting the alleged infringement along with a reasonable royalty, and other damages, trebled on the basis of alleged
willfulness.
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | On December 24, 2008, LSI filed its response to our complaint, denying infringement and alleging invalidity and unenforceability. In addition, LSI
included counterclaims against us, alleging invalidity and unenforceability of our patents and further alleging infringement of four LSI US Patents, US Patent Numbers 5,149,672; 6,153,543; 5,599,739; and 5,693,561. LSIs counterclaim sought an
order invalidating and/or rendering the our patents unenforceable, together with an injunction or order prohibiting the alleged infringement along with a reasonable royalty, and other damages, trebled on the basis of alleged willfulness. On
January 15, 2009, LSI dismissed that counterclaim without prejudice, and reasserted the same claims in the same court against us and our US subsidiary.
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



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| |  |  | On January 9, 2009, we filed a second complaint in the Federal District Court in the Northern District of California, alleging infringement by LSI
and Agere of our US Patent Number 5,393,701. Our complaint sought an injunction or order prohibiting the alleged infringement along with a reasonable royalty, and other damages, trebled on the basis of alleged willfulness.
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

We entered into a multi-year cross license agreement with LSI, effective from April 1, 2009 through
December 31, 2012, which provides for the cross license of certain semiconductor patents including process and design. We and LSI further agreed not to assert patents against each other prior to December 31, 2012. We also agreed to pay LSI
certain royalty fees under this agreement. See Item 10  Material Contracts.

Risk Management

Risk and safety matters are administered by our Group Risk Management and Environmental Safety Health Division, or the GRM & ESH,
established in 1998. We are pursuing the goal of a highly protected risk status in the semiconductor industry through the implementation of strict engineering safety procedures, regular enforcement of safety codes and standards, and compliance of
detailed industry safety guidelines. Our initiatives include promoting a culture of safety within the organization and equipping each fab with Business Continuity Plan, or BCP, programs and BCP drills to lower the risk of business interruption. We
have also adopted the Triple Star Ranking System of Chartis Insurance, a global leader in risk management and insurance, since 1999. All fabs have been ranked as top-class following Chartiss risk evaluation and risk improvement
recommendations. The ranking system focuses on 20 items, including ten Physical Protection Elements and ten Human Elements. Our latest 12-inch fabs, Fab 12A and 12i, obtained triple-stars in all 20 elements in the very first Triple Star Audit.

We believe due to our proactive efforts in earthquake risk exposure prevention, we had quick and exemplary recovery from two
major earthquakes in Taiwan on September 21, 1999 and December 26, 2006, respectively. Our Hsinchu fabs and Fab 12A in Tainan sustained only minor impact to their operations from the earthquake without interruption to the power system or
water service. Normal operations resumed shortly after the incidents.

Our continuous efforts in risk improvement and
mitigation programs were recognized by the clean room risk identification and mitigation Gold Medal we received in the National Quality Control Circle competition held by the ROC MOEA in 2005. In addition, we were awarded
Outstanding Performance Award in Risk Management in 2006 by Chartis Insurance as a result of our outstanding risk management program.

Insurance

We maintain
industrial all risk insurance for our buildings, facilities, equipment and inventories as well as third party properties, if any. The insurance for fabs and their equipment covers physical damage and business interruption losses up to their
respective policy limits except for exclusions as defined in the policy. We purchase directors and officers liability insurance for our board directors and executive officers, covering the liabilities incurred in relation to his/her/its operation of
business and legally responsible for. We also maintain public liability insurance for losses to third parties arising from our business operations. We believe that our insurance coverage is adequate to cover all major types of losses relevant to the
semiconductor industry practice. However, significant damage to any of our production facilities, whether as a result of fire or other causes, could seriously harm our business.



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C. Organizational Structure

The following list shows our corporate structure as of December 31, 2009:



|                                        |  |                               |  |                                               |  
|--------------------------------------- |  | ----------------------------- |  | --------------------------------------------- | -
|Company                                 |  | Jurisdiction of Incorporation |  | Percentage ofOwnership as ofDecember 31, 2009 |  
|                                        |  |                              
|UMC Group (USA)                         |  | California, USA               |  | 100.00                                        | %
|United Microelectronics (Europe) B.V.   |  | The Netherlands               |  | 100.00                                        | %
|UMC Capital Corp.                       |  | Cayman Islands                |  | 100.00                                        | %
|United Microelectronics Corp. (Samoa)   |  | Samoa                         |  | 100.00                                        | %
|TLC Capital Co., Ltd                    |  | Taiwan, ROC                   |  | 100.00                                        | %
|UMCi Ltd.                               |  | Singapore                     |  | 100.00                                        | %
|UMC New Business Investment Corp.       |  | Taiwan, ROC                   |  | 100.00                                        | %
|Alpha Wisdom Limited                    |  | Cayman Islands                |  | 100.00                                        | %
|Green Earth Limited                     |  | Samoa                         |  | 100.00                                        | %
|Fortune Venture Capital Corp.           |  | Taiwan, ROC                   |  | 99.99                                         | %
|UMCJ                                    |  | Japan                         |  | 94.79                                         | %
|Unitruth Investment Corp.               |  | Taiwan, ROC                   |  | 99.99                                         | %
|UMC Capital (USA)                       |  | California, USA               |  | 100.00                                        | %
|ECP VITA Ltd.                           |  | British Virgin Islands        |  | 100.00                                        | %
|Soaring Capital Corp.                   |  | Samoa                         |  | 100.00                                        | %
|Unitruth Advisor (Shanghai) Co., Ltd.   |  | China                         |  | 100.00                                        | %
|United Lighting Opto-Electronic Inc.    |  | Taiwan, ROC                   |  | 95.54                                         | %
|Everrich Energy Corp.                   |  | Taiwan, ROC                   |  | 93.75                                         | %
|Everrich Energy Investment (HK) Limited |  | China                         |  | 93.75                                         | %
|Yongsheng (ShanDong) Energy Co.         |  | China                         |  | 93.75                                         | %



Note: On June 26, 2009, United Microdisplay Optronics Corp., or UMO, filed for liquidation as a result of a decision of its stockholders
meeting. We ceased accounting for our ownership of UMO under the equity method from June 26, 2009, and UMO was not our consolidated subsidiary as of December 31, 2009.

D. Property, Plants and Equipment

Please refer to B. Business OverviewManufacturing Facilities for a discussion of our property, plants and
equipment.



|ITEM 4A. | UNRESOLVED STAFF COMMENTS
|-------- | -------------------------

Not applicable.



|ITEM 5. | OPERATING AND FINANCIAL REVIEW AND PROSPECTS
|------- | --------------------------------------------

Unless stated otherwise, the discussion and analysis of our financial condition and results of operations in this section apply to our
financial information as prepared in accordance with ROC GAAP. You should read the following discussion of our financial condition and results of operations together with the consolidated financial statements and the notes to such statements
included in this annual report. ROC GAAP varies in certain significant respects from US GAAP. These differences and their effects on our financial statements are described in Note 35 to our audited consolidated financial statements included in this
annual report.

For the convenience of readers, NT dollar amounts used in this section for, and as of, the year ended
December 31, 2009 have been translated into U.S. dollar amounts using US$1.00 = NT31.95, the noon buying rate as certified for customs purposes by the Federal Reserve Bank of New York on December 31, 2009. The U.S. dollar translation
appears in parentheses next to the relevant NT dollar amount.



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Overview

We are one of the worlds leading independent semiconductor foundries, providing comprehensive wafer fabrication services and
technologies to our customers based on their designs. We manage our business and measure our results of operations based on a single industry segment.

Cyclicality of the Semiconductor Industry

As the semiconductor industry is highly cyclical, revenues varied significantly over this period. It can take several years to plan and
construct a fab and bring it to operations. Therefore, during periods of favorable market conditions, semiconductor manufacturers often begin building new fabs or acquiring existing fabs in response to anticipated demand growth for semiconductors.
In addition, after commencement of commercial operations, fabs can increase production volumes rapidly. As a result, large amounts of semiconductor manufacturing capacity typically become available during the same time period. Absent a proportional
growth in demand, this increase in supply often results in semiconductor manufacturing overcapacity, which has led to a sharp decline in semiconductor prices and significant capacity under-utilization. Our average capacity utilization rate increased
to 81.9% in 2007, decreased to 70.7% in 2008 and decreased to 69.4% in 2009, primarily due to a general decline in the semiconductor industry as a result of the global economic recession and credit crisis since the second half of 2008. We believe
that our results in 2007, 2008 and 2009 reflect the ongoing uncertainty in the global economy, conservative corporate information technology spending and low visibility with respect to end market demand.

Pricing

We price our products on either a per die or a per wafer basis, taking into account the complexity of the technology, the prevailing
market conditions, the order size, the cycle time, the strength and history of our relationship with the customer and our capacity utilization. Because semiconductor wafer prices tend to fluctuate frequently, we in general review our pricing on a
quarterly basis. As a majority of our costs and expenses are fixed or semi-fixed, fluctuations in our products average selling prices historically have had a substantial impact on our margins. Our average selling price decreased approximately
11.6% from 2008 to 2009, mainly due to a change in our product mix.

We believe that our current level of pricing is
comparable to that of other leading foundries in each respective geometry. We believe that our ability to provide a wide range of advanced foundry services and process technologies as well as large manufacturing capacity will enable us to compete
effectively with other leading foundries at a comparable price level.

Capacity Utilization Rates

Our operating results are characterized by relatively high fixed costs. In 2007, 2008 and 2009, approximately 64.8%, 68.1% and 67.2%,
respectively, of our manufacturing costs consisted of depreciation, a portion of indirect material costs, amortization of license fees and indirect labor costs. Our variable costs decreased in 2009 due to a decrease in direct material costs from
NT$5,985 million in 2008 to NT$4,988 million (US$156 million) in 2009 due to lower direct material prices.

If our utilization
rates increase, our costs would be allocated over a larger number of units, which generally leads to lower unit costs. As a result, our capacity utilization rates can significantly affect our margins. Our utilization rates have varied from period to
period to reflect our production capacity and market demand. Our average capacity utilization rate increased to 81.9% in 2007 but decreased to 70.7% and 69.4% in 2008 and 2009, respectively, primarily due to a general decline in the semiconductor
industry as a result of the global economic recession and credit crisis since the second half of 2008. Utilization rates can also be affected by efficiency in production facility and product flow management. Other factors affecting utilization rates
are the complexity and mix of the wafers produced, overall industry conditions, the level of customer orders, mechanical failure, disruption of operations due to expansion of operations, relocation of equipment or disruption of power supply and fire
or natural disaster.



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Our production capacity is determined by us based on the capacity ratings given by
manufacturers of the equipment used in the fab, adjusted for, among other factors, actual output during uninterrupted trial runs, expected down time due to set up for production runs and maintenance, expected product mix and research and
development. Because these factors include subjective elements, our measurement of capacity utilization rates may not be comparable to those of our competitors.

Change in Product Mix and Technology Migration

Because the price of wafers processed with different technologies varies significantly, the mix of wafers that we produce is among the
primary factors that affect our revenues and profitability. The value of a wafer is determined principally by the complexity and performance of the processing technology used to produce the wafer, as well as by the yield and defect density.
Production of devices with higher levels of functionality and performance, with better yields and lower defect density as well as with greater system-level integration requires better manufacturing expertise and generally commands higher wafer
prices. The increase in price generally has more than offset associated increases in production cost once an appropriate economy of scale is reached.

Prices for wafers of a given level of technology generally decline over the processing technology life cycle. As a result, we have
continuously been migrating to increasingly sophisticated technologies to maintain the same level of profitability. We began our volume production with 90 nanometer and 65 nanometer technologies in 2004 and 2006, respectively. We started
40-nanometer production in the first half of 2009. These types of technology migration require continuous capital and research and development investment. Because developing and acquiring advanced technologies involve substantial capital investment,
we expect to continue to spend a substantial amount of capital on upgrading our technologies and capabilities.

Manufacturing Yields

Manufacturing yield per wafer is measured by the number of functional dice on that wafer over the maximum number of dice that can be
produced on that wafer. A small portion of our products is priced on a per die basis, and our high manufacturing yields have assisted us in achieving higher margins. In addition, with respect to products that are priced on a per wafer basis, we
believe that our ability to deliver high manufacturing yields generally has allowed us to either charge higher prices per wafer or attract higher order volumes, resulting in higher margins.

We continually upgrade our process technologies. At the beginning of each technological upgrade, the manufacturing yield utilizing the
new technology is generally lower, sometimes substantially lower, than the yield under the current technology. The yield is generally improved through the expertise and cooperation of our research and development personnel and process engineers, as
well as equipment and at times raw material suppliers. Our policy is to offer customers new process technologies as soon as the new technologies have passed our internal reliability tests.

Investments

Most of our investments were made to improve our market position and for strategy considerations, a significant portion of which are in
foundry-related companies including fabless design customers, raw material suppliers and intellectual property vendors. In addition, we also invest in non-foundry-related businesses, such as Mega Financial Holding Co. Ltd. and ProMOS Technologies
Inc. In recent years, we have from time to time disposed of investments for financial, strategic or other purposes.

See
Item 4. Information on the CompanyB. Business OverviewOur Investments for a description of our investments.

Treasury Share Programs

We have from time to time announced plans, none of which was binding on us, to buy back up to a fixed amount of our shares on the Taiwan
Stock Exchange at the price range set forth in the plans. In 2007, 2008 and 2009, we purchased an aggregate of nil, 200 million and 300 million, respectively, of our shares under these plans. We had no buy back program in 2007. From
August 28, 2008 to October 2, 2008, we purchased 200 million of our shares for cancellation. From December 16, 2008 to February 16, 2009, we purchased 300 million of our shares at an average price of NT$7.98 per share
to transfer to employees. In addition, on February 2, 2010, the board of directors passed a resolution to purchase up to 300 million of our shares on the Taiwan Stock Exchange at a price between NT$10.95 and NT$25.85 per share during the
period from February 3, 2010 to April 2, 2010 to transfer to employees. Of the repurchased shares, 137 million, 97 million and 78 million shares were purchased by our employees in November 2003, December 2007 and
December 2009, respectively; 556 million shares in aggregate were canceled in 2008.



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Critical Accounting Policies

General

Our discussion
and analysis of our financial condition and results of operations are based upon our consolidated financial statements included in the annual report, which have been prepared in accordance with ROC GAAP. ROC GAAP varies in certain respects from US
GAAP. These differences and their effects on our financial statements are described in Note 35 to our audited consolidated financial statements included elsewhere in this annual report. The preparation of our consolidated financial statements
requires us to make estimates and judgments that affect the reported amounts of assets, liabilities, revenues and expenses, and related disclosure of contingent assets and liabilities. We evaluate our estimates on an ongoing basis and base our
estimates on historical experience and on various other assumptions that are believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not
readily apparent from other sources. Actual results may differ from these estimates under different assumptions or conditions.

We believe the following critical accounting policies involve significant judgments and estimates used in the preparation of our
consolidated financial statements.

Revenue Recognition

We recognize revenue when persuasive evidence of an arrangement exists, the product or service has been delivered, the sellers price
to the buyer is fixed or determinable and collectability is reasonably assured. Most of our sales transactions have shipping terms of Free on Board, or FOB, or Free Carrier, or FCA, shipment in which title and the risk of loss or damage are
transferred to the customer upon delivery of the product to a carrier approved by the customer.

Allowance for sales returns
and discounts are estimated based on the history of customer complaints, historical experiences, management judgment and any other known factors that might significantly affect collectability. Such allowances are recorded in the same period in which
sales are made. Shipping and handling costs are included in sales expenses.

Accounts Receivable and Allowance for Doubtful Accounts

The allowance for doubtful accounts is provided based on the evaluation of collectability and aging analysis of accounts and
on managements judgment. In circumstances where the ability of a specific customer to meet its financial obligations is in doubt, a specific allowance will be provided. Considerable judgment is required in assessing the ultimate realization of
these receivables including the current credit worthiness and the past collection history of each customer. If the financial conditions of our customers were to worsen, additional allowances would be required. A deterioration of economic conditions
either in the ROC or in other major overseas markets may contribute to the deterioration of financial conditions of our customers, resulting in an impairment of their ability to make payments.

The allowances for doubtful accounts accounted for 0.01%, 1.23% and 0.50% of our accounts receivables as of December 31, 2007, 2008
and 2009, respectively. The decrease in the allowance for doubtful accounts as a percentage of our accounts receivables is primarily due to an increase in accounts receivables, which reflected the recovery of the general economy since the second
half of 2009.



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Inventory

Inventories are recorded at cost when acquired and stated at the lower of cost item by item, based on the weighted average method, or
market value at the balance sheet date. The market values of raw materials and supplies are determined on the basis of replacement cost while net realizable values determined by the average selling price of the most recent periods are used as market
values of work-in-process and finished goods. In addition, allowances for obsolete and slow-moving inventories are determined by analyzing the age and sales condition of the inventories.

Income Taxes

Most of
our existing tax benefits arise from investment tax credits, and others from net operating loss carry-forward and temporary differences. We recognize these tax benefits as deferred tax assets. Income tax expense or benefit is recognized when there
is a net change in deferred tax assets and liabilities. A valuation allowance is recorded to reduce our deferred tax assets to the extent that we believe it is more likely than not that the tax benefits will not be realized. The assessment of the
valuation allowance involves subjective assumptions and estimates as it principally depends on the estimation of future taxable income and prudent and feasible tax planning strategies. If future taxable income is lower than expected due to future
market conditions or other reasons or in the event we determine that we will not be able to realize all or part of our net deferred tax assets in the future, an adjustment to our deferred tax assets valuation allowance may be required with the
adjusting amount charged to income in this period. Likewise, should future taxable income be higher than expected due to future market conditions or other reasons or in the event we determine that we would be able to realize our deferred tax assets
in the future in excess of our net recorded amount, an adjustment to our deferred tax assets valuation allowance would increase income in this period.

According to Accounting Standards Codification, or ASC, 740-10, Income Tax, our uncertain tax positions are accounted for based on
a two-step process. The first step is to evaluate the tax position for recognition by determining if it is more likely than not that the position will be sustained based on the technical merits. The second step requires us to estimate and measure
the tax benefit as the largest amount that is more than 50% likely to be realized upon ultimate settlement. Although ASC 740-10,Income Tax provides further clarification of the accounting for uncertainty in income taxes recognized in the
financial statements, significant management judgment must be made and used in connection with the recognition threshold and measurement attribute. Determination of our uncertain tax positions involves the legal and factual interpretation with
respect to the application of relevant tax laws and regulations, along with our assessment of other factors including changes in facts or circumstances, changes in tax law, and/or effectively settled issues under audit. As mentioned above, the
application of tax laws and regulations is inherently subject to legal and factual interpretation, judgment and uncertainty. In addition, tax laws and regulations themselves are subject to change as a result of changes in fiscal policy, changes in
legislation, the evolution of regulations and court rulings. Therefore, the final settlement of these uncertain tax positions might be materially different from our estimates, which could result in the need to record additional tax liabilities or
potentially reverse previously recorded tax liabilities.

Long-lived Assets Impairment

Pursuant to ROC GAAP and US GAAP, we are required to review the long-lived assets for impairment whenever events or changes in
circumstances indicate that the carrying value of the long-lived assets might not be recoverable. Such review may include assessing whether there is a significant decrease in market values of long-lived assets or significant deterioration of market
conditions to indicate the carrying value of such assets may not be recovered through future cash flows, any change in the use of long-lived assets to negatively affect their fair values, and any obsolescence issues that would lead to a lower fair
value determination. If there is an indication that an asset might be impaired, we proceed with a further impairment test, which is performed for asset groups related to the lowest level of identifiable independent cash flows. Due to our asset usage
model and the interchangeable nature of our semiconductor manufacturing capacity, we must make subjective judgments and estimates in determining the independent cash flows that can be related to specific asset groups, including the service potential
of long-lived assets through its estimated useful life, cash-flow-generating capacity, physical output capacity, potential fluctuation of economic cycle in the semiconductor industry and our operating situation. Under ROC GAAP, we compare the
carrying amount with the recoverable amount derived from discounted cash flow analysis to determine whether the asset is impaired and recognize impairment loss to the extent that its carrying amount exceeds its recoverable amount. If there is
evidence that impairment losses recognized previously no longer exists, or has diminished, and the recoverable amount of the long-lived assets increases because of an increase in the assets estimated service potential, the amount of loss may
be reversed to the extent that the resulting carrying value should not exceed the carrying value had no impairment loss been recognized in prior years. Under US GAAP, we compare the carrying amount with undiscounted cash flows to evaluate
whether the asset is impaired and recognize an impairment loss equal to the excess of its carrying amount over its fair value derived from discounted cash flow analysis. Such impairment cannot be reversed. However, changes in the estimates of
expected cash flows may result in impairment charges in the future.



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Pension

All of our regular employees were entitled to a defined benefit pension plan under the ROC Labor Standards Law, or Labor Standards Law,
prior to July 1, 2005. Such pension plan was managed by an independently administered pension fund committee, and fund assets were deposited under the committees name at the Bank of Taiwan. On July 1, 2005, the ROC Labor Pension Act,
or the Labor Pension Act, became effective, under which qualified employees may elect to apply the pension calculation either under the ROC Labor Standards Law or under the ROC Labor Pension Act in accordance with a new defined contribution plan.
The employees that selected to apply the Labor Pension Act may have their seniority previously accrued under the Labor Standards Law retained.

Under the defined benefit pension plan of the Labor Standards Law, we have significant pension benefit costs and liabilities that are
developed from actuarial valuations. Inherent in these valuations are key assumptions including discount rates and expected return on plan assets. We consider current market conditions, including changes in interest rates, in selecting these
assumptions. In addition to changes resulting from fluctuations in our related headcount, changes in the related pension costs or liabilities may also occur in the future due to changes in assumptions. Under the defined contribution pension plan of
the ROC Labor Pension Act, we are required to make monthly contributions to employees individual pension accounts and recognize expenses in the periods in which the contributions become due.

Investments in Debt and Equity Securities

Under US GAAP and ROC GAAP, equity securities over which we exercise no significant influence or control and with readily
determinable fair values and debt securities are to be classified as either trading, which are known as financial assets at fair value through profit or loss, or FVTPL, under ROC GAAP, available-for-sale or held-to-maturity securities. Debt
securities that we have the intent and ability to hold to maturity are classified as held-to-maturity securities and reported at their amortized cost. Debt and equity securities that are bought and traded for short-term profit are classified as
trading securities and reported at fair value, with unrealized gains and losses included in earnings. Debt and equity securities not classified as either held-to-maturity or trading securities are classified as available-for-sale securities and
reported at fair value, with unrealized gains and losses reported in other comprehensive income under stockholders equity. Unrealized losses that are deemed to be other than temporary are charged to earnings. For individual securities
classified as either available-for-sale or held-to-maturity, we would determine whether a decline in fair value below cost is other than temporary pursuant to guidance provided by ASC 320-10-35, Investments-Debt and Equity Securities. We
consider, among other factors, information concerning significant adverse changes in market conditions in which the investee operates and operating issues specific to the investee in determining whether a decline in value is temporary. In general, a
decline in market value below cost for a continuous period of six months is considered to be other than temporary unless there is persuasive evidence to the contrary. If the decline in fair value is judged to be other than temporary, the cost basis
of the individual security is written down to fair value with a charge against earnings.

Derivative Instruments

Under US GAAP and ROC GAAP, the embedded derivative features contained in exchangeable bonds are bifurcated and separately accounted
for if the economic characteristics and risks of the embedded derivative instruments are not clearly and closely related to those of the host contracts. Those bifurcated embedded derivatives are fair valued at the end of each reporting period by
using the option pricing model with the changes in fair value included in earnings. The valuation model uses the market-based observable inputs including share price, volatility, credit spread and swap rates.



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We also hold certain freestanding derivative instruments such as interest rate swap and
forward contracts, which are fair valued at each reporting period end. The fair values of these instruments are determined using market established valuation techniques, which involve certain key inputs such as the expected interest forward rate,
expected volatility in interest rates, spot exchange rate and swap point. Any change in such key inputs could materially impact the determination of fair value of these derivative instruments.

Employee Stock Options

Under ROC GAAP, for stock options granted before January 1, 2008, we apply the intrinsic value method to recognize the difference
between the market price of the stock at grant date and the exercise price of the employee stock option as compensation expense. For stock options granted on or after January 1, 2008, we recognize compensation cost using the fair value method
in accordance with ROC SFAS No. 39 Accounting for Share-Based Payment, or ROC SFAS 39, consistent with US GAAP. For equity-settled employee stock options, the corresponding increase in equity is measured at the fair value of the
options. For cash-settled employee stock options, the corresponding liability incurred is measured at the fair value of the liability and such fair value is remeasured subsequently at each reporting date through the settlement date.

The Black-Scholes option-pricing model requires the use of input assumptions, including expected volatility, expected life, expected
dividend rate and expected risk-free rate of return. We applied the historical realized volatility, which calculates volatility based on the historical stock price volatility over the time period equal to the expected term of the employee stock
option, in estimating expected volatility because our shares have been publicly traded for a long time. For the options granted prior to 2008, we determined the expected term as the mid-point between the vesting period and the contractual term by
using the simplified method. For the options granted after 2008, we determined the expected term based on historical stock option exercise data and we used the historical pattern of dividend yield for estimating the expected dividend of the
underlying employee stock options. For entities based in jurisdictions outside the United States, the risk-free interest rate is the implied yield of zero-coupon government bonds currently available in the market in which the shares are primarily
traded. Hence, we use the average yield of Taiwan Government Bond with the remaining term similar to the expected option term as the risk-free interest rate. The estimates of option fair value are not expected to foresee future events or the values
realized by employees who receive stock option at the end of plans. In addition, later events are not indicative of the rationality of the initial estimates of the fair value of options used by us. We adjust employee stock option expenses on an
annual basis for changes in expected forfeitures based on the examination of latest employee stock option forfeiture activity. The effect of adjusting the forfeiture rate used for expense amortization is recognized in the corresponding period in
which the expected forfeiture rate is changed.

A. Operating Results

Net Operating Revenues

We generate our net operating revenues primarily from fabricating semiconductor devices. We also derive a small portion of our net
operating revenues from wafer probe services that we perform internally as well as mask tooling services and assembly and test services that we subcontract out.

Cost of Goods Sold

Our costs of goods sold consist principally of:



| |  |  | overhead, including depreciation and maintenance of production equipment, indirect labor costs, indirect material costs, supplies, utilities and
royalties;
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------



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| |  |  | wafer costs;
| | - |  | ------------



| |  |  | direct labor costs; and
| | - |  | -----------------------



| |  |  | service charges paid to subcontractors for mask tooling, assembly and test services.
| | - |  | ------------------------------------------------------------------------------------

Our total depreciation expenses decreased from NT$37,830 million in 2007 to NT$37,197 million in 2008 and decreased to NT$33,530 million
(US$1,050 million) in 2009.

Operating Expenses

Our operating expenses consist of the following:



| |  |  | Sales and marketing expenses. Sales and marketing expenses consist primarily of intellectual property development expenses, salaries and related
personnel expenses, wafer sample expenses and related marketing expenses. Wafer samples are actual silicon samples of our customers early design ideas made with our most advanced processes and provided to those customers.
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | General and administrative expenses. General and administrative expenses consist primarily of salaries for our administrative, finance and human
resource personnel, fees for professional services, and cost of computer and communication systems to support our operations.
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Research and development expenses. Research and development expenses consist primarily of research testing related expenses, salaries and related
personnel expenses and depreciation on the equipment used for our research and development.
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Non-operating Income and
Expenses

Our non-operating income principally consists of:



| |  |  | interest income, which has been primarily derived from time deposits;
| | - |  | ---------------------------------------------------------------------



| |  |  | investment income accounted for under the equity method, which has been primarily derived from the recognition of investee companies net income
based on the percentage of their ownership we hold;
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | gain on disposal of investments, which has been primarily derived from our disposal of long-term investments accounted for under the equity method,
available-for-sale financial assets and financial assets measured at cost;
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | dividend income, which has been primarily derived from the financial instruments of financial assets at fair value through profit or loss,
available-for-sale financial assets and financial assets measured at cost;
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | gain on valuation of financial assets and liabilities, which have been primarily derived from disposal of and changes in the values of financial assets
and liabilities classified as FVTPL according to ROC SFAS No. 34 Financial Instruments: Recognition and Measurement, or ROC SFAS 34; and
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | other income, which has been primarily derived from our branchs grant income received from the government in Singapore.
| | - |  | ------------------------------------------------------------------------------------------------------------------------



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Our non-operating expenses principally consist of:



| |  |  | loss on valuation of financial assets and liabilities, which have been primarily derived from disposal of and changes in the values of financial assets
and liabilities classified as FVTPL according to ROC SFAS 34;
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | investment loss accounted for under the equity method, which has been primarily derived from the recognition of investee companies net loss based
on the percentage of their ownership we hold; and
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | impairment loss, which have been primarily derived from the loss recognized in our financial assets measured at cost, non-current and long-live assets.
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------

Taxation

Based on our status as a company engaged in the semiconductor business in Taiwan, we have been granted exemptions from income taxes in
Taiwan with respect to income attributable to capital increases for the purpose of purchasing equipment related to the semiconductor business for a period of four or five years following each such capital increase. This tax exemption resulted in tax
savings of approximately NT$939 million, NT$472 million and NT$766 million (US$24 million) in 2007, 2008 and 2009, respectively. Our tax rate was 25% in 2007, 2008 and 2009, the same rate applicable to companies outside the Hsinchu Science Park, and
the statutory tax rate has been changed from 25% to 20% effective January 1, 2010.

We also benefit from other tax
incentives generally available to technology companies in Taiwan, including tax credits applicable against corporate income tax that range from 30% to 50% of the amount of certain research and development and employee training expenses and 5% to 20%
of the amount of investment in certain qualified equipment and technology. These tax incentives resulted in tax savings of approximately NT$1,072 million, NT$609 million and nil in 2007, 2008 and 2009, respectively.

After taking into account the tax exemptions and tax incentives discussed above, we recorded NT$2,810 million, NT$997 million and NT$651
million (US$20 million) of tax expense in 2007, 2008 and 2009, respectively.

In 1997, the ROC Income Tax Law was amended to
integrate corporate income tax and stockholder dividend tax to eliminate the double taxation effect for resident stockholders of Taiwan companies. Under the amendment, all retained earnings generated from January 1, 1998 and not distributed to
stockholders as dividends in the following year will be assessed a 10% retained earnings tax. See Item 10. Additional InformationE. ROC Tax ConsiderationsDividends. As a result, if we do not distribute all of our annual
retained earnings generated beginning January 1, 1998 as either cash and/or stock dividends in the following year, these earnings will be subject to the 10% retained earnings tax. In addition, the ROC government enacted the ROC Income Basic Tax
Act, also known as the Minimum Income Tax Statute, or the Statute, which became effective on January 1, 2006 and imposes an alternative minimum tax, or AMT. The AMT imposed under the Statute is a supplemental tax which is payable if
the income tax payable pursuant to the ROC Income Tax Act is below the minimum amount prescribed under the Statute. In accordance with the Statute, a company will be subject to a 10% AMT if its annual taxable income under the Statute exceeds NT$2
million.

Comparisons of Results of Operations

The following table sets forth some of our results of operations data as a percentage of our net operating revenues for the periods
indicated.



|                       |  |                         |   |  |       |   |  |       |  
|---------------------- |  | ----------------------- | - |  | ----- | - |  | ----- | -
|                       |  | Year Ended December 31, |  
|                       |  | 2007                    |   |  | 2008  |   |  | 2009  |  
|Net operating revenues |  | 100.0                   | % |  | 100.0 | % |  | 100.0 | %
|Cost of goods sold     |  | (79.5                   | ) |  | (86.9 | ) |  | (83.1 | )
|                       |  |                         |   |  |       |   |  |       |  
|                       |  |                         |  
|Gross profit           |  | 20.5                    |   |  | 13.1  |   |  | 16.9  |  
|Operating expenses:    |  |                         |   |  |       |   |  |       |  
|Sales and marketing    |  | (3.6                    | ) |  | (3.6  | ) |  | (3.1  | )



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|                                                       |  |                         |   |  |       |   |  |      |  
|------------------------------------------------------ |  | ----------------------- | - |  | ----- | - |  | ---- | -
|                                                       |  | Year Ended December 31, |  
|                                                       |  | 2007                    |   |  | 2008  |   |  | 2009 |  
|General and administrative                             |  | (3.3                    | ) |  | (3.1  | ) |  | (3.0 | )
|Research and development                               |  | (8.5                    | ) |  | (8.6  | ) |  | (8.8 | )
|                                                       |  |                         |   |  |       |   |  |      |  
|                                                       |  |                         |  
|Operating income (loss)                                |  | 5.1                     |   |  | (2.2  | ) |  | 2.0  |  
|Net non-operating income (loss)                        |  | 12.3                    |   |  | (20.5 | ) |  | (0.2 | )
|                                                       |  |                         |   |  |       |   |  |      |  
|                                                       |  |                         |  
|Income (Loss) before income tax and minority interests |  | 17.4                    |   |  | (22.7 | ) |  | 1.8  |  
|Income tax expense                                     |  | (2.5                    | ) |  | (1.0  | ) |  | (0.7 | )
|                                                       |  |                         |   |  |       |   |  |      |  
|                                                       |  |                         |  
|Extraordinary gain                                     |  |                        |   |  |      |   |  | 0.7  |  
|                                                       |  |                         |   |  |       |   |  |      |  
|                                                       |  |                         |  
|Net income (loss)                                      |  | 14.9                    |   |  | (23.7 | ) |  | 1.8  |  
|                                                       |  |                         |   |  |       |   |  |      |  
|Attributable to:                                       |  |                         |   |  |       |   |  |      |  
|the Company                                            |  | 15.0                    |   |  | (23.0 | ) |  | 4.2  |  
|minority interests                                     |  | (0.1                    | ) |  | (0.7  | ) |  | (2.4 | )

Year Ended
December 31, 2009 Compared to Year Ended December 31, 2008

Net operating revenues. Net
operating revenues decreased by 5.6% from NT$96,814 million in 2008 to NT$91,390 million (US$2,860 million) in 2009, largely attributable to a decrease in our average selling price as a result of the global recession since the second half of 2008
which resulted in lower demand in the semiconductor industry.

Cost of goods sold. Cost of goods sold decreased
by 9.7% from NT$84,102 million in 2008 to NT$75,975 million (US$2,378 million) in 2009, primarily due to a decrease in depreciation and our continuous effort on cost reduction, including negotiation with suppliers for more favorable prices,
streamlining the workforce and implementation of unpaid leave plans.

Gross profit and gross margin. Gross
margin increased from 13.1% in 2008 to 16.9% in 2009, primarily due to our improved operating efficiencies as a result of cost reduction.

Operating income (loss) and operating margin.Operating income (loss) increased substantially from NT$(2,100) million in
2008 to NT$1,847 million (US$58 million) in 2009. Our operating margin increased from (2.2)% in 2008 to 2.0% in 2009. The increase in operating margin is largely due to an increase in gross margin. Operating expenses decreased by 8.4% from NT$14,812
million in 2008 to NT$13,568 million (US$424 million) in 2009.

Sales and marketing expenses. Our sales
and marketing expenses decreased by 19.6% from NT$3,483 million in 2008 to NT$2,800 million (US$87 million) in 2009. The decrease in sales and marketing expenses was mainly due to a decrease in IP royalty expenses and the recovery of bad debts. Our
sales and marketing expenses as a percentage of our net operating revenues decreased slightly from 3.6% in 2008 to 3.1% in 2009.

General and administrative expenses. Our general and administrative expenses decreased by 10.8% from NT$3,055 million in
2008 to NT$2,724 million (US$85 million) in 2009 primarily as a result of our expense control activities. Our general and administrative expenses as a percentage of our net operating revenues decreased slightly from 3.1% in 2008 to 3.0% in 2009.

Research and development expenses. Our research and development expenses decreased by 2.8% from NT$8,274
million in 2008 to NT$8,044 million (US$252 million) in 2009. The decrease in research and development expenses resulted primarily from our expense control activities. Our research and development expenses as a percentage of our net operating
revenues increased from 8.6% in 2008 to 8.8% in 2009.



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Net non-operating loss. Net non-operating loss decreased by 99.1% from
NT$19,886 million in 2008 to NT$174 million (US$6 million) in 2009, mainly due to a decrease in loss on valuation of financial assets from NT$2,398 million to nil, a decrease in impairment loss from NT$13,180 million to NT$4,007 million (US$125
million) and a decrease in net investment loss accounted for under the equity method from NT$10,465 million to net investment gain accounted for under the equity method of NT$180 million (US$6 million), partially offset by a 42.0% decrease in gain
on disposal of investments from NT$3,386 million to NT$1,965 million (US$62 million) and a 55.1% decrease in dividend income from NT$2,094 million to NT$941 million (US$29 million).

Net income (loss) attributable to the Company. Due to the factors described above, we incurred a net income of NT$3,874
million (US$121 million) in 2009, compared with a net loss of NT$(22,320) million in 2008.

Year Ended December 31, 2008 Compared
to Year Ended December 31, 2007

Net operating revenues. Net operating revenues decreased by 14.6%
from NT$113,311 million in 2007 to NT$96,814 million in 2008, largely attributable to a decrease in customer demand, which resulted in a 11.7% decrease in wafers sold, from 3,745 thousand wafers in 2007 to 3,308 thousand wafers in 2008.

Cost of goods sold. Cost of goods sold decreased by 6.6% from NT$90,072 million in 2007 to NT$84,102 million in
2008. Our capacity utilization rate decreased from 81.9% in 2007 to 70.7% in 2008.

Gross profit and gross
margin. Our gross margin fluctuation depends on the level of manufacturing capacity, wafer shipments and product mix. Gross margin rate decreased from 20.5% in 2007 to 13.1% in 2008, which was primarily driven by lower capacity utilization
in 2008. As our utilization rates decreased, our costs were allocated over a smaller number of units, which led to higher unit costs.

Operating income (loss) and operating margin. Operating income (loss) decreased substantially from NT$5,815 million in 2007
to NT$(2,100) million in 2008. Our operating margin decreased from 5.1% in 2007 to (2.2)% in 2008. The decrease in operating margin is largely due to a decrease in gross margin.

Sales and marketing expenses. Our sales and marketing expenses decreased by 14.4% from NT$4,069 million in 2007 to NT$3,483
million in 2008. The decrease in sales and marketing expenses was mainly due to decreases in sample and mask expenses for sales promotion. Our sales and marketing expenses as a percentage of our net operating revenues remained at 3.6% in both 2007
and 2008.

General and administrative expenses. Our general and administrative expenses decreased by 18.0% from
NT$3,724 million in 2007 to NT$3,055 million in 2008. The decrease in general and administrative expenses was primarily due to decreases in personnel related expenses as a result of decreases in headcounts and salaries in 2008. Our general and
administrative expenses as a percentage of our net operating revenues decreased from 3.3% in 2007 to 3.1% in 2008.

Research and development expenses. Our research and development expenses decreased by 14.1% from NT$9,631 million in 2007
to NT$ 8,274 million in 2008. The decrease in research and development expenses resulted primarily from the reduction of our development of 65-nanometer process technologies. Our research and development expenses as a percentage of our net
operating revenues increased from 8.5% in 2007 to 8.6% in 2008.

Net non-operating income (loss). Net
non-operating income (loss) substantially decreased by 243.5% from NT$13,855 million in 2007 to NT$(19,886) million in 2008 mainly due to the impairment loss and investment loss accounted for under the equity method. Impairment loss increased from
NT$576 million in 2007 to NT$13,180 million in 2008. Results for investments accounted for under the equity method decreased from a gain of NT$626 million in 2007 to a loss of NT$(10,465) million in 2008.

Net income (loss) attributable to the Company. Due to the factors described above, we recognized a net loss of NT$(22,320)
million in 2008, compared to a net income of NT$16,962 million in 2007.



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B. Liquidity and Capital Resources

The foundry business is highly capital intensive. Our development over the past three years has required significant investments.
Additional expansion for the future generally will continue to require significant cash for acquisition of plant and equipment to support increased capacities, particularly for the production of 12-inch wafers, although our expansion program will be
adjusted from time to time to reflect market conditions. In addition, the semiconductor industry has historically experienced rapid changes in technology. To maintain competitiveness at the same capacity, we are required to make adequate investments
in plant and equipment. In addition to our need for liquidity to support the large fixed costs of capacity expansion and the upgrading of our existing plants and equipment for new technologies, as we ramp up production of new plant capacity, we
require significant working capital to support purchases of raw materials for our production and to cover variable operating costs such as salaries until production yields provide sufficiently positive margins for a fabrication facility to produce
operating cash flows.

We have financed our capital expenditure requirements in recent years with cash flows from operations
as well as from bank borrowings, the issuance of bonds and equity-linked securities denominated in NT dollars and U.S. dollars. We incurred capital expenditures of NT$28,299 million, NT$11,515 million and NT$17,618 million (US$551 million) in 2007,
2008 and 2009, respectively, requiring a significant amount of funding from financing activities. Once a fab is in operation at acceptable capacity and yield rates, it can provide significant cash flows. Cash flows significantly exceed operating
income, reflecting the significant non-cash depreciation expense. We generated cash flows from operations of NT$48,124 million, NT$45,251 million and NT$32,427 million (US$1,015 million) in 2007, 2008 and 2009, respectively.

As of December 31, 2009, we had NT$66,153 million (US$2,071 million) of cash and cash equivalents and NT$2,096 million (US$66
million) of FVTPL, current.

We believe that our working capital, cash flow from operations and unused lines of credit are
sufficient for our present requirements.

Operating Activities

Our operating activities generated cash of NT$32,427 million (US$1,015 million) in 2009. Cash generated from our operating activities for
2009 significantly exceeded net income due to the add-back of non-cash items, such as depreciation and amortization in the amount of NT$34,230 million (US$1,071 million). Cash generated by operating activities decreased from NT$45,251 million in
2008 to NT$32,427 million (US$1,015 million) in 2009, primarily due to a decrease in cash collected from our customers.

Investment Activities

Net cash used in our investment activities was NT$19,218 million (US$601 million) in 2009. In 2009, we used cash of NT$17,618 million
(US$551 million) to purchase equipment primarily used at our fabs. This was offset by the net cash provided by acquisition and disposal of available-for-sale financial assets in the amount of NT$2,682 million (US$84 million).

Financing Activities

Net cash generated from our financing activities was NT$4,944 million (US$155 million) in 2009. We issued exchangeable bonds of NT$6,671
million (US$209 million) and acquired treasury stock of NT$2,393 million (US$75 million) in 2009.

We had NT$129 million (US$4
million) outstanding short-term loans as of December 31, 2009. We had total availability under existing short-term lines of credit of NT$12,088 million (US$378 million) as of December 31, 2009.

We had bonds payable of NT$12,767 million (US$400 million) in the aggregate as of December 31, 2009.



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As of December 31, 2009, our outstanding long-term debts primarily consisted of NT$100
million unsecured long-term bank loans due by 2012 and NT$700 million secured long-term bank loans due by 2013. The interest rates of our long-term bank loans range from 1.275% to 1.815%.

As of December 31, 2009, the current portion of bonds due within one year was NT$12,767 million (US$400 million), and the current
portion of long-term bank loans due within one year was NT$34 million (US$1 million).

Capital Expenditures

We have entered into several construction contracts for the expansion of our factory space. As of December 31, 2009, these
construction contracts amounted to NT$2,750 million (US$86 million) with an unaccrued portion of the contracts of NT$181 million (US$6 million).

In 2009, we spent approximately NT$17,618 million (US$551 million) primarily to purchase 8-inch and 12-inch wafer-processing equipment
and other equipment for research and development and production purposes. Our initial budget for purchases of semiconductor manufacturing equipment for 2010 is expected to be in the range between US$1,200 million and US$1,500 million. We may adjust
the amount of our capital expenditures upward or downward based on the progress of our capital projects, market conditions and our anticipation of future business outlook.

We believe that our existing cash and cash equivalents and short-term investments will be sufficient to meet our working capital and
capital expenditure requirements at least through the end of 2010. We also expect to fund a portion of our capital requirements in 2010 through the cash provided by operating activities. Due to rapid changes in technology in the semiconductor
industry, however, we have frequent demand for investment in new manufacturing technologies. We cannot assure you that we will be able to raise additional capital, should that become necessary, on terms acceptable to us, or at all. If financing is
not available on terms acceptable to us, management intends to reduce expenditures so as to delay the need for additional financing. To the extent that we do not generate sufficient cash flows from our operations to meet our cash requirements, we
may rely on external borrowings and securities offerings to finance our working capital needs or our future expansion plans. The sale of additional equity or equity-linked securities may result in additional dilution to our stockholders. Our ability
to meet our working capital needs from cash flow from operations will be affected by the demand for our products and change in our product mix, which in turn may be adversely affected by several factors. Many of these factors are beyond our control,
such as economic downturns and declines in the average selling prices of our products. The average selling prices of our products have been subjected to downward pressure in the past and are reasonably likely to be subject to further downward
pressure in the future. We have not historically relied, and we do not plan to rely in the foreseeable future, on off-balance sheet financing arrangements to finance our operations or expansion.

Transactions with Related Parties

Our transactions with related parties have been conducted on arms-length terms. See Item 7. Major Stockholders and Related
Party TransactionsB. Related Party Transactions and Note 27 to our audited consolidated financial statements included in this annual report.

Inflation/Deflation

We
do not believe that inflation in the ROC has had a material impact on our results of operations.

US GAAP Reconciliation

Our consolidated financial statements are prepared in accordance with ROC GAAP, which differs in certain significant
respects from US GAAP. Such differences include methods for measuring the amounts shown in the financial statements and additional disclosures required by US GAAP. Note 35 to our audited financial statements, included in this annual report, provides
a discussion and quantification of the differences between ROC GAAP and US GAAP as they related to us. We provide a summary of material differences included therein below.



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The following table sets forth a comparison of our net income (loss) and stockholders
equity in accordance with ROC GAAP and US GAAP for the periods indicated.



|                                                        |  |                         |   |  |         |   |  |         |   |  |       |  
|------------------------------------------------------- |  | ----------------------- | - |  | ------- | - |  | ------- | - |  | ----- | -
|                                                        |  | Year Ended December 31, |  
|                                                        |  | 2007                    |   |  | 2008    |   |  | 2009    |  
|                                                        |  | NT$                     |   |  | NT$     |   |  | NT$     |   |  | US$   |  
|                                                        |  | (in millions)           |  
|Net income (loss) attributable to the Company           |  |                         |   |  |         |   |  |         |   |  |       |  
|Net income (loss) attributable to the Company, ROC GAAP |  | 16,962                  |   |  | (22,320 | ) |  | 3,874   |   |  | 121   |  
|US GAAP adjustments                                     |  |                         |   |  |         |   |  |         |   |  |       |  
|Compensation                                            |  | (2,648                  | ) |  | (1,925  | ) |  | (802    | ) |  | (25   | )
|Equity investees                                        |  | (4                      | ) |  | (80     | ) |  | (32     | ) |  | (1    | )
|Investments in debt and equity securities               |  | 319                     |   |  | 1,486   |   |  | (830    | ) |  | (26   | )
|Goodwill                                                |  | (23,761                 | ) |  | (14,571 | ) |  |        |   |  |      |  
|Treasury stock and related disposal                     |  | (132                    | ) |  | 8,817   |   |  |        |   |  |      |  
|Inventory                                               |  |                        |   |  | (362    | ) |  | 362     |   |  | 11    |  
|                                                        |  |                         |   |  |         |   |  |         |   |  |       |  
|Net income (loss) attributable to the Company, US GAAP  |  | (9,264                  | ) |  | (28,955 | ) |  | 2,572   |   |  | 80    |  
|                                                        |  |                         |   |  |         |   |  |         |   |  |       |  
|                                                        |  |                         |   | 
|Stockholders equity                                    |  |                         |   |  |         |   |  |         |   |  |       |  
|Stockholders equity, ROC GAAP                          |  | 242,997                 |   |  | 191,659 |   |  | 214,096 |   |  | 6,701 |  
|Compensation                                            |  | (513                    | ) |  | 63      |   |  | 65      |   |  | 2     |  
|Equity investees                                        |  | (511                    | ) |  | (199    | ) |  | (150    | ) |  | (5    | )
|Investments in debt and equity securities               |  | 236                     |   |  |        |   |  | 1,717   |   |  | 54    |  
|Goodwill                                                |  | 14,187                  |   |  | (8      | ) |  | (8      | ) |  |      |  
|Treasury stock and related disposal                     |  | (3,104                  | ) |  | (1,196  | ) |  | (2,769  | ) |  | (87   | )
|Pension                                                 |  | 527                     |   |  | 934     |   |  | 289     |   |  | 9     |  
|Inventory                                               |  |                        |   |  | (362    | ) |  |        |   |  |      |  
|                                                        |  |                         |   |  |         |   |  |         |   |  |       |  
|Stockholders equity, US GAAP                           |  | 253,819                 |   |  | 190,891 |   |  | 213,240 |   |  | 6,674 |  
|                                                        |  |                         |   |  |         |   |  |         |   |  |       |  



|Note. | Refer to Note 35 to our audited financial statements included elsewhere in this annual report.
|----- | ----------------------------------------------------------------------------------------------

Differences between ROC GAAP and US GAAP that have a material effect on our net income (loss) and stockholders equity under
ROC GAAP include compensation expenses, investments in debt and equity securities, goodwill, treasury stock and related disposal, pension and inventory.

Compensation Expenses

Pursuant to our articles of incorporation, we are required, under certain circumstances, to distribute a certain percentage of
unappropriated earnings as employee bonus and remuneration to directors and supervisors. Please refer to Item 10. Additional InformationB. Memorandum and Articles of AssociationDividends and Distributions. Remuneration to
directors and supervisors is settled in cash. Our articles of incorporation specifies that employee bonus can be settled in cash or shares or a combination of both. Under ROC GAAP, the distribution of employee bonus and remuneration to directors and
supervisors relating to periods prior to January 1, 2008 are treated as appropriation of retained earnings, and we are not required to charge, and have not charged, them to earnings. Employee bonus and remuneration to directors and supervisors
relating to the year beginning January 1, 2008 are charged to compensation expense and accrued based on managements estimate as charged and accrued under US GAAP. The employee bonus is initially accrued at the year-end based on
managements estimate according to our articles of incorporation with adjustment in the subsequent year after stockholders approval. Compensation expense relating to stock bonus is determined based on the fair market value of our common
shares on the grant date.

Under ROC GAAP, we apply the intrinsic value method to recognize compensation cost for employee
stock options granted before January 1, 2008. For stock options granted on or after January 1, 2008, we adopted ROC SFAS 39 to recognize compensation cost using the fair value method, which is consistent with US GAAP. For equity-settled
employee stock options, the corresponding increase in equity is measured at the grant date fair value. For cash-settled employee stock options, the corresponding liability incurred is measured at the fair value on the cash-settlement date, and is
remeasured at each reporting date through the settlement date.



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Investments in Debt and Equity Securities

Under ROC GAAP, investment in restricted stock, for which sale is restricted by governmental or contractual requirement is accounted for
as an available-for-sale security, and its fair value should be adjusted for the effect of restriction. Under US GAAP, however, the restricted investment which does not meet the definition of an equity security with readily determinable fair
value is accounted for as a cost method investment. These restricted investments are reclassified as available-for-sale securities when the period of restriction terminates within one year from the reporting date.

When we lose our significant influence on an investment accounted for under the equity method and reclassify it as an available-for-sale
security, the proportionate share of an investees equity adjustments for other comprehensive income should remain as a part of the carrying amount of the investment under ROC GAAP and the dividends received from the available-for-sale security
which were declared from pre-acquisition profits are deducted from the cost of the security. However, under US GAAP, the proportionate share of an investees equity adjustments for other comprehensive income should be offset against the
carrying amount of the investment at the time significant influence is lost, and the dividends received from the available-for-sale security are accounted for as dividend income.

Effective January 1, 2009, pursuant to ASC 810-10-45, Noncontrolling Interests in a Subsidiary, a change in our ownership
interest that does not result in a change of control shall be accounted for as equity transactions. In December 2009, we acquired additional ownership interests in one of our subsidiaries. Under ROC GAAP, the acquisition was accounted for using the
purchase method of accounting. However, under US GAAP, the acquisition was accounted for as an equity transaction. The difference between the fair value of the consideration paid and the book value of the noncontrolling interests is adjusted
against stockholders equity.

Goodwill

Under ROC GAAP, the fair value of the net assets received is deemed to be the value of the consideration for the acquisition of the
remaining interests in United Semiconductor, United Silicon, UTEK Semiconductor and United Integrated Circuits in January 2000. The acquisition cost of SiSMC was determined using the market price of the shares exchanged by us. Under US GAAP, it
is required that the securities exchanged be valued based on the market prices a few days before and after the date when the terms of the acquisition are agreed to and announced. The acquisition was accounted for using the acquisition method of
accounting and the purchase price was determined using the market value of the shares exchanged. The difference between the fair value of the shares exchanged and the fair value of the net assets acquired created goodwill.

Goodwill is subject to an annual impairment test or more frequently whenever events and circumstances change indicating the goodwill may
be impaired. Under ROC GAAP, our assessment of impairment includes identifying the goodwill-allocated cash generating unit, or CGU, determining the recoverable amount of CGU by using a discounted cash flow analysis, and ultimately comparing the
recoverable amount with the carrying amount of CGU including goodwill. If CGUs carrying amount is greater than its recoverable amount, an impairment loss is recognized and the written-down of goodwill cannot be reversed. Under US GAAP, we
have identified only one reporting unit, whose fair value is best determined by its quoted market prices on the New York Stock Exchange for our ADS securities and on the Taiwan Stock Exchange for our common stock. The fair value of the reporting
unit is allocated to relevant individual assets and liabilities to determine the fair value of the goodwill assigned to the reporting unit. If the carrying value of the goodwill is greater than its fair value, we write down the goodwill and
recognize the impairment loss. Such write-down cannot be reversed. Pursuant to the impairment test noted above, the derived fair values of our goodwill were below its carrying values as of December 31, 2007. As such, we recognized a goodwill
impairment charge of NT$23,761 million for the years ended December 31, 2007 based on our best estimates, as we were still in the process of valuing its assets and liabilities by the issuance of the December 31, 2007 financial statements.
The hypothetical purchase price allocation was completed in 2008, which resulted in a complete write-off of its goodwill balance of NT$18,062 million. Therefore, the adjustments to the 2007 estimate were recorded in 2008 based on the completion of
the final evaluation of the impairment loss in 2008. Since substantially all of the goodwill for both ROC GAAP and US GAAP purposes was written off during 2008, there will be no difference going forward.



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Treasury stock and related disposal

Some of our subsidiaries and equity method investees also hold our shares as investments. Under ROC GAAP, reciprocal shareholdings held by
subsidiaries, but not equity investees, are recorded as treasury stocks on our books. Under US GAAP, however, reciprocal shareholdings, whether being held by subsidiaries or equity investees, are recorded as treasury stocks on our books.
Accordingly, we recognized treasury stocks for reciprocal shareholdings held by equity-method investees and eliminated the related unrealized gain (loss) or investment gain (loss) as they are accounted for as treasury stock under US GAAP.

Pension

Under ROC GAAP, a minimum pension liability should be measured as the excess of accumulated benefit obligation over the fair value of the
plan assets and allowed the unrecognized items, including prior service costs and credits, gains or losses, and transition obligations or assets to be reported in disclosure shown as a plans funded status. Under US GAAP, ASC 715-30,
Defined Benefit Plans-Pension,requires an employer to recognize an asset for a plans overfunded status or a liability for a plans underfunded status with an offsetting adjustment to accumulated other comprehensive income.

Inventory

Under US GAAP, the allocation of fixed production overhead to inventory is based on the normal capacity of the production facilities.
Unallocated overheads are recognized as an expense in the period in which they are incurred. Other items such as abnormal freight, handling costs and amounts of wasted materials are treated as current period charges rather than as a portion of the
inventory cost pursuant to ASC 330, Inventory. ROC GAAP does not provide definite guidance for such abnormal items and the use of normal capacity was not mandatory before the adoption of ROC SFAS No. 10, Accounting for
Inventory, or ROC SFAS 10, on January 1, 2009.

Recent Accounting Pronouncements

In April 2009, the Accounting Research and Development Foundation in Taiwan issued ROC SFAS No. 41, Disclosures for Operating
Segment Information, or ROC SFAS 41, which establishes disclosure requirements to assist financial statement users to evaluate the different types of business activities in which an enterprise engages and the different economic environments in
which it operates. The determination of operating segments is significantly based on how an enterprises chief operating decision maker views and manages the business. This standard requires an enterprise to report separately information about
each operating segment that meets certain criteria. The standard is effective for fiscal years beginning after January 1, 2011. The impact that the adoption of ROC SFAS 41 will have on our financial reporting disclosure will depend on the
applicable future business model.

In October 2009, the FASB amended ASC 605, Revenue Recognition. Multiple-deliverable
arrangements will be separated in more circumstances than under existing US GAAP. The amendments establish a selling price hierarchy for determining the selling price of a deliverable. The selling price used for each deliverable will be based on
vendor-specific objective evidence, if available, or otherwise on third-party evidence; if neither vendor-specific objective evidence nor third-party evidence is available, it will be based on estimated selling price. The amendments replaced the
term fair value in the revenue allocation guidance with selling price, eliminated the residual method of allocation and expanded the disclosure requirements. The amendments are expected to be effective for revenue arrangements entered into or
materially modified in fiscal years beginning on or after June 15, 2010. We do not expect the amendments to have a material impact on our consolidated financial statements.

In December 2009, the FASB updated ASC 860, Transfers and Servicing to abolish the concept of a qualifying special-purpose entity
and the exceptional qualifying special-purpose entities. It clarifies the objective to determine whether a transferor and all of the entities included in the transferors financial statements being presented have surrendered control over the
transferred financial assets. That determination must consider the transferors continuing involvement in the transferred financial asset, including all arrangements or agreements made contemporaneously with, or in contemplation of, the
transfer, even if they were not entered into at the time of the transfer. The new pronouncement will be effective for interim and annual reporting periods beginning after November 15, 2009. We are currently evaluating the future impact that
will have on our consolidated results of operations or financial condition.



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In December 2009, the FASB amended ASC 810, Consolidation, the evaluation criteria to
identify the primary beneficiary of a variable interest entity. Additionally, it requires ongoing reassessments of whether an enterprise is the primary beneficiary of the variable interest entity. The amendment will be effective for interim and
annual reporting periods beginning after November 15, 2009. We do not expect this statement to have a material impact on our consolidated financial statements.

C. Research, Development, Patents and Licenses, Etc.

The semiconductor industry is characterized by rapid changes in technology, frequently resulting in obsolescence of process technologies
and products. As a result, effective research and development is essential to our success. We invested approximately NT$9,631 million, NT$8,274 million and NT$8,044 million (US$252 million) in 2007, 2008 and 2009, respectively, in research and
development, which represented 8.5%, 8.6% and 8.8%, respectively, of net operating revenues for such years. We believe that our continuous spending on research and development will help us maintain our position as a technological leader in the
foundry industry. As of March 31, 2010, we employed 953 professionals in our research and development division.

Our
current research and development activities seek to upgrade and integrate manufacturing technologies and processes, as well as to develop embedded memory technologies, including DRAM, SRAM, 1T-SRAM, 6T-SRAM and nonvolatile memories, and advanced
device technologies, including SOI and strained silicon. Although we emphasize firm-wide participation in the research and development process, we maintain a central research and development team primarily responsible for developing cost-effective
technologies that can serve the manufacturing needs of our customers. Monetary incentives are provided to our employees if projects result in successful patents. We believe we have a strong foundation in research and development and intend to
continue our efforts on technology developments. Our top management believes in the value of continued support of research and development efforts and intends to continue our foundry leadership position by providing customers with comprehensive
technology and SoC solutions in the industry.

D. Trend Information

Please refer to Item 5. Operating and Financial Review and ProspectsOverview for a discussion of the most significant
recent trends in our production, sales, costs and selling prices. In addition, please refer to discussions included in this Item for a discussion of known trends, uncertainties, demands, commitments and events that we believe are reasonably likely
to have a material effect on our net operating revenues, income from continuing operations, profitability, liquidity or capital resources, or that would cause reported financial information not necessarily to be indicative of future operating
results or financial condition.

E. Off-balance Sheet Arrangements

We do not generally provide letters of credit to, or guarantees for, or engage in any repurchase financing transactions with any entity
other than our consolidated subsidiaries. We have, from time to time, entered into interest rate swaps to manage our interest rate risks on our floating rate debt instruments and foreign currency forward contracts to hedge our existing assets and
liabilities denominated in foreign currencies and identifiable foreign currency purchase commitments. We do not engage in any speculative activities using derivative instruments. See Item 11. Quantitative and Qualitative Disclosure about
Market Risk.

F. Tabular Disclosure of Contractual Obligations

The following table sets forth our contractual obligations and commitments with definitive payment terms on a consolidated basis which
will require significant cash outlays in the future as of December 31, 2009.



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|                                   |  |                                  |  |                 |  |           |  |           |  |              
|---------------------------------- |  | -------------------------------- |  | --------------- |  | --------- |  | --------- |  | -------------
|                                   |  | Payments Due by Period          
|                                   |  | Total                            |  | Less than 1Year |  | 1-3 Years |  | 4-5 Years |  | After 5 Years
|                                   |  | (consolidated) (in NT$ millions)
|Long-term
debt(1)                  |  |                                  |  |                 |  |           |  |           |  |              
|Unsecured bonds                    |  | 13,973                           |  | 7,500           |  |          |  | 6,473     |  |             
|Long-term loans                    |  | 800                              |  | 34              |  | 533       |  | 233       |  |             
|Operating lease
obligations(2)     |  | 2,916                            |  | 333             |  | 564       |  | 437       |  | 1,582        
|Purchase
obligations(3)            |  | 2,851                            |  |                |  | 2,851     |  |          |  |             
|Other long-term
obligations(4)     |  | 2,365                            |  | 2,107           |  | 67        |  | 191       |  |             
|Total contractual cash obligations |  | 22,905                           |  | 9,974           |  | 4,015     |  | 7,334     |  | 1,582        



|(1) | Assuming the exchangeable bonds are paid off upon maturity.
|--- | -----------------------------------------------------------

|(2) | Represents our obligations to make lease payments to use machineries, equipments and land on which our fabs are located, primarily in the Hsinchu Science Park and the
Tainan Science Park in Taiwan, Pasir Ris Wafer Fab Park in Singapore and UMCJ.
|--- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(3) | Represents commitments for construction and purchase of raw materials. These commitments are not recorded on our balance sheet as of December 31, 2009.
|--- | -------------------------------------------------------------------------------------------------------------------------------------------------------

|(4) | Represents intellectual properties and royalties payable under our technology license agreements. The amounts of payments due under these agreements are determined
based on fixed contract amounts.
|--- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|ITEM 6. | DIRECTORS, SENIOR MANAGEMENT AND EMPLOYEES
|------- | ------------------------------------------

A. Directors and Senior Management

The following table sets forth the name, age, position, tenure and biography of each of our directors and executives as of March 31,
2010. There is no family relationship among any of these persons.

In the stockholders meeting held on June 10,
2009, our stockholders elected nine new directors, Stan Hung, Wen-Yang Chen, Ting-Yu Lin, Po-Wen Yen, Shih-Wei Sun, Paul S.C. Hsu, Chung-Laung Liu, Chun-Yen Chang and Cheng-Li Huang. The newly elected directors took their offices on June 10,
2009. The business address of our directors and executive officers is the same as our registered address.



|                   |  |     |  |                                                                                           |  |              
|------------------ |  | --- |  | ----------------------------------------------------------------------------------------- |  | -------------
|Name               |  | Age |  | Position                                                                                  |  | Years with Us
|Stan Hung          |  | 49  |  | Chairman and Director                                                                     |  | 18           
|Shih-Wei Sun       |  | 52  |  | Director (Representative of Silicon Integrated Systems Corp.) and Chief Executive Officer |  | 15           
|Wen-Yang Chen      |  | 57  |  | Director (Representative of Hsun Chieh Investment Co.) and Chief Operating Officer        |  | 30           
|Po-Wen Yen         |  | 53  |  | Director (Representative of Hsun Chieh Investment Co.) and Senior Vice President          |  | 23           
|Ting-Yu Lin        |  | 49  |  | Director                                                                                  |  | 4            
|Paul S.C.
Hsu(1)   |  | 74  |  | Independent Director                                                                      |  | 6            
|Chung-Laung
Liu(1) |  | 76  |  | Independent Director                                                                      |  | 4            
|Chun-Yen
Chang(1)  |  | 73  |  | Independent Director                                                                      |  | 4            
|Cheng-Li
Huang(1)  |  | 61  |  | Independent Director                                                                      |  | 1            
|Chitung Liu        |  | 44  |  | Chief Financial Officer                                                                   |  | 9            



|(1) | Member of the Audit Committee.
|--- | ------------------------------

Stan Hungis a director and the Chairman of our company. Mr. Hung was our CFO & Senior Vice President from 2000 to
2007. He was also the Chairman of Epitech Technology Corporation in 2007 and ITE Technology Corporation for a portion of 2008, respectively. Prior to joining United Microelectronics Corporation in 1991, Mr. Hung was a financial manager at
Optoelectronics Corporation. He is also the Chairman of Fortune Venture Capital Corporation, TLC Capital Co., Nexpower Technology Corporation, UMC New Business Investment Corporation and a Director of Epistar Corporation. Mr. Hung received a
bachelors degree in accounting from Tam Kang University in 1982.



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Shih-Wei Sun is a director and the Chief Executive Officer of our company.
Dr. Sun is a representative of Silicon Integrated Systems Corp. Dr. Sun joined us in 1995 and has been responsible for the operation of our Fabs 6A, 8A, 8D and 12A, along with Central Research & Development. Prior to joining us,
Dr. Sun worked for Motorola in the Advanced Products Research and Development Laboratory for ten years. Dr. Sun holds a Ph.D. degree in electronics materials from Northwestern University in 1986.

Wen-Yang Chenis a director of our company and currently serves as our Chief Operating Officer responsible for fab operations.
Mr. Chen is a representative of Hsun Chieh Investment Co. Prior to us, Mr. Chen worked for companies including Digital Equipment Corporation and Vishay. Mr. Chen joined us in 1980 and is responsible for the operation of our 6A, 8A,
8E, 8D and 8F Fabs, specializing in development and integration of semiconductor processes and factory management. Mr. Chen received Award of the Excellent Engineers from Chinese Institute of Engineers in 1994 and Manager Excellence Award in
2002.

Po-Wen Yen is a director of our company and currently serves as our senior vice president responsible for
12-inch operations. Mr. Yen is a representative of Hsun Chieh Investment Co. Mr. Yen joined us in 1986 and was responsible for the operation of Fabs 8A and 8C. He also served as the vice president for UMC-SG, our 300mm operation in
Singapore. In 2003, Mr. Yen received the National Manager Excellence Award from Chinese Professional Management Association. Mr. Yen earned a bachelors degree in Chemical Engineering from National Tsing Hua University and his
masters degree in chemical engineering from National Taiwan University.

Ting-Yu Lin is a director of our
company. Mr. Lin is also the chairman of Sunrox International Inc. Mr. Lin received a masters degree in international finance from Meiji University in 1993.

Paul S.C. Hsu is an independent director of our company. Professor Hsu is Far East Group Chair Professor of Management, Yuan-Ze
University, Taiwan, and the director of Taiwan Assessment and Evaluation Association. Professor Hsu is an independent director of Faraday Technology Corporation and Gintech Energy Corporation and a supervisor of Far Eastern International Bank.
Professor Hsu received a Ph.D. degree in business administration from The University of Michigan in 1974.

Chung-Laung
Liu is an independent director of our company. Professor Liu is the William M.W. Mong Honorary Chair Professor of National Tsing Hua University, Taiwan. Professor Liu is also the Chairman of Dramexchange Corporation, a supervisor of MediaTek
Incorporation, an independent director of Mototech Inc., Anpec Electronics Corporation and Powerchip semiconductor Corp., as well as a director of Macronix International Co., Ltd. Professor Liu received a doctorate degree in science from
Massachusetts Institute of Technology in 1962.

Chun-Yen Chang is an independent director of our company. Professor
Chang is an academician of Academia Sinica and a chair professor and president of National Chiao Tung University, Taiwan. Professor Chang is also an independent director of Himax Technologies, Inc. Professor Chang received a Ph.D. degree in
electrical engineering from National Chiao Tung University in 1970.

Cheng-Li Huang is an independent director of our
company. Dr. Huang was a professor of Tamkang University and served as its Comptroller. He was also the chief executive of Tamkang Accounting Education Foundation and the publisher of Journal of Contemporary Accounting. Professor Huang received
a Ph.D. degree in accounting from University of Warwick in 1999.

Chitung Liu is the Chief Financial Officer of our
company. Prior to joining our company in 2001, Mr. Liu was a managing director of UBS. Mr. Liu is also a director of Novatek Microelectronics Corp., Unimicron Corporation and Nexpower Technology Corp., as well as a supervisor of TLC
Capital Co., Ltd. Mr. Liu received an executive MBA degree from National Taiwan University in 2009.



60



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B. Compensation

The aggregate compensation paid and benefits in kind granted to our directors and supervisors in 2009 were approximately NT$22 million
(US$682 thousand). As we incurred a net loss in 2008, we did not distribute any earnings as remuneration to our directors and supervisors. See Item 10. Additional InformationB. Memorandum and Articles of AssociationDividends and
Distributions. Some of the remuneration was paid to the legal entities which some of our directors or supervisors represent. The aggregate compensation paid and benefits in kind granted to our executive officers in 2009 were approximately
NT$123 million (US$3.8 million). We did not pay any bonuses to our executive officers in 2009. Certain of our directors who also served as executive officers held stock options to purchase 14.5 million shares as of March 31, 2010.

C. Board Practices

All of our directors were elected in June 2009 for a term of three years. Neither we nor any of our subsidiaries has entered into a
contract with any of our directors by which our directors are expected to receive benefits upon termination of their employment.

Our board of directors established an audit committee in March 2005. In the annual ordinary stockholders meeting held on
June 13, 2008, we amended our articles of incorporation to introduce the mechanism of an ROC Audit Committee. See Item 10. Additional Information  B. Memorandum and Articles of Association  Directors. After the
re-election of directors in the stockholders meeting on June 10, 2009, our board of directors appointed Paul S.C. Hsu, Chung-Laung Liu, Chun-Yen Chang and Cheng-Li Huang to be the members of the audit committee. Each audit committee
member is an independent director who is financially literate with accounting or related financial management expertise. The audit committee meets as often as it deems necessary to carry out its responsibilities. Pursuant to an audit committee
charter, the audit committee has responsibility for, among other things, overseeing the qualifications, independence and performance of our internal audit function and independent auditors, and overseeing the accounting policies and financial
reporting and disclosure practices of our company. The audit committee also has the authority to engage special legal, accounting or other consultants it deems necessary in the performance of its duties.

In November 2003, the Securities and Exchange Commission approved changes to the NYSEs listing standards related to the corporate
governance practices of listed companies. Under these rules, listed foreign private issuers, like us, must disclose any significant ways in which their corporate governance practices differ from those followed by NYSE-listed U.S. domestic companies
under the NYSEs listing standards. A copy of the significant differences between our corporate governance practices and NYSE corporate governance rules applicable to U.S. companies is available on our website
http://www.umc.com/english/investors/Corp_gov_difference.asp.

D. Employees

As of March 31, 2010, we had 12,744 employees, which included 6,722 engineers, 5,594 technicians and 458 administrative staffs
performing administrative functions in Taiwan and our Singapore branch. We have in the past implemented, and may in the future evaluate the need to implement, labor redundancy plans based on the work performance of our employees.



|                     |  |                    |  |        |  |       
|-------------------- |  | ------------------ |  | ------ |  | ------
|                     |  | As of December 31,
|Employees            |  | 2007               |  | 2008   |  | 2009  
|Engineers            |  | 7,046              |  | 6,461  |  | 6,579 
|Technicians          |  | 6,067              |  | 4,734  |  | 5,290 
|Administrative Staff |  | 607                |  | 509    |  | 465   
|                     |  |                    |  |        |  |       
|Total                |  | 13,720             |  | 11,704 |  | 12,334
|                     |  |                    |  |        |  |       

Employee salaries are reviewed annually. Salaries are
adjusted based on industry standards, inflation and individual performance. As an incentive, additional bonuses in cash may be paid at the discretion of management based on the performance of individuals. In addition, except under certain
circumstances, ROC law requires us to reserve from 10% to 15% of any offerings of our new shares for employees subscription.



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Our employees participate in our profit distribution pursuant to our articles of
incorporation. Employees are entitled to receive additional bonuses based on a certain percentage of our allocable surplus income. On March 17, 2010, the board of directors proposed an employee bonus in cash in the amount of NT$965 million
(US$30 million) in relation to retained earnings in 2009.

In April 2009, we were fined NT$18,000 by the Science Park
Administration for violating the Labor Standard Act in connection with having female employees work (i) between 10:00 p.m. and 6:00 a.m. and (ii) shifted hours beyond the regular eight working hours per day without holding a proper
labor-management conference in advance and failing to pay them overtime wages. Despite that the night shift schedule of our female employees and shifted working hours beyond the regular eight working hours per day had been approved by the Science
Park Administration and included in our employment contracts, we failed to hold a labor-management meeting to approve such in accordance with the amended Labor Standard Act and the administrative ruling of the Council of Labor Affairs. In May 2009,
we were also fined NT$12,000 by the Southern Taiwan Science Park Administration for similar violations. We did not object to such fines and have held labor-management meetings for all of our fabs to approve the night shift schedule of our female
employees and shifted working hours beyond the regular eight working hours per day in accordance with relevant labor regulations.

Our employees are not covered by any collective bargaining agreements. We believe we have a good relationship with our employees.

E. Share Ownership

As of March 31, 2010, each of our directors and executive officers held shares and/or ADSs of United Microelectronics, either
directly for their own account or indirectly as the representative of another legal entity on our board of directors, except for Chung-Laung Liu, Paul S.C. Hsu, Chun-Yen Chang and Cheng-Li Huang, our independent directors. As of March 31, 2010,
none of our directors or executive officers held, for their own account, 0.1% or more of our outstanding shares. As of April 17, 2010, our most recent record date, Hsun Chieh Investment Co. held approximately 441 million of our shares,
representing approximately 3.4% of our issued shares.

We have an Employee Stock Options Plan, pursuant to which options may
be granted to our full-time regular employees, including those of our domestic and overseas subsidiaries. The exercise price for the options would be the closing price of our common shares on the Taiwan Stock Exchange on the day the options are
granted, while the expiration date for such options is 6 years from the date of its issuance. In September 2004, December 2005, October 2007 and May 2009, we obtained approvals from relevant ROC authorities for the grant of up to
150 million, 350 million, 500 million and 500 million stock options, respectively, to acquire our common shares under our Employee Stock Options Plan. In July 2004, October 2004, April 2005, August
2005, September 2005, January 2006, May 2006, August 2006, December 2007 and June 2009, we granted 57 million, 20 million, 23 million, 54 million, 52 million, 39 million, 42 million,
28 million, 500 million and 300 million stock options, respectively, to our employees, with an exercise price of 28.24, 24.28, 22.37, 29.47, 26.89, 23.17, 25.19, 24.09, 18.03 and 10.40, respectively.

According to our Employee Stock Options Plan, an option holder may exercise an increasing portion of his or her options starting two
years after the grant of the options. According to the vesting schedule, 50%, 75% and 100% of such option holders options shall vest two, three and four years after the grant of the options, respectively. Upon a voluntary termination or
termination in accordance with the ROC Labor Law, the option holder shall exercise his or her vested options within 30 days, subject to exceptions provided therein, and after the termination otherwise such options shall terminate. If termination was
due to death, the heirs of such option holder have one year starting from the date of the death to exercise his or her vested options. If termination was due to retirement or occupational casualty, the option holder or his or her heirs may exercise
all his or her options within a certain period as provided. The options are generally not transferable or pledgeable by the option holders. The total number of shares issuable upon exercise of option held by our directors and executive officers as
of March 31, 2010 was 30.5 million. The units granted to each of our directors and executive officers as a percentage of our total shares as of March 31, 2010 were less than 1%.



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|ITEM 7. | MAJOR STOCKHOLDERS AND RELATED PARTY TRANSACTIONS
|------- | -------------------------------------------------

A. Major Stockholders

The following table sets forth information known to us with respect to the beneficial ownership of our shares as of
(i) April 17, 2010, our most recent record date and (ii) as of certain record dates in each of the preceding three years, for (1) the stockholders known by us to beneficially own more than 2% of our shares and (2) all
directors and executive officers as a group. Beneficial ownership is determined in accordance with Securities and Exchange Commission rules.



|                                                         |  |                                  |  |                                      |                     |  |                                      |                     |  |                                      |                     |  |                                      |                     |  |                                      |  
|-------------------------------------------------------- |  | -------------------------------- |  | ------------------------------------ | ------------------- |  | ------------------------------------ | ------------------- |  | ------------------------------------ | ------------------- |  | ------------------------------------ | ------------------- |  | ------------------------------------ | -
|                                                         |  | As of April 17, 2010             |  |                                      | As of April 12,2009 |  |                                      | As of April 15,2008 |  |                                      | As of April 13,2007 |  |                                      | As of April 14,2006 | 
|Name of Beneficial Owner                                 |  | Number ofsharesbeneficiallyowned |  | Percentage ofsharesbeneficiallyowned |                     |  | Percentage ofsharesbeneficiallyowned |                     |  | Percentage ofsharesbeneficiallyowned |                     |  | Percentage ofsharesbeneficiallyowned |                     |  | Percentage ofsharesbeneficiallyowned |  
|                                                         |  |                                  |  |                                      |                     | 
|Hsun Chieh Investment Co.,
Ltd.(1)                       |  | 441                              |  | 3.4                                  | %                   |  | 3.3                                  | %                   |  | 3.2                                  | %                   |  | 3.2                                  | %                   |  | 3.0                                  | %
|Xilinx, Inc.                                             |  | 0                                |  | 0.0                                  | %                   |  | 0.0                                  | %                   |  | 0.0                                  | %                   |  | 0.6                                  | %                   |  | 2.2                                  | %
|Silicon Integrated Systems Corp.                         |  | 315                              |  | 2.4                                  | %                   |  | 2.4                                  | %                   |  | 2.3                                  | %                   |  | 2.3                                  | %                   |  | 2.2                                  | %
|Directors, supervisors and executive officers as a group |  | 804                              |  | 6.2                                  | %                   |  | 5.7                                  | %                   |  | 5.6                                  | %                   |  | 6.2                                  | %                   |  | 6.9                                  | %



|(1) | 36.5% owned by United Microelectronics as of March 31, 2010.
|--- | ------------------------------------------------------------

None of our major stockholders have different voting rights from those of our other stockholders. To the best of our knowledge, we are
not directly or indirectly controlled by another corporation, by any foreign government or by any other natural or legal person severally or jointly.

For information regarding our shares held or beneficially owned by persons in the United States, see Item 9. The Offer and
ListingA. Offer and Listing DetailsMarket Price Information for Our American Depositary Shares in this annual report.

B. Related Party Transactions

From time to time we have engaged in a variety of transactions with our affiliates. We generally conduct transactions with our affiliates
on an arms-length basis. The sales and purchase prices with related parties are determined through negotiation, generally based on market price.

The following table shows our aggregate ownership interest, on a consolidated basis, in major related fabless design companies that we
enter into transactions from time to time as of December 31, 2009.



|                                 |  |           
|-------------------------------- |  | ----------
|Name                             |  | Ownership%
|AMIC Technology (Taiwan), Inc.   |  | 25.87     
|Silicon Integrated Systems Corp. |  | 17.04     

We provide foundry
services to these fabless design companies on arms-length prices and terms. We derived NT$2,021 million, NT$1,462 million and NT$1,141 million (US$36 million) of our net operating revenues in 2007, 2008 and 2009, from the provision of our
foundry services to these fabless design companies.

C. Interests of Experts and Counsel

Not applicable.



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|ITEM 8. | FINANCIAL INFORMATION
|------- | ---------------------

A. Consolidated Statements and Other Financial Information

Please refer to Item 18 for a list of all financial statements filed as part of this annual report on Form 20-F.

Except as described in Item 4. Information on the CompanyB. Business OverviewLitigation, we are not currently
involved in material litigation or other proceedings that may have, or have had in the recent past, significant effects on our financial position or profitability.

As for our policy on dividend distributions, see Item 10. Additional InformationB. Memorandum and Articles of
AssociationDividends and Distributions. On June 13, 2008, our stockholders approved a cash dividend of NT$0.75 per share for an aggregate of NT$9,382,646,949, a stock dividend of NT$0.08 per share from retained earnings and NT$0.37
from capital reserve for 2008. On June 10, 2009, our stockholders approved not to distribute any stock or cash dividends for 2009. On March 17, 2010, the board of directors proposed a cash dividend of NT$0.5 per share for an aggregate of
NT$6,233,001,658.

The following table sets forth the cash dividends per share and stock dividends per share as a percentage
of shares outstanding paid during each of the years indicated in respect of shares outstanding at the end of each such year, except as otherwise noted.



|     |  |                        |  |                            |  |                                               |  |                                       
|---- |  | ---------------------- |  | -------------------------- |  | --------------------------------------------- |  | --------------------------------------
|     |  | Cash Dividend perShare |  | Stock Dividend perShare(1) |  | Total Number ofShares Issued asStock Dividend |  | Number ofOutstandingShares at Year End
|     |  | NT$                    |  | NT$                        |  |                                               |  |                                       
|1997 |  |                       |  | 3.0                        |  | 868,629,276                                   |  | 4,117,758,265                         
|1998 |  |                       |  | 2.9                        |  | 1,199,052,940                                 |  | 5,480,221,725                         
|1999 |  |                       |  | 1.5                        |  | 834,140,790                                   |  | 6,638,054,462                         
|2000 |  |                       |  | 2.0                        |  | 1,809,853,716                                 |  | 11,439,016,900                        
|2001 |  |                       |  | 1.5                        |  | 1,715,104,035                                 |  | 13,169,235,416                        
|2002 |  |                       |  | 1.5                        |  | 1,968,018,212                                 |  | 15,238,578,646                        
|2003 |  |                       |  | 0.4                        |  | 607,925,145                                   |  | 15,941,901,463                        
|2004 |  |                       |  | 0.8                        |  | 1,288,558,185                                 |  | 17,550,800,859                        
|2005 |  | 0.1029                 |  | 1.029                      |  | 1,758,736,435                                 |  | 18,856,632,324                        
|2006 |  | 0.409141420            |  | 0.10228530                 |  | 179,031,672                                   |  | 19,131,192,690                        
|2007 |  | 0.7                    |  |                           |  |                                              |  | 13,214,494,883                        
|2008 |  | 0.75                   |  | 0.45                       |  | 562,958,816                                   |  | 12,987,771,315                        
|2009 |  |                       |  |                           |  |                                              |  | 12,987,771,315                        



|(1) | We declare stock dividends in a NT dollar amount per share, but we pay the stock dividends to our stockholders in the form of shares. The amount of shares distributed
to each stockholder is calculated by multiplying the dividend declared by the number of shares held by the given stockholder, divided by the par value of NT$10 per share. Fractional shares are not issued but are paid in cash.
|--- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

B. Significant Changes

There have been no significant subsequent events following the close of the last financial year up to the date of this annual report on
Form 20-F that are known to us and require disclosure in this annual report for which disclosure was not made in this annual report.

Our consolidated net operating revenues for the three months ended March 31, 2010 was NT$27,338 million (US$856 million). Our
consolidated net operating revenues for the three months ended March 31, 2010 are not indicative of the results that may be expected for any subsequent period.



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##### Table of Contents

|ITEM 9. | THE OFFER AND LISTING
|------- | ---------------------

A. Offer
and Listing Details

Market Price Information for Our Shares

Our shares have been listed on the Taiwan Stock Exchange since July 1985. There is no public market outside Taiwan for our shares. The
table below shows, for the periods indicated, the high and low closing prices and the average daily volume of trading activity on the Taiwan Stock Exchange for our shares. The closing price for our shares on the Taiwan Stock Exchange on
April 29, 2010 was NT$16.10 per share.



|                                  |  |                             |  |                             |  |                        
|--------------------------------- |  | --------------------------- |  | --------------------------- |  | -----------------------
|                                  |  | Closing Price Per 
Share(1) |  | Average DailyTrading Volume
|                                  |  | High                        |  | Low                         |  | (in thousands ofshares)
|                                  |  | NT$                         |  | NT$                         | 
|2005                              |  | 25.20                       |  | 16.75                       |  | 84,868.00              
|2006                              |  | 22.60                       |  | 17.60                       |  | 67,133.00              
|2007                              |  | 23.45                       |  | 17.15                       |  | 53,166.86              
|2008                              |  | 20.30                       |  | 6.80                        |  | 37,521.00              
|First Quarter                     |  | 19.60                       |  | 16.80                       |  | 37,877.00              
|Second Quarter                    |  | 20.30                       |  | 16.10                       |  | 30,251.00              
|Third Quarter                     |  | 16.15                       |  | 9.58                        |  | 41,646.00              
|Fourth Quarter                    |  | 10.65                       |  | 6.80                        |  | 42,824.00              
|2009                              |  | 17.20                       |  | 7.10                        |  | 85,869.55              
|First Quarter                     |  | 12.00                       |  | 7.10                        |  | 65,283.37              
|Second Quarter                    |  | 14.95                       |  | 10.30                       |  | 135,721.42             
|Third Quarter                     |  | 16.15                       |  | 10.95                       |  | 83,937.95              
|Fourth Quarter                    |  | 17.20                       |  | 15.40                       |  | 57,964.97              
|October                           |  | 17.10                       |  | 15.40                       |  | 71,308.09              
|November                          |  | 16.95                       |  | 15.50                       |  | 55,288.71              
|December                          |  | 17.20                       |  | 15.60                       |  | 47,645.52              
|2010 (through April 29)           |  | 18.60                       |  | 15.45                       |  | 55,126.00              
|First Quarter                     |  | 18.60                       |  | 15.45                       |  | 61,199.41              
|January                           |  | 18.60                       |  | 16.05                       |  | 67,490.30              
|February                          |  | 16.65                       |  | 15.45                       |  | 81,060.61              
|March                             |  | 17.00                       |  | 15.75                       |  | 43,639.66              
|Second Quarter (through April 29) |  | 17.20                       |  | 16.10                       |  | 37,816.72              
|April (through April 29)          |  | 17.20                       |  | 16.10                       |  | 37,816.72              



Source: Taiwan Stock Exchange.



|(1) | Information has been adjusted to give effect to 758,736,435 Shares and 197,285,530 Shares issued as stock dividend and employee bonus, respectively, in August 2005;
179,031,672 Shares, NT$7,161,266,830, 45,845,444 Shares and NT$305,636,291 issued as stock dividend, cash dividend, stock employee bonus and cash employee bonus, respectively, in August 2006; NT$12,461,529,283 and NT$2,324,119,405 issued as cash
dividend and cash employee bonus, respectively, in August 2007; and 562,958,816 Shares and 114,616,567 Shares issued as stock dividend and employee bonus, respectively, in August 2008.
|--- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Market Price Information for Our American Depositary Shares

Our ADSs have been listed on the NYSE under the symbol UMC since September 19, 2000. The outstanding ADSs are identified
by the CUSIP number 910873 40 5. The table below shows, for the periods indicated, the high and low closing prices and the average daily volume of trading activity on the NYSE for our ADSs. The closing price for our ADSs on the New York Stock
Exchange on April 29, 2010 was US$3.70 per ADS. Each of our ADSs represents the right to receive five shares.



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|                                  |  |                           |  |                                 |  |          
|--------------------------------- |  | ------------------------- |  | ------------------------------- |  | ---------
|                                  |  | Closing Price Per 
ADS(1) |  | Average ADS DailyTrading Volume
|                                  |  | High                      |  | Low                             | 
|                                  |  | US$                       |  | US$                             |  |          
|2005                              |  | 4.43                      |  | 2.80                            |  | 4,279,929
|2006                              |  | 3.90                      |  | 2.82                            |  | 5,804,766
|2007                              |  | 4.48                      |  | 2.93                            |  | 6,536,888
|2008                              |  | 3.71                      |  | 1.51                            |  | 5,784,055
|First Quarter                     |  | 3.65                      |  | 2.79                            |  | 6,211,315
|Second Quarter                    |  | 3.71                      |  | 2.92                            |  | 3,943,356
|Third Quarter                     |  | 2.98                      |  | 1.75                            |  | 5,834,891
|Fourth Quarter                    |  | 2.56                      |  | 1.51                            |  | 7,166,688
|2009                              |  | 3.53                      |  | 1.65                            |  | 4,784,033
|First Quarter                     |  | 2.82                      |  | 1.65                            |  | 4,100,685
|Second Quarter                    |  | 3.53                      |  | 2.36                            |  | 6,364,041
|Third Quarter                     |  | 3.82                      |  | 2.54                            |  | 4,099,427
|Fourth Quarter                    |  | 3.88                      |  | 3.25                            |  | 5,828,853
|November                          |  | 3.83                      |  | 3.25                            |  | 4,569,295
|December                          |  | 3.88                      |  | 3.42                            |  | 5,580,123
|2010 (through April 29)           |  | 4.22                      |  | 3.34                            |  | 5,197,812
|First Quarter                     |  | 4.22                      |  | 3.34                            |  | 5,840,361
|January                           |  | 4.22                      |  | 3.51                            |  | 5,630,074
|February                          |  | 3.77                      |  | 3.34                            |  | 6,703,353
|March                             |  | 3.76                      |  | 3.46                            |  | 5,301,170
|Second Quarter (through April 29) |  | 3.89                      |  | 3.64                            |  | 3,238,040
|April (through April 29)          |  | 3.89                      |  | 3.64                            |  | 3,238,040



Sources: Bloomberg



|(1) | Information has been adjusted to give effect to 1,758,736,435 Shares and 197,285,530 Shares issued as stock dividend and employee bonus, respectively, in August 2005;
179,031,672 Shares, NT$7,161,266,830, 45,845,444 Shares and NT$305,636,291 issued as stock dividend, cash dividend, stock employee bonus and cash employee bonus, respectively, in August 2006; NT$12,461,529,283 and NT$2,324,119,405 issued as cash
dividend and cash employee bonus, respectively, in August 2007; and 562,958,816 Shares and 114,616,567 Shares issued as stock dividend and employee bonus, respectively, in August 2008.
|--- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

As of March 31, 2010, there were a total of 229,568,376 ADSs listed on the NYSE. With certain limited exceptions, holders of shares
that are not ROC persons are required to hold these shares through a brokerage or custodial account in the ROC. As of March 31, 2010, 1,147,841,880 ordinary shares were registered in the name of a nominee of JPMorgan Chase & Co., the
depositary under the deposit agreement. JPMorgan Chase & Co. has advised us that, as of March 31, 2010, 229,366,612 ADSs representing these 1,146,833,060 shares were held of record by Cede & Co., and 201,764 ADSs were held by
U.S. registered stockholders. We have no further information as to shares held or beneficially owned by U.S. persons.

B. Plan of
Distribution

Not applicable.

C. Markets

The
principal trading markets for our shares are the Taiwan Stock Exchange and the New York Stock Exchange, on which our shares trade in the form of ADSs.

D. Selling Stockholders

Not applicable.



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##### Table of Contents

E. Dilution

Not applicable.

F. Expenses of the Issue

Not applicable.



|ITEM 10. | ADDITIONAL INFORMATION
|-------- | ----------------------

A. Share
Capital

Not applicable.

B. Memorandum and Articles of Association

The following statements summarize the material elements of our capital structure and the more important rights and privileges of
stockholders conferred by ROC law and our articles of incorporation.

Objects and Purpose

The scope of business of United Microelectronics as set forth in Article 2 of our articles of incorporation, includes (i) integrated
circuits; (ii) semiconductor parts and components; (iii) parts and components of microcomputers, microprocessors, peripheral support and system products; (iv) parts and components of semiconductor memory systems products;
(v) semiconductor parts and components for digital transceiver product and system products; (vi) semiconductor parts and components for telecom system and system products; (vii) testing and packaging of integrated circuits;
(viii) mask production; (ix) research and development, design, production, sales, promotion and after-sale services related to our business; and (x) export/import trade related to our business.

Directors

The ROC
Company Act and our articles of incorporation provide that our board of directors is elected by stockholders and is responsible for the management of our business. As of March 31, 2010, our board of directors consisted of nine directors, out of
which four are independent directors. In the annual ordinary stockholders meeting held on June 11, 2007, we amended our articles of incorporation to abolish the managing director mechanism. In the annual ordinary stockholders
meeting held on June 13, 2008, we amended our articles of incorporation to introduce the mechanism of an ROC Audit Committee. The Chairman presides at all meetings of our board of directors, and also has the authority to represent our company.
The term of office for our directors is three years, and our directors are elected by our stockholders by means of cumulative voting. The amendment to our articles of incorporation on June 11, 2007 also adopts a nomination system which provides
that holders of one percent or more of the total issued and outstanding shares of our company would be entitled to submit a roster of candidates to be considered for nomination to our companys board of directors at a stockholders meeting
involving the election of directors. Pursuant to the ROC Company Act, a person may serve as our director in his or her personal capacity or as the representative of another legal entity. A legal entity that owns our shares may be elected as a
director, in which case a natural person must be designated to act as the legal entitys representative. A legal entity that is our stockholder may designate its representative to be elected as our director on its behalf. In the event several
representatives are designated by the same legal entity, any or all of them may be elected. A director who serves as the representative of a legal entity may be removed or replaced at any time at the discretion of such legal entity, and the
replacement director may serve the remainder of the term of office of the replaced director. In order to enhance corporate governance, effective from January 1, 2007, under the amended ROC Securities and Exchange Act, a legal entity stockholder
of a public company is no longer permitted to appoint representatives to be elected and/or serve as directors and supervisors at the same time unless otherwise permitted by the ROC FSC. The ROC FSC granted an exemption from this restriction if the
terms of such representatives began prior to January 1, 2007. As of March 31, 2010, three of our nine directors are representatives of other legal entities, as shown in Item 6. Directors, Senior Management and Employees  A.
Directors and Senior Management.



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According to the Company Act, a director who has a personal interest in a matter to be
discussed at the meeting of the board of directors, the outcome of which may conflict with his interests, shall abstain from voting on such matter. Our articles of incorporation, as amended on June 13, 2008, provide that the board of directors
is authorized, by taking into account of the extent of his/her/its involvement of our operation activities and the value of his/her/its contribution, to determine the compensation for each director at a comparable rate adopted by other companies of
the same industry regardless of the profit received by our company. In addition, according to our articles of incorporation, we may distribute 0.1% of the balance of our earnings after deduction of payment of all taxes and dues, deduction of any
past losses and allocation of 10% of our net income as a legal reserve as remuneration to directors and supervisors. Our articles of incorporation do not impose a mandatory retirement age limit for our directors. Furthermore, our articles of
incorporation do not impose a shareholding qualification for each director. According to our current internal Loan Procedures, as amended in our annual stockholders meeting held in June 2005, we shall not extend any loan to our directors or
our supervisors.

In order to strengthen corporate governance of companies in Taiwan, effective from January 1, 2007, the
amended ROC Securities and Exchange Act authorizes the ROC FSC, after considering certain factors, including the scale, shareholding structure and business nature of a public company, to require that a public company, such as our company, meet
certain criteria, including having at least two independent directors but not less than one fifth of the total number of directors. The amended ROC Securities and Exchange Act grants those public companies a grace period until the expiry of the
terms of the incumbent directors who took their office prior to January 1, 2007.

In addition, pursuant to the amended
ROC Securities and Exchange Act, a public company is required to either establish an audit committee, or ROC Audit Committee, or retain supervisors, provided that the ROC FSC may, after considering the scale and business nature of a public company
and other necessary situation, require the company to establish an audit committee in place of its supervisors. Currently, the ROC FSC has not promulgated such compulsory rules, and all public companies may, at their discretion, retain either an ROC
Audit Committee or supervisors. We amended our articles of incorporation in the annual ordinary stockholders meeting held on June 13, 2008, introducing the mechanism of an ROC Audit Committee. According to our latest amended articles of
incorporation, our ROC Audit Committee is composed of all independent directors and performs the duties of supervisors provided under the ROC Company Act. We held the election for all of the directors and independent directors in the annual ordinary
stockholders meeting held in June 2009. As a company is not allowed to maintain both supervisors and a ROC Audit Committee, immediately upon the inauguration of the first term of the ROC Audit Committee, we no longer retain the supervisors.

According to our articles of incorporation, as amended on June 13, 2008, we may purchase directors and officers
liability insurance for our directors, covering the liabilities incurred in relation to his/her/its operation of business and legally responsible for.

Shares

As of
December 31, 2009, our authorized share capital was NT$260 billion, divided into 26 billion shares, of which 12,987,771,315 shares were issued and 12,987,771,315 shares were outstanding. All shares presently issued are fully paid and in
registered form, and existing stockholders are not subject to any capital calls. We had no convertible bonds outstanding as of March 31, 2010. As of March 31, 2010, we had neither warrant nor option on our shares, except for the options
exercisable for 297 million common shares we granted to our employees under our Employee Stock Options Plan discussed below.

Employee
Stock Option

According to our Employee Stock Options Plan, options may be granted to our full-time regular employees,
including those of our domestic and overseas subsidiaries. In October 2003, September 2004, December 2005, October 2007 and June 2009, we obtained approval by relevant ROC authorities to grant up to 1 billion, 150 million,
150 million, 350 million, 500 million and 500 million stock options, respectively, to acquire our common shares under our Employee Stock Option Plan. According to the plan, an option holder may exercise an increasing portion of
his or her options in time starting two years after the grant of the options. According to the vesting schedule, 50%, 75% and 100% of such option holders options shall vest two, three and four years after the grant of the options,
respectively.



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The table below shows the number of options granted and outstanding and the month in which
they were granted:



|                                                        |  |               |  |             |  |               |  |            |  |               |  |            
|------------------------------------------------------- |  | ------------- |  | ----------- |  | ------------- |  | ---------- |  | ------------- |  | -----------
|                                                        |  | July2004      |  | October2004 |  | April2005     |  | August2005 |  | September2005 |  | January2006
|                                                        |  | (in millions)
|Number of Options Granted                               |  | 57            |  | 20          |  | 23            |  | 54         |  | 52            |  | 39         
|Number of Options Outstanding as of March 31, 2010      |  | 21            |  | 4           |  | 6             |  | 18         |  | 24            |  | 11         
|Shares available to option holders as of March 31, 2010 |  | 21            |  | 4           |  | 6             |  | 18         |  | 24            |  | 11         
|                                                        |  |               |  |             |  |              
|                                                        |  | May2006       |  | August2006  |  | December2007  |  | June2009   |  |               |  |            
|                                                        |  |               |  |             |  | (in millions) |  |            |  |              
|Number of Options Granted                               |  | 42            |  | 28          |  | 500           |  | 300        |  |               |  |            
|Number of Options Outstanding as of March 31, 2010      |  | 16            |  | 9           |  | 392           |  | 283        |  |               |  |            
|Shares available to option holders as of March 31, 2010 |  | 16            |  | 9           |  | 392           |  | 283        |  |               |  |            



Note: The employee stock options granted prior to August 7, 2007, the effective date of capital reduction, were adjusted in accordance with capital
reduction rate. Each option unit entitles an optionee to subscribe for about 0.7 share of the Companys common stock. The exercise price of the options was also adjusted according to the capital reduction rate. Each stock option unit granted
after August 7, 2007 remains to be subscribed for one share of the Companys common stock.

New Shares and Preemptive Rights

New shares may only be issued with the prior approval of our board of directors. If our issuance of any new shares will result
in any change in our authorized share capital, we are required under ROC law to amend our articles of incorporation and obtain approval of our stockholders in a stockholders meeting. We must also obtain the approval of, or submit a
registration with, the ROC FSC and the Science Park Administration. According to the ROC Company Act, when a company issues capital stock for cash, 10% to 15% of the issue must be offered to its employees. In addition, if a listed company intends to
offer new shares for cash, at least 10% of the issue must also be offered to the public. This percentage can be increased by a resolution passed at a stockholders meeting, which will reduce the number of new shares in which existing
stockholders may have preemptive rights. Unless the percentage of the shares offered to the public is increased by a resolution, existing stockholders of the company have a preemptive right to acquire the remaining 75% to 80% of the issue in
proportion to their existing shareholdings. According to the Corporate Merger and Acquisition Act of the ROC, as effective on February 8, 2002, and amended on May 5, 2004, if new shares issued by our company are solely for the purpose of
acquisition, share swap or spin-off, the above-mentioned restrictions, including the employee stock ownership plan, the preemptive rights of the existing stockholders and the publicity requirement of a listed company, to such issuance of new shares
may not be applied.

Stockholders

We only recognize persons registered in our register as our stockholders. We may set a record date and close our register of stockholders
for specified periods to determine which stockholders are entitled to various rights pertaining to our shares.

Transfer of Shares

Shares in registered form are transferred in book-entry form or by endorsement and delivery of the related share certificates.
Transferees must have their names and addresses registered on our register in order to assert stockholders rights against us. Our stockholders are required to file their respective specimen seals with our share registrar, Horizon Securities
Co., Ltd. Under the current ROC Company Act, a public company, such as our company, may issue individual share certificates, one master certificate or no certificate at all, to evidence common shares. Our articles of incorporation, as amended on
June 13, 2008, provide that we may deliver shares in book-entry form instead of by means of issuing physical share certificates.



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Stockholders Meetings

We are required to hold an annual ordinary stockholders meeting once every calendar year within six months from the end of each
fiscal year. Our board of directors may convene an extraordinary meeting whenever the directors deem necessary, and they must do so if requested in writing by stockholders holding no less than 3% of our paid-in share capital who have held these
shares for more than a year. At least 15 days advance written notice must be given of every extraordinary stockholders meeting and at least 30 days advance written notice must be given of every annual ordinary stockholders
meeting. Unless otherwise required by law or by our articles of incorporation, voting for an ordinary resolution requires an affirmative vote of a simple majority of those present. A distribution of cash dividends would be an example of an ordinary
resolution. The ROC Company Act also provides that in order to approve certain major corporate actions, including any amendment of our articles of incorporation, dissolution, merger or spin-off, entering into, amendment, or termination of any
contract for lease of the companys business in whole, or for entrusted business, or for joint operation with others on regular basis, the transfer of all or an essential part of the business or assets, accept all of the business or assets of
any other company which would have a significant impact in our operations, removing directors or the distribution of dividend in stock form, a special resolution shall be adopted by the holders of the majority of our shares represented at a
stockholders meeting at which holders of at least two-thirds of our issued and outstanding shares are present. However, in the case of a public company, such as our company, such resolution may be adopted by the holders of at least two-thirds
of the shares represented at a stockholders meeting at which holders of at least a majority of our issued and outstanding shares are present. However, if we are the controlling company and hold no less than 90% of our subordinate
companys outstanding shares, our merger with the subordinate company can be approved by a board resolution adopted by majority consent at a meeting with two-thirds of our directors present without stockholders approval. In addition,
according to the Corporate Merger and Acquisition Act of the ROC, if a company intends to transfer all or an essential part of its business or assets to its wholly-owned subsidiary, subject to the qualifications set forth in the said act, such
transaction only needs to be approved by majority board resolution rather than super majority vote by the stockholders meeting as required by the ROC Company Act.

Voting Rights

Each
common share is generally entitled to one vote and no voting discount will be applied. However, treasury shares and our common shares held by (i) an entity in which we own more than 50% of the voting shares or paid-in capital, or (ii) a
third party in which we and an entity controlled by us jointly own, directly or indirectly, more than 50% of the voting shares or paid-in capital are not entitled to any vote. Except as otherwise provided by law or our articles of incorporation, a
resolution can be adopted by the holders of a simple majority of the total issued and outstanding shares represented at a stockholders meeting. The quorum for a stockholders meeting to discuss the ordinary resolutions is a majority of
the total issued and outstanding shares. The election of directors by our stockholders may be conducted by means of cumulative voting or other voting mechanisms adopted in our articles of incorporation. In all other matters, a stockholder must cast
all his or her votes in the same manner when voting on any of these matters.

Our stockholders may be represented at an
ordinary or extraordinary stockholders meeting by proxy if a valid proxy form is delivered to us five days before the commencement of the ordinary or extraordinary stockholders meeting, unless such proxy has been revoked no later than
one day before the date of the stockholders meeting. Voting rights attached to our shares exercised by our stockholders proxy are subject to the proxy regulation promulgated by the ROC FSC.

Any stockholder who has a personal interest in a matter to be discussed at our stockholders meeting, the outcome of which may
impair our interests, shall not vote or exercise voting rights on behalf of another stockholder on such matter.

Holders of
our ADSs generally will not be able to exercise voting rights on the shares underlying their ADSs on an individual basis.



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Dividends and Distributions

We are not allowed under ROC law to pay dividends on our treasury shares. We may distribute dividends on our issued and outstanding shares
if we have earnings. Before distributing a dividend to stockholders, among other things, we must recover any past losses, pay all outstanding taxes and set aside a legal reserve equivalent to 10% of our net income until our legal reserve equals our
paid-in capital.

At an annual ordinary stockholders meeting, our board of directors submits to the stockholders for
their approval proposals for the distribution of dividends or the making of any other distribution to stockholders from our net income or reserves for the preceding fiscal year. Dividends are paid to stockholders proportionately. Dividends may be
distributed either in cash or in shares or a combination of cash and shares, as determined by the stockholders at such meeting.

Our articles of incorporation provide that we may distribute as remuneration to directors 0.1% of the balance of our earnings deducted
by:



| |  |  | payment of all taxes and dues;
| | - |  | ------------------------------



| |  |  | deduction of any past losses; and
| | - |  | ---------------------------------



| |  |  | allocation of 10% of our net income as a legal reserve.
| | - |  | -------------------------------------------------------

The amount of no less than 5% of the residual amount after the deductions illustrated above, plus, at discretion, any undistributed
earnings from previous years, shall be distributed as bonus to employees. Originally, the distribution of employee bonus were in the form of new shares; in the annual ordinary stockholders meeting held in June 2005, our stockholders approved
an amendment of our articles of incorporation to enable the distribution of employee bonus in the form of cash or in shares. Employees eligible for such distribution may include certain qualified employees from our subordinate companies and the
qualification of such employees is to be determined by our board of directors. The remaining amount may be distributed according to the distribution plan proposed by our board of directors based on our dividend policy, and submitted to the
stockholders meeting for approval.

In the annual ordinary stockholders meeting held in June 2005, our
stockholders approved a change of the percentage of stock dividend issued to our stockholders, if any, to no more than 80% and cash dividend, if any, to no less than 20%.

In addition to permitting dividends to be paid out of net income, we are permitted under the ROC Company Act to make distributions to our
stockholders of additional shares by capitalizing reserves, including the legal reserve and capital surplus of premiums from issuing stock and earnings from gifts received if we do not have losses. However, the capitalized portion payable out of our
legal reserve is limited to 50% of the total accumulated legal reserve, and is payable only if and to the extent the accumulated legal reserve exceeds 50% of our paid-in capital.

For information as to ROC taxes on dividends and distributions, see E. ROC Tax Considerations in this Item.

Acquisition of Our Shares by Us

An ROC company may not acquire its own common shares, except under certain exceptions provided in the ROC Company Act or the ROC
Securities and Exchange Act. Under the amendments to the ROC Company Act, which took effect on November 14, 2001, a company may purchase up to 5% of its issued common shares for transfer to employees in accordance with a resolution of its board
of directors, passed by a majority vote, at a meeting with at least two-thirds of the directors present.



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Under Article 28-2, an amendment to the ROC Securities and Exchange Act, which took effect
on July 21, 2000, we may, by a board resolution adopted by majority consent at a meeting with two-thirds of our directors present, purchase up to 10% of our issued shares on the Taiwan Stock Exchange or by a tender offer, in accordance with the
procedures prescribed by the ROC FSC, for the following purposes:



| |  |  | to transfer shares to our employees;
| | - |  | ------------------------------------



| |  |  | to transfer upon conversion of bonds with warrants, preferred shares with warrants, convertible bonds, convertible preferred shares or certificates of
warrants issued by us; and
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | if necessary, to maintain our credit and our stockholders equity; provided that the shares so purchased shall be canceled thereafter.
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------

We have from time to time announced plans, none of which was binding on us, to buy back up to a fixed
amount of our shares on the Taiwan Stock Exchange at the price range set forth in the plans. In 2007, 2008 and 2009, we purchased an aggregate of nil, 200 million and 300 million, respectively, of our shares under these plans. We did not
have any buy back program in 2007. From August 28, 2008 to October 2, 2008, we purchased 200 million of our shares for cancellation. From December 17, 2008 to February 16, 2009, we purchased 300 million of our shares on
the Taiwan Stock Exchange at an average price of $7.98 per share to transfer to our employees. Of the repurchased shares, 137 million, 97 million and 78 million shares were purchased by our employees in November 2003, December
2007 and December 2009, respectively; 556 million shares in aggregate were canceled in 2008. Between February 3, 2010 and April 2, 2010, we purchased 300 million of our shares on the Taiwan Stock Exchange at an average price of
NT$16.15 per share to transfer to our employees.

In addition, we may not spend more than the aggregate amount of the retained
earnings, the premium from issuing stock and the realized portion of the capital reserve to purchase our shares.

We may not
pledge or hypothecate any purchased shares. In addition, we may not exercise any stockholders rights attached to such shares. In the event that we purchase our shares on the Taiwan Stock Exchange, our affiliates, directors, managers and their
respective spouses and minor children and/or nominees are prohibited from selling any of our shares during the period in which we purchase our shares.

In addition to the share purchase restriction, the Company Act provides that our subsidiaries may not acquire our shares or the shares of
our majority-owned subsidiaries if the majority of the outstanding voting shares or paid-in capital of such subsidiary is directly or indirectly held by us.

Liquidation Rights

In a
liquidation, you will be entitled to participate in any surplus assets after payment of all debts, liquidation expenses and taxes proportionately.

Rights to Bring Stockholders Suits

Under the ROC Company Act, a stockholder may bring suit against us in the following events:



| |  |  | within 30 days from the date on which a stockholders resolution is adopted, a stockholder may file a lawsuit to annul a stockholders
resolution if the procedure for convening a stockholders meeting or the method of resolution violates any law or regulation or our articles of incorporation. However, if the court is of the opinion that such violation is not material and does
not affect the result of the resolution, the court may reject the stockholders claim.
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | if the substance of a resolution adopted at a stockholders meeting contradicts any applicable law or regulation or our articles of incorporation,
a stockholder may bring a suit to determine the validity of such resolution.
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



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Stockholders may bring suit against our directors under the following circumstances:



| |  |  | Stockholders who have continuously held 3% or more of our issued shares for a period of one year or longer may request in writing that the audit
committee institute an action against a director on our behalf. In case the audit committee fails to institute an action within 30 days after receiving such request, the stockholders may institute an action on our behalf. In the event stockholders
institute an action, a court may, upon the defendants motion, order such stockholders to furnish appropriate security.
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Stockholders who hold more than 3% or more of our total issued shares may institute an action with a court to remove a director of ours who has
materially violated the applicable laws or our articles of incorporation or has materially damaged the interests of our company if a resolution for removal on such grounds has first been voted on and rejected by our stockholders and such suit is
filed within 30 days of such stockholders vote.
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | In the event that any director, manager or stockholder holding more than 10% of our shares or any respective spouses or minor children and/or nominees
of any of them sells shares within six months after acquisition of such shares, or repurchases the shares within six months after the sale, we may claim for recovery of any profits realized from the sale and purchase. If our board of directors fail
to claim for recovery, any stockholder may set forth a 30-day period for our board of directors to exercise the right. In the event our directors fail to exercise the right during such 30-day period, such requesting stockholder shall have the right
to claim such recovery on our behalf. Our directors shall be jointly and severally liable for damages suffered by us as a result of their failure to exercise the right of claim.
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Other Rights of Stockholders

Under the ROC Company Act and the Corporate Merger and Acquisition Act, dissenting stockholders are entitled to appraisal rights in the
event of a spin-off or a merger and various other major corporate actions. Dissenting stockholders may request us to redeem all their shares at a then fair market price to be determined by mutual agreement. If no agreement can be reached, the
valuation will be determined by a court. Subject to applicable law, dissenting stockholders may, among other things, exercise their appraisal rights by notifying us before the related stockholders meeting and/or by raising and registering
their dissent at the stockholders meeting and also waive their voting rights.

One or more stockholders who have held
more than 3% of the issued and outstanding shares for more than one year may require our board of directors to call an extraordinary stockholders meeting by sending a written request to our board of directors.

Effective from June 24, 2005, the ROC Company Law allows stockholder(s) holding 1% or more of the total issued shares of a company
to, during the period of ten days or more prescribed by the company, submit one proposal in writing containing no more than three hundred words (in terms of Chinese characters) for discussion at the annual ordinary stockholders meeting.

Financial Statements

For a period of at least 10 days before our annual ordinary stockholders meeting, we must make available our annual financial
statements at our principal offices in Hsinchu, Taiwan, and our share registrar in Taipei for our stockholders inspection.

Transfer
Restrictions

Our directors, managers and stockholders holding more than 10% of our shares are required to report any
changes in their shareholding to us on a monthly basis. In addition, the number of shares that they can sell or transfer on the Taiwan Stock Exchange on a daily basis is limited by ROC law. Further, they may sell or transfer our shares on the Taiwan
Stock Exchange only after reporting to the ROC FSC at least three days before the transfer, provided that such reporting is not required if the number of shares transferred does not exceed 10,000 in one business day.



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C. Material Contracts

Cross License Agreement, dated as of December 7, 2005, between United Microelectronics Corporation and Freescale Semiconductor, Inc.

We entered into a five-year cross license agreement with Freescale effective as of December 7, 2005, which provides
for the cross license of certain semiconductor manufacturing patents. Under this agreement, Freescale has granted to us and our subsidiaries, nonexclusive, worldwide and non-transferable licenses, without the right to grant sublicenses (except to
sublicense subsidiaries), for manufacturing inventions of certain semiconductive devices under Freescales patents filed prior to December 31, 2010, and we have granted Freescale, royalty-free, worldwide and non-transferable licenses,
without the right to grant sublicenses (except to sublicense subsidiaries) for manufacturing inventions of certain semiconductive devices under our patents filed prior to December 31, 2010. We also agreed to pay Freescale certain royalty fees
under this agreement.

Cross License Agreement, dated as of January 1, 2006, between United Microelectronics Corporation and
International Business Machine Corporation.

We entered into a five-year cross license agreement with IBM effective as of
January 1, 2006, which provides for the cross license of certain semiconductor patents including process, topography and design. Under this agreement, IBM has granted to us and our subsidiaries, nonexclusive and non-transferable licenses,
without the right to grant sublicenses, for making our and our subsidiaries licensed products in ROC, Japan and Singapore and selling, leasing, licensing, using and/or transferring our and our subsidiaries licensed products worldwide
under IBMs patents filed prior to January 1, 2011; we granted IBM, royalty-free, worldwide and non-transferable licenses, without the right to grant sublicenses, for the term of the cross license for making, selling, leasing, licensing,
using and/or transferring IBMs licensed products under our patents filed prior to January 1, 2011. We also agreed to pay IBM certain royalty fees under this agreement. This five-year cross license agreement with IBM will terminate on
December 31, 2010, and we have entered into a new life-of-the-patents cross license agreement with IBM that will be effective until June 30, 2029, the expiration date of the last-to-expire of the licensed patents thereunder.
Under this agreement, IBM has granted to us and our subsidiaries, nonexclusive and non-transferable licenses, without the right to grant sublicenses, for making our and our subsidiaries licensed products in ROC, Japan, Singapore and PRC and
selling, leasing, licensing, using and/or transferring our and our subsidiaries licensed products worldwide under IBMs patents filed effectively prior to July 1, 2009; we granted IBM, royalty-free, worldwide and non-transferable
licenses, without the right to grant sublicenses, for the term of the cross license for making, selling, leasing, licensing, using and/or transferring IBMs licensed products under our patents filed effectively prior to July 1, 2009. We
also agreed to pay IBM certain royalty fees under this agreement.

Cross License Agreement, dated as of January 1, 2006, between
United Microelectronics Corporation and Renesas Technology Corp.

We entered into a five-year cross license agreement with
Renesas effective as of January 1, 2006, which provides for the cross license of certain semiconductor patents including process and design. Under this agreement, Renesas has granted to us and our subsidiaries, nonexclusive and non-transferable
licenses, without the right to grant sublicenses, for making, selling, importing or otherwise disposing of our and our subsidiaries licensed products under Renesass patents filed prior to December 31, 2010; we granted Renesas
royalty-free, worldwide and non-transferable licenses, without the right to grant sublicenses, for the term of the cross license for making, selling, using or otherwise disposing of Renesas licensed products under our patents filed prior to
December 31, 2010. We also agreed to pay Renesas certain royalty fees under this agreement. Under the terms of the agreement, the cross license cannot be assigned without our consent. Due to the merger of Renesas with NEC Electronics Company on
April 1, 2010, Renesas requested our consent to assign the cross license to Renesas Electronics Corp., the successor company of the merger. We are now in discussions with Renesas on this request.



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Settlement and Cross License Agreement, dated as of April 1, 2009, between United Microelectronics
Corporation and LSI Corporation (and its subsidiary Agere)

We entered into a multi-year cross license agreement with LSI
effective as of May 10, 2007 through December 31, 2012, which provides for the cross license of certain semiconductor patents, including process and design patents. Under this agreement, LSI granted to us and our subsidiaries, nonexclusive
and non-transferable licenses, without the right to grant sublicenses, for making, selling, importing or otherwise disposing of our and our subsidiaries licensed products under LSIs patents filed prior to April 1, 2009. We granted
LSI, royalty-free, worldwide and non-transferable licenses, without the right to grant sublicenses, for making, selling, using or otherwise disposing of LSI licensed products under our patents filed prior to April 1, 2009. The parties
further agreed not to assert patent claims against each other prior to December 31, 2012. We also agreed to pay LSI certain royalty fees under this agreement.

Major Long-term Supply and Marketing Agreements

We have entered into long-term distribution, sales, service and marketing agreements with the following companies: UMC Group (USA), an
agreement effective from January 1, 2010 through December 3, 2012; United Microelectronics (Europe) B.V., an agreement effective from January 1, 2008 through December 3, 2012; UMCJ, an agreement effective as of January 1,
2008 through December 3, 2012. We also entered into a long-term supply agreement with Shin-Etsu Handotai Taiwan Co., Ltd., or Shin-Etsu Handotai, under which Shin-Etsu Handotai agrees to provide us with 150mm, 200mm and 300mm raw wafer
materials for an indefinite period unless the agreement is otherwise terminated.

Major Construction Agreements

We entered into various major agreements with construction and engineering companies, such as Excelair Cond. Co., Ltd., Yih-shin
Construction Co., Ltd., Shifuh Enterprise Co. Ltd. and Taikisha (Taiwan) Ltd. to expand our semiconductor facilities in the Tainan Science Park. These agreements were effective from January 1, 2008 to February 10, 2010, and the total
contractual amount exceeded NT$130 million.

Major Long-term Loan Agreements

We entered into a long-term secured loan agreement effective from November 28, 2008 through November 28, 2018 with the Bank of
Taiwan. We pledged the equipment at our semiconductor facilities in Tainan Science Park as collateral in an amount up to NT$4.8 billion for the loan.

D. Exchange Controls

Foreign
Investment and Exchange Controls in Taiwan

We have extracted from publicly available documents the information
presented in this section. Please note that citizens of the Peoples Republic of China and entities organized in the Peoples Republic of China are subject to special ROC laws, rules and regulations, which are not discussed in this
section.

General

Historically, foreign investments in the securities market of Taiwan were restricted. However, commencing in 1983, the Taiwan government
has from time to time enacted legislation and adopted regulations to make foreign investment in the Taiwan securities market possible. Initially, only overseas investment trust funds of authorized securities investment trust enterprises established
in Taiwan were permitted to invest in the Taiwan securities market. Since January 1, 1991, qualified foreign institutional investors are allowed to make investments in the Taiwan public securities market. Since March 1, 1996, non-resident
foreign institutional and individual investors, called general foreign investors, are permitted to make direct investments in the Taiwan public securities market. On September 30, 2003, the Executive Yuan amended the Regulations
Governing Investment in Securities by Overseas Chinese and Foreign Nationals, or the Investment Regulations, under which the Qualified Foreign Institutional Investors, or QFII, designations have been abolished and the restrictions on
foreign portfolio investors have been revised. According to the Investment Regulations, Foreign Institutional Investor, or FINI, means an entity which is incorporated under the laws of countries other than the ROC or the branch of a
foreign entity which is established within the territory of the ROC, and Foreign Individual Investor, or FIDI, means an overseas Chinese or a foreign natural person. In addition, the Investment Regulations also lifted some restrictions
and simplified procedures of investment application.



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On April 30, 2009, the ROC FSC promulgated regulations allowing QDIIs under PRC
regulations and certain other PRC persons to invest in the securities of ROC companies. However, prior approval from the Investment Commission of the ROC Ministry of Economic Affairs is required for a PRC persons ownership of more than 10% of
the issued and outstanding shares of a listed ROC company.

Foreign Ownership Limitations

Foreign ownership of the issued share capital in a Taiwan Stock Exchange-listed company or a GreTai Securities Market-listed company has
been limited to 50% in the past. Since December 30, 2000, the 50% limit has been lifted. Foreign investors can now hold such investments without any foreign ownership percentage limitations, unless the law has imposed restrictions otherwise.

Capital remitted into Taiwan under the foreign investment guidelines may be repatriated at any time without the approval of
the ROC FSC. Capital gains and income on investments may also be repatriated at any time.

Foreign Investors

Each FINI who wishes to invest directly in the ROC securities market is required to register with the Taiwan Stock Exchange and obtain an
investment identification number if the FINI is a non-resident and has no sub-investment accounts in the ROC. Except for some restrictions imposed by specific laws and regulations, the individual and aggregate foreign ownership of the issued share
capital in a Taiwan Stock Exchange-listed company or a GreTai Securities Market-listed company is not restricted. An ROC custodian for a non-resident FINI is required to submit to the CBC, and the Taiwan Stock Exchange a report of trading
activities, inward and outward remittance of capital and status of assets under custody and other matters every month.

Each
FIDI who wishes to invest directly in the ROC securities market is also required to register with the Taiwan Stock Exchange and obtain an investment identification number. The ROC FSC has lifted the limitation on the amount of investment in the ROC
securities market for a non-resident FIDI.

Foreign Investment Approval

Foreign investors (both institutional and individual) who wish to make direct investments in the shares of ROC companies are required to
submit a foreign investment approval application to the Investment Commission of the ROC MOEA, or other government authority and enjoy benefits granted under the Statute for Foreigners Investment and the Statute for Overseas
Chineses Investment. The Investment Commission of the ROC MOEA or other government authority reviews each foreign investment approval application and approves or disapproves the application after consultation with other governmental agencies,
if necessary. Any non-ROC person possessing a foreign investment approval may repatriate annual net profits and interests attributable to an approved investment. Investment capital and capital gains attributable to the investment may be repatriated
with approval of the Investment Commission of the ROC MOEA or other government authority.

In addition to the general
restrictions against direct investments by foreign investors in ROC companies, foreign investors are currently prohibited from investing in certain prohibited industries in Taiwan under the Negative List. The prohibition on direct
foreign investment in the prohibited industries in the Negative List is absolute in the absence of a specific exemption from the application of the Negative List. Under the Negative List, some other industries are restricted so that foreign
investors may directly invest only up to a specified level and with the specific approval of the relevant authority responsible for enforcing the legislation which the Negative List is intended to implement. Our business is not a restricted industry
under the Negative List.



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Exchange Controls

Taiwans Foreign Exchange Control Statute and regulations provide that all foreign exchange transactions must be executed by banks
designed to handle foreign exchange transactions by the Ministry of Finance and by the CBC. Current regulations favor trade-related foreign exchange transactions. Consequently, foreign currency earned from exports of merchandise and services may now
be retained and used freely by exporters. All foreign currency needed for the importation of merchandise and services may be purchased from the designated foreign exchange banks.

Aside from trade-related foreign exchange transactions, ROC companies and residents may remit to and from Taiwan foreign currencies of up
to US$50 million (or its equivalent) and US$5 million, (or its equivalent) respectively in each calendar year. These limits apply to remittances involving a conversion between NT dollars and U.S. dollars or other foreign currencies. A requirement is
also imposed on all private enterprises to register all medium and long-term foreign debt with the CBC.

In addition, foreign
currency earned from or needed to be paid for direct investment or portfolio investments, which are approved by the competent authorities, may be retained or sold by the investors or purchased freely from the designated bank.

Aside from the transactions discussed above, a foreign person without an alien resident card or an unrecognized foreign entity may remit
to and from Taiwan foreign currencies of up to US$100,000 per remittance without obtaining prior approval or permit if required documentation is provided to Taiwan authorities. This limit applies only to remittances involving a conversion between NT
dollars and U.S. dollars or other foreign currencies.

Depositary Receipts

In April 1992, the ROC SFB (the predecessor of the ROC FSC) began allowing ROC companies listed on the Taiwan Stock Exchange to sponsor
the issuance and sale of depositary receipts evidencing depositary shares. Notifications for these issuances are still required. In December 1994, the Ministry of Finance began allowing companies whose shares are traded on the GreTai Securities
Market to sponsor the issuance and sale of depositary receipts evidencing depositary shares. On October 24, 2002, the ROC SFB began allowing public companies that are not listed on the Taiwan Stock Exchange or the GreTai Securities Market to
sponsor the issuance and sale of depositary receipts by way of private placements outside the ROC.

A holder of depositary
shares wishing to withdraw common shares underlying depositary shares is required to appoint a local agent or representative with qualifications set forth by the ROC FSC to, among other things, open a securities trading account with a local
brokerage firm, pay ROC taxes, remit funds, and exercise stockholders right. In addition, the withdrawing holder is also required to appoint a custodian bank with qualifications set forth by the ROC FSC to hold the securities in safekeeping,
make confirmations, settle trades and report all relevant information. Without making this appointment and the opening of accounts, the withdrawing holder would be unable to subsequently sell the common shares withdrawn from a depositary receipt
facility on either the Taiwan Stock Exchange or the GreTai Securities Market.

After the issuance of a depositary share, a
holder of the depositary share may immediately, comparing to a three-month waiting period restriction which was lifted in 2003, request the depositary issuing the depositary share to cause the underlying common shares to be sold in the ROC or to
withdraw the common shares represented by the depositary receipt and deliver the common shares to the holder. On April 30, 2009 and July 3, 2009, the ROC Executive Yuan approved the Regulations Governing Securities Investment and Futures
Trading in Taiwan by Mainland Area Investors and the Regulations Governing Investment in Taiwan by Mainland Area Persons, respectively, under which qualified PRC persons are permitted to invest in Taiwan companies under limited circumstances.
However, prior approval from the Investment Commission of the ROC Ministry of Economic Affairs is required for a qualified PRC persons ownership of more than 10% of the issued and outstanding shares of a listed ROC company.



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No deposits of shares may be made in a depositary receipt facility and no depositary
receipts may be issued against deposits without specific ROC FSC approval, unless they are:



| | (1) | stock dividends;
| | --- | ----------------



| | (2) | free distributions of common shares;
| | --- | ------------------------------------



| | (3) | due to the exercise by a holder of his or her preemptive rights in the event of capital increases for cash; or
| | --- | --------------------------------------------------------------------------------------------------------------



| | (4) | permitted under the deposit agreement and the custody agreement, due to the direct purchase of shares or purchase through the depositary in the domestic market or the
surrender of shares under the possession of investors and then delivery of such shares to the custodian for deposit in the depositary receipt facility, provided that the total number of depositary receipts outstanding after an issuance cannot exceed
the number of issued depositary shares previously approved by the ROC FSC in connection with the offering plus any depositary shares issued pursuant to the events described in (1), (2) and (3) above. These issuances may only be made to the
extent previously issued depositary shares have been withdrawn.
| | --- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

A depositary may convert New Taiwan dollars
from the proceeds of the sale of common shares or cash distributions received into other currencies, including U.S. dollars. A depositary must obtain foreign exchange approval from the CBC on a payment-by-payment basis for conversion into New Taiwan
dollars of subscription payments for rights offerings or conversion into foreign currencies from the proceeds from the sale of subscription rights for new common shares. It is expected that the CBC will grant this approval as a routine matter.

A holder of depositary shares may convert NT dollars into other currencies from proceeds from the sale of any underlying
common shares. Proceeds from the sale of the underlying common shares withdrawn from the depositary receipt facility may be used for reinvestment in securities listed on both the Taiwan Stock Exchange and the GreTai Securities Market, provided that
the investor designates a local securities firm or financial institution as agent to open an NT dollar bank account in advance.

E. Taxation

ROC Tax
Considerations

The following summarizes the principal ROC tax consequences of owning and disposing of the ADSs or shares
to a holder of ADSs or shares that is not a resident of the ROC. An individual holder will be considered as not a resident of the ROC for the purposes of this section if he or she is not physically present in Taiwan for 183 days or more during any
calendar year, except if the individual holder has both ROC and non-ROC nationalities and has a registered address in the ROC. An entity holder will be considered as not a resident of the ROC if it is organized under the laws of a jurisdiction other
than Taiwan and has no fixed place of business or other permanent establishment or business agent in the ROC. Prospective purchasers of ADSs or shares should consult their own tax advisors concerning the tax consequences of owning ADSs or shares in
the ROC and any other relevant taxing jurisdiction to which they are subject.

Dividends

Dividends, whether in cash or shares, declared by us out of retained earnings and paid out to a holder that is not an ROC resident in
respect of shares represented by ADSs are subject to ROC withholding tax at the time of distribution. Effective from January 1, 2010, the rate of withholding for non-resident individuals and non-resident entities is 20% of the amount of the
distribution in the case of cash dividends or of the par value of the shares distributed in the case of stock dividends. Under current practice adopted by tax authorities, a 20% withholding rate is applied to a non-resident ADS holder without
requiring the holder to apply for or obtain foreign investment approval. As discussed in the section Tax Reform below, certain of our retained earnings will be subject to a 10% undistributed retained earnings tax. To the extent
dividends are paid out of retained earnings which have been subject to the retained earnings tax, the amount of such tax will be used by us to offset a non-residents withholding tax liability on such dividend. Consequently, the effective rate
of withholding on dividends paid out of retained earnings previously subject to the retained earnings tax may be less than 20%. There is no withholding tax with respect to stock dividends declared out of our capital reserve.



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Capital Gains

Under current ROC law, gains realized on ROC securities transactions are primarily exempt from income tax. However, subject to the AMT
Act, gains realized from various securities transactions by an ROC-resident entity and from some securities transactions by an ROC-resident individual, such as securities not listed on the Taiwan Stock Exchange or the GreTai Securities Market, shall
be calculated as taxable income for the purpose of the AMT and may further be subject to income tax. In addition, transfers of ADSs by non-resident holders are not regarded as sales of ROC securities and, as a result, any gains derived therefrom are
currently not subject to ROC income tax.

Securities Transaction Tax

The ROC government imposes a securities transaction tax that will apply to sales of shares, but not to sales of ADSs. The transaction tax,
which is payable by the seller, is generally levied on sales of shares at the rate of 0.3% of the sales proceeds. Withdrawals of our shares from our depositary facility are not subject to the ROC securities transaction tax.

Preemptive Rights

Distribution of statutory preemptive rights for shares in compliance with the ROC Company Act is not subject to ROC tax. Proceeds derived
from sales of statutory preemptive rights evidenced by securities by a non-resident holder may be subject to the ROC securities transaction tax, currently at the rate of 0.3% of the gross amount received. Proceeds derived from sales of statutory
preemptive rights which are not evidenced by securities are subject to capital gains tax at the rate of 20% of the gains realized for non-ROC entity holders and non-ROC individual holders. Subject to compliance with the ROC law, we have sole
discretion to determine whether statutory preemptive rights are evidenced by securities or not.

Estate Taxation and Gift Tax

ROC estate tax is payable on any property within the ROC of a deceased individual who is a non-resident individual and ROC
gift tax is payable on any property located within the ROC donated by any such person. Under the newly amended Articles 13 and 19 of the ROC Estate and Gift Tax Act, which became effective on January 23, 2009, estate tax is currently payable at
the rate of 10% and gift tax is payable at the rate of 10%. Under ROC estate and gift tax laws, the shares will be deemed located in the ROC irrespective of the location of the owner. It is unclear whether a holder of ADSs will be considered to own
shares for this purpose.

Tax Treaties

The Republic of China does not have an income tax treaty with the United States. On the other hand, the Republic of China has income tax
treaties with Indonesia, Singapore, South Africa, Australia, Vietnam, New Zealand, Malaysia, Macedonia, Swaziland, the Netherlands, the United Kingdom, Gambia, Senegal, Sweden, Belgium, Denmark and Israel which may limit the rate of Republic of
China withholding tax on dividends paid with respect to common shares in Taiwan companies. It is unclear whether a non-ROC holder of ADSs will be considered to own shares for the purposes of such treaties. Accordingly, a holder of ADSs who is
otherwise entitled to the benefit of a treaty should consult its own tax advisors concerning eligibility for benefits under the treaty with respect to the ADSs.



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Tax Reform

In order to increase Taiwans competitiveness, an amendment to the ROC Income Tax law was enacted on January 1, 1998, to
integrate the corporate income tax and the stockholder dividend tax with the aim of eliminating the double taxation effect for resident stockholders of Taiwanese corporations.

Under this amendment, a 10% retained earnings tax will be imposed on a company for its after-tax earnings generated after January 1,
1998 which are not distributed in the following year. The retained earnings tax so paid will further reduce the retained earnings available for future distribution. When the company declares dividends out of those retained earnings, up to a maximum
amount of 10% of the declared dividends will be credited against the 20% withholding tax imposed on the non-resident holders of its shares.

U.S. Federal Income Tax Considerations For U.S. Persons

The following is a summary of certain U.S. federal income tax consequences for beneficial owners of our shares or ADSs, that hold the
shares or ADSs as capital assets and that are U.S. holders that are not citizens of the ROC, do not have a permanent establishment in the ROC and are not physically present in the ROC for 183 days or more within a calendar year. You are a U.S.
holder if you are, for U.S. federal income tax purposes, any of the following:



| |  |  | an individual citizen or resident of the United States;
| | - |  | -------------------------------------------------------



| |  |  | a corporation (or other entity treated as a corporation for U.S. federal income tax purposes) created or organized in or under the laws of the United
States, any state thereof or the District of Columbia;
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| |  |  | an estate the income of which is subject to U.S. federal income taxation regardless of its source;
| | - |  | --------------------------------------------------------------------------------------------------



| |  |  | a trust that is subject to the primary supervision of a court within the United States and that has one or more U.S. persons with the authority to
control all substantial decisions of the trust; or
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | a trust that has a valid election in effect under applicable U.S. Treasury regulations to be treated as a U.S. person.
| | - |  | ----------------------------------------------------------------------------------------------------------------------

This summary is based on the provisions of the Internal Revenue Code of 1986, as amended, or the Code, and regulations, rulings and
judicial decisions thereunder as of the date hereof, and such authorities may be replaced, revoked or modified so as to result in U.S. federal income tax consequences different from those discussed below. It is for general purposes only and you
should not consider it to be tax advice. In addition, it is based in part on representations by the depositary and assumes that each obligation under the deposit agreement and any related agreement will be performed in accordance with its terms.
This summary does not represent a detailed description of all the U.S. federal income tax consequences to you in light of your particular circumstances and does not address the effects of any state, local or non-U.S. tax laws (or other U.S. federal
tax consequences, such as U.S. federal estate or gift tax consequences). In addition, it does not represent a detailed description of the U.S. federal income tax consequences applicable to you if you are subject to special treatment under the U.S.
federal income tax laws, including if you are:



| |  |  | a dealer in securities or currencies;
| | - |  | -------------------------------------



| |  |  | a trader in securities if you elect to use a mark-to-market method of accounting for your securities holdings;
| | - |  | --------------------------------------------------------------------------------------------------------------



| |  |  | a financial institution or an insurance company;
| | - |  | ------------------------------------------------



| |  |  | a tax-exempt organization;
| | - |  | --------------------------



| |  |  | a regulated investment company;
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| |  |  | a real estate investment trust;
| | - |  | -------------------------------



| |  |  | a person liable for alternative minimum tax;
| | - |  | --------------------------------------------



| |  |  | a person holding shares or ADSs as part of a hedging, integrated or conversion transaction, constructive sale or straddle;
| | - |  | --------------------------------------------------------------------------------------------------------------------------



| |  |  | a partnership or other pass-through entity for U.S. federal income tax purposes;
| | - |  | --------------------------------------------------------------------------------



| |  |  | a person owning, actually or constructively, 10% or more of our voting stock; or
| | - |  | --------------------------------------------------------------------------------



| |  |  | a U.S. holder whose functional currency is not the U.S. dollar.
| | - |  | -----------------------------------------------------------------

We cannot assure you that a later change in law will not alter significantly the tax considerations that we describe in this summary.

If a partnership holds our shares or ADSs, the tax treatment of a partner will generally depend upon the status of the
partner and the activities of the partnership. If you are a partner of a partnership holding our shares or ADSs, you should consult your tax advisor.

You should consult your own tax advisor concerning the particular U.S. federal income tax consequences to you of the ownership and
disposition of the shares or ADSs, as well as the consequences to you arising under the laws of any other taxing jurisdiction.

In general, for U.S. federal income tax purposes, a U.S. person who is the beneficial owner of an ADS will be treated as the owner of the
shares underlying its ADS. Accordingly, deposits or withdrawals of shares by U.S. holders for ADSs generally will not be subject to U.S. federal income tax. However, the U.S. Treasury has expressed concerns that intermediaries in the chain of
ownership between the holder of an ADS and the issuer of the security underlying the ADS may be taking actions that are inconsistent with the claiming of foreign tax credits by the U.S. holders of ADSs. Such actions would also be inconsistent with
the claiming of the reduced rate of tax, described below, applicable to dividends received by certain non-corporate holders. Accordingly, the analysis of the creditability of ROC taxes and the availability of the reduced tax rate for dividends
received by certain non-corporate holders, each described below could be affected by actions taken by intermediaries in the chain of ownership between the holder of an ADS and our company.

Taxation of Dividends

Except as discussed below with respect to the passive foreign investment company rules, the amount of distributions (including net amounts
withheld in respect of ROC withholding taxes) you receive on your shares or ADSs (other than certain pro rata distributions of shares to all stockholders) will generally be treated as dividend income to you if the distributions are made from our
current and accumulated earnings and profits as calculated according to U.S. federal income tax principles. In determining the net amounts withheld in respect of ROC taxes, any reduction in the amount withheld on account of an ROC credit in respect
of the 10% retained earnings tax imposed on us is not considered a withholding tax and will not be treated as distributed to you or creditable by you against your U.S. federal income tax. Such income will be includible in your gross income as
ordinary income on the day you actually or constructively receive it, which in the case of an ADS will be the date actually or constructively received by the depositary. The amount of any distribution of property other than cash will be the fair
market value of such property on the date it is distributed. You will not be entitled to claim a dividend received deduction with respect to distributions you receive from us.

With respect to non-corporate U.S. holders, certain dividends received from a qualified foreign corporation in taxable years beginning
prior to January 1, 2011 may be subject to reduced rates of taxation. A foreign corporation is treated as a qualified foreign corporation with respect to dividends paid by that corporation on shares (or ADSs backed by such shares) that are
readily tradable on an established securities market in the United States. U.S. Treasury Department guidance indicates that our ADSs (which are listed on the NYSE), but not our shares, are readily tradable on an established securities market in the
United States. Thus, we do not believe that dividends we pay on our shares that are not backed by ADSs currently meet the conditions required for these reduced tax rates. Moreover, there can be no assurance that our ADSs will continue to be readily
tradable on an established securities market in later years. Non-corporate U.S. holders that do not meet a minimum holding period requirement during which they are not protected from the risk of loss or that elect to treat the dividend income as
investment income pursuant to Section 163(d)(4) of the Code will not be eligible for the reduced rates of taxation regardless of our status as a qualified foreign corporation. In addition, the rate reduction will not apply to
dividends if the recipient of a dividend is obligated to make related payments with respect to positions in substantially similar or related property. This disallowance applies even if the minimum holding period has been met. Non-corporate U.S.
holders will also not be eligible for the reduced rates of taxation on dividends if we are a passive foreign investment company in the taxable year in which such dividends are paid or in the preceding taxable year. Holders should consult their own
tax advisors regarding the application of these rules given their particular circumstances.



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The amount of any dividend paid in NT dollars will equal the U.S. dollar value of the NT
dollars you receive (calculated by reference to the exchange rate in effect on the date you actually or constructively receive the dividend, which in the case of an ADS will be the date actually or constructively received by the depositary),
regardless of whether the NT dollars are actually converted into U.S. dollars. If the NT dollars received as a dividend are not converted into U.S. dollars on the date of receipt, you will have a basis in the NT dollars equal to their U.S. dollar
value on the date of receipt. Any gain or loss you realize if you subsequently sell or otherwise dispose of the NT dollars will be ordinary income or loss from sources within the United States for foreign tax credit limitation purposes.

Subject to certain limitations under the Code, you may be entitled to a credit or deduction against your U.S. federal income taxes for
the net amount of any ROC taxes that are withheld from dividend distributions made to you. The election to receive a credit or deduction must be made annually, and applies to all foreign taxes for the applicable tax year. The limitation on foreign
taxes eligible for credit is calculated separately with respect to specific classes of income. For this purpose, dividends we pay with respect to shares or ADS will generally be considered passive category income from sources outside the United
States. Furthermore, you will not be allowed a foreign tax credit for foreign taxes imposed on dividends paid on shares or ADSs if you (1) have held the shares or ADSs for less than a specified minimum period during which you are not protected
from risk of loss, or (2) are obligated to make payments related to the dividends. The rules governing the foreign tax credit are complex. We therefore urge you to consult your tax advisors regarding the availability of the foreign tax credit
under your particular circumstances.

To the extent that the amount of any distribution you receive exceeds our current and
accumulated earnings and profits for a taxable year, as determined under U.S. federal income tax principles, the distribution will first be treated as a tax-free return of capital, causing a reduction in your adjusted basis in the shares or ADSs and
thereby increasing the amount of gain, or decreasing the amount of loss, you will recognize on a subsequent disposition of the shares or ADSs. The balance in excess of adjusted basis, if any, will be taxable to you as capital gain recognized on a
sale or exchange. However, we do not expect to keep earnings and profits in accordance with U.S. federal income tax principles. Therefore, you should expect that a distribution will generally be treated as a dividend (as discussed above).

It is possible that pro rata distributions of shares or ADSs to all stockholders may be made in a manner that is not subject
to U.S. federal income tax. In the event that such distributions are tax-free, the basis of any new shares or ADSs so received will generally be determined by allocating the U.S. holders basis in the old shares or ADSs between the old shares
or ADSs and the new shares or ADSs, based on their relative fair market values on the date of distribution. For U.S. tax purposes, any such tax-free share or ADS distribution and any distributions in excess of current and accumulated earnings and
profits generally would not result in foreign source income to you. Consequently, you may not be able to use the foreign tax credit associated with any ROC withholding tax imposed on such distributions unless you can use the credit against U.S. tax
due on other foreign source income in the appropriate category for foreign tax credit purposes. You should consult your own tax advisors regarding all aspects of the foreign tax credit.



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Taxation of Capital Gains

Except as discussed below with respect to the passive foreign investment company rules, when you sell or otherwise dispose of your shares
or ADSs, you will generally recognize capital gain or loss in an amount equal to the difference between the U.S. dollar value of the amount realized for the shares or ADSs and your basis in the shares or ADSs, determined in U.S. dollars. If you are
an individual, and the shares or ADSs being sold or otherwise disposed of are capital assets that you have held for more than one year, your gain recognized will be eligible for reduced rates of taxation. Your ability to deduct capital losses is
subject to limitations. Any gain or loss you recognize will generally be treated as U.S. source gain or loss.

If you pay any
ROC securities transaction tax, such tax is not treated as an income tax for U.S. federal income tax purposes, and therefore will not be a creditable foreign tax for U.S. federal income tax purposes. However, subject to limitations under the Code,
such tax may be deductible. You are urged to consult your tax advisors regarding the U.S. federal income tax consequences of these taxes.

Passive Foreign Investment Company

Based on the current and projected composition of our income and valuation of our assets, including goodwill, we do not believe that we
are currently (or that we were in 2008) a passive foreign investment company, or PFIC, and we do not expect to become one in the future, although there can be no assurance in this regard.

In general, a company is considered a PFIC for any taxable year if either:



| |  |  | at least 75% of its gross income is passive income, which generally includes income derived from certain dividends, interest, royalties and rents
(other than royalties and rents derived in the active conduct of a trade or business and not derived from a related person), annuities or property transactions; or
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | at least 50% of the value of its assets is attributable to assets that produce or are held for the production of passive income.
| | - |  | --------------------------------------------------------------------------------------------------------------------------------

The 50% of value test is based on the average of the value of our assets for each quarter during the
taxable year. If we own at least 25% by value of another companys stock, we will be treated, for purposes of the PFIC rules, as owning our proportionate share of the assets and receiving our proportionate share of the income of that company.

In determining that we do not expect to be a PFIC, we are relying on our projected capital expenditure plans and projected
revenues for the current year and for future years. In addition, our determination is based on a current valuation of our assets, including goodwill. In calculating goodwill, we have valued our total assets based on our total market value, which is
based on the market value of our shares and ADSs and is subject to change. In addition, we have made a number of assumptions regarding the allocation of goodwill to active and passive assets. We believe our valuation approach is reasonable. However,
it is possible that the Internal Revenue Service will challenge the valuation or allocation of our goodwill, which may also result in us being classified as a PFIC.

In addition, the determination of whether we are a PFIC is made annually. Accordingly, it is possible that we may become a PFIC in the
current or any future taxable year due to changes in our asset or income composition. Because we have valued our goodwill based on the market value of our shares, a decrease in the price of our shares may also result in our becoming a PFIC.



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If we are a PFIC for any taxable year during which you hold shares or ADSs, you will be
subject to special tax rules with respect to any excess distribution that you receive and any gain you realize from a sale or other disposition (including a pledge) of shares or ADSs. Distributions you receive in a taxable year that are
greater than 125% of the average annual distributions you received during the shorter of the three preceding taxable years or your holding period for shares or ADSs will be treated as excess distributions. Under these special tax rules:



| |  |  | the excess distribution or gain will be allocated ratably over your holding period for shares or ADSs;
| | - |  | ------------------------------------------------------------------------------------------------------



| |  |  | the amount allocated to the current taxable year, and any taxable year prior to the first taxable year in which we were a PFIC, will be treated as
ordinary income; and
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| |  |  | the amount allocated to each other year will be subject to tax at the highest tax rate in effect for that year and the interest charge generally
applicable to underpayments of tax will be imposed on the resulting tax attributable to each such year.
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If
you hold shares or ADSs in any year in which we are a PFIC, you are required to file Internal Revenue Service Form 8621.

If
we are a PFIC for any taxable year and any of our non-U.S. subsidiaries is also a PFIC, a U.S. Holder would be treated as owning a proportionate amount (by value) of the shares of the lower-tier PFIC for purposes of the application of these rules.
You are urged to consult your tax advisors about the application of the PFIC rules to any of our subsidiaries.

Under certain
circumstances, a U.S. holder, in lieu of being subject to the PFIC rules discussed above, may make an election to include gain on the stock of a PFIC as ordinary income under a mark-to-market method provided that such stock is regularly traded on a
qualified exchange. Under this method, any difference between the stocks fair market value and its adjusted basis at the end of the year is accounted for by either an inclusion in income or, subject to limitations, a deduction from income, as
described below. Under current U.S. Treasury Department guidance, the mark-to-market election may be available to holders of ADSs because the ADSs are listed on the NYSE, which constitutes a qualified exchange, although there can be no assurance
that the ADSs will be regularly traded for purposes of the mark-to-market election. You should also note that only the ADSs and not the shares are listed on the NYSE. Our shares are listed on the Taiwan Stock Exchange, which must meet
certain trading, listing, financial disclosure and other requirements to be treated as a qualified exchange under applicable U.S. Treasury regulations for purposes of the mark-to-market election, and no assurance can be given that the shares will be
regularly traded for purposes of the mark-to-market election.

If you make an effective mark-to-market election,
you will include in income each year as ordinary income the excess of the fair market value of your shares or ADSs at the end of the year over your adjusted tax basis in the shares or ADSs. You will be entitled to deduct as an ordinary loss each
year the excess of your adjusted tax basis in the shares or ADSs over their fair market value at the end of the year, but only to the extent of the net amount previously included in income as a result of the mark-to-market election. If you make an
effective mark-to-market election, any gain you recognize upon the sale or other disposition of your shares or ADSs will be treated as ordinary income and any loss will be treated as ordinary loss, but only to the extent of the net amount of
previously included income as a result of the mark-to-market election.

Your adjusted tax basis in shares or ADSs will be
increased by the amount of any income inclusion and decreased by the amount of any deductions under the mark-to-market rules. If you make a mark-to-market election it will be effective for the taxable year for which the election is made and all
subsequent taxable years unless the shares or ADSs are no longer regularly traded on a qualified exchange or the Internal Revenue Service consents to the revocation of the election. You should consult your tax advisors about the availability of the
mark-to-market election, and whether making the election would be advisable under your particular circumstances.

Alternatively, a U.S. holder of shares or ADSs in a PFIC can sometimes avoid the rules described above by electing to treat the PFIC as a
qualified electing fund under Section 1295 of the Code. This option is not available to you because we do not intend to comply with the requirements necessary to permit you to make this election.

Non-corporate U.S. holders will not be eligible for reduced rates of taxation on any dividends received from us in taxable years
beginning prior to January 1, 2011, if we are a PFIC in the taxable year in which such dividends are paid or in the preceding taxable year. You should consult your own tax advisors concerning the U.S. federal income tax consequences of holding
shares or ADSs if we are considered a PFIC in any taxable year.



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Information Reporting and Backup Withholding

In general, unless you are an exempt recipient such as a corporation, information reporting will apply to dividends in respect of the
shares or ADSs and to the proceeds from the sale, exchange or redemption of your shares or ADSs that are paid to you within the United States (and in some cases, outside of the United States). Additionally, if you fail to provide your taxpayer
identification number, or fail either to report in full dividend and interest income or to make the necessary certifications of other exempt status, you may be subject to backup withholding.

Any amounts withheld under the backup withholding rules will be allowed as a refund or a credit against your U.S. federal income tax
liability, provided you furnish the required information to the Internal Revenue Service.

Inheritance and Gift Tax

The ROC imposes an estate tax on a decedent who owns shares, and possibly ADSs, even if the decedent was not a citizen or resident of the
ROC. See E. ROC Tax Considerations in this Item. The amount of any inheritance tax paid to the ROC may be eligible for credit against the amount of U.S. federal estate tax imposed on your estate or heirs. You should consult your
personal tax advisors to determine whether and to what extent you may be entitled to such credit.

The ROC also imposes a gift
tax on the donation of any property located within the ROC. Under present law, a U.S. tax credit for foreign gift taxes (such as those imposed by the ROC) is not available.

F. Dividends and Paying Agents

Not applicable.

G. Statement by Experts

Not applicable.

H. Documents on Display

We have filed this annual report on Form 20-F, including exhibits, with the Securities and Exchange Commission. As allowed by the
Securities and Exchange Commission, in Item 19 of this annual report, we incorporate by reference certain information we filed with the Securities and Exchange Commission. This means that we can disclose important information to you by
referring you to another document filed separately with the Securities and Exchange Commission. The information incorporated by reference is considered to be part of this annual report.

You may read and copy this annual report, including the exhibits incorporated by reference in this annual report, at the Securities and
Exchange Commissions Public Reference Room at 100 F Street, N.E., Washington, D.C. 20549 and at the Securities and Exchange Commissions regional offices in New York, New York and Chicago, Illinois. You can also request copies of this
annual report, including the exhibits incorporated by reference in this annual report, upon payment of a duplicating fee, by writing information on the operation of the Securities and Exchange Commissions Public Reference Room.

The Securities and Exchange Commission also maintains a website at www.sec.gov that contains reports, proxy statements and other
information regarding registrants that file electronically with the Securities and Exchange Commission. Our annual report and some of the other information submitted by us to the Securities and Exchange Commission may be accessed through this web
site.

I. Subsidiary Information

Not applicable.



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|ITEM 11. | QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
|-------- | ----------------------------------------------------------

Market risk is the risk of loss related to adverse changes in market prices, including interest rates and foreign exchange rates, of
financial instruments. We are exposed to various types of market risks, including changes in interest rates and foreign currency exchange rates, in the normal course of business.

We use financial instruments, including variable rate debt and swaps and forward contracts, to manage risks associated with our interest
rate and foreign currency exposures through a controlled program of risk management in accordance with established policies. These policies are reviewed and approved by our board of directors. Our treasury operations are subject to internal audit on
a regular basis. We do not hold or issue derivative financial instruments for speculatively purposes.

Since export sales are
primarily conducted in U.S. dollars, we had U.S. dollar-denominated accounts receivables of US$517 million as of December 31, 2009. As of the same date, we also had Japanese Yen-denominated accounts receivable of ¥2,087 million
attributable to our Japanese operations. We had U.S. dollar- and Japanese Yen-denominated accounts payables of US$81 million and ¥2,462 million, respectively, as of December 31, 2009.

Our primary market risk exposures relate to interest rate movements on borrowings and exchange rate movements on foreign
currency-denominated accounts receivables, capital expenditures relating to equipment used in manufacturing processes (including photo etching and chemical vapor deposition) and purchased primarily from Japan and the United States. The fair value of
forward exchange contracts and interest rate swaps is determined based on valuation reports we receive from counterparties after we verify the reasonableness of such reports.

The following table provides information as of December 31, 2009 on our market risk sensitive financial instruments.



|                                                     |  |                         |        |            |   |       
|---------------------------------------------------- |  | ----------------------- | ------ | ---------- | - | ------
|                                                     |  | As of December 31, 2009
|                                                     |  | Book Value              |        | Fair Value
|                                                     |  | (in NT$ millions)      
|Interest Rate Swaps: Non-Trading Purpose             |  | $                       | 88     |            | $ | 88    
|Foreign exchange rate contracts: Non-Trading Purpose |  | $                       | 75     |            | $ | 75    
|Time Deposits: Non-Trading Purpose                   |  | $                       | 46,465 |            | $ | 46,465
|Short-term Loans: Non-Trading Purpose                |  | $                       | 129    |            | $ | 129   
|Bonds: Non-Trading Purpose                           |  | $                       | 12,767 |            | $ | 12,352
|Long-term loans: Non-Trading Purpose                 |  | $                       | 800    |            | $ | 800   

Interest Rate Risk

Our major market risk exposure is changing interest rates. Our exposure to market risk for changes in interest rates
relates primarily to our long-term debt obligations. We primarily enter into debt obligations to support general corporate purposes including capital expenditures and working capital needs. We use interest rate swaps from time to time to modify our
exposure to interest rate movements and reduce borrowing costs. Interest rate swaps limit the risks of fluctuating interest rates by allowing us to convert a portion of the interest on our borrowings from a variable rate to a fixed rate. As of
December 31, 2009 and 2008, we had the following interest rate swaps in effect:



|                        |  |                 |  |                        |  |                   
|----------------------- |  | --------------- |  | ---------------------- |  | ------------------
|Notional Amount         |  | Contract Period |  | Interest Rate Received |  | Interest Rate Paid
|As of December 31, 2009 |  |                 |  |                        |  |                   
|                        |  | May 21, 2003 to |  | 4.3% minus US$12-month |  | 1.48%             
|NT$7,500 million        |  | June 24, 2010   |  | LIBOR                  |  |                   
|                        |  |                 | 
|As of December 31, 2008 |  |                 |  |                        |  |                   
|                        |  | May 21, 2003 to |  | 4.3% minus US$12-month |  | 1.48%             
|NT$7,500 million        |  | June 24, 2010   |  | LIBOR                  |  |                   

The tables below provide information as of December 31, 2009 and 2008 about our financial
instruments that are sensitive to changes in interest rates, including debt obligations and certain assets. For debt obligations, the table presents principal cash flows and related weighted average interest rates by expected maturity dates. The
information is presented in the currencies in which the instruments are denominated.



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Expected Maturity Dates

As of December 31, 2009



|                                 |  |                                   |  |        |  |        |  |        |  |                    |  |                             |  |                            
|-------------------------------- |  | --------------------------------- |  | ------ |  | ------ |  | ------ |  | ------------------ |  | --------------------------- |  | ---------------------------
|                                 |  | 2010                              |  | 2011   |  | 2012   |  | 2013   |  | 2014 andthereafter |  | Total                       |  | Fair Value                 
|                                 |  | (in millions, except percentages)
|Time Deposits:                   |  |                                   |  |        |  |        |  |        |  |                    |  |                             |  |                            
|Fixed Rate (US$)                 |  | 177                               |  |       |  |       |  |       |  |                   |  | 177                         |  | 177                        
|Average Interest Rate            |  | 0.1228%                           |  |       |  |       |  |       |  |                   |  | 0.1228%                     |  | 0.1228%                    
|Fixed Rate (¥)                   |  | 2,000                             |  |       |  |       |  |       |  |                   |  | 2,000                       |  | 2,000                      
|Average Interest Rate            |  | 0.1%                              |  |       |  |       |  |       |  |                   |  | 0.1%                        |  | 0.1%                       
|Fixed Rate (NT$)                 |  | 33,940                            |  |       |  |       |  |       |  |                   |  | 33,940                      |  | 33,940                     
|Average Interest Rate            |  | 0.1659%                           |  |       |  |       |  |       |  |                   |  | 0.1659%                     |  | 0.1659%                    
|Unsecured Long-term Loans:       |  |                                   |  |        |  |        |  |        |  |                    |  |                             |  |                            
|Variable Rate (NT$)              |  | 33                                |  | 45     |  | 22     |  |       |  |                   |  | 100                         |  | 100                        
|Average Interest Rate            |  | 1.63%                             |  | 1.63%  |  | 1.63%  |  |       |  |                   |  | 1.63%                       |  | 1.63%                      
|Secured Long-term Loans:         |  |                                   |  |        |  |        |  |        |  |                    |  |                             |  |                            
|Variable Rate (NT$)              |  |                                  |  | 233    |  | 233    |  | 233    |  |                   |  | 700                         |  | 700                        
|Average Interest Rate            |  |                                  |  | 1.275% |  | 1.275% |  | 1.275% |  |                   |  | 1.275%                      |  | 1.275%                     
|Bonds:                           |  |                                   |  |        |  |        |  |        |  |                    |  |                             |  |                            
|Unsecured (NT$)                  |  | 7,500                             |  |       |  |       |  |       |  |                   |  | 7,500                       |  | 7,187                      
|Variable Rate                    |  | 0%-4.3%                           |  |       |  |       |  |       |  |                   |  | 0%-4.3%                     |  | 0%-4.3%                    
|Unsecured (US$)                  |  |                                  |  |       |  |       |  |       |  | 127                |  | 127                         |  | 99                         
|Fixed Rate                       |  |                                  |  |       |  |       |  |       |  | 0%                 |  | 0%                          |  | 0%                         
|Unsecured (US$)                  |  |                                  |  |       |  |       |  |       |  | 80                 |  | 80                          |  | 62                         
|Fixed Rate                       |  |                                  |  |       |  |       |  |       |  | 0%                 |  | 0%                          |  | 0%                         
|Interest Rate Derivatives        |  |                                   |  |        |  |        |  |        |  |                    |  |                             |  |                            
|Interest Rate Swaps:             |  |                                   |  |        |  |        |  |        |  |                    |  |                             |  |                            
|Variable to Fixed (denomination) |  | NT$7,500million                   |  |       |  |       |  |       |  |                   |  | NT$7,500million             |  | NT$88million               
|Average pay rate                 |  | 1.48%                             |  |       |  |       |  |       |  |                   |  | 1.48%                       |  | 1.48%                      
|Average receive rate             |  | 4.3% minusUS$12-
monthLIBOR       |  |       |  |       |  |       |  |                   |  | 4.3% minusUS$12-
monthLIBOR |  | 4.3% minusUS$12-
monthLIBOR

Expected Maturity Dates

As of December 31, 2008



|                           |  |                                   |  |         |  |        |  |        |  |                    |  |         |  |           
|-------------------------- |  | --------------------------------- |  | ------- |  | ------ |  | ------ |  | ------------------ |  | ------- |  | ----------
|                           |  | 2009                              |  | 2010    |  | 2011   |  | 2012   |  | 2013 andthereafter |  | Total   |  | Fair Value
|                           |  | (in millions, except percentages)
|Time Deposits:             |  |                                   |  |         |  |        |  |        |  |                    |  |         |  |           
|Fixed Rate (US$)           |  | 264                               |  |        |  |       |  |       |  |                   |  | 264     |  | 264       
|Average Interest Rate      |  | 0.6068%                           |  |        |  |       |  |       |  |                   |  | 0.6068% |  | 0.6068%   
|Fixed Rate (¥)             |  | 398                               |  |        |  |       |  |       |  |                   |  | 398     |  | 398       
|Average Interest Rate      |  | 0.1%                              |  |        |  |       |  |       |  |                   |  | 0.1%    |  | 0.1%      
|Fixed Rate (NT$)           |  | 21,330                            |  |        |  |       |  |       |  |                   |  | 21,330  |  | 21,330    
|Average Interest Rate      |  | 0.9028%                           |  |        |  |       |  |       |  |                   |  | 0.9028% |  | 0.9028%   
|Unsecured Long-term Loans: |  |                                   |  |         |  |        |  |        |  |                    |  |         |  |           
|Variable Rate (NT$)        |  | 67                                |  | 67      |  | 66     |  |       |  |                   |  | 200     |  | 200       
|Average Interest Rate      |  | 2.61%                             |  | 2.61%   |  | 2.61%  |  |       |  |                   |  | 2.61%   |  | 2.61%     
|Secured Long-term Loans:   |  |                                   |  |         |  |        |  |        |  |                    |  |         |  |           
|Variable Rate (NT$)        |  |                                  |  | 42      |  | 167    |  | 167    |  | 124                |  | 500     |  | 500       
|Average Interest Rate      |  |                                  |  | 1.815%  |  | 1.815% |  | 1.815% |  | 1.815%             |  | 1.815%  |  | 1.815%    
|Bonds:                     |  |                                   |  |         |  |        |  |        |  |                    |  |         |  |           
|Unsecured (NT$)            |  |                                  |  | 7,500   |  |       |  |       |  |                   |  | 7,500   |  | 7,143     
|Variable Rate              |  |                                  |  | 0%-4.3% |  |       |  |       |  |                   |  | 0%-4.3% |  | 0%-4.3%   
|Interest Rate Derivatives  |  |                                   |  |         |  |        |  |        |  |                    |  |         |  |           



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Expected Maturity Dates

As of December 31, 2008



|                                 |  |                                   |  |                            |  |      |  |      |  |                    |  |                             |  |                             
|-------------------------------- |  | --------------------------------- |  | -------------------------- |  | ---- |  | ---- |  | ------------------ |  | --------------------------- |  | ----------------------------
|                                 |  | 2009                              |  | 2010                       |  | 2011 |  | 2012 |  | 2013 andthereafter |  | Total                       |  | Fair Value                  
|                                 |  | (in millions, except percentages)
|Interest Rate Swaps:             |  |                                   |  |                            |  |      |  |      |  |                    |  |                             |  |                             
|Variable to Fixed (denomination) |  | NT$7,500million                   |  | NT$7,500million            |  |     |  |     |  |                   |  | NT$7,500million             |  | NT$80million                
|Average pay rate                 |  | 1.48%                             |  | 1.48%                      |  |     |  |     |  |                   |  | 1.48%                       |  | 1.48%                       
|Average receive rate             |  | 4.3% minusUS$12-
monthLIBOR       |  | 4.3% minusUS$12-monthLIBOR |  |     |  |     |  |                   |  | 4.3% minusUS$12-
monthLIBOR |  | 4.3% minusUS$12-
month
LIBOR

Foreign Currency Risk

Although the majority of our transactions are in NT dollars, some transactions are based in other currencies. The primary currencies to
which we are exposed are the U.S. dollar and the Japanese Yen. We have in the past, and may in the future, enter into short-term, forward exchange contracts to hedge the impact of foreign currency fluctuations on certain underlying assets,
liabilities, and firm commitments for operating expenses and capital expenditures denominated in U.S. dollars. The purpose of entering into these hedges is to minimize the impact of foreign currency fluctuations on the results of operations. Gains
and losses on foreign currency contracts and foreign currency-denominated assets and liabilities are recorded in the period of the exchange rate changes. The contracts have maturity dates that do not exceed three months.

As of December 31, 2008 and 2009, we had NT$188 million and NT$267 million outstanding in foreign currency forward contracts to sell
US dollars against NT dollars, respectively. As of March 31, 2010, we had foreign currency forward contracts to sell US dollars against NT dollars that amounted to US$198 million.

Except for the market risk mentioned above, we believe that we did not have any other material market risk as of December 31, 2009.

Expected Maturity Dates

As of December 31, 2009



|                                     |  |                                      |  |      |  |      |  |      |  |                    |  |                 |  |            |   
|------------------------------------ |  | ------------------------------------ |  | ---- |  | ---- |  | ---- |  | ------------------ |  | --------------- |  | ---------- | --
|                                     |  | 2010                                 |  | 2011 |  | 2012 |  | 2013 |  | 2014 andthereafter |  | Total           |  | Fair Value
|                                     |  | (in millions, except exchange rates)
|Foreign Currency Forward Contracts:  |  |                                      |  |      |  |      |  |      |  |                    |  |                 |  |            |   
|Sell US$ against NT$
Contract Amount |  | US$267                               |  |     |  |     |  |     |  |                   |  | US$267          |  | NT$        | 75
|Average Contractual Exchange Rate    |  | US$1=NT$32.2910                      |  |     |  |     |  |     |  |                   |  | US$1=NT$32.2910 |  |            |  

Expected Maturity Dates

As of December 31, 2008



|                                     |  |                                      |  |      |  |      |  |      |  |                    |  |                 |  |            |   
|------------------------------------ |  | ------------------------------------ |  | ---- |  | ---- |  | ---- |  | ------------------ |  | --------------- |  | ---------- | --
|                                     |  | 2009                                 |  | 2010 |  | 2011 |  | 2012 |  | 2013 andthereafter |  | Total           |  | Fair Value
|                                     |  | (in millions, except exchange rates)
|Foreign Currency Forward Contracts:  |  |                                      |  |      |  |      |  |      |  |                    |  |                 |  |            |   
|Sell US$ against NT$
Contract Amount |  | US$188                               |  |     |  |     |  |     |  |                   |  | US$188          |  | NT$        | 60
|Average Contractual Exchange Rate    |  | US$1=NT$33.1633                      |  |     |  |     |  |     |  |                   |  | US$1=NT$33.1633 |  |            |  



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|ITEM 12. | DESCRIPTION OF SECURITIES OTHER THAN EQUITY SECURITIES
|-------- | ------------------------------------------------------

A. Debt Securities

Not applicable.

B. Warrants and Rights

Not applicable.

C. Other Securities

Not applicable.

D. American Depositary Shares

Depositary Fees and Charges

Under the terms of the deposit agreement for our ADSs, an ADS holder may have to pay the following service fees to the depositary:



|                                                                                                  |  |                               
|------------------------------------------------------------------------------------------------- |  | ------------------------------
|Service                                                                                           |  | Fees                          
|Issuance of ADSs                                                                                  |  | Up to US$0.05 per ADS issued  
|Cancellation of ADSs                                                                              |  | Up to US$0.05 per ADS canceled
|Distribution of cash dividends or other cash distributions                                        |  | Up to US$0.02 per ADS held    
|Distribution of ADSs pursuant to stock dividends, free stock distributions or exercises of rights |  | Up to US$0.05 per ADS held    
|Distribution of securities other than ADSs or rights to purchase additional ADSs                  |  | Up to US$0.05 per ADS held    

In addition,
an ADS holder shall be responsible for the following charges:



| |  |  | taxes (including applicable interest and penalties) and other governmental charges;
| | - |  | -----------------------------------------------------------------------------------



| |  |  | such registration fees as may from time to time be in effect for the registration of common shares or other deposited securities on the share register
and applicable to transfers of common shares or other deposited securities to or from the name of the custodian, the depositary or any nominees upon the making of deposits and withdrawals, respectively;
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | such cable, telex and facsimile transmission and delivery expenses as are expressly provided in the deposit agreement to be at the expense of ADS
holders and beneficial owners of ADSs;
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | the expenses and charges incurred by the depositary in the conversion of foreign currency;
| | - |  | ------------------------------------------------------------------------------------------



| |  |  | such fees and expenses as are incurred by the depositary in connection with compliance with exchange control regulations and other regulatory
requirements applicable to common shares, deposited securities, ADSs and ADRs; and
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | the fees and expenses incurred by the depositary, the custodian or any nominee in connection with the servicing or delivery of deposited securities.
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------

Depositary fees payable upon the issuance and cancellation of ADSs are typically paid to the depositary by
the brokers (on behalf of their clients) receiving the newly-issued ADSs from the depositary and by the brokers (on behalf of their clients) delivering the ADSs to the depositary for cancellation. The brokers in turn charge these transaction fees to
their clients.



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Depositary fees payable in connection with distributions of cash or securities to ADS
holders and the depositary services fee are charged by the depositary to the holders of record of ADSs as of the applicable ADS record date. The depositary fees payable for cash distributions are generally deducted from the cash being distributed.
In the case of distributions other than cash (i.e., stock dividends, rights offerings), the depositary charges the applicable fee to the ADS record date holders concurrent with the distribution. In the case of ADSs registered in the name of the
investor (whether certificated or un-certificated in direct registration), the depositary sends invoices to the applicable record date ADS holders. In the case of ADSs held in brokerage and custodian accounts via the central clearing and settlement
system, The Depository Trust Company, or DTC, the depositary generally collects its fees through the systems provided by DTC (whose nominee is the registered holder of the ADSs held in DTC) from the brokers and custodians holding ADSs in their DTC
accounts. The brokers and custodians who hold their clients ADSs in DTC accounts in turn charge their clients accounts the amount of the fees paid to the depositary.

In the event of refusal to pay the depositary fees, the depositary may, under the terms of the deposit agreement, refuse the requested
service until payment is received or may set off the amount of the depositary fees from any distribution to be made to the ADS holder.

The fees and charges ADS holders may be required to pay may vary over time and may be changed by us and by the depositary. ADS holders
will receive prior notice of such changes.

Depositary Payments

In 2009, we received the following payments from Citibank, N.A., the depositary for our ADR program through October 20, 2009. We
appointed JPMorgan Chase & Co. as our new depositary on October 21, 2009. We did not receive any reimbursement from JP Morgan in 2009.



|                                                                                                   |  |      |           
|-------------------------------------------------------------------------------------------------- |  | ---- | ----------
|Service                                                                                            |  | Fees
|Reimbursement of listing fees                                                                      |  | US$  | 208,902.00
|Reimbursement of SEC filing fees                                                                   |  | US$  | 9,993.00  
|Reimbursement of accounting supporting fees for FASB and Public Company Accounting Oversight Board |  | US$  | 6,469.16  
|Reimbursement of annual ordinary stockholders meeting expenses                                    |  | US$  | 93,609.26 
|Reimbursement of fees in connection with annual financial and Sarbanes-Oxley Act of 2002 audit     |  | US$  | 411,974.46
|Contribution to our companys investor relations efforts                                           |  | US$  | 18,718.48 
|Others                                                                                             |  | US$  | 23,308.69 
|                                                                                                   |  |      |           
|Total                                                                                              |  | US$  | 772,975.05
|                                                                                                   |  |      |           



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PART II



|ITEM 13. | DEFAULTS, DIVIDEND ARREARAGES AND DELINQUENCIES
|-------- | -----------------------------------------------

None of these events occurred in any of 2007, 2008 or 2009.



|ITEM 14. | MATERIAL MODIFICATIONS TO THE RIGHTS OF SECURITY HOLDERS AND USE OF PROCEEDS
|-------- | ----------------------------------------------------------------------------

None.



|ITEM 15. | CONTROLS AND PROCEDURES
|-------- | -----------------------

Disclosure
Controls and Procedures

As of the end of the period covered by this annual report, an evaluation has been carried out
under the supervision and with the participation of our management, including our Chief Executive Officer and our Chief Financial Officer, of the effectiveness of the design and operation of our disclosure controls and procedures, as such term is
defined under Rules 13a-15(e) and 15d-15(e) promulgated under the Securities Exchange Act of 1934, as amended. Based on that evaluation, our Chief Executive Officer and Chief Financial Officer have concluded that our disclosure controls and
procedures are effective in ensuring that material information required to be disclosed in this annual report is recorded, processed, summarized and reported to them for assessment, and required disclosure is made within the time period specified in
the rules and forms of the Securities and Exchange Commission.

Managements Annual Report on Internal Control over Financial
Reporting

Our management is responsible for establishing and maintaining adequate internal control over financial
reporting, as such term is defined in Rule 13a-15(f) and 15d-15(f) under the Securities Exchange Act of 1934, as amended, for our company. A companys internal control over financial reporting is a process designed to provide reasonable
assurance regarding the reliability of financial reporting and the preparation of financial statements in accordance with generally accepted accounting principles.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections
of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

As required by Section 404 of the Sarbanes-Oxley Act of 2002 and related rules as promulgated by the Securities and Exchange
Commission, our management assessed the effectiveness of our internal control over financial reporting as of December 31, 2009 using the criteria established in Internal Control-Integrated Framework issued by the Committee of Sponsoring
Organizations of the Treadway Commission, or the COSO criteria. Based on this assessment, our management concluded that our internal control over financial reporting was effective as of December 31, 2009 based on the COSO criteria. Our
independent registered public accounting firm, Ernst & Young has issued an attestation report with unqualified opinion on the effectiveness of our internal control over financial reporting as of December 31, 2009, which is included
immediately following this report.



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Attestation Report of the Independent Registered Public Accounting Firm

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Board of Directors and Stockholders of United Microelectronics Corporation:

We have audited United Microelectronics Corporation and subsidiaries (the Company) internal control over financial reporting as of
December 31, 2009, based on criteria established in Internal ControlIntegrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (the COSO criteria). The Companys management is responsible for
maintaining effective internal control over financial reporting, and for its assessment of the effectiveness of internal control over financial reporting included in the accompanying Managements Annual Report on Internal Control over Financial
Reporting. Our responsibility is to express an opinion on the Companys internal control over financial reporting based on our audit.

We
conducted our audit in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control
over financial reporting was maintained in all material respects. Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, testing and evaluating the design and
operating effectiveness of internal control based on the assessed risk, and performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

A companys internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial
reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A companys internal control over financial reporting includes those policies and procedures that
(1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as
necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors
of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use or disposition of the companys assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of
any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

In our opinion, United Microelectronics Corporation and subsidiaries maintained, in all material respects, effective internal control over financial
reporting as of December 31, 2009, based on the COSO criteria.

We also have audited, in accordance with the standards generally
accepted in the Republic of China and the standards of the Public Company Accounting Oversight Board (United States), the consolidated balance sheets of United Microelectronics Corporation and subsidiaries as of December 31, 2009 and 2008, and
the related consolidated statements of income, changes in stockholders equity and cash flows for each of the three years in the period ended December 31, 2009 of United Microelectronics Corporation and subsidiaries and our report dated
April 30, 2010 expressed an unqualified opinion thereon.

Ernst & Young

Taipei, Taiwan

Republic of China

April 30, 2010



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Changes in Internal Control over Financial Reporting

There were no changes in our internal control over financial reporting that occurred during the year ended December 31, 2009 that
have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.



|ITEM 16A. | AUDIT COMMITTEE FINANCIAL EXPERT
|--------- | --------------------------------

Our Board of Directors have determined that Paul S.C. Hsu and Cheng-Li Huang, two of our independent directors, qualifies as audit
committee financial experts and meet the independence requirement as defined in Item 16A to Form 20-F.



|ITEM 16B. | CODE OF ETHICS
|--------- | --------------

In June
2009, we amended the Code of Ethics for Directors and Officers and the Employee Code of Conduct. The Employee Code of Conduct, which is applicable to all employees, replaced the code of ethics filed with the Securities and Exchange Commission in our
2003 annual report on Form 20-F. We have also created a separate code of ethics applicable to our directors and officers. A copy of each of the Code of Ethics for Directors and Officers and the Employee Code of Conduct are displayed on our website
at http://www.umc.com/english/pdf/Code_of_Ethics.pdf and http://www.umc.com/english/pdf/Code_of_Conduct.pdf, respectively. Stockholders may request a hard copy of the Code of Ethics for Directors and Officers and the Employee Code of Conduct free of
charge. Please contact the investor relations department of our company at ir@umc.com.



|ITEM 16C. | PRINCIPAL ACCOUNTANT FEES AND SERVICES
|--------- | --------------------------------------

The following table sets forth the aggregate fees by categories specified below in connection with certain professional services rendered
by Ernst & Young, our principal external auditors, for the years indicated.



|                      |  |                                 |  |        |  |      
|--------------------- |  | ------------------------------- |  | ------ |  | -----
|                      |  | For the year ended December 31,
|                      |  | 2008                            |  | 2009  
|                      |  | NT$                             |  | NT$    |  | US$  
|                      |  | (in thousands)                 
|Audit
Fees(1)         |  | 108,442                         |  | 66,712 |  | 2,088
|Audit-related
Fees(2) |  | 640                             |  | 1,520  |  | 48   
|Tax
Fees(3)           |  | 3,275                           |  | 2,460  |  | 77   
|                      |  |                                 |  |        |  |      
|Total                 |  | 112,357                         |  | 70,692 |  | 2,213
|                      |  |                                 |  |        |  |      



|(1) | Audit fees consist of fees associated with the annual audit, review of our quarterly financial statements, statutory audits and internal control review. They also
include fees billed for those services that are normally provided by the independent accountants in connection with statutory and regulatory filings.
|--- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(2) | Audit-related fees consist of fees billed for assurance and related services that are reasonably related to the performance of the audit or review of our financial
statements but not described in footnote (1) above. These services include review of regulatory checklist for the adoption of our employee stock option plan and certification of our Singapore Branch to Singapore authorities.
|--- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(3) | Tax fees include fees billed for professional services rendered by Ernst & Young, primarily in connection with our tax compliance activities.
|--- | ---------------------------------------------------------------------------------------------------------------------------------------------

All audit and non-audit services performed by Ernst & Young were pre-approved by our audit committee.
In certain circumstances, the audit committee delegates to one designated member to pre-approve such audit and non-audit services. Pre-approval by a designated member should be reported to the audit committee at its upcoming meeting.



|ITEM 16D. | EXEMPTIONS FROM THE LISTING STANDARDS FOR AUDIT COMMITTEES
|--------- | ----------------------------------------------------------

None.



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|ITEM 16E. | PURCHASE OF EQUITY SECURITIES BY THE ISSUER AND AFFILIATED PURCHASERS
|--------- | ---------------------------------------------------------------------

Since March 2004, we have from time to time announced plans, which were not binding on us, to buy back our shares up to a certain amount
on the Taiwan Stock Exchange. Set for below contains certain information regarding our share buy back programs in 2007, 2008, 2009 and 2010.



|                                      |  |                                       |  |                                        |  |                                                                                  |  |                                                                         
|------------------------------------- |  | ------------------------------------- |  | -------------------------------------- |  | -------------------------------------------------------------------------------- |  | ------------------------------------------------------------------------
|Period                                |  | Total Number ofCommon SharesPurchased |  | Average PricePaidper 
CommonShare(NT$) |  | Total Number ofCommon
SharesPurchased as PartofPubliclyAnnouncedPlans or Program |  | Maximum NumberofShares that 
MayYet bePurchasedUnder the Plans orProgram
|2007                                  |  |                                      |  |                                       |  |                                                                                 |  |                                                                        
|(1)August
 (from August 28, 2008)     |  | 15,913,000                            |  | 13.21                                  |  | 15,913,000                                                                       |  | 184,087,000                                                             
|September                             |  | 171,205,000                           |  | 11.32                                  |  | 187,118,000                                                                      |  | 12,882,000                                                              
|October (to October 2, 2008)          |  | 12,882,000                            |  | 10.17                                  |  | 200,000,000                                                                      |  |                                                                        
|(2)December
 (from December 17, 2008) |  |                                      |  |                                       |  |                                                                                 |  | 300,000,000                                                             
|January                               |  | 110,412,000                           |  | 7.81                                   |  | 110,412,000                                                                      |  | 189,588,000                                                             
|February (to February 16, 2009)       |  | 189,588,000                           |  | 8.08                                   |  | 300,000,000                                                                      |  |                                                                        
|(3)February
 (from February 3, 2010)  |  | 147,845,000                           |  | 15.98                                  |  | 147,845,000                                                                      |  | 152,155,000                                                             
|March (to March 22)                   |  | 152,155,000                           |  | 16.31                                  |  | 300,000,000                                                                      |  |                                                                        



|(1) | The
12thshare buy-back plan was announced on August 27,
2008 to repurchase 200 million shares during the period from August 28, 2008 to October 27, 2008.
|--- | ---------------------------------------------------------------------------------------------------------------------------------------------------------

|(2) | The
13thshare buy-back plan was announced on
December 16, 2008 to repurchase 300 million shares during the period from December 17, 2008 to February 16, 2009.
|--- | --------------------------------------------------------------------------------------------------------------------------------------------------------------

|(3) | The
14thshare buy-back plan was announced on February 2,
2010 to repurchase 300 million shares during the period from February 3, 2010 to April 2, 2010.
|--- | --------------------------------------------------------------------------------------------------------------------------------------------------------



|ITEM 16F. | CHANGE IN REGISTRANTS CERTIFYING ACCOUNTANT
|--------- | --------------------------------------------

Not applicable.



|ITEM 16G. | CORPORATE GOVERNANCE
|--------- | --------------------

As
a ROC company listed on the New York Stock Exchange, or NYSE, we are subject to the U.S. corporate governance rules to the extent that these rules are applicable to foreign private issuers. The following summary details the significant differences
between our corporate governance practices and corporate governance standards for U.S. companies (i.e. non-foreign private issuers) under the NYSE listing standards.

The Legal Framework. In general, corporate governance principles for Taiwanese companies are set forth in the Company Act of the
Republic of China, or ROC Company Act, the ROC Securities Exchange Act and, to the extent they are listed on the Taiwan Stock Exchange, listing rules of the Taiwan Stock Exchange. Corporate governance principles under provisions of ROC law may
differ in significant ways to corporate governance standards for U.S. companies listed on the NYSE. Committed to high standards of corporate governance, we have generally brought our corporate governance in line with U.S. regulations, including the
formation of an audit committee. However, we have not adopted certain recommended NYSE corporate governance standards where such standards are contrary to ROC laws or regulations or generally prevailing business practices in Taiwan.



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Independent Board Members. Under the NYSE listing standards applicable to U.S.
companies, independent directors must comprise a majority of the board of directors. We currently have three independent directors out of a total of nine directors on our board of directors. Our standards in determining director independence
substantially comply with the NYSE listing standards, which include detailed tests for determining director independence. In addition, even though our independent directors meet in committee meetings of which they are committee members, we will not
hold executive sessions of non-management directors. Such requirement is contrary to ROC Company Act.

Board
Committees. Under the NYSE listing standards, companies are required to have a nominating/corporate governance committee, composed entirely of independent directors. In addition to identifying individuals qualified to become board members, the
nominating/corporate committee must develop and recommend to the board a set of corporate governance principles. We do not currently have a corporate governance committee or a nominating committee. In accordance with an interpretation letter issued
under the ROC Company Act, the power to nominate directors shall not vest only in the directors. Any holder of the companys voting common stock may nominate directors to be voted on by stockholders. Therefore, we do not have a nominating
committee because vesting such nominating rights in a body of independent directors may result in conflict with the ROC Company Act. Furthermore, we do not have a corporate governance committee as such committee is not required under ROC
requirements. Our board of directors is responsible for regularly reviewing our corporate governance standards and practices.

Under the NYSE listing standards, companies are required to have a compensation committee, composed entirely of independent directors.
Under the ROC Company Act, however, companies incorporated in the ROC are not required to have a compensation committee. The ROC Company Act requires that director compensation be determined either in accordance with the companys articles of
incorporation or by the approval of the stockholders. Currently, in addition to compensation approved at the stockholders meeting, in the event we have net income, we will distribute 0.1% of our earnings after payment of all income taxes,
deduction of any past losses and allocation of 10% of our net income for legal reserves, as remunerations to our directors pursuant to our articles of incorporation. Currently, our board of directors is responsible for determining the form and
amount of compensation for each of our directors and executive officers within the guidelines of our articles of incorporation.

Equity Compensation Plans. The NYSE listing standards also require that a companys stockholders must approve equity
compensation plans. Under the corresponding requirements in the ROC Company Act and the ROC Securities Exchange Act, stockholders approval is required for the distribution of employee bonuses in the form of stock, while the board of director
has authority, subject to the approval of the ROC Securities and Futures Bureau, to approve employee stock option plans and to grant options to employees pursuant to such plans and has also authority to approve share buy-back programs for the
purpose of selling shares so purchased to employees and the sale of such shares to employees pursuant to such programs. We intend to follow only the ROC requirements.



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PART III



|ITEM 17. | FINANCIAL STATEMENTS
|-------- | --------------------

The
Registrant has elected to provide the financial statements and related information specified in Item 18.



|ITEM 18. | FINANCIAL STATEMENTS
|-------- | --------------------

The following is a list of the audited consolidated financial statements and report of independent registered public accounting firm
included in this annual report beginning on page F-1.



|                                                                                                                               |  |     
|------------------------------------------------------------------------------------------------------------------------------ |  | ----
|                                                                                                                               |  | Page
|                                                                                                                               | 
|Consolidated Financial Statements of United Microelectronics Corporation and Subsidiaries                                      |  |     
|                                                                                                                               | 
|Report of Independent Registered Public Accounting Firm                                                                        |  | F-2 
|                                                                                                                               | 
|Consolidated Balance Sheets at December 31, 2008 and 2009                                                                      |  | F-3 
|                                                                                                                               | 
|Consolidated Statements of Income for each of the three years ended December 31, 2007, 2008 and 2009                           |  | F-4 
|                                                                                                                               | 
|Consolidated Statements of Changes in Stockholders Equity for each of the three years ended December 31,
 2007, 2008 and 2009 |  | F-5 
|                                                                                                                               | 
|Consolidated Statements of Cash Flows for each of the three years ended December 
31, 2007, 2008 and 2009                      |  | F-8 
|                                                                                                                               | 
|Notes to the Consolidated Financial Statements                                                                                 |  | F-10



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|ITEM 19. | EXHIBITS
|-------- | --------



|              |  |                                                                                                                                                                                                                                                                         
|------------- |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|ExhibitNumber |  | Description of Exhibits                                                                                                                                                                                                                                                 
|              | 
|*1.1          |  | Articles of Incorporation of the Company as last amended on June 13, 2008                                                                                                                                                                                               
|              | 
|2.1           |  | Form of Amendment No. 1 to Deposit Agreement among the Company, and Holders and Beneficial Owners of American Depositary Shares issued thereunder, including the form of American
Depositary Shares (1)                                                                 
|              | 
|2.2           |  | Form of Amendment No. 2 to Deposit Agreement among the Company, and Holders and Beneficial Owners of American Depositary Shares issued thereunder, including the form of American
Depositary Shares (2)                                                                 
|              | 
|4.1           |  | Lease Agreement with Hsinchu Science Park Administration in relation to government-owned land located at Hsinchu Science Park, Ko-Kuan Section, No. 20-22, Hsinchu, Taiwan, ROC, the
site of Fab 6A (in Chinese with English summary translation) (3)                   
|              | 
|4.2           |  | Lease Agreement with Hsinchu Science Park Administration in relation to government-owned land located at Hsinchu Science Park, third section of first phase, Hsinchu, Taiwan, ROC,
the site of Fab 8A and United Tower (in Chinese with English summary translation) (4)
|              | 
|4.3           |  | Lease Agreement with Hsinchu Science Park Administration in relation to government-owned land located at Hsinchu Science Park, third section of first phase, Hsinchu, Taiwan, ROC,
the site of Fab 8C (in Chinese with English summary translation) (5)                 
|              | 
|4.4           |  | Lease Agreement with Hsinchu Science Park Administration in relation to government-owned land located at Hsinchu Science Park, third section of first phase, Hsinchu, Taiwan, ROC,
the site of Fab 8D (in Chinese with English summary translation) (6)                 
|              | 
|4.5           |  | Lease Agreement with Hsinchu Science Park Administration in relation to government-owned land located at Hsinchu Science Park, third section of second phase, Hsinchu, Taiwan, ROC,
the site of Fab 8E (in Chinese with English summary translation) (7)                
|              | 
|4.6           |  | Lease Agreement with Hsinchu Science Park Administration in relation to government-owned land located at Hsinchu Science Park, Gin-Shan section, Hsinchu, Taiwan, ROC, the site of
Fab 8F (in Chinese with English summary translation) (8)                             
|              | 
|4.7           |  | Lease Agreement with Southern Taiwan Science Park Administration in relation to government-owned land located at Tainan Science Park, Tainan, Taiwan, ROC, the site of Fab 12A (in
Chinese with English summary translation) (9)                                        
|              | 
|4.8           |  | Merger Agreement, entered into as of February 26, 2004, between United Microelectronics Corporation and SiS Microelectronics Corporation (English Translation) (10)                                                                                                     
|              | 
|4.9           |  | Lease Agreement with Hsinchu Science Park Administration in relation to government-owned land located at Hsinchu Science Park, Ko-Kuan section, Hsinchu, Taiwan, ROC, the site of Fab
8S (in Chinese with English summary translation) (11)                             
|              | 
|4.10          |  | Lease Agreement with JTC Corporation in relation to land located at Pasir Ris Wafer Fab Park, Singapore, the site of Fab 12i (summary) (12)                                                                                                                             



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|              |  |                                                                                                                                                                       
|------------- |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------
|ExhibitNumber |  | Description of Exhibits                                                                                                                                               
|              | 
|4.11          |  | Merger Agreement, entered into as of April 29, 2009, among United Microelectronics Corporation, Infoshine Technology Limited and Best Elite International Limited
(13)
|              | 
|*8.1          |  | List of Significant Subsidiaries of United Microelectronics Corporation                                                                                               
|              | 
|11.1          |  | Code of Ethics for Directors, Supervisors and Officers (14)                                                                                                           
|              | 
|11.2          |  | Employee Code of Conduct (15)                                                                                                                                         
|              | 
|*12.1         |  | Certification of our Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002                                                                
|              | 
|*12.2         |  | Certification of our Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002                                                                
|              | 
|*13.1         |  | Certification of our Chief Executive Officer pursuant to 18 U.S.C.§ 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002                        
|              | 
|*13.2         |  | Certification of our Chief Financial Officer pursuant to 18 U.S.C.§ 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002                        
|              | 
|*15.1         |  | Consent of Independent Registered Public Accounting Firm                                                                                                              
|              | 
|99.1          |  | Form 6-K furnished to the Commission on April 29, 2009 (File No. 001-15128) (16)                                                                                      
|              | 
|99.2          |  | Form 6-K furnished to the Commission on October 28, 2009 (File No. 001-15128) (17)                                                                                    
|              | 
|99.3          |  | Form 6-K furnished to the Commission on December 21, 2009 (File No. 001-15128) (18)                                                                                   



|* | Filed herewith.
|- | ---------------

|(1) | Incorporated by reference to Exhibit (a) to the Registrants Registration Statement on Form F-6 (File No. 333-13796) filed with the Commission on
March 2, 2006.
|--- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------

|(2) | Incorporated by reference to Exhibit (a)(iii) to the Registrants Registration Statement on Form F-6 (File No. 333-98591) filed with the Commission on
March 19, 2007.
|--- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(3) | Incorporated by reference to Exhibit 4.1 to Registrants Annual Report on Form 20-F for the fiscal year ended December 31, 2006 (File No. 001-15128)
filed with the Commission on May 9, 2007.
|--- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(4) | Incorporated by reference to Exhibit 10.7 to the Registrants Registration Statement on Form F-1 (File No. 333-12444) filed with the Commission on
August 28, 2000, as amended.
|--- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(5) | Incorporated by reference to Exhibit 10.8 to the Registrants Registration Statement on Form F-1 (File No. 333-12444) filed with the Commission on
August 28, 2000, as amended.
|--- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(6) | Incorporated by reference to Exhibit 10.9 to the Registrants Registration Statement on Form F-1 (File No. 333-12444) filed with the Commission on
August 28, 2000, as amended.
|--- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(7) | Incorporated by reference to Exhibit 10.10 to the Registrants Registration Statement on Form F-1 (File No. 333-12444) filed with the Commission on
August 28, 2000, as amended.
|--- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



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|(8) | Incorporated by reference to Exhibit 10.11 to the Registrants Registration Statement on F-1 (File No. 333-12444) filed with the Commission on August 28,
2000, as amended.
|--- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(9) | Incorporated by reference to Exhibit 10.12 to the Registrants Registration Statement on F-1 (File No. 333-12444) filed with the Commission on August 28,
2000, as amended.
|--- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(10) | Incorporated by reference to Exhibit 4.8 to the Registrants Annual Report on Form 20-F for the fiscal year ended December 31, 2003 (File No. 1-15128)
filed with the Commission on June 17, 2004.
|---- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(11) | Incorporated by reference to Exhibit 4.9 to Registrants Annual Report on Form 20-F for the fiscal year ended December 31, 2006 (File No. 001-15128)
filed with the Commission on May 9, 2007.
|---- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(12) | Incorporated by reference to Exhibit 4.10 to Registrants Annual Report on Form 20-F for the fiscal year ended December 31, 2006 (File No. 001-15128)
filed with the Commission on May 9, 2007.
|---- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(13) | Incorporated by reference to Exhibit 99.1 to the Form 6-K furnished to the Commission on May 8, 2009.
|---- | -----------------------------------------------------------------------------------------------------

|(14) | Incorporated by reference to Exhibit 99.1 to the Form 6-K furnished to the Commission on May 25, 2005.
|---- | ------------------------------------------------------------------------------------------------------

|(15) | Incorporated by reference to Exhibit 99.2 to the Form 6-K furnished to the Commission on March 26, 2006.
|---- | --------------------------------------------------------------------------------------------------------

|(16) | Incorporated by reference to Exhibit 99 to the Form 6-K furnished to the Commission on April 29, 2009.
|---- | ------------------------------------------------------------------------------------------------------

|(17) | Incorporated by reference to Exhibit 99 to the Form 6-K furnished to the Commission on October 28, 2009.
|---- | --------------------------------------------------------------------------------------------------------

|(18) | Incorporated by reference to Exhibit 99 to the Form 6-K furnished to the Commission on December 21, 2009.
|---- | ---------------------------------------------------------------------------------------------------------



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SIGNATURES

The registrant hereby certifies that it meets all of the requirements for filing on Form 20-F and that it has duly caused and authorized
the undersigned to sign this annual report on its behalf.



|                                    |  |                        
|----------------------------------- |  | -----------------------
|UNITED MICROELECTRONICS CORPORATION
|                                    | 
|By:                                 |  | /S/    CHITUNG LIU     
|Name:                               |  | Chitung Liu            
|Title:                              |  | Chief Financial Officer

Date:
April 30, 2010



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##### Table of Contents

UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

United Microelectronics Corporation and Subsidiaries

Consolidated Financial Statements for years ended December 31, 2007, 2008 and 2009

Together with Report of Independent Registered Public Accounting Firm



---

##### Table of Contents

UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Board of Directors and Stockholders of United Microelectronics Corporation

We have audited the accompanying consolidated balance sheets of United Microelectronics Corporation and subsidiaries (the Company) as of
December 31, 2009 and 2008, and the related consolidated statements of income, changes in stockholders equity and cash flows for each of the three years in the period ended December 31, 2009. These financial statements are the
responsibility of the Companys management. Our responsibility is to express an opinion on these financial statements based on our audits.

We conducted our audits in accordance with auditing standards generally accepted in the Republic of China (ROC) and the standards of the
Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes
examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall
financial statement presentation. We believe that our audits provide a reasonable basis for our opinion.

In our opinion, the consolidated
financial statements referred to above present fairly, in all material respects, the consolidated financial position of United Microelectronics Corporation and subsidiaries at December 31, 2009 and 2008, and the consolidated results of their
operations and their cash flows for each of the three years in the period ended December 31, 2009, in conformity with the requirements of the Guidelines Governing the Preparation of Financial Reports by Securities Issuers and accounting
principles generally accepted in the Republic of China, which differ in certain respects from U.S. generally accepted accounting principles (see Note 35 to the consolidated financial statements).

As described in Note 3 to the consolidated financial statements, effective January 1, 2009, the Company has adopted the amendment of R.O.C.
Statement of Financial Accounting Standards No. 10, Accounting for Inventories.

As described in Note 3 to the consolidated
financial statements, effective January 1, 2008, the Company has adopted Accounting Research and Development Foundation Interpretation No. 96-052, and recognized employee bonus and remunerations to directors and supervisors as expenses
rather than as a distribution of retained earnings.

We also have audited, in accordance with the standards of Public Company Accounting
Oversight Board (United States), United Microelectronics Corporation and subsidiaries internal control over financial reporting as of December 31, 2009, based on criteria established in Internal Control  Integrated Framework issued
by the Committee of Sponsoring Organizations of the Treadway Commission and our report dated April 30, 2010 expressed an unqualified opinion thereon.

/s/ Ernst & Young

ERNST &
YOUNG

CERTIFIED PUBLIC ACCOUNTANTS

Taipei, Taiwan

Republic of China

April 30, 2010



F-2



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##### Table of Contents

UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS

(Expressed in Thousands)



|                                                                    |  |                   |  |                    |   |  |              |   |  |             |  
|------------------------------------------------------------------- |  | ----------------- |  | ------------------ | - |  | ------------ | - |  | ----------- | -
|                                                                    |  |                   |  | As of December 31, |  
|                                                                    |  | Notes             |  | 2008               |   |  | 2009         |  
|                                                                    |  |                   |  | NT$                |   |  | NT$          |   |  | US$         |  
|Assets                                                              |  |                   |  |                    |   |  |              |   |  |             |  
|Current assets                                                      |  |                   |  |                    |   |  |              |   |  |             |  
|Cash and cash equivalents                                           |  | 2, 4              |  | 48,566,649         |   |  | 66,152,960   |   |  | 2,070,515   |  
|Financial assets at fair value through profit or loss, current      |  | 2, 5              |  | 1,741,055          |   |  | 2,096,091    |   |  | 65,605      |  
|Available-for-sale financial assets, current                        |  | 2, 9              |  |                   |   |  | 6,250,694    |   |  | 195,640     |  
|Held-to-maturity financial assets, current                          |  | 2, 6              |  | 352,645            |   |  |             |   |  |            |  
|Notes receivable                                                    |  |                   |  | 19,680             |   |  | 429,762      |   |  | 13,451      |  
|Accounts receivable, net                                            |  | 2, 7              |  | 8,388,232          |   |  | 16,417,801   |   |  | 513,859     |  
|Accounts receivable-related parties, net                            |  | 2, 27             |  | 147,363            |   |  | 240,708      |   |  | 7,534       |  
|Other receivables                                                   |  |                   |  | 406,298            |   |  | 401,783      |   |  | 12,576      |  
|Inventories, net                                                    |  | 2, 3, 8           |  | 8,117,603          |   |  | 9,141,385    |   |  | 286,115     |  
|Prepaid expenses                                                    |  |                   |  | 473,920            |   |  | 692,509      |   |  | 21,675      |  
|Deferred income tax assets, current                                 |  | 2, 25             |  | 674,117            |   |  | 538,923      |   |  | 16,868      |  
|                                                                    |  |                   |  |                    |   |  |              |   |  |             |  
|Total current assets                                                |  |                   |  | 68,887,562         |   |  | 102,362,616  |   |  | 3,203,838   |  
|                                                                    |  |                   |  |                    |   |  |              |   |  |             |  
|Funds and investments                                               |  |                   |  |                    |   |  |              |   |  |             |  
|Financial assets at fair value through profit or loss, noncurrent   |  | 2, 5              |  | 173,560            |   |  |             |   |  |            |  
|Available-for-sale financial assets, noncurrent                     |  | 2, 9, 14          |  | 16,283,917         |   |  | 35,106,942   |   |  | 1,098,809   |  
|Financial assets measured at cost, noncurrent                       |  | 2, 10, 14         |  | 7,656,688          |   |  | 7,628,523    |   |  | 238,764     |  
|Long-term investments accounted for under the equity method         |  | 2, 11             |  | 8,321,221          |   |  | 12,168,942   |   |  | 380,875     |  
|Prepayment for long-term investments                                |  |                   |  | 5,160              |   |  | 322,290      |   |  | 10,087      |  
|                                                                    |  |                   |  |                    |   |  |              |   |  |             |  
|Total funds and investments                                         |  |                   |  | 32,440,546         |   |  | 55,226,697   |   |  | 1,728,535   |  
|                                                                    |  |                   |  |                    |   |  |              |   |  |             |  
|Property, plant and equipment                                       |  | 2, 12, 14, 28, 29 |  |                    |   |  |              |   |  |             |  
|Land                                                                |  |                   |  | 2,269,237          |   |  | 1,056,823    |   |  | 33,077      |  
|Buildings                                                           |  |                   |  | 24,354,334         |   |  | 21,097,255   |   |  | 660,321     |  
|Machinery and equipment                                             |  |                   |  | 459,711,569        |   |  | 453,597,613  |   |  | 14,197,108  |  
|Transportation equipment                                            |  |                   |  | 76,742             |   |  | 68,580       |   |  | 2,146       |  
|Furniture and fixtures                                              |  |                   |  | 3,582,387          |   |  | 3,324,352    |   |  | 104,049     |  
|Leasehold improvements                                              |  |                   |  | 53,432             |   |  | 53,411       |   |  | 1,672       |  
|                                                                    |  |                   |  |                    |   |  |              |   |  |             |  
|Total cost                                                          |  |                   |  | 490,047,701        |   |  | 479,198,034  |   |  | 14,998,373  |  
|Less: Accumulated depreciation                                      |  |                   |  | (386,537,318       | ) |  | (405,899,110 | ) |  | (12,704,197 | )
|Less: Accumulated impairment                                        |  |                   |  |                   |   |  | (1,868,968   | ) |  | (58,497     | )
|Add: Construction in progress and prepayments                       |  |                   |  | 4,899,607          |   |  | 18,166,404   |   |  | 568,589     |  
|                                                                    |  |                   |  |                    |   |  |              |   |  |             |  
|Property, plant and equipment, net                                  |  |                   |  | 108,409,990        |   |  | 89,596,360   |   |  | 2,804,268   |  
|                                                                    |  |                   |  |                    |   |  |              |   |  |             |  
|Goodwill                                                            |  | 2, 14             |  | 7,615              |   |  | 7,615        |   |  | 238         |  
|Deferred charges                                                    |  | 2                 |  | 913,237            |   |  | 1,368,418    |   |  | 42,830      |  
|Deferred income tax assets, noncurrent                              |  | 2, 25             |  | 3,557,781          |   |  | 3,152,277    |   |  | 98,663      |  
|Other assets-others                                                 |  | 2, 13, 14, 28     |  | 2,181,777          |   |  | 1,924,468    |   |  | 60,234      |  
|                                                                    |  |                   |  |                    |   |  |              |   |  |             |  
|Total assets                                                        |  |                   |  | 216,398,508        |   |  | 253,638,451  |   |  | 7,938,606   |  
|                                                                    |  |                   |  |                    |   |  |              |   |  |             |  
|Liabilities and Stockholders Equity                                |  |                   |  |                    |   |  |              |   |  |             |  
|Current liabilities                                                 |  |                   |  |                    |   |  |              |   |  |             |  
|Short-term loans                                                    |  | 15                |  | 132,610            |   |  | 128,682      |   |  | 4,028       |  
|Financial liabilities at fair value through profit or loss, current |  | 2, 16             |  | 33,189             |   |  | 1,914,879    |   |  | 59,934      |  
|Accounts payable                                                    |  |                   |  | 2,591,578          |   |  | 5,505,895    |   |  | 172,328     |  
|Income tax payable                                                  |  | 2                 |  | 775,611            |   |  | 181,173      |   |  | 5,671       |  
|Accrued expenses                                                    |  | 2, 24             |  | 7,008,700          |   |  | 8,611,231    |   |  | 269,522     |  
|Payable on equipment                                                |  |                   |  | 1,718,134          |   |  | 5,487,908    |   |  | 171,765     |  
|Current portion of long-term liabilities                            |  | 2, 17, 18         |  | 66,667             |   |  | 12,800,587   |   |  | 400,644     |  
|Other current liabilities                                           |  |                   |  | 694,821            |   |  | 609,821      |   |  | 19,087      |  
|Deferred income tax liabilities, current                            |  | 2, 25             |  | 11,943             |   |  | 5,700        |   |  | 178         |  
|                                                                    |  |                   |  |                    |   |  |              |   |  |             |  
|Total current liabilities                                           |  |                   |  | 13,033,253         |   |  | 35,245,876   |   |  | 1,103,157   |  
|                                                                    |  |                   |  |                    |   |  |              |   |  |             |  
|Long-term liabilities                                               |  |                   |  |                    |   |  |              |   |  |             |  
|Bonds payable                                                       |  | 2, 17             |  | 7,497,110          |   |  |             |   |  |            |  
|Long-term loans                                                     |  | 18, 28            |  | 633,333            |   |  | 766,550      |   |  | 23,992      |  
|Accrued pension liabilities                                         |  | 2, 19             |  | 3,219,092          |   |  | 3,261,457    |   |  | 102,080     |  
|Deposits-in                                                         |  |                   |  | 9,984              |   |  | 15,217       |   |  | 476         |  
|Deferred income tax liabilities, noncurrent                         |  | 2, 25             |  | 13,602             |   |  | 9,751        |   |  | 305         |  
|Other liabilities-others                                            |  | 11                |  | 333,840            |   |  | 243,344      |   |  | 7,617       |  
|                                                                    |  |                   |  |                    |   |  |              |   |  |             |  
|Total long-term liabilities                                         |  |                   |  | 11,706,961         |   |  | 4,296,319    |   |  | 134,470     |  
|                                                                    |  |                   |  |                    |   |  |              |   |  |             |  
|Total liabilities                                                   |  |                   |  | 24,740,214         |   |  | 39,542,195   |   |  | 1,237,627   |  
|                                                                    |  |                   |  |                    |   |  |              |   |  |             |  
|Commitments and Contingent                                          |  | 29                |  |                    |   |  |              |   |  |             |  
|Capital Stock                                                       |  | 2, 20, 23         |  | 129,877,713        |   |  | 129,877,713  |   |  | 4,065,030   |  
|Additional Paid-in Capital                                          |  | 2, 11, 20, 21, 23 |  | 58,149,513         |   |  | 44,365,049   |   |  | 1,388,578   |  
|Retained earnings                                                   |  | 2, 11, 20, 23     |  | (7,036,551         | ) |  | 10,648,813   |   |  | 333,296     |  
|Cumulative translation adjustment                                   |  | 2, 11             |  | 1,347,373          |   |  | (318,188     | ) |  | (9,959      | )
|Unrealized gain or loss on financial instruments                    |  | 2, 9              |  | 2,457,922          |   |  | 30,915,079   |   |  | 967,608     |  
|Treasury stock                                                      |  | 2, 20, 22         |  | (119,801           | ) |  | (1,890,145   | ) |  | (59,159     | )
|                                                                    |  |                   |  |                    |   |  |              |   |  |             |  
|Total stockholders equity of the Company                           |  |                   |  | 184,676,169        |   |  | 213,598,321  |   |  | 6,685,394   |  
|                                                                    |  |                   |  |                    |   |  |              |   |  |             |  
|Minority interests                                                  |  |                   |  | 6,982,125          |   |  | 497,935      |   |  | 15,585      |  
|                                                                    |  |                   |  |                    |   |  |              |   |  |             |  
|Total stockholders equity                                          |  |                   |  | 191,658,294        |   |  | 214,096,256  |   |  | 6,700,979   |  
|                                                                    |  |                   |  |                    |   |  |              |   |  |             |  
|Total liabilities and stockholders equity                          |  |                   |  | 216,398,508        |   |  | 253,638,451  |   |  | 7,938,606   |  
|                                                                    |  |                   |  |                    |   |  |              |   |  |             |  



F-3



---

##### Table of Contents

UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF INCOME

(Expressed in Thousands, Except for Earnings per Share)



|                                                           |  |                 |  |                                  |   |  |             |   |  |             |   |  |            |  
|---------------------------------------------------------- |  | --------------- |  | -------------------------------- | - |  | ----------- | - |  | ----------- | - |  | ---------- | -
|                                                           |  |                 |  | For the years ended December 31, |  
|                                                           |  | Notes           |  | 2007                             |   |  | 2008        |   |  | 2009        |  
|                                                           |  |                 |  | NT$                              |   |  | NT$         |   |  | NT$         |   |  | US$        |  
|Net operating revenues                                     |  | 2, 27           |  | 113,311,298                      |   |  | 96,813,546  |   |  | 91,389,765  |   |  | 2,860,400  |  
|Cost of goods sold                                         |  | 2, 3, 8, 21, 24 |  | (90,071,674                      | ) |  | (84,101,685 | ) |  | (75,974,607 | ) |  | (2,377,922 | )
|                                                           |  |                 |  |                                  |   |  |             |   |  |             |   |  |            |  
|Gross profit                                               |  |                 |  | 23,239,624                       |   |  | 12,711,861  |   |  | 15,415,158  |   |  | 482,478    |  
|                                                           |  |                 |  |                                  |   |  |             |   |  |             |   |  |            |  
|Operating expenses                                         |  | 2, 21, 24       |  |                                  |   |  |             |   |  |             |   |  |            |  
|Sales and marketing expenses                               |  |                 |  | (4,068,984                       | ) |  | (3,483,628  | ) |  | (2,800,226  | ) |  | (87,644    | )
|General and administrative expenses                        |  |                 |  | (3,723,916                       | ) |  | (3,054,683  | ) |  | (2,723,288  | ) |  | (85,236    | )
|Research and development expenses                          |  | 2               |  | (9,631,227                       | ) |  | (8,274,070  | ) |  | (8,044,155  | ) |  | (251,773   | )
|                                                           |  |                 |  |                                  |   |  |             |   |  |             |   |  |            |  
|                                                           |  |                 |  | (17,424,127                      | ) |  | (14,812,381 | ) |  | (13,567,669 | ) |  | (424,653   | )
|                                                           |  |                 |  |                                  |   |  |             |   |  |             |   |  |            |  
|Operating income (loss)                                    |  |                 |  | 5,815,497                        |   |  | (2,100,520  | ) |  | 1,847,489   |   |  | 57,825     |  
|                                                           |  |                 |  |                                  |   |  |             |   |  |             |   |  |            |  
|Non-operating income                                       |  |                 |  |                                  |   |  |             |   |  |             |   |  |            |  
|Interest revenue                                           |  |                 |  | 1,330,418                        |   |  | 686,268     |   |  | 170,495     |   |  | 5,336      |  
|Investment gain accounted for under the equity method, net |  | 2, 11           |  | 625,752                          |   |  |            |   |  | 180,263     |   |  | 5,642      |  
|Dividend income                                            |  |                 |  | 2,171,720                        |   |  | 2,093,528   |   |  | 941,170     |   |  | 29,458     |  
|Gain on disposal of property, plant and equipment          |  | 2               |  | 669,076                          |   |  | 88,930      |   |  | 12,721      |   |  | 398        |  
|Gain on disposal of investments                            |  | 2               |  | 12,040,872                       |   |  | 3,386,004   |   |  | 1,965,468   |   |  | 61,517     |  
|Exchange gain, net                                         |  | 2               |  | 137,414                          |   |  | 381,696     |   |  |            |   |  |           |  
|Gain on valuation of financial assets                      |  | 2, 5            |  |                                 |   |  |            |   |  | 512,586     |   |  | 16,043     |  
|Gain on valuation of financial liabilities                 |  | 2               |  | 20,633                           |   |  |            |   |  |            |   |  |           |  
|Other income                                               |  | 3               |  | 864,847                          |   |  | 905,520     |   |  | 1,258,535   |   |  | 39,391     |  
|                                                           |  |                 |  |                                  |   |  |             |   |  |             |   |  |            |  
|                                                           |  |                 |  | 17,860,732                       |   |  | 7,541,946   |   |  | 5,041,238   |   |  | 157,785    |  
|                                                           |  |                 |  |                                  |   |  |             |   |  |             |   |  |            |  
|Non-operating expenses                                     |  |                 |  |                                  |   |  |             |   |  |             |   |  |            |  
|Interest expense                                           |  | 2, 12           |  | (181,262                         | ) |  | (71,161     | ) |  | (58,255     | ) |  | (1,823     | )
|Investment loss accounted for under the equity method, net |  | 2, 11           |  |                                 |   |  | (10,464,849 | ) |  |            |   |  |           |  
|Loss on disposal of property, plant and equipment          |  | 2               |  | (124,071                         | ) |  | (33,559     | ) |  | (2,529      | ) |  | (79        | )
|Exchange loss, net                                         |  | 2               |  |                                 |   |  |            |   |  | (135,202    | ) |  | (4,232     | )
|Financial expenses                                         |  |                 |  | (137,134                         | ) |  | (90,735     | ) |  | (90,957     | ) |  | (2,847     | )
|Impairment loss                                            |  | 2, 14           |  | (575,784                         | ) |  | (13,179,858 | ) |  | (4,007,078  | ) |  | (125,417   | )
|Loss on valuation of financial assets                      |  | 2, 5            |  | (2,788,343                       | ) |  | (2,397,962  | ) |  |            |   |  |           |  
|Loss on valuation of financial liabilities                 |  | 2, 16           |  |                                 |   |  | (1,046,081  | ) |  | (822,321    | ) |  | (25,738    | )
|Other losses                                               |  |                 |  | (199,292                         | ) |  | (143,392    | ) |  | (99,385     | ) |  | (3,111     | )
|                                                           |  |                 |  |                                  |   |  |             |   |  |             |   |  |            |  
|                                                           |  |                 |  | (4,005,886                       | ) |  | (27,427,597 | ) |  | (5,215,727  | ) |  | (163,247   | )
|                                                           |  |                 |  |                                  |   |  |             |   |  |             |   |  |            |  
|Income (loss) before income tax and minority interests     |  |                 |  | 19,670,343                       |   |  | (21,986,171 | ) |  | 1,673,000   |   |  | 52,363     |  
|Income tax expense                                         |  | 2, 25           |  | (2,809,874                       | ) |  | (996,921    | ) |  | (651,068    | ) |  | (20,378    | )
|Extraordinary gain                                         |  | 33              |  |                                 |   |  |            |   |  | 648,958     |   |  | 20,312     |  
|                                                           |  |                 |  |                                  |   |  |             |   |  |             |   |  |            |  
|Net income (loss)                                          |  |                 |  | 16,860,469                       |   |  | (22,983,092 | ) |  | 1,670,890   |   |  | 52,297     |  
|                                                           |  |                 |  |                                  |   |  |             |   |  |             |   |  |            |  
|                                                           |  |                 |  |                                  |  
|Attributable to:                                           |  |                 |  |                                  |   |  |             |   |  |             |   |  |            |  
|the Company                                                |  |                 |  | 16,961,762                       |   |  | (22,320,075 | ) |  | 3,874,028   |   |  | 121,253    |  
|Minority interests                                         |  |                 |  | (101,293                         | ) |  | (663,017    | ) |  | (2,203,138  | ) |  | (68,956    | )
|                                                           |  |                 |  |                                  |   |  |             |   |  |             |   |  |            |  
|Net income (loss)                                          |  |                 |  | 16,860,469                       |   |  | (22,983,092 | ) |  | 1,670,890   |   |  | 52,297     |  
|                                                           |  |                 |  |                                  |   |  |             |   |  |             |   |  |            |  
|                                                           |  |                 |  |                                  |  
|Earnings (losses) per share-basic (in dollars)             |  | 2, 26           |  | 1.03                             |   |  | (1.70       | ) |  | 0.31        |   |  |            |  
|                                                           |  |                 |  |                                  |   |  |             |   |  |             |   |  |            |  
|Shares used in per share calculation-basic                 |  |                 |  | 16,464,412                       |   |  | 13,110,984  |   |  | 12,699,072  |   |  |            |  
|                                                           |  |                 |  |                                  |   |  |             |   |  |             |   |  |            |  
|Earnings (losses) per share-diluted (in dollars)           |  | 2, 26           |  | 1.00                             |   |  | (1.70       | ) |  | 0.30        |   |  |            |  
|                                                           |  |                 |  |                                  |   |  |             |   |  |             |   |  |            |  
|Shares used in per share calculation-diluted               |  |                 |  | 16,943,404                       |   |  | 13,170,391  |   |  | 12,786,448  |   |  |            |  
|                                                           |  |                 |  |                                  |   |  |             |   |  |             |   |  |            |  



F-4



---

##### Table of Contents

UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS EQUITY

(Expressed in Thousands)



|                                                                               |  |              |   |  |            |   |  |                     |   |  |                            |   |  |               |  |                |  |                        |   |  |                                 |   |  |                                            |   |  |               |   |  |                   |   |  |             |  
|------------------------------------------------------------------------------ |  | ------------ | - |  | ---------- | - |  | ------------------- | - |  | -------------------------- | - |  | ------------- |  | -------------- |  | ---------------------- | - |  | ------------------------------- | - |  | ------------------------------------------ | - |  | ------------- | - |  | ----------------- | - |  | ----------- | -
|                                                                               |  | Capital      |   |  |            |   |  | Retained Earnings   |   |  |                            |   |  |               |  |                |  |                        |   |  |                                 |   |  |                                           
|                                                                               |  | Common Stock |   |  | Shares     |   |  | Collected inAdvance |   |  | Additional 
Paid-inCapital |   |  | Legal Reserve |  | SpecialReserve |  | UnappropriatedEarnings |   |  | CumulativeTranslationAdjustment |   |  | UnrealizedGain/Loss onFinancialInstruments |   |  | TreasuryStock |   |  | MinorityInterests |   |  | Total       |  
|                                                                               |  | NT$          |   |  |            |   |  | NT$                 |   |  | NT$                        |   |  | NT$           |  | NT$            |  | NT$                    |   |  | NT$                             |   |  | NT$                                        |   |  | NT$           |   |  | NT$               |   |  | NT$         |  
|Balance as of January 1, 2007                                                  |  | 191,311,927  |   |  | 19,131,193 |   |  | 11,405              |   |  | 67,707,287                 |   |  | 16,699,508    |  | 322,150        |  | 17,774,335             |   |  | (824,922                        | ) |  | 27,557,845                                 |   |  | (29,394,664   | ) |  | 6,238,018         |   |  | 297,402,889 |  
|Appropriation of 2006 retained earnings                                        |  |              |   |  |            |   |  |                     |   |  |                            |   |  |               |  |                |  |                        |   |  |                                 |   |  |                                            |   |  |               |   |  |                   |   |  |             |  
|Legal reserve                                                                  |  |             |   |  |           |   |  |                    |   |  |                           |   |  | 1,777,434     |  |               |  | (1,777,434             | ) |  |                                |   |  |                                           |   |  |              |   |  |                  |   |  |            |  
|Special reserve                                                                |  |             |   |  |           |   |  |                    |   |  |                           |   |  |              |  | 502,772        |  | (502,772               | ) |  |                                |   |  |                                           |   |  |              |   |  |                  |   |  |            |  
|Cash dividends                                                                 |  |             |   |  |           |   |  |                    |   |  |                           |   |  |              |  |               |  | (12,461,529            | ) |  |                                |   |  |                                           |   |  |              |   |  |                  |   |  | (12,461,529 | )
|Remuneration to directors and supervisors                                      |  |             |   |  |           |   |  |                    |   |  |                           |   |  |              |  |               |  | (15,494                | ) |  |                                |   |  |                                           |   |  |              |   |  |                  |   |  | (15,494     | )
|Employee bonus-cash                                                            |  |             |   |  |           |   |  |                    |   |  |                           |   |  |              |  |               |  | (2,324,120             | ) |  |                                |   |  |                                           |   |  |              |   |  |                  |   |  | (2,324,120  | )
|Capital reduction                                                              |  | (57,393,578  | ) |  | (5,739,358 | ) |  |                    |   |  | (1,142,437                 | ) |  |              |  |               |  | (2,650,494             | ) |  |                                |   |  |                                           |   |  | 7,275,517     |   |  |                  |   |  | (53,910,992 | )
|Adjustment of treasury stock held by subsidiary due to capital reduction       |  |             |   |  |           |   |  |                    |   |  | 14,789                     |   |  |              |  |               |  |                       |   |  |                                |   |  |                                           |   |  | 52,039        |   |  |                  |   |  | 66,828      |  
|Treasury stock retired                                                         |  | (1,920,670   | ) |  | (192,067   | ) |  |                    |   |  | (622,323                   | ) |  |              |  |               |  | (2,655,027             | ) |  |                                |   |  |                                           |   |  | 5,198,020     |   |  |                  |   |  |            |  
|Treasury stock sold to employees                                               |  |             |   |  |           |   |  |                    |   |  | 182                        |   |  |              |  |               |  |                       |   |  |                                |   |  |                                           |   |  | 1,865,841     |   |  |                  |   |  | 1,866,023   |  
|Net income in 2007                                                             |  |             |   |  |           |   |  |                    |   |  |                           |   |  |              |  |               |  | 16,961,762             |   |  |                                |   |  |                                           |   |  |              |   |  | (101,293          | ) |  | 16,860,469  |  
|Adjustment of additional paid-in capital accounted for under the equity method |  |             |   |  |           |   |  |                    |   |  | 51,867                     |   |  |              |  |               |  |                       |   |  |                                |   |  |                                           |   |  |              |   |  |                  |   |  | 51,867      |  
|Adjustment of funds and investments disposal                                   |  |             |   |  |           |   |  |                    |   |  | 11,310                     |   |  |              |  |               |  |                       |   |  | (150                            | ) |  |                                           |   |  |              |   |  |                  |   |  | 11,160      |  
|Cash dividends allocated to subsidiaries                                       |  |             |   |  |           |   |  |                    |   |  | 15,541                     |   |  |              |  |               |  |                       |   |  |                                |   |  |                                           |   |  |              |   |  |                  |   |  | 15,541      |  
|Changes in unrealized loss on available-for-sale financial assets              |  |             |   |  |           |   |  |                    |   |  |                           |   |  |              |  |               |  |                       |   |  |                                |   |  | (2,539,032                                 | ) |  |              |   |  |                  |   |  | (2,539,032  | )
|Changes in unrealized loss on financial instruments of investees               |  |             |   |  |           |   |  |                    |   |  |                           |   |  |              |  |               |  |                       |   |  |                                |   |  | (2,604,961                                 | ) |  |              |   |  |                  |   |  | (2,604,961  | )
|Exercise of employee stock options                                             |  | 135,865      |   |  | 13,586     |   |  |                    |   |  | 90,590                     |   |  |              |  |               |  |                       |   |  |                                |   |  |                                           |   |  |              |   |  |                  |   |  | 226,455     |  
|Common stock transferred from capital collected in advance                     |  | 11,405       |   |  | 1,141      |   |  | (11,405             | ) |  |                           |   |  |              |  |               |  |                       |   |  |                                |   |  |                                           |   |  |              |   |  |                  |   |  |            |  
|Changes in cumulative translation adjustment                                   |  |             |   |  |           |   |  |                    |   |  |                           |   |  |              |  |               |  |                       |   |  | (41,490                         | ) |  |                                           |   |  |              |   |  |                  |   |  | (41,490     | )
|Changes in minority interests                                                  |  |             |   |  |           |   |  |                    |   |  |                           |   |  |              |  |               |  |                       |   |  |                                |   |  |                                           |   |  |              |   |  | 394,085           |   |  | 394,085     |  
|                                                                               |  |              |   |  |            |   |  |                     |   |  |                            |   |  |               |  |                |  |                        |   |  |                                 |   |  |                                            |   |  |               |   |  |                   |   |  |             |  
|Balance as of December 31, 2007                                                |  | 132,144,949  |   |  | 13,214,495 |   |  |                    |   |  | 66,126,806                 |   |  | 18,476,942    |  | 824,922        |  | 12,349,227             |   |  | (866,562                        | ) |  | 22,413,852                                 |   |  | (15,003,247   | ) |  | 6,530,810         |   |  | 242,997,699 |  
|                                                                               |  |              |   |  |            |   |  |                     |   |  |                            |   |  |               |  |                |  |                        |   |  |                                 |   |  |                                            |   |  |               |   |  |                   |   |  |             |  



F-5



---

##### Table of Contents

UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS EQUITY

(Expressed in Thousands)



|                                                                               |  |              |   |  |            |   |                   |                     |  |                            |   |  |               |  |                |   |  |                                            |   |  |                                 |   |  |                                            |   |  |               |   |  |                   |   |  |             |  
|------------------------------------------------------------------------------ |  | ------------ | - |  | ---------- | - | ----------------- | ------------------- |  | -------------------------- | - |  | ------------- |  | -------------- | - |  | ------------------------------------------ | - |  | ------------------------------- | - |  | ------------------------------------------ | - |  | ------------- | - |  | ----------------- | - |  | ----------- | -
|                                                                               |  | Capital      |   |  |            |   | Retained Earnings |                     |  |                            |   |  |               |  |                |   |  |                                            |   |  |                                 |   | 
|                                                                               |  | Common Stock |   |  | Shares     |   |                   | Collected inAdvance |  | Additional 
Paid-inCapital |   |  | Legal Reserve |  | SpecialReserve |   |  | UnappropriatedEarnings(Accumulateddeficit) |   |  | CumulativeTranslationAdjustment |   |  | UnrealizedGain/Loss onFinancialInstruments |   |  | TreasuryStock |   |  | MinorityInterests |   |  | Total       |  
|                                                                               |  | NT$          |   |  |            |   |                   | NT$                 |  | NT$                        |   |  | NT$           |  | NT$            |   |  | NT$                                        |   |  | NT$                             |   |  | NT$                                        |   |  | NT$           |   |  | NT$               |   |  | NT$         |  
|Balance as of January 1, 2008                                                  |  | 132,144,949  |   |  | 13,214,495 |   |                   |                    |  | 66,126,806                 |   |  | 18,476,942    |  | 824,922        |   |  | 12,349,227                                 |   |  | (866,562                        | ) |  | 22,413,852                                 |   |  | (15,003,247   | ) |  | 6,530,810         |   |  | 242,997,699 |  
|Appropriation of 2007 retained earnings                                        |  |              |   |  |            |   |                   |                     |  |                            |   |  |               |  |                |   |  |                                            |   |  |                                 |   |  |                                            |   |  |               |   |  |                   |   |  |             |  
|Legal reserve                                                                  |  |             |   |  |           |   |                   |                    |  |                           |   |  | 1,234,923     |  |               |   |  | (1,234,923                                 | ) |  |                                |   |  |                                           |   |  |              |   |  |                  |   |  |            |  
|Special reserve                                                                |  |             |   |  |           |   |                   |                    |  |                           |   |  |              |  | (824,922       | ) |  | 824,922                                    |   |  |                                |   |  |                                           |   |  |              |   |  |                  |   |  |            |  
|Cash dividends                                                                 |  |             |   |  |           |   |                   |                    |  |                           |   |  |              |  |               |   |  | (9,382,647                                 | ) |  |                                |   |  |                                           |   |  |              |   |  |                  |   |  | (9,382,647  | )
|Stock dividends                                                                |  | 1,000,816    |   |  | 100,081    |   |                   |                    |  |                           |   |  |              |  |               |   |  | (1,000,816                                 | ) |  |                                |   |  |                                           |   |  |              |   |  |                  |   |  |            |  
|Remuneration to directors and supervisors                                      |  |             |   |  |           |   |                   |                    |  |                           |   |  |              |  |               |   |  | (11,939                                    | ) |  |                                |   |  |                                           |   |  |              |   |  |                  |   |  | (11,939     | )
|Employee bonus-cash                                                            |  |             |   |  |           |   |                   |                    |  |                           |   |  |              |  |               |   |  | (286,541                                   | ) |  |                                |   |  |                                           |   |  |              |   |  |                  |   |  | (286,541    | )
|Employee bonus-stock                                                           |  | 1,146,166    |   |  | 114,617    |   |                   |                    |  |                           |   |  |              |  |               |   |  | (1,146,166                                 | ) |  |                                |   |  |                                           |   |  |              |   |  |                  |   |  |            |  
|Additional paid-in capital transferred to common stock                         |  | 4,628,772    |   |  | 462,877    |   |                   |                    |  | (4,628,772                 | ) |  |              |  |               |   |  |                                           |   |  |                                |   |  |                                           |   |  |              |   |  |                  |   |  |            |  
|Treasury stock acquired                                                        |  |             |   |  |           |   |                   |                    |  |                           |   |  |              |  |               |   |  |                                           |   |  |                                |   |  |                                           |   |  | (2,278,456    | ) |  |                  |   |  | (2,278,456  | )
|Treasury stock retired                                                         |  | (9,042,990   | ) |  | (904,299   | ) |                   |                    |  | (3,579,454                 | ) |  |              |  |               |   |  | (4,539,458                                 | ) |  |                                |   |  |                                           |   |  | 17,161,902    |   |  |                  |   |  |            |  
|Net loss in 2008                                                               |  |             |   |  |           |   |                   |                    |  |                           |   |  |              |  |               |   |  | (22,320,075                                | ) |  |                                |   |  |                                           |   |  |              |   |  | (663,017          | ) |  | (22,983,092 | )
|Adjustment of additional paid-in capital accounted for under the equity method |  |             |   |  |           |   |                   |                    |  | 202,610                    |   |  |              |  |               |   |  |                                           |   |  |                                |   |  |                                           |   |  |              |   |  |                  |   |  | 202,610     |  
|Adjustment of funds and investments disposal                                   |  |             |   |  |           |   |                   |                    |  | 16,783                     |   |  |              |  |               |   |  |                                           |   |  | (267                            | ) |  |                                           |   |  |              |   |  |                  |   |  | 16,516      |  
|Cash dividends allocated to subsidiaries                                       |  |             |   |  |           |   |                   |                    |  | 11,540                     |   |  |              |  |               |   |  |                                           |   |  |                                |   |  |                                           |   |  |              |   |  |                  |   |  | 11,540      |  
|Changes in unrealized loss on available-for-sale financial assets              |  |             |   |  |           |   |                   |                    |  |                           |   |  |              |  |               |   |  |                                           |   |  |                                |   |  | (21,771,498                                | ) |  |              |   |  |                  |   |  | (21,771,498 | )
|Changes in unrealized gain on financial instruments of investees               |  |             |   |  |           |   |                   |                    |  |                           |   |  |              |  |               |   |  |                                           |   |  |                                |   |  | 1,815,568                                  |   |  |              |   |  |                  |   |  | 1,815,568   |  
|Changes in cumulative translation adjustment                                   |  |             |   |  |           |   |                   |                    |  |                           |   |  |              |  |               |   |  |                                           |   |  | 2,214,202                       |   |  |                                           |   |  |              |   |  |                  |   |  | 2,214,202   |  
|Changes in minority interests                                                  |  |             |   |  |           |   |                   |                    |  |                           |   |  |              |  |               |   |  |                                           |   |  |                                |   |  |                                           |   |  |              |   |  | 1,114,332         |   |  | 1,114,332   |  
|                                                                               |  |              |   |  |            |   |                   |                     |  |                            |   |  |               |  |                |   |  |                                            |   |  |                                 |   |  |                                            |   |  |               |   |  |                   |   |  |             |  
|Balance as of December 31, 2008                                                |  | 129,877,713  |   |  | 12,987,771 |   |                   |                    |  | 58,149,513                 |   |  | 19,711,865    |  |               |   |  | (26,748,416                                | ) |  | 1,347,373                       |   |  | 2,457,922                                  |   |  | (119,801      | ) |  | 6,982,125         |   |  | 191,658,294 |  
|                                                                               |  |              |   |  |            |   |                   |                     |  |                            |   |  |               |  |                |   |  |                                            |   |  |                                 |   |  |                                            |   |  |               |   |  |                   |   |  |             |  



F-6



---

##### Table of Contents

UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS EQUITY

(Expressed in Thousands)



|                                                                                |  |              |  |            |  |                     |                   |                            |   |  |              |   |  |                |  |                                            |   |  |                                 |   |  |                                             |   |  |               |   |  |                   |   |  |             |  
|------------------------------------------------------------------------------- |  | ------------ |  | ---------- |  | ------------------- | ----------------- | -------------------------- | - |  | ------------ | - |  | -------------- |  | ------------------------------------------ | - |  | ------------------------------- | - |  | ------------------------------------------- | - |  | ------------- | - |  | ----------------- | - |  | ----------- | -
|                                                                                |  | Capital      |  |            |  |                     | Retained Earnings |                            |   |  |              |   |  |                |  |                                            |   |  |                                 |   |  |                                             |  
|                                                                                |  | Common Stock |  | Shares     |  | Collected inAdvance |                   | Additional 
Paid-inCapital |   |  | LegalReserve |   |  | SpecialReserve |  | UnappropriatedEarnings(Accumulateddeficit) |   |  | CumulativeTranslationAdjustment |   |  | UnrealizedGain/Loss 
onFinancialInstruments |   |  | TreasuryStock |   |  | MinorityInterests |   |  | Total       |  
|                                                                                |  | NT$          |  |            |  | NT$                 |                   | NT$                        |   |  | NT$          |   |  | NT$            |  | NT$                                        |   |  | NT$                             |   |  | NT$                                         |   |  | NT$           |   |  | NT$               |   |  | NT$         |  
|Balance as of January 1, 2009                                                   |  | 129,877,713  |  | 12,987,771 |  |                    |                   | 58,149,513                 |   |  | 19,711,865   |   |  |               |  | (26,748,416                                | ) |  | 1,347,373                       |   |  | 2,457,922                                   |   |  | (119,801      | ) |  | 6,982,125         |   |  | 191,658,294 |  
|Treasury stock acquired                                                         |  |             |  |           |  |                    |                   |                           |   |  |             |   |  |               |  |                                           |   |  |                                |   |  |                                            |   |  | (2,393,337    | ) |  |                  |   |  | (2,393,337  | )
|Legal reserve and additional paid-in capital used to cover accumulated deficits |  |             |  |           |  |                    |                   | (7,036,551                 | ) |  | (19,711,865  | ) |  |               |  | 26,748,416                                 |   |  |                                |   |  |                                            |   |  |              |   |  |                  |   |  |            |  
|Net income in 2009                                                              |  |             |  |           |  |                    |                   |                           |   |  |             |   |  |               |  | 3,874,028                                  |   |  |                                |   |  |                                            |   |  |              |   |  | (2,203,138        | ) |  | 1,670,890   |  
|Compensation cost of employee stock options                                     |  |             |  |           |  |                    |                   | 136,306                    |   |  |             |   |  |               |  |                                           |   |  |                                |   |  |                                            |   |  |              |   |  |                  |   |  | 136,306     |  
|Treasury stock sold to employees                                                |  |             |  |           |  |                    |                   | 26,147                     |   |  |             |   |  |               |  |                                           |   |  |                                |   |  |                                            |   |  | 622,993       |   |  |                  |   |  | 649,140     |  
|Adjustment of additional paid-in capital accounted for under the equity method  |  |             |  |           |  |                    |                   | (6,911,617                 | ) |  |             |   |  |               |  |                                           |   |  |                                |   |  |                                            |   |  |              |   |  |                  |   |  | (6,911,617  | )
|Adjustment of funds and investments disposal                                    |  |             |  |           |  |                    |                   | 1,251                      |   |  |             |   |  |               |  |                                           |   |  | (991                            | ) |  | (10,592                                     | ) |  |              |   |  |                  |   |  | (10,332     | )
|Adjustment of retained earnings accounted for under the equity method           |  |             |  |           |  |                    |                   |                           |   |  |             |   |  |               |  | 6,774,785                                  |   |  |                                |   |  |                                            |   |  |              |   |  |                  |   |  | 6,774,785   |  
|Changes in unrealized gain on available-for-sale financial assets               |  |             |  |           |  |                    |                   |                           |   |  |             |   |  |               |  |                                           |   |  |                                |   |  | 20,143,875                                  |   |  |              |   |  |                  |   |  | 20,143,875  |  
|Changes in unrealized gain on financial instruments of investees                |  |             |  |           |  |                    |                   |                           |   |  |             |   |  |               |  |                                           |   |  |                                |   |  | 8,323,874                                   |   |  |              |   |  |                  |   |  | 8,323,874   |  
|Changes in cumulative translation adjustment                                    |  |             |  |           |  |                    |                   |                           |   |  |             |   |  |               |  |                                           |   |  | (1,664,570                      | ) |  |                                            |   |  |              |   |  |                  |   |  | (1,664,570  | )
|Changes in minority interests                                                   |  |             |  |           |  |                    |                   |                           |   |  |             |   |  |               |  |                                           |   |  |                                |   |  |                                            |   |  |              |   |  | (4,281,052        | ) |  | (4,281,052  | )
|                                                                                |  |              |  |            |  |                     |                   |                            |   |  |              |   |  |                |  |                                            |   |  |                                 |   |  |                                             |   |  |               |   |  |                   |   |  |             |  
|Balance as of December 31, 2009                                                 |  | 129,877,713  |  | 12,987,771 |  |                    |                   | 44,365,049                 |   |  |             |   |  |               |  | 10,648,813                                 |   |  | (318,188                        | ) |  | 30,915,079                                  |   |  | (1,890,145    | ) |  | 497,935           |   |  | 214,096,256 |  
|                                                                                |  |              |  |            |  |                     |                   |                            |   |  |              |   |  |                |  |                                            |   |  |                                 |   |  |                                             |   |  |               |   |  |                   |   |  |             |  



F-7



---

##### Table of Contents

UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS

(Expressed in Thousands)



|                                                                                         |  |                                  |   |  |             |   |  |             |   |  |           |  
|---------------------------------------------------------------------------------------- |  | -------------------------------- | - |  | ----------- | - |  | ----------- | - |  | --------- | -
|                                                                                         |  | For the years ended December 31, |  
|                                                                                         |  | 2007                             |   |  | 2008        |   |  | 2009        |  
|                                                                                         |  | NT$                              |   |  | NT$         |   |  | NT$         |   |  | US$       |  
|Cash flows from operating activities:                                                    |  |                                  |   |  |             |   |  |             |   |  |           |  
|Net income (loss) attributable to the Company                                            |  | 16,961,762                       |   |  | (22,320,075 | ) |  | 3,874,028   |   |  | 121,253   |  
|Net loss attributable to minority interests                                              |  | (101,293                         | ) |  | (663,017    | ) |  | (2,203,138  | ) |  | (68,956   | )
|Adjustments to reconcile net income (loss) to net cash provided by operating activities: |  |                                  |   |  |             |   |  |             |   |  |           |  
|Extraordinary gain                                                                       |  |                                 |   |  |            |   |  | (648,958    | ) |  | (20,312   | )
|Depreciation                                                                             |  | 37,829,718                       |   |  | 37,197,219  |   |  | 33,530,254  |   |  | 1,049,460 |  
|Amortization                                                                             |  | 1,383,794                        |   |  | 1,314,885   |   |  | 699,541     |   |  | 21,895    |  
|Bad debt expense (reversal)                                                              |  | 256                              |   |  | 95,348      |   |  | (22,225     | ) |  | (696      | )
|Loss (Gain) on decline (recovery) in market value and obsolescence of inventories        |  | 372,359                          |   |  | 3,273,425   |   |  | (2,414,592  | ) |  | (75,574   | )
|Loss on valuation of financial assets and liabilities                                    |  | 2,767,710                        |   |  | 3,444,043   |   |  | 309,735     |   |  | 9,695     |  
|Investment loss (gain) accounted for under the equity method                             |  | (625,752                         | ) |  | 10,464,849  |   |  | (180,263    | ) |  | (5,642    | )
|Cash dividends received under the equity method                                          |  | 660,050                          |   |  | 134,924     |   |  | 901         |   |  | 28        |  
|Gain on disposal of investments                                                          |  | (12,040,872                      | ) |  | (3,386,004  | ) |  | (1,965,468  | ) |  | (61,517   | )
|Gain on disposal of property, plant and equipment                                        |  | (545,005                         | ) |  | (55,371     | ) |  | (10,192     | ) |  | (319      | )
|Gain on disposal of non-current assets held for sale                                     |  |                                 |   |  |            |   |  | (91,413     | ) |  | (2,861    | )
|Gain on reacquisition of bonds                                                           |  | (6,205                           | ) |  |            |   |  |            |   |  |          |  
|Amortization of bond discounts                                                           |  | 58,461                           |   |  | 7,830       |   |  | 20,018      |   |  | 627       |  
|Exchange loss (gain) on financial assets and liabilities                                 |  | (45,182                          | ) |  | (43,865     | ) |  | 4,754       |   |  | 149       |  
|Exchange loss (gain) on long-term liabilities                                            |  | 127,417                          |   |  | (178,877    | ) |  | (27,466     | ) |  | (860      | )
|Write-off of deferred charges                                                            |  |                                 |   |  | 12,867      |   |  |            |   |  |          |  
|Amortization of deferred income                                                          |  | (149,106                         | ) |  | (173,303    | ) |  | (202,460    | ) |  | (6,337    | )
|Stock-based payment                                                                      |  |                                 |   |  |            |   |  | 162,157     |   |  | 5,075     |  
|Impairment loss                                                                          |  | 575,784                          |   |  | 13,179,858  |   |  | 4,007,078   |   |  | 125,417   |  
|Effect from subsidiaries over which significant control is no longer held                |  |                                 |   |  |            |   |  | 4,014       |   |  | 126       |  
|Changes in assets and liabilities:                                                       |  |                                  |   |  |             |   |  |             |   |  |           |  
|Financial assets and liabilities at fair value through profit or loss                    |  | 738,675                          |   |  | (774,040    | ) |  | 182,985     |   |  | 5,727     |  
|Notes and accounts receivable                                                            |  | (874,901                         | ) |  | 7,425,151   |   |  | (8,370,011  | ) |  | (261,972  | )
|Other receivables                                                                        |  | 513,065                          |   |  | 139,861     |   |  | 397,038     |   |  | 12,427    |  
|Inventories                                                                              |  | (1,354,730                       | ) |  | 699,986     |   |  | 1,292,621   |   |  | 40,458    |  
|Prepaid expenses                                                                         |  | 72,758                           |   |  | 187,747     |   |  | (295,626    | ) |  | (9,253    | )
|Deferred income tax assets and liabilities                                               |  | 1,646,169                        |   |  | 266,193     |   |  | 462,075     |   |  | 14,463    |  
|Other current assets                                                                     |  | (9,807                           | ) |  |            |   |  |            |   |  |          |  
|Accounts payable                                                                         |  | 378,415                          |   |  | (3,488,163  | ) |  | 3,103,407   |   |  | 97,133    |  
|Accrued expenses                                                                         |  | 675,927                          |   |  | (1,556,394  | ) |  | 1,116,047   |   |  | 34,931    |  
|Other current liabilities                                                                |  | 6,569                            |   |  | 8,224       |   |  | (359,497    | ) |  | (11,252   | )
|Accrued pension liabilities                                                              |  | 56,020                           |   |  | 49,401      |   |  | 41,432      |   |  | 1,297     |  
|Capacity deposits                                                                        |  | (873,554                         | ) |  | (4,447      | ) |  |            |   |  |          |  
|Other liabilities - others                                                               |  | (74,235                          | ) |  | (6,971      | ) |  | 10,670      |   |  | 334       |  
|                                                                                         |  |                                  |   |  |             |   |  |             |   |  |           |  
|Net cash provided by operating activities                                                |  | 48,124,267                       |   |  | 45,251,284  |   |  | 32,427,446  |   |  | 1,014,944 |  
|                                                                                         |  |                                  |   |  |             |   |  |             |   |  |           |  
|                                                                                         |  |                                  |   | 
|Cash flows from investing activities:                                                    |  |                                  |   |  |             |   |  |             |   |  |           |  
|Acquisition of financial assets at fair value through profit or loss                     |  |                                 |   |  | (50,000     | ) |  | (388,701    | ) |  | (12,166   | )
|Acquisition of available-for-sale financial assets                                       |  | (3,912,891                       | ) |  | (670,264    | ) |  | (108,222    | ) |  | (3,387    | )
|Acquisition of financial assets measured at cost                                         |  | (1,359,890                       | ) |  | (917,424    | ) |  | (984,369    | ) |  | (30,810   | )
|Acquisition of long-term investments accounted for under the equity method               |  | (1,343,316                       | ) |  | (2,450,628  | ) |  | (3,063,705  | ) |  | (95,891   | )
|Acquisition of held-to-maturity financial assets                                         |  |                                 |   |  | (352,645    | ) |  | (64,233     | ) |  | (2,010    | )
|Proceeds from disposal of financial assets at fair value through profit or loss          |  |                                 |   |  | 42,596      |   |  | 275,400     |   |  | 8,620     |  
|Proceeds from disposal of available-for-sale financial assets                            |  | 9,226,736                        |   |  | 4,285,844   |   |  | 2,790,430   |   |  | 87,337    |  
|Proceeds from disposal of financial assets measured at cost                              |  | 1,004,253                        |   |  | 425,865     |   |  | 316,295     |   |  | 9,900     |  
|Proceeds from disposal of long-term investments accounted for under the equity method    |  | 1,531,544                        |   |  | 824         |   |  |            |   |  |          |  
|Proceeds from maturity of held-to-maturity financial assets                              |  | 1,119,950                        |   |  |            |   |  | 408,364     |   |  | 12,781    |  
|Prepayment for long-term investments                                                     |  | (648,360                         | ) |  | (5,160      | ) |  | (322,290    | ) |  | (10,087   | )
|Proceeds from capital reduction and liquidation of investments                           |  | 342,206                          |   |  | 289,915     |   |  | 239,284     |   |  | 7,489     |  
|Acquisition of property, plant and equipment                                             |  | (28,299,165                      | ) |  | (11,514,548 | ) |  | (17,617,854 | ) |  | (551,420  | )
|Proceeds from disposal of property, plant and equipment                                  |  | 1,751,144                        |   |  | 261,583     |   |  | 38,458      |   |  | 1,204     |  
|Proceeds from disposal of non-current assets held for sale                               |  |                                 |   |  |            |   |  | 462,376     |   |  | 14,472    |  
|Increase in deferred charges                                                             |  | (1,255,453                       | ) |  | (770,262    | ) |  | (1,146,421  | ) |  | (35,882   | )
|Decrease (increase) in other assets-others                                               |  | (1,038                           | ) |  | 1,301       |   |  | (52,637     | ) |  | (1,647    | )
|                                                                                         |  |                                  |   |  |             |   |  |             |   |  |           |  
|Net cash used in investing activities                                                    |  | (21,844,280                      | ) |  | (11,423,003 | ) |  | (19,217,825 | ) |  | (601,497  | )
|                                                                                         |  |                                  |   |  |             |   |  |             |   |  |           |  



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##### Table of Contents

UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS

(Expressed in Thousands)



|                                                                         |  |                                  |   |  |             |   |  |            |   |  |           |  
|------------------------------------------------------------------------ |  | -------------------------------- | - |  | ----------- | - |  | ---------- | - |  | --------- | -
|                                                                         |  | For the years ended December 31, |  
|                                                                         |  | 2007                             |   |  | 2008        |   |  | 2009       |  
|                                                                         |  | NT$                              |   |  | NT$         |   |  | NT$        |   |  | US$       |  
|Cash flows from financing activities:                                    |  |                                  |   |  |             |   |  |            |   |  |           |  
|Proceeds (Repayments) from short-term loans                              |  | 14,000                           |   |  | (293,051    | ) |  | (8,240     | ) |  | (258      | )
|Proceeds from long-term loans                                            |  |                                 |   |  | 700,000     |   |  | 400,000    |   |  | 12,520    |  
|Repayments of long-term loans                                            |  |                                 |   |  |            |   |  | (300,000   | ) |  | (9,390    | )
|Increase in financial liabilities at fair value through profit or loss   |  |                                 |   |  |            |   |  | 1,340,741  |   |  | 41,964    |  
|Proceeds from bonds issued                                               |  |                                 |   |  |            |   |  | 5,330,477  |   |  | 166,838   |  
|Bond issuance costs                                                      |  |                                 |   |  |            |   |  | (51,202    | ) |  | (1,603    | )
|Redemption of bonds                                                      |  | (5,355,192                       | ) |  | (22,716,624 | ) |  |           |   |  |          |  
|Reacquisition of bonds                                                   |  | (819,323                         | ) |  |            |   |  |           |   |  |          |  
|Remuneration paid to directors and supervisors                           |  | (15,494                          | ) |  | (11,939     | ) |  |           |   |  |          |  
|Increase (decrease) in deposits-in                                       |  | 2,136                            |   |  | (4,436      | ) |  | 6,422      |   |  | 201       |  
|Cash dividends                                                           |  | (12,446,080                      | ) |  | (9,371,107  | ) |  |           |   |  |          |  
|Payment of employee bonus                                                |  | (2,324,120                       | ) |  | (286,541    | ) |  |           |   |  |          |  
|Treasury stock sold to employees                                         |  | 1,866,023                        |   |  |            |   |  | 623,166    |   |  | 19,505    |  
|Capital reduction                                                        |  | (53,844,157                      | ) |  |            |   |  |           |   |  |          |  
|Treasury stock acquired                                                  |  |                                 |   |  | (2,278,456  | ) |  | (2,393,337 | ) |  | (74,909   | )
|Exercise of employee stock options                                       |  | 226,455                          |   |  |            |   |  |           |   |  |          |  
|Increase (decrease) in minority interests                                |  | 2,202                            |   |  | (117,496    | ) |  | (4,239     | ) |  | (133      | )
|                                                                         |  |                                  |   |  |             |   |  |            |   |  |           |  
|Net cash provided by (used in) financing activities                      |  | (72,693,550                      | ) |  | (34,379,650 | ) |  | 4,943,788  |   |  | 154,735   |  
|                                                                         |  |                                  |   |  |             |   |  |            |   |  |           |  
|Effect of exchange rate changes on cash and cash equivalents             |  | 238,502                          |   |  | 1,439,871   |   |  | (550,708   | ) |  | (17,237   | )
|Effect of subsidiaries change                                            |  |                                 |   |  |            |   |  | (16,390    | ) |  | (513      | )
|                                                                         |  |                                  |   |  |             |   |  |            |   |  |           |  
|Net increase (decrease) in cash and cash equivalents                     |  | (46,175,061                      | ) |  | 888,502     |   |  | 17,586,311 |   |  | 550,432   |  
|Cash and cash equivalents at beginning of period                         |  | 93,853,208                       |   |  | 47,678,147  |   |  | 48,566,649 |   |  | 1,520,083 |  
|                                                                         |  |                                  |   |  |             |   |  |            |   |  |           |  
|Cash and cash equivalents at end of period                               |  | 47,678,147                       |   |  | 48,566,649  |   |  | 66,152,960 |   |  | 2,070,515 |  
|                                                                         |  |                                  |   |  |             |   |  |            |   |  |           |  
|                                                                         |  |                                  |   | 
|Supplemental disclosures of cash flow information:                       |  |                                  |   |  |             |   |  |            |   |  |           |  
|Cash paid for interest                                                   |  | 522,300                          |   |  | 400,238     |   |  | 124,244    |   |  | 3,889     |  
|Less: Cash paid for capitalized interest                                 |  | (37,440                          | ) |  | (70,982     | ) |  | (39,106    | ) |  | (1,224    | )
|                                                                         |  |                                  |   |  |             |   |  |            |   |  |           |  
|Cash paid for interest excluding capitalized interest                    |  | 484,860                          |   |  | 329,256     |   |  | 85,138     |   |  | 2,665     |  
|                                                                         |  |                                  |   |  |             |   |  |            |   |  |           |  
|Cash paid for income tax                                                 |  | 2,094,070                        |   |  | 1,000,974   |   |  | 709,186    |   |  | 22,197    |  
|                                                                         |  |                                  |   |  |             |   |  |            |   |  |           |  
|                                                                         |  |                                  |   | 
|Investing activities partially paid by cash:                             |  |                                  |   |  |             |   |  |            |   |  |           |  
|Acquisition of property, plant and equipment                             |  | 24,205,072                       |   |  | 7,196,408   |   |  | 21,387,628 |   |  | 669,410   |  
|Add: Payable at beginning of period                                      |  | 10,130,367                       |   |  | 6,036,274   |   |  | 1,718,134  |   |  | 53,776    |  
|Less: Payable at end of period                                           |  | (6,036,274                       | ) |  | (1,718,134  | ) |  | (5,487,908 | ) |  | (171,766  | )
|                                                                         |  |                                  |   |  |             |   |  |            |   |  |           |  
|Cash paid for acquiring property, plant and equipment                    |  | 28,299,165                       |   |  | 11,514,548  |   |  | 17,617,854 |   |  | 551,420   |  
|                                                                         |  |                                  |   |  |             |   |  |            |   |  |           |  
|                                                                         |  |                                  |   | 
|Investing and financing activities not affecting cash flows:             |  |                                  |   |  |             |   |  |            |   |  |           |  
|Principal amount of exchangeable bonds exchanged by bondholders          |  | 3,285,254                        |   |  |            |   |  |           |   |  |          |  
|Book value of available-for-sale financial assets delivered for exchange |  | (895,055                         | ) |  |            |   |  |           |   |  |          |  
|Elimination of related balance sheet accounts                            |  | 392,118                          |   |  |            |   |  |           |   |  |          |  
|                                                                         |  |                                  |   |  |             |   |  |            |   |  |           |  
|Recognition of gain on disposal of available-for-sale financial assets   |  | 2,782,317                        |   |  |            |   |  |           |   |  |          |  
|                                                                         |  |                                  |   |  |             |   |  |            |   |  |           |  



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##### Table of Contents

UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

1. HISTORY AND ORGANIZATION

United
Microelectronics Corporation (UMC) was incorporated in May 1980 and commenced operations in April 1982. UMC is a full service semiconductor wafer foundry, and provides a variety of services to satisfy customer needs. UMCs common shares were
publicly listed on the Taiwan Stock Exchange (TSE) in July 1985 and its American Depositary Shares (ADSs) were listed on the New York Stock Exchange (NYSE) in September 2000.

The numbers of employees as of December 31, 2008 and 2009 were 12,458 and 13,051, respectively.

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

The consolidated financial statements were prepared in conformity with requirements of the Guidelines Governing the Preparation of Financial Reports by
Securities Issuers and accounting principles generally accepted in the Republic of China (R.O.C.).

Summary of significant accounting policies
is as follows:

General Descriptions of Reporting Entities

Principles of Consolidation

Investees in
which UMC, directly or indirectly, holds more than 50% of voting rights or de facto control with less than 50% of voting rights, are consolidated into UMCs financial statements. (UMC and the consolidated entities are hereinafter referred to as
the Company.)

Transactions between consolidated entities are eliminated in the consolidated financial statements. Prior to
January 1, 2006, the difference between the acquisition cost and the net equity of a subsidiary as of the acquisition date was amortized over 5 years; however, effective January 1, 2006, goodwill arising from new acquisitions is analyzed
and accounted for under the ROC Statement of Financial Accounting Standard (SFAS) No. 25, Business Combination  Accounting Treatment under Purchase Method (ROC SFAS 25), and goodwill is not subject to amortization.



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##### Table of Contents

UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



The consolidated entities are as follows:

As of December 31, 2008



|                      |  |                                                    |  |                                                        |  |                           
|--------------------- |  | -------------------------------------------------- |  | ------------------------------------------------------ |  | --------------------------
|Investor              |  | Subsidiary                                         |  | Business nature                                        |  | Percentage ofownership (%)
|                      |  |                                                    | 
|UMC                   |  | UMC GROUP (USA)(UMC-USA)                           |  | IC Sales                                               |  | 100.00                    
|                      |  |                                                    | 
|UMC                   |  | UNITED MICROELECTRONICS (EUROPE) B.V. (UME BV)     |  | IC Sales                                               |  | 100.00                    
|                      |  |                                                    | 
|UMC                   |  | UMC CAPITAL CORP.                                  |  | Investment holding                                     |  | 100.00                    
|                      |  |                                                    | 
|UMC                   |  | UNITED MICROELECTRONICS CORP. (SAMOA)              |  | Investment holding                                     |  | 100.00                    
|                      |  |                                                    | 
|UMC                   |  | TLC CAPITAL CO., LTD. (TLC)                        |  | New business investment                                |  | 100.00                    
|                      |  |                                                    | 
|UMC                   |  | UMCI LTD. (UMCI)                                   |  | Sales and manufacturing of integrated circuits         |  | 100.00                    
|                      |  |                                                    | 
|UMC                   |  | FORTUNE VENTURE CAPITAL CORP. (FORTUNE)            |  | Consulting and planning for investment in new business |  | 99.99                     
|                      |  |                                                    | 
|UMC                   |  | UNITED MICRODISPLAY OPTRONICS CORP. (UMO) (Note A) |  | Sales and manufacturing of LCOS                        |  | 89.99                     
|                      |  |                                                    | 
|UMC                   |  | UMC JAPAN (UMCJ)                                   |  | Sales and manufacturing of integrated circuits         |  | 52.64                     
|                      |  |                                                    | 
|FORTUNE               |  | UNITRUTH INVESTMENT CORP. (UNITRUTH)               |  | Investment holding                                     |  | 100.00                    
|                      |  |                                                    | 
|UMC CAPITAL CORP.     |  | UMC CAPITAL (USA)                                  |  | Investment holding                                     |  | 100.00                    
|                      |  |                                                    | 
|UMC CAPITAL CORP.     |  | ECP VITA LTD.                                      |  | Insurance                                              |  | 100.00                    
|                      |  |                                                    | 
|TLC                   |  | SOARING CAPITAL CORP.                              |  | Investment holding                                     |  | 100.00                    
|                      |  |                                                    | 
|SOARING CAPITAL CORP. |  | UNITRUTH ADVISOR (SHANGHAI) CO., LTD.              |  | Investment holding and advisory                        |  | 100.00                    



|Note A: | On June 26, 2009, UMO has filed for liquidation through a decision at its stockholders meeting. The Company ceased using the equity method from that day, and
UMO is not included as a consolidated subsidiary as of December 31, 2009.
|------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



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##### Table of Contents

UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



As of December 31, 2009



|                      |  |                                                       |  |                                                        |  |                           
|--------------------- |  | ----------------------------------------------------- |  | ------------------------------------------------------ |  | --------------------------
|Investor              |  | Subsidiary                                            |  | Business nature                                        |  | Percentage ofownership (%)
|                      |  |                                                       | 
|UMC                   |  | UMC-USA                                               |  | IC Sales                                               |  | 100.00                    
|                      |  |                                                       | 
|UMC                   |  | UME BV                                                |  | Market development                                     |  | 100.00                    
|                      |  |                                                       | 
|UMC                   |  | UMC CAPITAL CORP.                                     |  | Investment holding                                     |  | 100.00                    
|                      |  |                                                       | 
|UMC                   |  | UNITED MICROELECTRONICS CORP. (SAMOA)                 |  | Investment holding                                     |  | 100.00                    
|                      |  |                                                       | 
|UMC                   |  | TLC                                                   |  | New business investment                                |  | 100.00                    
|                      |  |                                                       | 
|UMC                   |  | UMCI                                                  |  | Sales and manufacturing of integrated circuits         |  | 100.00                    
|                      |  |                                                       | 
|UMC                   |  | UMC NEW BUSINESS INVESTMENT CORP. (NBI)               |  | Investment holding                                     |  | 100.00                    
|                      |  |                                                       | 
|UMC                   |  | ALPHA WISDOM LIMITED (ALPHA)                          |  | Investment holding                                     |  | 100.00                    
|                      |  |                                                       | 
|UMC                   |  | GREEN EARTH LIMITED                                   |  | Investment holding                                     |  | 100.00                    
|                      |  |                                                       | 
|UMC                   |  | FORTUNE                                               |  | Consulting and planning for investment in new business |  | 99.99                     
|                      |  |                                                       | 
|UMC                   |  | UMCJ                                                  |  | Sales and manufacturing of integrated circuits         |  | 52.26                     
|                      |  |                                                       | 
|FORTUNE               |  | UNITRUTH                                              |  | Investment holding                                     |  | 100.00                    
|                      |  |                                                       | 
|UMC CAPITAL CORP.     |  | UMC CAPITAL (USA)                                     |  | Investment holding                                     |  | 100.00                    
|                      |  |                                                       | 
|UMC CAPITAL CORP.     |  | ECP VITA LTD.                                         |  | Insurance                                              |  | 100.00                    
|                      |  |                                                       | 
|TLC                   |  | SOARING CAPITAL CORP.                                 |  | Investment holding                                     |  | 100.00                    
|                      |  |                                                       | 
|SOARING CAPITAL CORP. |  | UNITRUTH ADVISOR (SHANGHAI) CO., LTD.                 |  | Investment holding and advisory                        |  | 100.00                    
|                      |  |                                                       | 
|NBI                   |  | UNITED LIGHTING OPTO-ELECTRONIC INC.                  |  | LED lighting manufacturing and sale                    |  | 95.54                     
|                      |  |                                                       | 
|NBI                   |  | EVERRICH ENERGY CORP. (EVERRICH)                      |  | Solar engineering integrated design services           |  | 93.75                     
|                      |  |                                                       | 
|EVERRICH              |  | EVERRICH ENERGY INVESTMENT (HK) LIMITED (EVERRICH-HK) |  | Investment holding                                     |  | 100.00                    
|                      |  |                                                       | 
|EVERRICH-HK           |  | YONGSHENG (SHANDONG) ENERGY CO.                       |  | Solar engineering integrated design services           |  | 100.00                    
|                      |  |                                                       | 
|ALPHA                 |  | UMCJ                                                  |  | Sales and manufacturing of integrated circuits         |  | 42.53                     



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##### Table of Contents

UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



Use of Estimates

The preparation of the Companys consolidated financial statements in conformity with generally accepted accounting principles requires management to
make reasonable estimates and assumptions that will affect the amount of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amount of revenues and
expenses during the reported periods. The actual results may differ from those estimates.

Foreign Currency Transactions

Transactions denominated in foreign currencies are remeasured into the local functional currencies and recorded based on the exchange rates prevailing at
the transaction dates. Monetary assets and liabilities denominated in foreign currencies are remeasured into the local functional currencies at the exchange rates prevailing at the balance sheet date, with the related exchange gains or losses
included in the consolidated statements of income. Translation gains or losses from investments in foreign entities are recognized as a cumulative translation adjustment in consolidated stockholders equity.

Non-monetary assets and liabilities denominated in foreign currencies that are reported at fair value with changes in fair value charged to the
consolidated statements of income, are remeasured at the exchange rate at the balance sheet date, with related exchange gains or losses recorded in the consolidated statements of income. Non-monetary assets and liabilities denominated in foreign
currencies that are reported at fair value with changes in fair value charged to consolidated stockholders equity, are remeasured at the exchange rate at the balance sheet date, with related exchange gains or losses recorded as adjustment
items to a cumulative translation adjustment in consolidated stockholders equity. Non-monetary assets and liabilities denominated in foreign currencies and reported at cost are remeasured at historical exchange rates.

Translation of Foreign Currency Financial Statements

The financial statements of foreign subsidiaries and UMCs Singapore branch (the Branch) are translated into New Taiwan Dollars using the spot rates
at the balance sheet date for asset and liability accounts and average exchange rate for profit and loss accounts. The cumulative translation effects from the subsidiaries and the Branch using functional currencies other than New Taiwan Dollars are
included in the cumulative translation adjustment in consolidated stockholders equity.



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##### Table of Contents

UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



Convenience Translation into US Dollars

Translations of amount from New Taiwan dollars (NT$) into United States dollars for the readers convenience were calculated at the noon buying rate
of US$1.00 to NT$31.95 on December 31, 2009 in The City of New York for cable transfers of NT$ as certified for customs purposes by the Federal Reserve Bank of New York. No representation is made that the NT$ amounts could have been, or could
be, converted into United States dollars at such rate.

Cash Equivalents

Cash equivalents are short-term, highly liquid investments that are readily convertible to known amounts of cash and with maturity dates that do not
present significant risks on changes in value resulting from changes in interest rates, including commercial paper with original maturities of three months or less.

Financial Assets and Financial Liabilities

In accordance with ROC SFAS No. 34, Financial Instruments: Recognition and Measurement (ROC SFAS 34) and the Guidelines Governing
the Preparation of Financial Reports by Securities Issuers, financial assets are classified as either financial assets at fair value through profit or loss, held-to-maturity financial assets, financial assets measured at cost, or
available-for-sale financial assets. Financial liabilities are recorded at fair value through profit or loss.

The Company accounts for
purchase or sale of financial instruments as of the trade date, which is the date the Company commits to purchase or sell the asset or liability. Financial assets and financial liabilities are initially recognized at fair value plus acquisition or
issuance costs.

a. Financial assets and financial liabilities at fair value through profit or loss

Financial instruments held for short-term sale or repurchase purposes and derivative financial instruments not qualified for hedge accounting are
classified as financial assets or liabilities at fair value through profit or loss.



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##### Table of Contents

UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



This category of financial instruments is measured at fair value and changes in fair value are
recognized in the consolidated statements of income. Stock of listed companies, corporate bonds, convertible bonds, and closed-end funds are measured at closing prices as of the balance sheet date. Open-end funds are measured at the unit price of
the net assets as of the balance sheet date. The fair value of derivative financial instruments is determined by using valuation techniques commonly used by market participants in the industry.

b. Held-to-maturity financial assets

Non-derivative financial assets with fixed or determinable payments and fixed maturity are classified as held-to-maturity financial assets if the Company
has both the positive intention and ability to hold the financial assets to maturity. Investments intended to be held to maturity are measured at amortized cost.

The Company recognizes an impairment loss if objective evidence of impairment loss exists. However, the impairment loss may be reversed if the value of
asset recovers subsequently and the Company concludes the recovery is related to improvements in events or factors that originally caused the impairment loss. The new cost basis as a result of the reversal cannot exceed the amortized cost prior to
the impairment.

c. Financial assets measured at cost

Unlisted stock, funds, and other securities without reliable market prices are measured at cost. When objective evidence of impairment exists, the Company
recognizes an impairment loss, which cannot be reversed in subsequent periods.

d. Available-for-sale financial assets

Available-for-sale financial assets are non-derivative financial instruments not classified as financial assets at fair value through profit or loss,
held-to-maturity financial assets, loans and receivables. Subsequent measurement is calculated at fair value. Investments in listed companies are measured at closing prices as of the balance sheet date. Any gain or loss arising from the change in
fair value, excluding impairment loss and exchange gain or loss arising from monetary financial assets denominated in foreign currencies, is recognized as an adjustment to consolidated stockholder equity until such investment is reclassified
or disposed of, upon which the cumulative gain or loss previously charged to consolidated stockholders equity will be recorded in the consolidated statements of income.



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UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



The Company recognizes an impairment loss when objective evidence of impairment exists. Any reduction in
the impairment loss of equity investments in subsequent periods will be recognized as an adjustment to consolidated stockholders equity. The impairment loss of a debt security may be reversed and recognized in the consolidated statement of
income if the security recovers and the Company concludes the recovery is related to improvements in the factors or events that originally caused the impairment.

Allowance for Doubtful Accounts

An
allowance for doubtful accounts is provided based on managements judgment of the collectability and aging analysis of accounts and other receivables.

Inventories

Inventories are accounted
for on a perpetual basis. Raw materials are recorded at actual purchase costs, while the work in process and finished goods are recorded at standard costs and subsequently adjusted to costs using the weighted-average method at the end of each month.
Allocation of fixed production overheads to the costs of conversion is based on the normal capacity of the production facilities. Prior to January 1, 2009, inventories are stated individually by category at the lower of aggregate cost or market
value as of the balance sheet date. The market values of raw materials and supplies are determined on the basis of replacement cost while the market values of work in process and finished goods are determined by net realizable values. Effective
January 1, 2009, inventories are valued at the lower of cost and net realizable value item by item. Net realizable value is the estimated selling price in the ordinary course of business less the estimated costs of completion and the estimated
costs necessary to make the sale.

Non-current Assets Held for Sale

Non-current assets that are available for immediate sale in their present condition subject only to terms that are usual and customary for sales of such
assets and that are highly probable to be sold within one year are classified as non-current assets held for sale. A held for sale non-current asset is measured at the lower of its carrying amount or fair value less costs to sell and is recorded
separately on the balance sheet. No further amortization or depreciation will be recorded once an asset is classified as held for sale.

Impairment losses of non-current assets held for sale are recognized for the excess of the carrying amounts over fair values less costs to sell and
reported as losses in the current period. A gain is recognized for any subsequent increase in fair value less costs to sell of an asset, but not in excess of the total amount of the accumulated impairment loss and the amount allowed to be reversed
in accordance with the ROC SFAS No. 35, Impairment of Assets (ROC SFAS 35).

Long-term Investments Accounted for Under the
Equity Method

Long-term investments are recorded at acquisition cost. Investments acquired by contribution of technological know-how are
credited to deferred credits among affiliates, which will be amortized over a period of 5 years.



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UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



Investments in which the Company has ownership of at least 20% or exercises significant influence on
operating decisions are accounted for under the equity method. Prior to January 1, 2006, the difference of the acquisition cost and the underlying equity in the investees net assets as of acquisition date was amortized over 5 years;
however, effective from January 1, 2006, goodwill arising from new acquisitions is analyzed and accounted for under the ROC SFAS 25, in which goodwill is not subject to amortization.

When an equity investee offsets its accumulated deficit with its additional paid-in capital, the Company would debit additional paid-in capital and
credit retained earnings in proportionate to its existing equity ownership to the extent that credit is available on the additional paid-in capital.

The change in the Companys proportionate share in the net assets of an investee resulting from its acquisition of additional stock issued by the
investee at a rate not proportionate to its existing equity ownership is charged to the additional paid-in capital and long-term investments accounts.

When the balance of the additional paid-in capital arising from long-term investments is less than the amount needs to be charged to the additional
paid-in capital, the excess would be charged to the retained earnings.

Unrealized intercompany gains and losses arising from sales from the
Company to equity method investees are eliminated in proportion to the Companys ownership percentage at the end of the period until realized through transactions with third parties. Intercompany gains and losses arising from transactions
between the Company and majority-owned (above 50%) subsidiaries are eliminated entirely until realized through transactions with third parties.

Unrealized intercompany gains and losses due to sales from equity method investees to the Company are eliminated in proportion to the Companys
weighted-average ownership percentage of the investee until realized through transactions with third parties.

Unrealized intercompany gains
and losses arising from transactions between two equity method investees are eliminated in proportion to the Companys multiplied weighted-average ownership percentage with the investees until realized through transactions with third parties.
Those intercompany gains and losses arising from transactions between two majority-owned subsidiaries are eliminated in proportion to the Companys weighted-average ownership percentage in the subsidiary that incurred the gain or loss.

If the recoverable amount of investees accounted for under the equity method is less than its carrying amount, the difference is recognized
as impairment loss in the current period.



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UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



The total value of an investment after recognition of the investment losses cannot be negative. If the
Company has the positive intention to continue to support the investees, or the losses of investees are only temporary, the Company will continue to recognize investment losses with its proportionate share. If, after the investment loss is
recognized, the net book value of the investment is less than zero, the investment is reclassified to liabilities on the consolidated balance sheet.

The Company ceases to use the equity method upon a loss of ability to exercise significant influence over an investee. In accordance with ROC SFAS 34,
the carrying value of the investment upon the loss of significant influence remains as the carrying value of the investment. Any amount of the investees additional paid-in capital and other adjustment items recorded in the consolidated
stockholders equity of the Company are eliminated in proportion to the amount of the investment sold and recorded as a gain or loss on disposal of investments. Cash dividends received during the year of change are applied as a reduction of the
carrying amount of the investment. Dividends received in subsequent years are recorded in accordance with ROC SFAS No. 32, Accounting for Revenue Recognition.

Gain or loss on disposal of long-term investments is based on the difference between selling price and book value of investments sold. Any amount of the
investees additional paid-in capital and other adjustment items recorded in the consolidated stockholders equity of the Company are eliminated in proportion to the amount of the investment sold and recorded as gain or loss on disposal of
investments.

Property, Plant and Equipment

Property, plant and equipment are stated at cost. Interest incurred on loans used to finance the construction of property, plant and equipment is
capitalized and depreciated accordingly. Maintenance and repairs are charged to expense as incurred. Significant renewals and improvements are treated as capital expenditures and are depreciated over their estimated useful lives. Upon disposal of
property, plant and equipment, the original cost and accumulated depreciation are written off and the related gain or loss is classified as non-operating income or expense. Idle assets are classified as other assets at the lower of net book or net
realizable value, with the difference charged to non-operating expenses.

Depreciation is recognized on a straight-line basis using the
estimated economic life of the assets:



|                                         |  |                                                                  
|---------------------------------------- |  | -----------------------------------------------------------------
|Buildings                                |  | 3~55 years                                                       
|Machinery and equipment                  |  | 5 years                                                          
|Transportation equipment                 |  | 4~5years                                                         
|Furniture and fixtures                   |  | 2~20 years                                                       
|Leased assets and leasehold improvements |  | The lease period or estimated economic life, whichever is shorter



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UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



Intangible Assets

Effective January 1, 2006, goodwill generated from business combinations is no longer subject to amortization.

An impairment loss will be recognized when the decrease in fair value of intangible assets are other than temporary. The book value after recognizing the
impairment loss is recorded as the new cost.

Deferred Charges

Deferred charges are stated at cost and amortized on a straight-line basis as follows: intellectual property license fees  the shorter of contract
term or estimated economic life of the related technology; and software  3 to 5 years.

Convertible and Exchangeable Bonds

The excess of the stated redemption price over par value is accrued as interest payable and expensed over the redemption period using the
effective interest method.

When convertible bondholders exercise their conversion rights, the book value of the bonds is credited to common
stock at an amount equal to the par value of the common stock with the excess credited to additional paid-in capital. No gain or loss is recognized upon bond conversion.

When exchangeable bondholders exercise their right to exchange their bonds for reference shares, the book value of the bonds is offset against the book
value of the investments in reference shares and the related stockholders equity accounts, with the difference recognized as a gain or loss on disposal of investments.

In accordance with ROC SFAS 34 effective as of January 1, 2006, since the economic and risk characteristics of the embedded derivative instrument
and the host contract are not clearly and closely related, derivative financial instruments embedded in exchangeable bonds are bifurcated and accounted as financial liabilities at fair value through profit or loss.

Originally, the issuance costs of convertible and exchangeable bonds were classified as deferred charges and amortized over the life of the bonds.
Effective January 1, 2006, the unamortized amounts as of December 31, 2005 were reclassified as a bond discount and recorded as a deduction to bonds payable. The amounts are amortized using the effective interest method over the remaining
life of the bonds. If the difference between the straight-line method and the effective interest method is immaterial, the amortization of the bond discount may be amortized using the straight-line method and recorded as interest expenses.



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UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



Pension Plan

All regular employees are entitled to a defined benefit pension plan that is managed by an independently administered pension fund committee. Fund assets
are deposited under the committees name in the Bank of Taiwan and hence, not associated with the Company. Therefore, fund assets are not to be included in the Companys financial statements. Pension benefits for employees of the Branch
and overseas subsidiaries are provided in accordance with the local regulations.

The Labor Pension Act of the R.O.C. (the Act), which adopts
a defined contribution plan, became effective on July 1, 2005. Employees eligible for the Labor Standards Law, a defined benefit plan, were allowed to elect either the pension calculation under the Act or continue to be subject to the pension
calculation under the Labor Standards Law. Those employees that elected to be subject to the Act will have their seniority achieved under the Labor Standards Law retained upon election of the Act, and the Company will make monthly contributions of
no less than 6% of these employees monthly wages to the employees individual pension accounts.

The accounting for UMCs
pension liability is computed in accordance with ROC SFAS No. 18, Accounting for Pension. Net pension costs of the defined benefit plan are recorded based on an independent actuarial valuation. Pension cost components such as service
cost, interest cost, expected return on plan assets, the amortization of net obligation at transition, pension gain or loss, and prior service cost, are all taken into consideration. UMC recognizes expenses from the defined contribution pension plan
in the period in which the contribution becomes due.

Share-Based Payment

The Company used the intrinsic value method to recognize compensation cost for its employee stock options issued between January 1, 2004 and
December 31, 2007, in accordance with Accounting Research and Development Foundation (ARDF) Interpretation Nos. 92-070~072. For options granted on or after January 1, 2008, the Company recognizes compensation cost using the fair value
method in accordance with ROC SFAS No. 39 Accounting for Share-Based Payment. (ROC SFAS 39)

Employee Bonus and
Remunerations Paid to Directors and Supervisors

In accordance with ARDF Interpretation No. 96-052 Accounting for Employee Bonus
and Remunerations to Directors and Supervisors (ARDF Interpretation 96-052) effective January 1, 2008, employee bonus and remunerations paid to directors and supervisors are charged to expense at fair value and are no longer accounted for
as an appropriation of retained earnings.



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UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



Treasury Stock

In accordance with ROC SFAS No. 30, Accounting for Treasury Stock, treasury stock held by the Company is accounted for under the cost
method. The cost of treasury stock is shown as a deduction to consolidated stockholders equity, while any gain or loss from selling treasury stock is treated as an adjustment to additional paid-in capital. The Companys stock held by its
subsidiaries is also treated as treasury stock. Cash dividends received by subsidiaries from the Company are recorded as additional paid-in capital-treasury stock transactions.

For treasury stock sold to employees, the Company recognizes compensation cost in accordance with ROC SFAS 39 and ARDF Interpretation No. 96-266,
Accounting for Treasury Stock Purchased by Employees (ARDF Interpretation 96-266) and ARDF Interpretation No. 98-111, Determining the Grant Date of Share-Based Payment.

Revenue Recognition

The Company
recognizes revenue when persuasive evidence of an arrangement exists, the product or service has been delivered, the sellers price to the buyer is fixed or determinable and collectability is reasonably assured. Most of the Companys sales
transactions have shipping terms of Free on Board (FOB) or Free Carrier (FCA) shipment in which title and the risk of loss or damage are transferred to the customer upon delivery of the product to a carrier approved by the customer.

Allowance for sales returns and discounts are estimated based on history of customer complaints, historical experiences, management judgment and any
other known factors that might significantly affect collectability. Such allowances are recorded in the same period in which sales are made. Shipping and handling costs are included in sales expenses.

Research and Development Expenditures

Research and development expenditures are charged to expenses as incurred.

Capital Expenditure versus Operating Expenditure

Expenditures are capitalized when it is probable that the Company will receive future economic benefits associated with the expenditures.

Income Tax

The Company adopted ROC SFAS
No. 22, Accounting for Income Taxes (ROC SFAS 22) for inter-period and intra-period income tax allocation. The provision for income taxes includes deferred income tax assets and liabilities that are a result of temporary differences
between carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes, loss carry-forward and investment tax credits. A valuation allowance on deferred income tax assets is provided to the
extent that it is more likely than not that the tax benefits will not be realized. A deferred tax asset or liability is classified as current or noncurrent in accordance with the classification of its related asset or liability. However, if a
deferred tax asset or liability does not relate to an asset or liability in the financial statements, its classification is based on the expected reversal date of the temporary difference.



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UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



According to ROC SFAS No. 12, Accounting for Income Tax Credits, the Company recognizes
the tax benefit from the purchase of equipment and technology, research and development expenditures, employee training, and certain equity investment by the flow-through method.

Income tax (10%) on unappropriated earnings is recorded as expense in the year when the stockholders have resolved that the earnings shall be
retained.

The Income Basic Tax Act of the R.O.C. (the IBTA) became effective on January 1, 2006. Set up by the Executive Yuan, the IBTA
is a supplemental 10% tax that is payable if the income tax payable determined by the ROC Income Tax Act is below the minimum amount as prescribed by the IBTA. The IBTA is calculated based on taxable income as defined by the IBTA, which includes
most income that is exempted from income tax under various legislations. The impact of the IBTA has been considered in the Companys income tax for the current reporting period.

Earnings (Losses) per Share

Earnings
(Losses) per share is computed according to ROC SFAS No. 24, Earnings Per Share. Basic earnings (losses) per share is computed by dividing net income (loss) by the weighted-average number of common shares outstanding during the
current reporting period. Diluted earnings (losses) per share is computed by taking basic earnings (losses) per share into consideration plus additional common shares that would have been outstanding if the dilutive share equivalents had been
issued. Net income (loss) is also adjusted for interest and other income or expenses derived from any underlying dilutive share equivalents. The weighted-average of outstanding shares is adjusted retroactively for stock dividends and bonus share
issues that are approved in the stockholders meetings prior to 2008.

Asset Impairment

Pursuant to ROC SFAS No. 35, Impairment of Assets, the Company assesses indicators of impairment for all its assets (except for goodwill)
within the scope of the standard at each balance sheet date. If impairment is indicated, the Company compares the assets carrying amount with the recoverable amount of the assets or the cash-generating unit (CGU) associated with the asset and
writes down the carrying amount to the recoverable amount where applicable. The recoverable amount is defined as the higher of fair value less the costs to sell, and the values in use. For previously recognized losses, the Company assesses at the
balance sheet date if any indication that the impairment loss no longer exists or may have diminished. If there is any such indication, the Company recalculates the recoverable amount of the asset, and if the recoverable amount has increased as a
result of the increase in the estimated service potential of the assets, the Company reverses the impairment loss so that the resulting carrying amount of the asset does not exceed the amount (net of amortization or depreciation) that would
otherwise result had no impairment loss been recognized for the assets in prior years.



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UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



In addition, a goodwill-allocated CGU or group of CGUs is tested for impairment each year, regardless of
whether impairment is indicated. If an impairment test reveals that the carrying amount, including goodwill, of CGU or group of CGUs is greater than its recoverable amount, it results in an impairment loss. The loss is first recorded against the
CGUs goodwill, with any remaining loss allocated to other assets on a pro rata basis proportionate to their carrying amounts. The write-down of goodwill cannot be reversed in subsequent periods under any circumstances.

Impairment losses and reversals are classified as non-operating expenses and income, respectively.

New Accounting Pronouncements

In April
2009, the Accounting Research and Development Foundation in Taiwan issued ROC SFAS No. 41, Disclosures for Operating Segment Information (ROC SFAS 41), which establishes disclosure requirements to assist financial statement users to
evaluate the different types of business activities in which an enterprise engages and the different economic environments in which it operates. The determination of operating segments is significantly based on how an enterprises chief
operating decision maker views and manages the business. This standard requires an enterprise to report separately information about each operating segment that meets certain criteria. The standard is effective for fiscal years beginning after
January 1, 2011. The impact that the adoption of ROC SFAS 41 will have on our financial reporting disclosure will depend on the applicable future business model.



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UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



3. ACCOUNTING CHANGES

Inventories

Effective
January 1, 2009, the Company adopted the newly revised SFAS No. 10, Accounting for Inventories (ROC SFAS 10). The main revisions are a. inventories are valued at the lower of cost and net realizable value item by item; b.
unallocated overheads resulted from low production or idle capacity are recognized as costs of goods sold in the period in which they are incurred; and c. abnormal amounts of production costs, and loss on decline in the market value of inventories
(or gains on recovery in market value of inventories) are recognized as cost of goods sold. As a result of adopting the revised ROC SFAS 10, the consolidated net income and consolidated earnings per share for the year ended December 31, 2009,
are NT$365 million and NT$0.03 lower, respectively. The non-operating income of NT$301 million and the non-operating expense of NT$3,273 million for the year ended December 31, 2008 were also reclassified to cost of goods sold.

Employee Stock Options

Effective
January 1, 2008, the Company adopted ROC SFAS 39 to account for share-based payments. This change in accounting principles had no effect on consolidated net loss or consolidated losses per share for the year ended December 31, 2008.

Employee Bonus and Remunerations Paid to Directors and Supervisors

Effective January 1, 2008, the Company adopted ARDF Interpretation 96-052 to account for employee bonus and remunerations paid to directors and
supervisors. This change in accounting principles had no effect on consolidated net loss or consolidated losses per share for the year ended December 31, 2008.

4. CASH AND CASH EQUIVALENTS



|                              |  |                    |  |           
|----------------------------- |  | ------------------ |  | ----------
|                              |  | As of December 31,
|                              |  | 2008               |  | 2009      
|                              |  | NT$000            |  | NT$000   
|Cash                          |  |                    |  |           
|Cash on hand                  |  | 2,478              |  | 3,463     
|Checking and savings accounts |  | 5,098,037          |  | 10,907,465
|Time deposits                 |  | 37,311,317         |  | 46,464,891
|                              |  |                    |  |           
|Subtotal                      |  | 42,411,832         |  | 57,375,819
|                              |  |                    |  |           
|                              |  |                   
|Cash equivalents              |  | 6,154,817          |  | 8,777,141 
|                              |  |                    |  |           
|Total                         |  | 48,566,649         |  | 66,152,960
|                              |  |                    |  |           



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UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



5. FINANCIAL ASSETS AT FAIR VALUE THROUGH PROFIT OR LOSS



|                              |  |                    |  |          
|----------------------------- |  | ------------------ |  | ---------
|                              |  | As of December 31,
|                              |  | 2008               |  | 2009     
|                              |  | NT$000            |  | NT$000  
|Current                       |  |                    |  |          
|Listed stocks                 |  | 1,448,506          |  | 1,547,335
|Corporate bonds               |  | 232,799            |  | 384,980  
|Forward contracts             |  | 59,750             |  | 75,366   
|Interest rate swap agreements |  |                   |  | 88,410   
|                              |  |                    |  |          
|Subtotal                      |  | 1,741,055          |  | 2,096,091
|                              |  |                    |  |          
|Noncurrent                    |  |                    |  |          
|Convertible bonds             |  | 60,010             |  |         
|Interest rate swap agreements |  | 113,550            |  |         
|                              |  |                    |  |          
|Subtotal                      |  | 173,560            |  |         
|                              |  |                    |  |          
|Total                         |  | 1,914,615          |  | 2,096,091
|                              |  |                    |  |          

During the years ended December 31, 2008 and 2009, net gains
(losses) arising from the changes in fair value of financial assets at fair value through profit or loss were a loss of NT$2,366 million and a gain of NT$513 million, respectively.

6. HELD-TO-MATURITY FINANCIAL ASSETS, CURRENT



|                    |  |                    |  |        
|------------------- |  | ------------------ |  | -------
|                    |  | As of December 31,
|                    |  | 2008               |  | 2009   
|                    |  | NT$000            |  | NT$000
|Floating rate notes |  | 324,297            |  |       
|Corporate bonds     |  | 28,348             |  |       
|                    |  |                    |  |        
|Total               |  | 352,645            |  |       
|                    |  |                    |  |        



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UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



7. ACCOUNTS RECEIVABLE, NET



|                                                |  |                    |   |  |            |  
|----------------------------------------------- |  | ------------------ | - |  | ---------- | -
|                                                |  | As of December 31, |  
|                                                |  | 2008               |   |  | 2009       |  
|                                                |  | NT$000            |   |  | NT$000    |  
|Accounts receivable                             |  | 9,005,705          |   |  | 17,010,650 |  
|Less: Allowance for sales returns and discounts |  | (607,944           | ) |  | (580,618   | )
|Less: Allowance for doubtful accounts           |  | (9,529             | ) |  | (12,231    | )
|                                                |  |                    |   |  |            |  
|Net                                             |  | 8,388,232          |   |  | 16,417,801 |  
|                                                |  |                    |   |  |            |  

8. INVENTORIES, NET



|                                                                     |  |                    |   |  |            |  
|-------------------------------------------------------------------- |  | ------------------ | - |  | ---------- | -
|                                                                     |  | As of December 31, |  
|                                                                     |  | 2008               |   |  | 2009       |  
|                                                                     |  | NT$000            |   |  | NT$000    |  
|Raw materials                                                        |  | 916,269            |   |  | 732,130    |  
|Supplies and spare parts                                             |  | 2,357,131          |   |  | 2,041,004  |  
|Work in process                                                      |  | 5,954,712          |   |  | 6,755,426  |  
|Finished goods                                                       |  | 2,883,045          |   |  | 1,038,400  |  
|                                                                     |  |                    |   |  |            |  
|Total                                                                |  | 12,111,157         |   |  | 10,566,960 |  
|Less: Allowance for loss on decline in market value and obsolescence |  | (3,993,554         | ) |  | (1,425,575 | )
|                                                                     |  |                    |   |  |            |  
|Net                                                                  |  | 8,117,603          |   |  | 9,141,385  |  
|                                                                     |  |                    |   |  |            |  



| | a. | The circumstances that caused the net realizable value of inventory to be lower than its cost no longer exist. As a result, the Company recognized a gain of NT$2,597
million on recovery of market value of inventories during the year ended December 31, 2009.
| | -- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | b. | Inventories were not pledged.
| | -- | -----------------------------



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UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



9. AVAILABLE-FOR-SALE FINANCIAL ASSETS



|                    |  |                    |  |           
|------------------- |  | ------------------ |  | ----------
|                    |  | As of December 31,
|                    |  | 2008               |  | 2009      
|                    |  | NT$000            |  | NT$000   
|Current             |  |                    |  |           
|Common stocks       |  |                   |  | 6,250,694 
|                    |  |                    |  |           
|                    |  |                   
|Noncurrent          |  |                    |  |           
|Common stocks       |  | 16,067,389         |  | 34,797,889
|Depositary receipts |  | 177,264            |  | 256,959   
|Funds               |  | 39,264             |  | 52,094    
|                    |  |                    |  |           
|Subtotal            |  | 16,283,917         |  | 35,106,942
|                    |  |                    |  |           
|Total               |  | 16,283,917         |  | 41,357,636
|                    |  |                    |  |           

During the years ended December 31, 2008 and 2009, the net
unrealized gains (losses) adjustments to consolidated stockholders equity due to changes in fair value of available-for-sale assets were a loss of NT$31,619 million and a gain of NT$27,726 million, respectively. Additionally, the Company
recognized a loss of NT$5,532 million and a gain of NT$1,858 million due to the disposal of available-for-sale assets during the years ended December 31, 2008 and 2009, respectively.

As of March 1, 2007, HIGHLINK (an equity method investee) and EPITECH TECHNOLOGY CORP. (EPITECH) (classified as an available-for-sale financial
asset, noncurrent) merged into EPISTAR CORP. and were continued as EPISTAR CORP. (classified as an available-for-sale financial asset, noncurrent after the merger). During the transaction, 5.5 shares of HIGHLINK and 3.08 shares of EPITECH were
exchanged for 1 share of EPISTAR CORP. 5 million shares of EPISTAR CORP. were exchanged from HIGHLINK that originally were acquired through private placement of HIGHLINK in February 2006 and its subsequent stock dividends since February 2006.
Additionally, the Company acquired 6.7 million shares of Simplo Technology Co., LTD. through private placement in July 2006 and its subsequent stock dividends. The exchanges of these shares listed above were restricted by Article 43 paragraph 8
of the Securities and Exchange Law. The above-mentioned restriction of EPISTAR and Simplo was removed on May 10 and August 23, 2009, respectively.



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UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



As of December 31, 2008, SMEDIA TECHNOLOGY CORP. (SMEDIA) (an equity method investee), CHIP
ADVANCED TECHNOLOGY INC. (CHIP ADVANCED) (accounted for as financial assets measured at cost, noncurrent), USBEST TECHNOLOGY INC. (USBEST) (accounted for as financial assets measured at cost, noncurrent) and ITE TECH. INC. (ITE) merged into ITE and
were continued as ITE. (classified as an available-for-sale financial asset, noncurrent) after the merger. During the transaction, 1 share of SMEDIA was exchanged for 0.26 share of ITE, 1 share of CHIP ADVANCED was exchanged for 0.41 share of ITE,
and 1 share of USBEST was exchanged for 1.05 shares of ITE.

UMC issued bonds that are exchangeable at any time on or after January 1,
2010 and prior to November 22, 2014, into common stocks originally classified as available-for-sale financial assets, noncurrent. Therefore, UMC reclassified the exchangeable shares to current assets.

10. FINANCIAL ASSETS MEASURED AT COST, NONCURRENT



|                  |  |                    |  |          
|----------------- |  | ------------------ |  | ---------
|                  |  | As of December 31,
|                  |  | 2008               |  | 2009     
|                  |  | NT$000            |  | NT$000  
|Common stocks     |  | 4,567,436          |  | 4,634,168
|Preferred stocks  |  | 2,413,108          |  | 2,273,083
|Funds             |  | 648,245            |  | 644,047  
|Convertible bonds |  | 27,899             |  | 77,225   
|                  |  |                    |  |          
|Total             |  | 7,656,688          |  | 7,628,523
|                  |  |                    |  |          

These investments consist of restricted shares and private equity
instruments, funds, and other securities without reliable market prices. The Company acquired 79,000 shares of Ralink Technology Corp. (Ralink) through private placement in July 2007 and its subsequent stock dividends, 4.4 million shares of
INPAQ Technology Co., LTD. (INPAQ) through private placement in November 2007 and its subsequent stock dividends, and 4.6 million shares of First International Telecom Corp. (First International Telecom) through private placement in March 2008,
4 million shares of E-One Moli Energy Corp. (E-One) through private placement in June 2009, 2 million shares of A-DATA Technology CO., LTD. (A-DATA) through private placement in September 2009 and 500 units of convertible bonds issued by
TOPOINT Technology CO., LTD. (TOPOINT) through private placement in September 2009. The exchange of these securities listed above are restricted by Article 43 paragraph 8 of the Securities and Exchange Law. The above-mentioned restriction of Ralink,
INPAQ, First International Telecom, E-One, A-DATA and TOPOINT will be removed on September 29, 2010, January 31, 2011, April 25, 2011, August 31, 2012, September 30, 2012 and September 23, 2012,
respectively.



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UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



11. LONG-TERM INVESTMENTS ACCOUNTED FOR UNDER THE EQUITY METHOD



| | a. | Details of long-term investments accounted for under the equity method are as follows:
| | -- | --------------------------------------------------------------------------------------



|                                                        |  |                    |  |                                        |  |            |  |                                       
|------------------------------------------------------- |  | ------------------ |  | -------------------------------------- |  | ---------- |  | --------------------------------------
|                                                        |  | As of December 31,
|                                                        |  | 2008               |  | 2009                                  
|Investee Companies                                      |  | Amount             |  | Percentage ofOwnership orVoting Rights |  | Amount     |  | Percentage ofOwnership orVoting Rights
|                                                        |  | NT$000            |  | %                                      |  | NT$000    |  | %                                     
|                                                        |  |                    |  |                                       
|Unlisted companies                                      |  |                    |  |                                        |  |            |  |                                       
|UNITED MICRODISPLAY OPTRONICS CORP. (UMO) (Note A)      |  |                   |  |                                       |  | 35,237     |  | 89.99                                 
|PACIFIC VENTURE CAPITAL CO., LTD. (PACIFIC) (Note B)    |  | 7,379              |  | 49.99                                  |  | 7,379      |  | 49.99                                 
|LIST EARN ENTERPRISE INC.                               |  |                   |  |                                       |  | 9,804      |  | 49.00                                 
|ACHIEVE MADE INTERNATIONAL LTD.                         |  | 29,297             |  | 48.03                                  |  | 60,790     |  | 48.54                                 
|ALLIANCE OPTOTEK CORP.                                  |  | 58,386             |  | 27.63                                  |  | 207,762    |  | 48.05                                 
|WALTOP INTERNATIONAL CORP.                              |  | 171,728            |  | 34.79                                  |  | 223,090    |  | 46.58                                 
|MTIC HOLDING PTE. LTD.                                  |  | 263,192            |  | 46.49                                  |  | 248,901    |  | 46.49                                 
|NEXPOWER TECHNOLOGY CORP.                               |  | 2,945,835          |  | 38.76                                  |  | 3,301,451  |  | 45.97                                 
|YUNG LI INVESTMENTS, INC.                               |  | 251,165            |  | 45.16                                  |  | 248,873    |  | 45.16                                 
|MEGA MISSION LIMITED PARTNERSHIP                        |  | 1,504,963          |  | 45.00                                  |  | 2,093,900  |  | 45.00                                 
|AEVOE INTERNATIONAL LTD.                                |  | 24,190             |  | 43.92                                  |  | 46,358     |  | 43.77                                 
|POWER LIGHT TECH CO., LTD.                              |  |                   |  |                                       |  | 121,625    |  | 42.62                                 
|UNITECH CAPITAL INC.                                    |  | 525,898            |  | 42.00                                  |  | 900,893    |  | 42.00                                 
|HSUN CHIEH INVESTMENT CO., LTD.                         |  | 1,396,484          |  | 36.49                                  |  | 3,617,026  |  | 36.49                                 
|UC FUND II                                              |  | 117,041            |  | 35.45                                  |  | 98,655     |  | 35.45                                 
|CRYSTAL MEDIA INC.                                      |  | 40,670             |  | 32.60                                  |  | 38,735     |  | 32.27                                 
|XGI TECHNOLOGY INC.                                     |  | 74,731             |  | 33.57                                  |  | 62,977     |  | 31.93                                 
|CTC CAPITAL PARTNERS I, L. P.                           |  | 147,728            |  | 31.40                                  |  | 143,863    |  | 31.40                                 
|AMIC TECHNOLOGY CORP. (AMIC) (Note C)                   |  | 30,902             |  | 25.87                                  |  |           |  | 25.87                                 
|UNIMICRON HOLDING LIMITED                               |  | 566,380            |  | 25.25                                  |  | 538,880    |  | 25.25                                 
|ANOTO TAIWAN CORP.                                      |  | 12,287             |  | 39.20                                  |  | 5,819      |  | 24.12                                 
|HIGH POWER LIGHTING CORP.                               |  | 48,044             |  | 22.29                                  |  | 43,418     |  | 22.29                                 
|MOBILE DEVICES INC.                                     |  | 48,436             |  | 21.03                                  |  | 38,631     |  | 20.18                                 
|TRANSLINK CAPITAL PARTNERS I L. P. (TRANSLINK) (Note D) |  | 56,485             |  | 11.82                                  |  | 74,875     |  | 10.55                                 
|UWAVE TECHNOLOGY CORP. (UWAVE) (Note E)                 |  |                   |  | 48.64                                  |  |           |  |                                      
|                                                        |  |                    |  |                                        |  |            |  |                                       
|Total                                                   |  | 8,321,221          |  |                                        |  | 12,168,942 |  |                                       
|                                                        |  |                    |  |                                        |  |            |  |                                       



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UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



|       |  |   |  |                                                                                                                                                                                    
|------ |  | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|Note A |  | : |  | On June 26, 2009, UMO has filed for liquidation through a decision at its stockholders meeting. The liquidation has not been completed as of December 31, 2009.                   
|       |  |  
|Note B |  | : |  | On June 27, 2006, PACIFIC set July 3, 2006 as its liquidation date through a decision at its stockholders meeting. The liquidation has not been completed as of
December 31, 2009.
|       |  |  
|Note C |  | : |  | As of December 31, 2009, the investment amount of AMIC is negative NT$3 million, and it is reclassified to other liabilities-others.                                               
|       |  |  
|Note D |  | : |  | According to the partnership contract, the Company has significant influence over TRANSLINK, and it is accounted for under the equity method.                                      
|       |  |  
|Note E |  | : |  | On June 29, 2007, UWAVE reached the decision to liquidate the company at its stockholders meeting. The liquidation has been completed as of September 15, 2009.                   



| | b. | The change of investees equity was charged to the Companys equity in proportion to the ownership percentage. For the years ended December 31, 2008 and
2009, the changes charged to additional paid-in capital were an increase of NT$203 million and a decrease of NT$6,912 million, respectively, and the changes charged to retained earnings were nil and an increase of NT$6,775 million, respectively.
| | -- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | c. | Total gains (losses) arising from investments accounted for under the equity method were a loss of NT$10,465 million and a gain of NT$180 million for the years ended
December 31, 2008 and 2009, respectively. Investment loss amounted to NT$9,445 million and NT$11 million for the years ended December 31, 2008 and 2009, respectively, and the related long-term investment balances of NT$3,040 million and
NT$5,355 million as of December 31, 2008 and 2009, respectively, were determined based on the investees financial statements audited by the other auditors.
| | -- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | d. | The long-term equity investments were not pledged.
| | -- | --------------------------------------------------



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UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



12. PROPERTY, PLANT AND EQUIPMENT



|                                         |  |                         |  |                         |   |  |                       |  |            
|---------------------------------------- |  | ----------------------- |  | ----------------------- | - |  | --------------------- |  | -----------
|                                         |  | As of December 31, 2008
|                                         |  | Cost                    |  | AccumulatedDepreciation |   |  | AccumulatedImpairment |  | Book Value 
|                                         |  | NT$000                 |  | NT$000                 |   |  | NT$000               |  | NT$000    
|Land                                     |  | 2,269,237               |  |                        |   |  |                      |  | 2,269,237  
|Buildings                                |  | 24,354,334              |  | (9,897,661              | ) |  |                      |  | 14,456,673 
|Machinery and equipment                  |  | 459,711,569             |  | (373,639,088            | ) |  |                      |  | 86,072,481 
|Transportation equipment                 |  | 76,742                  |  | (66,334                 | ) |  |                      |  | 10,408     
|Furniture and fixtures                   |  | 3,582,387               |  | (2,891,844              | ) |  |                      |  | 690,543    
|Leasehold improvement                    |  | 53,432                  |  | (42,391                 | ) |  |                      |  | 11,041     
|Construction in progress and prepayments |  | 4,899,607               |  |                        |   |  |                      |  | 4,899,607  
|                                         |  |                         |  |                         |   |  |                       |  |            
|Total                                    |  | 494,947,308             |  | (386,537,318            | ) |  |                      |  | 108,409,990
|                                         |  |                         |  |                         |   |  |                       |  |            



|                                         |  |                         |  |                         |   |  |                       |   |  |           
|---------------------------------------- |  | ----------------------- |  | ----------------------- | - |  | --------------------- | - |  | ----------
|                                         |  | As of December 31, 2009
|                                         |  | Cost                    |  | AccumulatedDepreciation |   |  | AccumulatedImpairment |   |  | Book Value
|                                         |  | NT$000                 |  | NT$000                 |   |  | NT$000               |   |  | NT$000   
|Land                                     |  | 1,056,823               |  |                        |   |  | (287,901              | ) |  | 768,922   
|Buildings                                |  | 21,097,255              |  | (9,388,142              | ) |  | (1,057,850            | ) |  | 10,651,263
|Machinery and equipment                  |  | 453,597,613             |  | (393,557,900            | ) |  | (512,540              | ) |  | 59,527,173
|Transportation equipment                 |  | 68,580                  |  | (61,430                 | ) |  |                      |   |  | 7,150     
|Furniture and fixtures                   |  | 3,324,352               |  | (2,845,876              | ) |  | (10,677               | ) |  | 467,799   
|Leasehold improvement                    |  | 53,411                  |  | (45,762                 | ) |  |                      |   |  | 7,649     
|Construction in progress and prepayments |  | 18,166,404              |  |                        |   |  |                      |   |  | 18,166,404
|                                         |  |                         |  |                         |   |  |                       |   |  |           
|Total                                    |  | 497,364,438             |  | (405,899,110            | ) |  | (1,868,968            | ) |  | 89,596,360
|                                         |  |                         |  |                         |   |  |                       |   |  |           



| | a. | Total interest expense before capitalization amounted to NT$266 million, NT$109 million and NT$180 million for the years ended December 31, 2007, 2008 and 2009,
respectively.
| | -- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Details of capitalized interest are as follows:



|                           |  |                                  |  |             |  |            
|-------------------------- |  | -------------------------------- |  | ----------- |  | -----------
|                           |  | For the years ended December 31,
|                           |  | 2007                             |  | 2008        |  | 2009       
|                           |  | NT$000                          |  | NT$000     |  | NT$000    
|Buildings                  |  | 3,597                            |  | 16,203      |  | 43,241     
|Machinery and equipment    |  | 80,382                           |  | 21,679      |  | 78,092     
|Others                     |  | 649                              |  | 62          |  | 140        
|                           |  |                                  |  |             |  |            
|Total interest capitalized |  | 84,628                           |  | 37,944      |  | 121,473    
|                           |  |                                  |  |             |  |            
|                           |  |                                  | 
|Interest rates applied     |  | 0.67%~0.92%                      |  | 0.11%~1.22% |  | 1.07%~3.90%
|                           |  |                                  |  |             |  |            



| | b. | Please refer to Note 28 for property, plant and equipment pledged as collateral.
| | -- | --------------------------------------------------------------------------------



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UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



13. OTHER ASSETSOTHERS



|              |  |                    |  |          
|------------- |  | ------------------ |  | ---------
|              |  | As of December 31,
|              |  | 2008               |  | 2009     
|              |  | NT$000            |  | NT$000  
|Leased assets |  | 1,157,729          |  | 1,041,586
|Deposits-out  |  | 772,849            |  | 727,366  
|Others        |  | 251,199            |  | 155,516  
|              |  |                    |  |          
|Total         |  | 2,181,777          |  | 1,924,468
|              |  |                    |  |          

Please refer to Note 28 for Deposits-out pledged as collateral.

14. IMPAIRMENT LOSS



|                                                |  |                                  |  |            |  |          
|----------------------------------------------- |  | -------------------------------- |  | ---------- |  | ---------
|                                                |  | For the years ended December 31,
|                                                |  | 2007                             |  | 2008       |  | 2009     
|                                                |  | NT$000                          |  | NT$000    |  | NT$000  
|Available-for-sale financial assets, noncurrent |  | 371,194                          |  | 8,386,596  |  |         
|Financial assets measured at cost, noncurrent   |  | 196,898                          |  | 943,084    |  | 494,091  
|Goodwill                                        |  |                                 |  | 3,491,073  |  |         
|Property, plant and equipment                   |  | 7,692                            |  | 39,148     |  | 3,331,557
|Others assets                                   |  |                                 |  | 319,957    |  | 181,430  
|                                                |  |                                  |  |            |  |          
|Total                                           |  | 575,784                          |  | 13,179,858 |  | 4,007,078
|                                                |  |                                  |  |            |  |          

As of December 31, 2008 and 2009, the Company determined that
goodwill, certain property, plant and equipment and idle assets would not generate future cash flows. The Company determined the recoverable amounts of these assets based on the fair values less costs to sell. The impairment test revealed that the
total carrying amount of these assets was greater than their total recoverable amount, and the Company recognized an impairment loss amounted to NT$3,850 million and NT$122 million for the years ended December 31, 2008 and 2009, respectively.
For the year ended December 31, 2009, according to the assessment report and as a result of the impairment loss testing, the subsidiary recognized an impairment loss amounted to NT$3,391 million for its property, plant, equipment and other
assets. After considering objective evidence and as a result of the impairment loss testing the Company recognized impairment losses amounting to NT$9,330 million and NT$494 million for its available-for-sale financial assets, noncurrent and
financial assets measured at cost, noncurrent for the years ended December 31, 2008 and 2009, respectively.



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UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



15. SHORT-TERM LOANS



|                     |  |                                  |   |  |            |  
|-------------------- |  | -------------------------------- | - |  | ---------- | -
|                     |  | As of December 31,               |  
|                     |  | 2008                             |   |  | 2009       |  
|                     |  | NT$000                          |   |  | NT$000    |  
|Unsecured bank loans |  | 132,610                          |   |  | 128,682    |  
|                     |  |                                  |   |  |            |  
|                     | 
|                     |  | For the years ended December 31, |  
|                     |  | 2008                             |   |  | 2009       |  
|Interest rates       |  | 2.96%~3.72                       | % |  | 0.58%~3.72 | %
|                     |  |                                  |   |  |            |  

The Companys unused short-term lines of credits amounted to NT$12,411 million and NT$12,088 million as of
December 31, 2008 and 2009, respectively.

16. FINANCIAL LIABILITIES AT FAIR VALUE THROUGH PROFIT OR LOSS



|                                           |  |                    |  |          
|------------------------------------------ |  | ------------------ |  | ---------
|                                           |  | As of December 31,
|                                           |  | 2008               |  | 2009     
|                                           |  | NT$000            |  | NT$000  
|Derivatives embedded in exchangeable bonds |  |                   |  | 1,914,879
|Interest rate swap agreements              |  | 33,189             |  |         
|                                           |  |                    |  |          
|Total                                      |  | 33,189             |  | 1,914,879
|                                           |  |                    |  |          

During the years ended December 31, 2008 and 2009, net losses
arising from financial liabilities at fair value through profit or loss were NT$1,046 million and NT$815 million, respectively.

17. BONDS
PAYABLE



|                                 |  |                    |   |  |             |  
|-------------------------------- |  | ------------------ | - |  | ----------- | -
|                                 |  | As of December 31, |  
|                                 |  | 2008               |   |  | 2009        |  
|                                 |  | NT$000            |   |  | NT$000     |  
|Unsecured domestic bonds payable |  | 7,500,000          |   |  | 7,500,000   |  
|Exchangeable bonds payable       |  |                   |   |  | 6,472,692   |  
|Less: discounts on bonds payable |  | (2,890             | ) |  | (1,205,555  | )
|                                 |  |                    |   |  |             |  
|Total                            |  | 7,497,110          |   |  | 12,767,137  |  
|Less: Current portion            |  |                   |   |  | (12,767,137 | )
|                                 |  |                    |   |  |             |  
|Net                              |  | 7,497,110          |   |  |            |  
|                                 |  |                    |   |  |             |  



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UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



| | a. | During the period from April 16 to April 27, 2001, UMC issued five-year and seven-year unsecured bonds totaled NT$15,000 million, each with a face value of
NT$7,500 million. The interest is paid annually with stated interest rates of 5.1195% through 5.1850% and 5.2170% through 5.2850%, respectively. The five-year and seven-year bonds were due starting from April 2004 to April 2006 and April 2006 to
April 2008, respectively, both in three yearly installments at the rates of 30%, 30% and 40%. On April 27, 2006 and April 27, 2008, the five-year and seven-year bonds were fully repaid, respectively.
| | -- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | b. | On May 10, 2002, UMC issued zero coupon exchangeable bonds listed on the EuroMTF Market of the Luxembourg Stock Exchange (LSE). The terms and conditions of the
bonds were as follows:
| | -- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | (a) | Issue Amount: US$235 million
| | --- | ----------------------------



| | (b) | Period: May 10, 2002 ~ May 10, 2007
| | --- | -----------------------------------



| | (c) | Redemption
| | --- | ----------



| | i. | UMC may redeem the bonds, in whole or in part, after three months of the issuance and prior to the maturity date, at their principal amount if the closing price of the
AU Optronics Corp. (AUO) common shares on the TSE, translated into US dollars at the prevailing exchange rate, for a period of 20 consecutive trading days, the last of which occurs not more than 10 days prior to the date upon which notice of such
redemption is published, is at least 120% of the exchange price then in effect translated into US dollars at the rate of NT$34.645=US$1.00.
| | -- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | ii. | UMC may redeem the bonds, in whole, but not in part, if at least 90% in principal amount of the bonds has already been exchanged, redeemed or purchased and cancelled.
| | --- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | iii. | UMC may redeem all, but not in part, of the bonds, at any time, in the event of certain changes in the R.O.C. tax rules which would require UMC to gross up for payments
of principal, or to gross up for payments of interest or premium.
| | ---- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | iv. | UMC could have, at the option of the bondholders, redeemed such bonds on February 10, 2005 at its principal amount.
| | --- | -------------------------------------------------------------------------------------------------------------------



| | (d) | Terms of Exchange
| | --- | -----------------



| | i. | Underlying Securities: ADSs or common shares of AUO.
| | -- | ----------------------------------------------------



| | ii. | Exchange Period: The bonds were exchangeable at any time on or after June 19, 2002 and prior to April 10, 2007, into AUO common shares or AUO ADSs; provided,
however, that if the exercise date falls within 5 business days from the beginning of, and during, any closed period, the right of the exchanging holder of the bonds to vote with respect to the shares it receives were subject to certain
restrictions.
| | --- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



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UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



| | iii. | Exchange Price and Adjustment: The exchange price was NT$44.3 per share, determined on the basis of a fixed exchange rate of NT$34.645=US$1.00. The exchange price will
be subject to adjustments upon the occurrence of certain events set out in the indenture.
| | ---- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | (e) | Exchange of the Bonds
| | --- | ---------------------

As of
December 31, 2007, certain bondholders exercised their rights to exchange their bonds with the total principal amount of US$235 million into AUO shares. Gains arising from the exercise of exchange rights during the year ended December 31,
2007 amounted to NT$2,782 million was recognized as gain on disposal of investments.



| | (f) | Redemption at Maturity Date
| | --- | ---------------------------

At
the maturity date of May 10, 2007, UMC redeemed all of the remaining bonds outstanding in the principal amount of US$0.3 million.



| | c. | During the period from May 21 to June 24, 2003, UMC issued five-year and seven-year unsecured bonds totaled NT$15,000 million, each with a face value of
NT$7,500 million. The interest is paid annually with stated interest rates of 4.0% minus USD 12-Month LIBOR and 4.3% minus USD 12-Month LIBOR, respectively. Stated interest rates are reset annually based on the prevailing USD 12-Month LIBOR. The
five-year bonds and seven-year bonds are repayable in 2008 and 2010, respectively, upon the maturity of the bonds. On June 24, 2008, the five-year bonds were fully redeemed.
| | -- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | d. | On October 5, 2005, UMC issued zero coupon convertible bonds on the LSE. The terms and conditions of the bonds are as follows:
| | -- | ------------------------------------------------------------------------------------------------------------------------------



| | (a) | Issue Amount: US$381.4 million
| | --- | ------------------------------



| | (b) | Period: October 5, 2005 ~ February 15, 2008 (Maturity date)
| | --- | -----------------------------------------------------------



| | (c) | Redemption
| | --- | ----------



| | i. | On or at any time after April 5, 2007, if the closing price of the ADSs listed on the NYSE has been at least 130% of either the conversion price or the last
adjusted conversion price, for 20 out of 30 consecutive ADS trading days, UMC may redeem all, but not in part, of the bonds.
| | -- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | ii. | If at least 90% in principal amount of the bonds had already been redeemed, repurchased, cancelled or converted, UMC may redeem all, but not in part, of the bonds.
| | --- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------



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UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



| | iii. | In the event that UMCs ADSs or shares have officially ceased to be listed or permitted for trading on the NYSE or the TSE, as the case may be, each bondholder
would have had the right, at such bondholders option, to require UMC to repurchase all, but not in part, of such bondholders bonds at their principal amount.
| | ---- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | iv. | In the event of certain changes in taxation in the R.O.C. resulting in UMC becoming required to pay additional amounts, UMC may redeem all, but not in part, of the
bonds at their principal amount; bondholders may elect not to have their bonds redeemed by UMC in such event, in which case the bondholders would not be entitled to receive payments of such additional amounts.
| | --- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | v. | If a significant change of control occurs with respect to UMC, each bondholder would have had the right at such bondholders option, to require UMC to repurchase
all, but not in part, of such bondholders bonds at their principal amount.
| | -- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | vi. | UMC redeemed the principal amount of the bonds on their maturity date, February 15, 2008.
| | --- | -----------------------------------------------------------------------------------------



| | (d) | Conversion
| | --- | ----------



| | i. | Conversion Period: Except for the closed period, the bonds may be converted into UMCs ADSs on or after November 4, 2005 and on or prior to February 5,
2008.
| | -- | -------------------------------------------------------------------------------------------------------------------------------------------------------------



| | ii. | Conversion Price and Adjustment: The conversion price was US$4.253 per ADS. The applicable conversion price was subject to adjustments upon the occurrence of certain
events set out in the indenture.
| | --- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | (e) | Redemption at Maturity Date
| | --- | ---------------------------

At
the maturity date of February 15, 2008, UMC had redeemed the bonds at the principal amount.



| | e. | On December 2, 2009, UMC issued SGX-ST listed zero coupon exchangeable bonds. The terms and conditions of the bonds are as follows:
| | -- | -----------------------------------------------------------------------------------------------------------------------------------



| | (a) | Issue Amount: US$127.2 million
| | --- | ------------------------------



| | (b) | Period: December 2, 2009 ~ December 2, 2014 (Maturity date)
| | --- | -----------------------------------------------------------



| | (c) | Redemption
| | --- | ----------



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UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



| | i | UMC may redeem the bonds, in whole or in part, after 12 months of the issuance and prior to the maturity date, at the principal amount of the bonds with an interest
calculated at the rate of -0.5% per annum (the Early Redemption Price) if the closing price of the common shares of Unimicron Technology Corporation (Unimicron) on the TSE, translated into US dollars at the prevailing exchange rate, for a
period of 20 consecutive trading days, the last of which occurs not more than 10 days prior to the date upon which notice of such redemption is published, is at least 130% of the exchange price then in effect translated into US dollars at the rate
of NTD 32.197=USD 1.00.
| | - | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | ii | UMC may redeem the bonds, in whole, but not in part, at the Early Redemption Price if at least 90% in principal amount of the bonds has already been exchanged, redeemed
or purchased and cancelled.
| | -- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | iii | UMC may redeem all, but not part, of the bonds, at the Early Redemption Price at any time, in the event of certain changes in the ROCs tax rules which would
require UMC to gross up for payments of principal, or to gross up for payments of interest or premium.
| | --- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | iv | All, or any portion, of the bonds will be redeemable in US dollars at the option of bondholders on December 2, 2011 at 99% of the principal amount.
| | -- | ---------------------------------------------------------------------------------------------------------------------------------------------------



| | v | Bondholders have the right to require UMC to redeem all or any portion of the bonds at the Early Redemption Price if the common shares of the exchanged securities are
officially delisted on the TSE for a period of five consecutive trading days.
| | - | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | vi | In the event that a change of control as defined in the indenture of the bonds occurs to UMC or Unimicron, the bondholders shall have the right to require UMC to redeem
the bonds, in whole or in part, at the Early Redemption Price.
| | -- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | (d) | Terms of Exchange
| | --- | -----------------



| | i | Underlying Securities: Common shares of Unimicron.
| | - | --------------------------------------------------



| | ii | Exchange Period: The bonds are exchangeable at any time on or after January 1, 2010 and prior to November 22, 2014, into Unimicron common shares; provided,
however, that if the exercise date falls within 5 business days from the beginning of, and during, any closed period, the right of the exchanging holder of the bonds to vote with respect to the shares it receives will be subject to certain
restrictions.
| | -- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | iii | Exchange Price and Adjustment: The exchange price is NTD51.1875 per share, determined on the basis of a fixed exchange rate of NTD 32.197=USD 1.00. The exchange price
will be subject to adjustments upon the occurrence of certain events set out in the indenture.
| | --- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



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UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



| | (e) | Redemption on the Maturity Date: On the maturity date, UMC will redeem the bonds at 97.53% of the principal amount unless, prior to such date:
| | --- | ----------------------------------------------------------------------------------------------------------------------------------------------



| | i | UMC shall have redeemed the bonds at the option of UMC, or the bonds shall have been redeemed at option of the bondholder;
| | - | --------------------------------------------------------------------------------------------------------------------------



| | ii | The bondholders shall have exercised the exchange right before maturity; or
| | -- | ---------------------------------------------------------------------------



| | iii | The bonds shall have been redeemed or purchased by UMC and cancelled.
| | --- | ---------------------------------------------------------------------



| | f. | On December 2, 2009, UMC issued SGX-ST listed zero coupon exchangeable bonds. The terms and conditions of the bonds are as follows:
| | -- | -----------------------------------------------------------------------------------------------------------------------------------



| | (a) | Issue Amount: US$80 million
| | --- | ---------------------------



| | (b) | Period: December 2, 2009 ~ December 2, 2014 (Maturity date)
| | --- | -----------------------------------------------------------



| | (c) | Redemption
| | --- | ----------



| | i | UMC may redeem the bonds, in whole or in part, after 12 months of the issuance and prior to the maturity date, at the principal amount of the bonds with an interest
calculated at the rate of -0.5% per annum (the Early Redemption Price) if the closing price of the common shares of Novatek Microelectronics Corp., Ltd. (Novatek) on the TSE, translated into US dollars at the prevailing exchange rate, for a
period of 20 consecutive trading days, the last of which occurs not more than 10 days prior to the date upon which notice of such redemption is published, is at least 130% of the exchange price then in effect translated into US dollars at the rate
of NTD 32.197=USD 1.00.
| | - | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | ii | UMC may redeem the bonds, in whole, but not in part, at the Early Redemption Price if at least 90% in principal amount of the bonds has already been exchanged, redeemed
or purchased and cancelled.
| | -- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | iii | UMC may redeem all, but not part, of the bonds, at the Early Redemption Price at any time, in the event of certain changes in the ROCs tax rules which would
require UMC to gross up for payments of principal, or to gross up for payments of interest or premium.
| | --- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | iv | All, or any portion, of the bonds will be redeemable in US dollars at the option of bondholders on December 2, 2011 at 99% of the principal amount.
| | -- | ---------------------------------------------------------------------------------------------------------------------------------------------------



| | v | Bondholders have the right to require UMC to redeem all or any portion of the bonds at the Early Redemption Price if the common shares of the exchanged securities are
officially delisted on the TSE for a period of five consecutive trading days.
| | - | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



| | vi | In the event that a change of control as defined in the indenture of the bonds occurs to UMC or Novatek, the bondholders shall have the right to require UMC to redeem
the bonds, in whole or in part, at the Early Redemption Price.
| | -- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | (d) | Terms of Exchange
| | --- | -----------------



| | i | Underlying Securities: Common shares of Novatek.
| | - | ------------------------------------------------



| | ii | Exchange Period: The bonds are exchangeable at any time on or after January 1, 2010 and prior to November 22, 2014, into Novatek common shares; provided,
however, that if the exercise date falls within 5 business days from the beginning of, and during, any closed period, the right of the exchanging holder of the bonds to vote with respect to the shares it receives will be subject to certain
restrictions.
| | -- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | iii | Exchange Price and Adjustment: The exchange price is NTD108.58 per share, determined on the basis of a fixed exchange rate of NTD 32.197=USD 1.00. The exchange price
will be subject to adjustments upon the occurrence of certain events set out in the indenture.
| | --- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | (e) | Redemption on the Maturity Date: On the maturity date, UMC will redeem the bonds at 97.53% of the principal amount unless, prior to such date:
| | --- | ----------------------------------------------------------------------------------------------------------------------------------------------



| | i. | UMC shall have redeemed the bonds at the option of UMC, or the bonds shall have been redeemed at option of the bondholder;
| | -- | --------------------------------------------------------------------------------------------------------------------------



| | ii. | The bondholders shall have exercised the exchange right before maturity; or
| | --- | ---------------------------------------------------------------------------



| | iii. | The bonds shall have been redeemed or purchased by UMC and cancelled.
| | ---- | ---------------------------------------------------------------------



| | g. | Repayments of the above-mentioned bonds in the future year are as follows:
| | -- | --------------------------------------------------------------------------



|                       |  |           
|---------------------- |  | ----------
|Bonds repayable (Year) |  | Amount    
|                       |  | NT$000   
|2010                   |  | 7,500,000 
|2014                   |  | 6,472,692 
|                       |  |           
|Total                  |  | 13,972,692
|                       |  |           



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UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



18. LONG-TERM LOANS



| | a. | Details of long-term loans as of December 31, 2008 and 2009 are as follows:
| | -- | ---------------------------------------------------------------------------



|                                                                 |  |                                     |   |  |                                                                                           
|---------------------------------------------------------------- |  | ----------------------------------- | - |  | ------------------------------------------------------------------------------------------
|Lender                                                           |  | As of December 31,2008              |   |  | Redemption                                                                                
|                                                                 |  | NT$000                             |   |  |                                                                                           
|Unsecured Long-Term Loan from Taiwan Cooperative Bank            |  | 200,000                             |   |  | Repayable quarterly from March 30, 2009 to December 30, 2011 and interest is paid monthly.
|Secured Long-Term Loan from Bank of Taiwan                       |  | 500,000                             |   |  | Repayable quarterly from March 30, 2011 to December 30, 2013 and interest is paid monthly.
|                                                                 |  |                                     |   |  |                                                                                           
|Subtotal                                                         |  | 700,000                             |   |  |                                                                                           
|Less: Current portion                                            |  | (66,667                             | ) |  |                                                                                           
|                                                                 |  |                                     |   |  |                                                                                           
|Total                                                            |  | 633,333                             |   |  |                                                                                           
|                                                                 |  |                                     |   |  |                                                                                           
|                                                                 |  |                                    
|                                                                 |  | For the year endedDecember 31, 2008 |   |  |                                                                                           
|Interest Rates                                                   |  | 1.815%~2.610                        | % |  |                                                                                           
|                                                                 |  |                                     |   |  |                                                                                           
|                                                                 |  |                                    
|Lender                                                           |  | As of December 31,2009              |   |  | Redemption                                                                                
|                                                                 |  | NT$000                             |   |  |                                                                                           
|Secured Long-Term Loan from Bank of Taiwan                       |  | 700,000                             |   |  | Repayable quarterly from March 30, 2011 to December 30, 2013 and interest is paid monthly.
|Unsecured Long-Term Loan from Mega International Commercial Bank |  | 100,000                             |   |  | Repayable quarterly from May 25, 2010 to May 25, 2012 and interest is paid monthly.       
|                                                                 |  |                                     |   |  |                                                                                           
|Subtotal                                                         |  | 800,000                             |   |  |                                                                                           
|Less: Current portion                                            |  | (33,450                             | ) |  |                                                                                           
|                                                                 |  |                                     |   |  |                                                                                           
|Total                                                            |  | 766,550                             |   |  |                                                                                           
|                                                                 |  |                                     |   |  |                                                                                           
|                                                                 |  |                                    
|                                                                 |  | For the year endedDecember 31, 2009 |   |  |                                                                                           
|Interest Rates                                                   |  | 1.275%~1.815                        | % |  |                                                                                           
|                                                                 |  |                                     |   |  |                                                                                           



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UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



| | b. | The long-term loans on December 31, 2009 will be repaid by installments with the last payment on December 30, 2013. Repayments in the coming years
respectively are as follows:
| | -- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|                                 |  |        
|-------------------------------- |  | -------
|Long-Term Loans repayable (Year) |  | Amount 
|                                 |  | NT$000
|2010                             |  | 33,450 
|2011                             |  | 277,934
|2012                             |  | 255,283
|2013                             |  | 233,333
|                                 |  |        
|Total                            |  | 800,000
|                                 |  |        



| | c. | Please refer to Note 28 for property, plant and equipment pledged as collateral for long- term loans.
| | -- | -----------------------------------------------------------------------------------------------------

19. PENSION PLAN



| | a. | The Labor Pension Act of the R.O.C. (the Act), which adopts a defined contribution plan, became effective on July 1, 2005. Employees eligible for the Labor
Standards Law, a defined benefit plan, were offered the options to elect the pension calculation under the Act or continue to be subject to the pension calculation under the Labor Standards Law. Those employees that elected to be subject to the Act
will have their seniority achieved under the Labor Standards Law retained upon election of the Act, and the Company will make monthly contributions of no less than 6% of these employees monthly wages to the employees individual pension
accounts. The Company has made monthly contributions based on each individual employees salary or wage to employees pension accounts beginning July 1, 2005 and a total of NT$399 million and NT$354 million were contributed by the
Company for the years ended December 31, 2008 and 2009, respectively. Pension benefits for employees of the Branch and subsidiaries overseas are provided in accordance with the local regulations, and during the years ended December 31,
2008 and 2009, the Company made contributions of NT$112 million and NT$162 million, respectively.
| | -- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



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UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



| | b. | The defined benefit plan under the Labor Standards Law is disbursed based on the units of service years and the average salary in the last month of the service year.
Two units per year are awarded for the first 15 years of services while one unit per year is awarded after the completion of the fifteenth year. The total units shall not exceed 45 units. In accordance to the plan, the Company contributes an amount
equivalent to 2% of the employees total salaries and wages on a monthly basis to the pension fund deposited at the Bank of Taiwan in the name of an administered pension fund committee. Government authority will collect the fund as a Labor
Retirement Fund and determine the allocation and investment policy of the assets. The defined benefit plan assets and obligations are measured as of December 31. The unrecognized net asset or obligation at transition based on actuarial
valuation is amortized on a straight-line basis over 15 years.
| | -- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | c. | Change in benefit obligation during the year:
| | -- | ---------------------------------------------



|                                                  |  |                                  |   |  |            |  
|------------------------------------------------- |  | -------------------------------- | - |  | ---------- | -
|                                                  |  | For the years ended December 31, |  
|                                                  |  | 2008                             |   |  | 2009       |  
|                                                  |  | NT$000                          |   |  | NT$000    |  
|Projected benefit obligation at beginning of year |  | (4,648,257                       | ) |  | (4,563,300 | )
|Service cost                                      |  | (130,570                         | ) |  | (109,946   | )
|Interest cost                                     |  | (155,276                         | ) |  | (117,538   | )
|Benefits paid                                     |  | 150,704                          |   |  | 166,056    |  
|Gain (loss) on projected benefit obligation       |  | 393,328                          |   |  | (607,063   | )
|Exchange gain (loss)                              |  | (173,229                         | ) |  | 42,679     |  
|                                                  |  |                                  |   |  |            |  
|Projected benefit obligation at end of year       |  | (4,563,300                       | ) |  | (5,189,112 | )
|                                                  |  |                                  |   |  |            |  



| | d. | Change in pension assets during the year:
| | -- | -----------------------------------------



|                                               |  |                                  |   |  |           |  
|---------------------------------------------- |  | -------------------------------- | - |  | --------- | -
|                                               |  | For the years ended December 31, |  
|                                               |  | 2008                             |   |  | 2009      |  
|                                               |  | NT$000                          |   |  | NT$000   |  
|Fair value of plan assets at beginning of year |  | 1,962,569                        |   |  | 1,973,407 |  
|Actual gain (loss) on plan assets              |  | (182,392                         | ) |  | 78,775    |  
|Contributions from employer                    |  | 172,938                          |   |  | 148,389   |  
|Benefits paid                                  |  | (150,704                         | ) |  | (166,057  | )
|Exchange gain (loss) and others                |  | 170,996                          |   |  | (38,544   | )
|                                               |  |                                  |   |  |           |  
|Fair value of plan assets at end of year       |  | 1,973,407                        |   |  | 1,995,970 |  
|                                               |  |                                  |   |  |           |  



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UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



| | e. | The funding status of the pension plan is as follows:
| | -- | -----------------------------------------------------



|                                                                         |  |                    |   |  |            |  
|------------------------------------------------------------------------ |  | ------------------ | - |  | ---------- | -
|                                                                         |  | As of December 31, |  
|                                                                         |  | 2008               |   |  | 2009       |  
|                                                                         |  | NT$000            |   |  | NT$000    |  
|Benefit obligation                                                       |  |                    |   |  |            |  
|Vested benefit obligation                                                |  | (938,677           | ) |  | (866,292   | )
|Non-vested benefit obligation                                            |  | (1,781,909         | ) |  | (1,973,956 | )
|                                                                         |  |                    |   |  |            |  
|Accumulated benefit obligation                                           |  | (2,720,586         | ) |  | (2,840,248 | )
|Effect from projected salary increase                                    |  | (1,842,714         | ) |  | (2,348,864 | )
|                                                                         |  |                    |   |  |            |  
|Projected benefit obligation                                             |  | (4,563,300         | ) |  | (5,189,112 | )
|Fair value of plan assets                                                |  | 1,973,407          |   |  | 1,995,970  |  
|                                                                         |  |                    |   |  |            |  
|Funded status                                                            |  | (2,589,893         | ) |  | (3,193,142 | )
|Unrecognized net transitional benefit obligation                         |  | 57,953             |   |  | 29,662     |  
|Unrecognized gain                                                        |  | (678,124           | ) |  | (97,977    | )
|Adjustment required to recognize minimum liabilities                     |  | (352               | ) |  |           |  
|Others                                                                   |  | (8,676             | ) |  |           |  
|                                                                         |  |                    |   |  |            |  
|Accrued pension liabilities recognized on the consolidated balance sheet |  | (3,219,092         | ) |  | (3,261,457 | )
|                                                                         |  |                    |   |  |            |  



| | f. | The components of the net periodic pension cost are as follows:
| | -- | ---------------------------------------------------------------



|                                                                 |  |                                  |   |  |         |   |  |         |  
|---------------------------------------------------------------- |  | -------------------------------- | - |  | ------- | - |  | ------- | -
|                                                                 |  | For the years ended December 31, |  
|                                                                 |  | 2007                             |   |  | 2008    |   |  | 2009    |  
|                                                                 |  | NT$000                          |   |  | NT$000 |   |  | NT$000 |  
|Service cost                                                     |  | 124,193                          |   |  | 130,570 |   |  | 109,950 |  
|Interest cost                                                    |  | 136,017                          |   |  | 155,276 |   |  | 117,538 |  
|Expected return on plan assets                                   |  | (63,880                          | ) |  | (67,691 | ) |  | (44,831 | )
|Amortization of unrecognized transitional net benefit obligation |  | 28,606                           |   |  | 28,291  |   |  | 28,291  |  
|Amortization of unrecognized pension gain                        |  | (915                             | ) |  | (15,789 | ) |  | (21,123 | )
|Others                                                           |  |                                 |   |  | (8,513  | ) |  | 906     |  
|                                                                 |  |                                  |   |  |         |   |  |         |  
|Net periodic pension cost                                        |  | 224,021                          |   |  | 222,144 |   |  | 190,731 |  
|                                                                 |  |                                  |   |  |         |   |  |         |  

The actuarial assumptions underlying are as follows:



|                               |  |                                      |   |  |         |   |  |      |   |  |          |  
|------------------------------ |  | ------------------------------------ | - |  | ------- | - |  | ---- | - |  | -------- | -
|                               |  | For the year ended December 31, 2007 |  
|                               |  | UMC                                  |   |  | FORTUNE |   |  | UMO  |   |  | UMCJAPAN |  
|Discount rate                  |  | 3.50                                 | % |  | 3.00    | % |  | 3.50 | % |  | 2.00     | %
|Rate of salary increase        |  | 4.50                                 | % |  | 3.00    | % |  | 4.00 | % |  | 2.58     | %
|Expected return on plan assets |  | 2.75                                 | % |  | 3.00    | % |  | 2.75 | % |  | 5.00     | %



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UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



|                               |  |                                      |   |  |         |   |  |     |  |          |  
|------------------------------ |  | ------------------------------------ | - |  | ------- | - |  | --- |  | -------- | -
|                               |  | For the year ended December 31, 2008 |  
|                               |  | UMC                                  |   |  | FORTUNE |   |  | UMO |  | UMCJAPAN |  
|Discount rate                  |  | 2.75                                 | % |  | 2.50    | % |  |    |  | 2.00     | %
|Rate of salary increase        |  | 3.50                                 | % |  | 3.00    | % |  |    |  | 2.58     | %
|Expected return on plan assets |  | 1.50                                 | % |  | 2.50    | % |  |    |  | 3.84     | %



|                               |  |                                      |   |  |         |   |  |          |  
|------------------------------ |  | ------------------------------------ | - |  | ------- | - |  | -------- | -
|                               |  | For the year ended December 31, 2009 |  
|                               |  | UMC                                  |   |  | FORTUNE |   |  | UMCJAPAN |  
|Discount rate                  |  | 2.25                                 | % |  | 2.25    | % |  | 2.00     | %
|Rate of salary increase        |  | 4.00                                 | % |  | 3.00    | % |  | 2.55     | %
|Expected return on plan assets |  | 2.25                                 | % |  | 2.25    | % |  | 4.00     | %

Expected
future benefit payments are as follows:



|          |  |        
|--------- |  | -------
|Year      |  | Amount 
|          |  | NT$000
|2010      |  | 82,993 
|2011      |  | 52,588 
|2012      |  | 61,968 
|2013      |  | 80,533 
|2014      |  | 108,748
|2015-2019 |  | 803,024

The Company expects
to make pension fund contributions of NT$149 million in 2010.



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UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



20. CAPITAL STOCK



| | a. | UMC had 26,000 million common shares authorized to be issued, and 12,988 million shares were issued as of December 31, 2008, each at a par value of
NT$10.
| | -- | ----------------------------------------------------------------------------------------------------------------------------------------------------------



| | b. | UMC had issued a total of 230 million ADSs, which were traded on the NYSE as of December 31, 2008. The total number of common shares of UMC represented by all
issued ADSs was 1,148 million shares as of December 31, 2008. One ADS represents five common shares.
| | -- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | c. | As recommended by the board of directors, and approved by the stockholders at the meeting held on June 13, 2008, UMC issued 678 million new shares from
capitalization of retained earnings and additional paid-in capital that amounted to NT$6,776 million, of which NT$1,001 million was stock dividend, NT$1,146 million was employee bonus, and NT$4,629 million was additional paid-in capital.
| | -- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | d. | On September 10, 2008, UMC cancelled 349 million shares of treasury stock, which were repurchased during the period from May 18 to July 15, 2005 for
conversion of the convertible bonds into shares.
| | -- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | e. | On December 17, 2008, UMC cancelled 142 million shares and 214 million shares of treasury stock, which were repurchased during the periods from
October 4 to November 2, 2005 and May 25 to July 13, 2006, respectively, for the purpose of transferring to employees. In addition, on December 17, 2008, UMC cancelled 200 million shares of treasury stock, which were
repurchased during the period from August 28 to October 2, 2008 to maintain UMCs credit and stockholders equity.
| | -- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | f. | UMC had 26,000 million common shares authorized to be issued, and 12,988 million shares were issued as of December 31, 2009, each at a par value of
NT$10.
| | -- | ----------------------------------------------------------------------------------------------------------------------------------------------------------



| | g. | UMC had issued a total of 230 million ADSs, which were traded on the NYSE as of December 31, 2009. The total number of common shares of UMC represented by all
issued ADSs was 1,148 million shares as of December 31, 2009. One ADS represents five common shares.
| | -- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | h. | On December 14, 2009, UMC sold 78 million shares of treasury stock to employees, which were repurchased during the periods from January 7 to
February 16, 2009, for the purpose of transferring to employees.
| | -- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



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UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



21. EMPLOYEE STOCK OPTIONS

On September 11, 2002, October 8, 2003, September 30, 2004, December 22, 2005, October 9, 2007 and
May 12, 2009, the Company was authorized by the Securities and Futures Bureau of the Financial Supervisory Commission, Executive Yuan, to issue employee stock options with a total number of 1 billion, 150 million, 150 million,
350 million, 500 million, and 500 million units, respectively. Each unit entitles an optionee to subscribe to 1 share of the Companys common stock. Settlement upon the exercise of the options will be made through the issuance of
new shares by the Company. The exercise price of the options was set at the closing price of the Companys common stock on the date of grant. The contractual life is 6 years and an optionee may exercise the options in accordance with certain
schedules as prescribed by the plan after 2 years from the date of grant. Detailed information relevant to the employee stock options is disclosed as follows:



|                   |  |                                              |  |                                                  |  |                                                       |  |                            |      
|------------------ |  | -------------------------------------------- |  | ------------------------------------------------ |  | ----------------------------------------------------- |  | -------------------------- | -----
|Date of grant      |  | Total number ofoptions granted(in
thousands) |  | Total number ofoptions outstanding(in thousands) |  | Shares available tooption holders(in
thousands)(Note) |  | Exercise price(NTD) (Note)
|October 7, 2002    |  | 939,000                                      |  |                                                 |  |                                                      |  | $                          | 21.42
|January 3, 2003    |  | 61,000                                       |  |                                                 |  |                                                      |  | $                          | 24.15
|November 26, 2003  |  | 57,330                                       |  |                                                 |  |                                                      |  | $                          | 33.70
|March 23, 2004     |  | 33,330                                       |  | 12,778                                           |  | 8,908                                                 |  | $                          | 31.25
|July 1, 2004       |  | 56,590                                       |  | 29,886                                           |  | 20,836                                                |  | $                          | 28.24
|October 13, 2004   |  | 20,200                                       |  | 6,721                                            |  | 4,686                                                 |  | $                          | 24.28
|April 29, 2005     |  | 23,460                                       |  | 9,539                                            |  | 6,650                                                 |  | $                          | 22.37
|August 16, 2005    |  | 54,350                                       |  | 26,348                                           |  | 18,368                                                |  | $                          | 29.47
|September 29, 2005 |  | 51,990                                       |  | 35,504                                           |  | 24,752                                                |  | $                          | 26.89
|January 4, 2006    |  | 39,290                                       |  | 15,967                                           |  | 11,132                                                |  | $                          | 23.17
|May 22, 2006       |  | 42,058                                       |  | 22,750                                           |  | 15,861                                                |  | $                          | 25.19
|August 24, 2006    |  | 28,140                                       |  | 12,895                                           |  | 8,990                                                 |  | $                          | 24.09
|December 13, 2007  |  | 500,000                                      |  | 399,719                                          |  | 399,719                                               |  | $                          | 18.03
|June 19, 2009      |  | 300,000                                      |  | 289,664                                          |  | 289,664                                               |  | $                          | 10.40
|                   |  |                                              |  |                                                  |  |                                                       |  |                            |      
|Total              |  | 2,206,738                                    |  | 861,771                                          |  | 809,566                                               |  |                            |      
|                   |  |                                              |  |                                                  |  |                                                       |  |                            |      



|     |  |   |  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
|---- |  | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|Note |  | : |  | The employee stock options granted prior to August 7, 2007, the effective date of capital reduction, were adjusted in accordance with the capital reduction rate. Each option
unit entitles an optionee to subscribe for about 0.7 share of the Companys common stock. The exercise price of the options is also adjusted according to capital reduction rate. Each stock option unit granted after August 7, 2007 remains
to be subscribed for 1 share of the Companys common stock.



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UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



| | a. | A summary of the Companys stock option plan, and related information for the years ended December 31, 2008 and 2009, is as follows:
| | -- | ------------------------------------------------------------------------------------------------------------------------------------



|                                                                 |  |                                  |           |      |                                              |           |   |                                             |   |                      |  |   |                                              |   |  |                                             |   |  |   |      
|---------------------------------------------------------------- |  | -------------------------------- | --------- | ---- | -------------------------------------------- | --------- | - | ------------------------------------------- | - | -------------------- |  | - | -------------------------------------------- | - |  | ------------------------------------------- | - |  | - | -----
|                                                                 |  | For the years ended December 31,
|                                                                 |  | 2008                             |           | 2009
|                                                                 |  | Options(inthousands)             |           |      | Sharesavailable tooptionholders(inthousands) |           |   | Weighted-averageExercisePrice pershare(NTD) |   | Options(inthousands) |  |   | Sharesavailable tooptionholders(inthousands) |   |  | Weighted-averageExercisePrice
pershare(NTD)
|Outstanding at beginning of period                               |  |                                  | 1,287,407 |      |                                              | 1,048,832 |   |                                             | $ | 21.06                |  |   | 709,484                                      |   |  | 627,086                                     |   |  | $ | 20.79
|Granted                                                          |  |                                  |          |      |                                              |          |   |                                             | $ |                     |  |   | 300,000                                      |   |  | 300,000                                     |   |  | $ | 10.40
|Forfeited                                                        |  |                                  | (186,196  | )    |                                              | (148,647  | ) |                                             | $ | 21.54                |  |   | (76,492                                      | ) |  | (67,867                                     | ) |  | $ | 19.43
|Expired                                                          |  |                                  | (391,727  | )    |                                              | (273,099  | ) |                                             | $ | 21.42                |  |   | (71,221                                      | ) |  | (49,653                                     | ) |  | $ | 28.41
|                                                                 |  |                                  |           |      |                                              |           |   |                                             |   |                      |  |   |                                              |   |  |                                             |   |  |   |      
|Outstanding at end of period                                     |  |                                  | 709,484   |      |                                              | 627,086   |   |                                             | $ | 20.79                |  |   | 861,771                                      |   |  | 809,566                                     |   |  | $ | 16.59
|                                                                 |  |                                  |           |      |                                              |           |   |                                             |   |                      |  |   |                                              |   |  |                                             |   |  |   |      
|Exercisable at end of period                                     |  |                                  | 217,154   |      |                                              | 151,393   |   |                                             | $ | 27.62                |  |   | 355,715                                      |   |  | 308,157                                     |   |  | $ | 21.19
|                                                                 |  |                                  |           |      |                                              |           |   |                                             |   |                      |  |   |                                              |   |  |                                             |   |  |   |      
|                                                                 |  |                                  |           |      |                                              |          
|Weighted-average fair value of options granted during the period |  | $                                |          |      |                                              |           |   |                                             |   |                      |  | $ | 2.84                                         |   |  |                                             |   |  |   |      



| | b. | The information on the Companys outstanding stock options as of December 31, 2009, is as follows:
| | -- | --------------------------------------------------------------------------------------------------



|                   |  |                            |              |                           |         |                                                |         |                                        |      |                                             |   |                      |  |                                                |  |                                             |  |   |      
|------------------ |  | -------------------------- | ------------ | ------------------------- | ------- | ---------------------------------------------- | ------- | -------------------------------------- | ---- | ------------------------------------------- | - | -------------------- |  | ---------------------------------------------- |  | ------------------------------------------- |  | - | -----
|                   |  |                            |              | Outstanding Stock Options |         | Exercisable Stock Options                     
|Authorization
Date |  | Range ofExercisePrice(NTD) |              | Options(inthousands)      |         | Sharesavailable tooption holders(in thousands) |         | Weighted-averageExpectedRemainingYears |      | Weighted-averageExercisePrice pershare(NTD) |   | Options(inthousands) |  | Shares availableto optionholders (inthousands) |  | Weighted-averageExercisePrice
pershare(NTD)
|2003.10.08         |  | $                          | 28.24~$31.25 |                           | 42,664  |                                                | 29,744  |                                        | 0.41 |                                             | $ | 29.14                |  | 42,664                                         |  | 29,744                                      |  | $ | 29.14
|2004.09.30         |  | $                          | 22.37~$29.47 |                           | 78,112  |                                                | 54,456  |                                        | 1.57 |                                             | $ | 26.98                |  | 77,320                                         |  | 53,905                                      |  | $ | 26.96
|2005.12.22         |  | $                          | 23.17~$25.19 |                           | 51,612  |                                                | 35,983  |                                        | 2.33 |                                             | $ | 24.29                |  | 37,060                                         |  | 25,837                                      |  | $ | 24.31
|2007.10.09         |  | $                          | 18.03        |                           | 399,719 |                                                | 399,719 |                                        | 3.95 |                                             | $ | 18.03                |  | 198,671                                        |  | 198,671                                     |  | $ | 18.03
|2009.05.12         |  | $                          | 10.40        |                           | 289,664 |                                                | 289,664 |                                        | 5.46 |                                             | $ | 10.40                |  |                                               |  |                                            |  | $ |     
|                   |  |                            |              |                           |         |                                                |         |                                        |      |                                             |   |                      |  |                                                |  |                                             |  |   |      
|                   |  |                            |              |                           | 861,771 |                                                | 809,566 |                                        | 4.13 |                                             | $ | 16.59                |  | 355,715                                        |  | 308,157                                     |  | $ | 21.19
|                   |  |                            |              |                           |         |                                                |         |                                        |      |                                             |   |                      |  |                                                |  |                                             |  |   |      



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UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



| | c. | The Company used the intrinsic value method to recognize compensation costs for its employee stock options issued between January 1, 2004 and December 31,
2007. Compensation costs for these options were nil for the years ended December 31, 2007, 2008 and 2009. For options granted on or after January 1, 2008, the Company recognized compensation cost of nil and NT$136 million using the fair
value method in accordance with ROC SFAS 39 for the years ended December 31, 2008 and 2009, respectively.
| | -- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

The Company granted options prior to adopting ROC SFAS 39. Pro forma information on net income (loss) and earnings (losses) per share
using the fair value method is as follows:



|                                   |  |                                      |             |   |                            |   |             |  
|---------------------------------- |  | ------------------------------------ | ----------- | - | -------------------------- | - | ----------- | -
|                                   |  | For the year ended December 31, 2007 |            
|                                   |  | Basic earnings per share             |             |   | Diluted earnings per share |  
|                                   |  | NT$000                              |             |   | NT$000                    |  
|Net income                         |  |                                      | 16,961,762  |   |                            |   | 16,961,414  |  
|Earnings per share (NTD)           |  | $                                    | 1.03        |   |                            | $ | 1.00        |  
|Pro forma net income               |  |                                      | 16,544,506  |   |                            |   | 16,544,158  |  
|Pro forma earnings per share (NTD) |  | $                                    | 1.00        |   |                            | $ | 0.98        |  
|                                   | 
|                                   |  | For the year ended December 31, 2008 |            
|                                   |  | Basic losses per share               |             |   | Diluted losses per share   |  
|                                   |  | NT$000                              |             |   | NT$000                    |  
|Net loss                           |  |                                      | (22,320,075 | ) |                            |   | (22,449,985 | )
|Losses per share (NTD)             |  | $                                    | (1.70       | ) |                            | $ | (1.70       | )
|Pro forma net loss                 |  |                                      | (23,245,013 | ) |                            |   | (23,374,923 | )
|Pro forma losses per share (NTD)   |  | $                                    | (1.77       | ) |                            | $ | (1.78       | )
|                                   | 
|                                   |  | For the year ended December 31, 2009 |            
|                                   |  | Basic earnings per share             |             |   | Diluted earnings per share |  
|                                   |  | NT$000                              |             |   | NT$000                    |  
|Net income                         |  |                                      | 3,874,028   |   |                            |   | 3,874,028   |  
|Earnings per share (NTD)           |  | $                                    | 0.31        |   |                            | $ | 0.30        |  
|Pro forma net income               |  |                                      | 3,064,107   |   |                            |   | 3,064,107   |  
|Pro forma earnings per share (NTD) |  | $                                    | 0.24        |   |                            | $ | 0.24        |  

The fair value of the
options outstanding as of December 31, 2008 and 2009 were estimated at the date of grant using the Black-Scholes options pricing model with the following weighted-average assumptions. The factors before and after the adoption of ROC SFAS 39 to
account for share-based payment were as follows:



|                                                                              |  |              |   |  |                 |  
|----------------------------------------------------------------------------- |  | ------------ | - |  | --------------- | -
|Factors                                                                       |  | Before       |   |  | After           |  
|Expected dividend yields                                                      |  | 1.37%~1.71   | % |  | 1.98            | %
|Volatility factors of the expected market price of the Companys common stock |  | 36.29%~49.10 | % |  | 39.67%~41.05    | %
|Risk-free interest rate                                                       |  | 1.85%~2.85   | % |  | 1.01            | %
|Weighted-average expected life                                                |  | 4~5 years    |   |  | 3.16~5.03 years |  



F-48



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##### Table of Contents

UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



22. TREASURY STOCK



| | a. | Changes in treasury stock during the years ended December 31, 2007, 2008 and 2009 are as follows:
| | -- | -------------------------------------------------------------------------------------------------

For the year ended December 31, 2007

(In thousands of shares)



|                                                    |  |                      |  |          |  |          |  |                       
|--------------------------------------------------- |  | -------------------- |  | -------- |  | -------- |  | ----------------------
|Purpose                                             |  | As ofJanuary 1, 2007 |  | Increase |  | Decrease |  | As
ofDecember 31, 2007
|For transfer to employees                           |  | 842,067              |  |         |  | 486,351  |  | 355,716               
|For conversion of the convertible bonds into shares |  | 500,000              |  |         |  | 151,417  |  | 348,583               
|                                                    |  |                      |  |          |  |          |  |                       
|Total shares                                        |  | 1,342,067            |  |         |  | 637,768  |  | 704,299               
|                                                    |  |                      |  |          |  |          |  |                       

For the year ended December 31, 2008

(In thousands of shares)



|                                                    |  |                      |  |          |  |          |  |                       
|--------------------------------------------------- |  | -------------------- |  | -------- |  | -------- |  | ----------------------
|Purpose                                             |  | As ofJanuary 1, 2008 |  | Increase |  | Decrease |  | As
ofDecember 31, 2008
|For transfer to employees                           |  | 355,716              |  |         |  | 355,716  |  |                      
|For conversion of the convertible bonds into shares |  | 348,583              |  |         |  | 348,583  |  |                      
|To maintain UMCs credit and stockholders equity   |  |                     |  | 200,000  |  | 200,000  |  |                      
|                                                    |  |                      |  |          |  |          |  |                       
|Total shares                                        |  | 704,299              |  | 200,000  |  | 904,299  |  |                      
|                                                    |  |                      |  |          |  |          |  |                       

For the year ended December 31, 2009

(In thousands of shares)



|                          |  |                      |  |          |  |          |  |                       
|------------------------- |  | -------------------- |  | -------- |  | -------- |  | ----------------------
|Purpose                   |  | As ofJanuary 1, 2009 |  | Increase |  | Decrease |  | As
ofDecember 31, 2009
|For transfer to employees |  |                     |  | 300,000  |  | 78,091   |  | 221,909               
|                          |  |                      |  |          |  |          |  |                       
|Total shares              |  |                     |  | 300,000  |  | 78,091   |  | 221,909               
|                          |  |                      |  |          |  |          |  |                       



| | b. | According to the Securities and Exchange Law of the R.O.C., the total shares of treasury stock shall not exceed 10% of UMCs issued stock, and the total purchase
amount shall not exceed the sum of the retained earnings, additional paid-in capital  premiums, and realized additional paid-in capital. As such, the maximum number of shares of treasury stock that UMC could hold as of December 31, 2008
and 2009, were 1,299 million shares, while the ceiling amount was NT$44,203 million and NT$54,852 million, respectively.
| | -- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



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UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



| | c. | In compliance with Securities and Exchange Law of the R.O.C., treasury stock should not be pledged, nor should it be entitled to voting rights or receiving dividends.
Stock held by subsidiaries is treated as treasury stock. These subsidiaries have the same rights as other stockholders except for subscription to new stock issuance and voting rights.
| | -- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | d. | As of December 31, 2008, UMCs subsidiary, FORTUNE VENTURE CAPITAL CORP., held 16 million shares of UMCs stock, with a book value of NT$7.43 per
share. The closing price on December 31, 2008 was NT$7.43.
| | -- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

As of December 31, 2009, UMCs
subsidiary, FORTUNE VENTURE CAPITAL CORP., held 16 million shares of UMCs stock, with a book value of NT$17.20 per share. The closing price on December 31, 2009 was NT$17.20.



| | e. | On February 2, 2010, the board of directors approved the repurchase of 300 million shares of treasury stock during the period from February 3, 2010 to
April 2, 2010 for transferring to employees as part of the 14th treasury stock buy back plan. As of the date of the Report of Independent Auditors, UMC has completed the share buy- back program.
| | -- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

23. RETAINED EARNINGS AND DIVIDEND POLICIES

According to UMCs Articles of Incorporation, current years earnings, if any, shall be distributed in the following order:



| | a. | Payment of all taxes and dues;
| | -- | ------------------------------



| | b. | Offset prior years operation losses;
| | -- | -------------------------------------



| | c. | Set aside 10% of the remaining amount after deducting items (a) and (b) as a legal reserve;
| | -- | -------------------------------------------------------------------------------------------



| | d. | Set aside 0.1% of the remaining amount after deducting items (a), (b), and (c) as directors and supervisors remuneration; and
| | -- | -------------------------------------------------------------------------------------------------------------------------------



| | e. | After deducting items (a), (b), and (c) above from the current years earnings, no less than 5% of the remaining amount together with the prior years
unappropriated earnings is to be allocated as employee bonus, which will be settled through issuance of new shares of UMC, or cash. Employees of UMCs subsidiaries, meeting certain requirements determined by the board of directors, are also
eligible for the employee bonus.
| | -- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | f. | The distribution of the remaining portion, if any, will be recommended by the board of directors and resolved in the stockholders meeting.
| | -- | -------------------------------------------------------------------------------------------------------------------------------------------



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UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



The policy for dividend distribution should reflect factors such as the current and future investment
environment, fund requirements, domestic and international competition and capital budgets; as well as the benefit of stockholders, stock dividend equilibrium, and long-term financial planning. The board of directors shall make the distribution
proposal annually and present it at the stockholders meeting. UMCs Articles of Incorporation further provide that no more than 80% of the dividends to stockholders, if any, must be paid in the form of stock dividends. Accordingly, at
least 20% of the dividends must be paid in the form of cash.

During the years ended December 31, 2008 and 2009, the amounts of the
employee bonus and remunerations to directors and supervisors were estimated, in accordance with ARDF Interpretation 96-052. The board of directors estimated the amount by taking consideration of the Companys Articles of Incorporation,
government regulations and industry average. Estimated amount of employee bonus and remunerations paid to directors and supervisors are charged to current income. If the board modified the estimates significantly in the subsequent periods, the
Company will recognize the change as an adjustment to current income. Moreover, if the amounts were modified by the stockholders meeting in the following year, the adjustment will be regarded as a change in accounting estimate and will be
reflected in the consolidated statement of income in the following year. Upon stockholders approval of the employee stock bonus, the distribution amount is determined by dividing the total approved bonus amount with the closing market price of
the Companys stock one day prior to the approved date. Information about appropriations of the bonus to employees and directors can be obtained from the Market Observation Post System on the website of the TSE.

The appropriation and compensation of 2009 unappropriated retained earnings (accumulated deficit), which was recommended by the board of directors but
not approved by stockholders yet, can be obtained from the Market Observation Post System on the website of the TSE.

On
June 10, 2009, the stockholders meetings approved to offset UMCs 2008 deficit of NT$26,748 million: by transferring NT$19,712 million from the legal reserve and NT$7,036 million from the additional paid-in capital to unappropriated
earnings. The distributions of retained earnings for 2007 was approved through the stockholders meeting held on June 13, 2008. The details of distribution are as follows:



|                                                                  |  |      |               
|----------------------------------------------------------------- |  | ---- | --------------
|                                                                  |  | 2007
|Cash Dividend                                                     |  | NT$  | 0.75 per share
|Stock Dividend                                                    |  | NT$  | 0.08 per share
|Employee bonus  Cash (in NT thousand dollars)                    |  |      | 286,541       
|Employee bonus  Stock (in NT thousand dollars)                   |  |      | 1,146,166     
|Directors and Supervisors remuneration (in NT thousand dollars) |  |      | 11,939        



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UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



Pursuant to Article 41 of the Securities and Exchange Law of the R.O.C., a special reserve is set aside
from the current net income and prior unappropriated earnings with an amount equal to the amount of items that is accounted for as deductions to stockholders equity, such as unrealized losses on financial instruments and cumulative translation
adjustments. When the deductions to stockholders equity are reversed, the set-aside special reserve can be distributed.

24.
OPERATING COSTS AND EXPENSES

The Companys personnel, depreciation, and amortization expenses are summarized as follows:



|                           |  |                                  |  |                   |  |            |  |                |  |                   |  |            |  |                |  |                   |  |           
|-------------------------- |  | -------------------------------- |  | ----------------- |  | ---------- |  | -------------- |  | ----------------- |  | ---------- |  | -------------- |  | ----------------- |  | ----------
|                           |  | For the years ended December 31,
|                           |  | 2007                             |  | 2008              |  | 2009      
|                           |  | Operatingcosts                   |  | Operatingexpenses |  | Total      |  | Operatingcosts |  | Operatingexpenses |  | Total      |  | Operatingcosts |  | Operatingexpenses |  | Total     
|                           |  | NT$000                          |  | NT$000           |  | NT$000    |  | NT$000        |  | NT$000           |  | NT$000    |  | NT$000        |  | NT$000           |  | NT$000   
|                           |  |                                  |  |                   |  |            |  |                | 
|Personnel expenses         |  |                                  |  |                   |  |            |  |                |  |                   |  |            |  |                |  |                   |  |           
|Salaries                   |  | 11,168,190                       |  | 4,418,228         |  | 15,586,418 |  | 8,982,685      |  | 3,514,894         |  | 12,497,579 |  | 9,838,712      |  | 3,844,526         |  | 13,683,238
|Labor and health insurance |  | 552,236                          |  | 205,800           |  | 758,036    |  | 533,776        |  | 208,522           |  | 742,298    |  | 518,137        |  | 187,090           |  | 705,227   
|Pension                    |  | 556,421                          |  | 193,574           |  | 749,995    |  | 543,357        |  | 195,083           |  | 738,440    |  | 534,531        |  | 176,309           |  | 710,840   
|Other personnel expenses   |  | 122,884                          |  | 86,776            |  | 209,660    |  | 202,502        |  | 106,008           |  | 308,510    |  | 93,581         |  | 37,150            |  | 130,731   
|Depreciation               |  | 35,665,112                       |  | 2,083,539         |  | 37,748,651 |  | 34,696,769     |  | 2,407,371         |  | 37,104,140 |  | 31,199,053     |  | 2,273,178         |  | 33,472,231
|Amortization               |  | 68,854                           |  | 1,314,890         |  | 1,383,744  |  | 52,172         |  | 1,262,713         |  | 1,314,885  |  | 49,217         |  | 650,324           |  | 699,541   



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UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



25. INCOME TAX



| | (1) | Income tax expense consisted of :
| | --- | ---------------------------------



|                   |  |                                  |   |  |         |   |  |         |  
|------------------ |  | -------------------------------- | - |  | ------- | - |  | ------- | -
|                   |  | For the years ended December 31, |  
|                   |  | 2007                             |   |  | 2008    |   |  | 2009    |  
|                   |  | NT$000                          |   |  | NT$000 |   |  | NT$000 |  
|Current            |  |                                  |   |  |         |   |  |         |  
|Domestic           |  | 1,056,457                        |   |  | 667,728 |   |  | 135,626 |  
|Foreign            |  | 106,573                          |   |  | 58,856  |   |  | 53,573  |  
|                   |  |                                  |   |  |         |   |  |         |  
|Subtotal           |  | 1,163,030                        |   |  | 726,584 |   |  | 189,199 |  
|Deferred           |  |                                  |   |  |         |   |  |         |  
|Domestic           |  | 1,681,797                        |   |  | 281,831 |   |  | 469,608 |  
|Foreign            |  | (34,953                          | ) |  | (11,494 | ) |  | (7,739  | )
|                   |  |                                  |   |  |         |   |  |         |  
|Subtotal           |  | 1,646,844                        |   |  | 270,337 |   |  | 461,869 |  
|                   |  |                                  |   |  |         |   |  |         |  
|Income tax expense |  | 2,809,874                        |   |  | 996,921 |   |  | 651,068 |  
|                   |  |                                  |   |  |         |   |  |         |  



| | (2) | Reconciliation between the income tax expense and the income tax calculated on pre-tax financial statement income (loss) based on the statutory tax rate is as follows:
| | --- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------



|                                                                 |  |                                  |   |  |            |   |  |            |  
|---------------------------------------------------------------- |  | -------------------------------- | - |  | ---------- | - |  | ---------- | -
|                                                                 |  | For the years ended December 31, |  
|                                                                 |  | 2007                             |   |  | 2008       |   |  | 2009       |  
|                                                                 |  | NT$000                          |   |  | NT$000    |   |  | NT$000    |  
|Income tax on pre-tax income (loss) at statutory tax rate        |  | 5,323,188                        |   |  | (6,280,440 | ) |  | (576,961   | )
|Permanent and temporary differences                              |  |                                  |   |  |            |   |  |            |  
|Investment loss                                                  |  | 210,215                          |   |  | 5,761,967  |   |  | (633,731   | )
|Gain on disposal of investments                                  |  | (2,985,360                       | ) |  | (797,159   | ) |  | (493,075   | )
|Others                                                           |  | (2,397,516                       | ) |  | 1,490,514  |   |  | 282,177    |  
|                                                                 |  |                                  |   |  |            |   |  |            |  
|Subtotal                                                         |  | (5,172,661                       | ) |  | 6,455,322  |   |  | (844,629   | )
|Change in investment tax credit                                  |  | 1,457,098                        |   |  | (748,496   | ) |  | 3,626,357  |  
|Change in loss carry-forward                                     |  | 909,702                          |   |  | (592,169   | ) |  | (833,983   | )
|Change in valuation allowance against deferred income tax assets |  |                                  |   |  |            |   |  |            |  
|Investment tax credit                                            |  | (530,601                         | ) |  | 1,706,802  |   |  | (2,996,460 | )
|Loss carry-forward                                               |  | 33,754                           |   |  | 592,169    |   |  | 833,983    |  
|Others                                                           |  | (13,452                          | ) |  | (78,073    | ) |  | 1,017,481  |  
|                                                                 |  |                                  |   |  |            |   |  |            |  
|Subtotal                                                         |  | (510,299                         | ) |  | 2,220,898  |   |  | (1,144,996 | )
|Change in tax rate                                               |  | 237                              |   |  |           |   |  | 322,857    |  
|Estimated 10% income tax on unappropriated earnings              |  | 9                                |   |  | 139        |   |  |           |  
|Adjustment of prior years tax expense                           |  | (19,620                          | ) |  | (9,499     | ) |  | (79        | )
|Income tax on interest revenue separately taxed                  |  | 3,239                            |   |  | 14,035     |   |  |           |  
|Income basic tax                                                 |  | 818,262                          |   |  | 32,124     |   |  | 126,775    |  
|Others                                                           |  | 719                              |   |  | (94,993    | ) |  | (24,273    | )
|                                                                 |  |                                  |   |  |            |   |  |            |  
|Income tax expense                                               |  | 2,809,874                        |   |  | 996,921    |   |  | 651,068    |  
|                                                                 |  |                                  |   |  |            |   |  |            |  



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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



| | (3) | Significant components of deferred income tax assets and liabilities are as follows:
| | --- | ------------------------------------------------------------------------------------



|                                                                              |  |                    |   |  |             |  
|----------------------------------------------------------------------------- |  | ------------------ | - |  | ----------- | -
|                                                                              |  | As of December 31, |  
|                                                                              |  | 2008               |   |  | 2009        |  
|                                                                              |  | NT$000            |   |  | NT$000     |  
|Deferred income tax assets                                                    |  |                    |   |  |             |  
|Investment tax credit                                                         |  | 13,674,858         |   |  | 9,987,957   |  
|Depreciation                                                                  |  | 11,087             |   |  | 1,029,536   |  
|Loss carry-forward                                                            |  | 3,544,145          |   |  | 3,907,416   |  
|Pension                                                                       |  | 839,683            |   |  | 656,412     |  
|Allowance on sales returns and discounts                                      |  | 166,513            |   |  | 117,371     |  
|Allowance for loss on decline in market value and obsolescence of inventories |  | 501,885            |   |  | 223,656     |  
|Others                                                                        |  | 717,080            |   |  | 379,023     |  
|                                                                              |  |                    |   |  |             |  
|Total deferred income tax assets                                              |  | 19,455,251         |   |  | 16,301,371  |  
|Valuation allowance                                                           |  | (14,275,819        | ) |  | (12,504,629 | )
|                                                                              |  |                    |   |  |             |  
|Net deferred income tax assets                                                |  | 5,179,432          |   |  | 3,796,742   |  
|                                                                              |  |                    |   |  |             |  
|                                                                              |  |                   
|Deferred income tax liabilities                                               |  |                    |   |  |             |  
|Unrealized exchange gain                                                      |  | (12,782            | ) |  | (49,481     | )
|Depreciation                                                                  |  | (860,262           | ) |  | (33,324     | )
|Others                                                                        |  | (100,035           | ) |  | (38,188     | )
|                                                                              |  |                    |   |  |             |  
|Total deferred income tax liabilities                                         |  | (973,079           | ) |  | (120,993    | )
|                                                                              |  |                    |   |  |             |  
|Total net deferred income tax assets                                          |  | 4,206,353          |   |  | 3,675,749   |  
|                                                                              |  |                    |   |  |             |  
|                                                                              |  |                   
|Deferred income tax assets-current                                            |  | 8,929,423          |   |  | 5,014,780   |  
|Deferred income tax liabilities-current                                       |  | (99,215            | ) |  | (77,918     | )
|Valuation allowance                                                           |  | (8,168,034         | ) |  | (4,403,639  | )
|                                                                              |  |                    |   |  |             |  
|Net                                                                           |  | 662,174            |   |  | 533,223     |  
|                                                                              |  |                    |   |  |             |  
|                                                                              |  |                   
|Deferred income tax assets-noncurrent                                         |  | 10,525,828         |   |  | 11,286,591  |  
|Deferred income tax liabilities-noncurrent                                    |  | (873,864           | ) |  | (43,075     | )
|Valuation allowance                                                           |  | (6,107,785         | ) |  | (8,100,990  | )
|                                                                              |  |                    |   |  |             |  
|Net                                                                           |  | 3,544,179          |   |  | 3,142,526   |  
|                                                                              |  |                    |   |  |             |  
|Total net deferred income tax assets                                          |  | 4,206,353          |   |  | 3,675,749   |  
|                                                                              |  |                    |   |  |             |  



| | (4) | UMCs income tax returns for all the fiscal years up to 2007 have been assessed and approved by the R.O.C. Tax Authority.
| | --- | -------------------------------------------------------------------------------------------------------------------------



| | (5) | UMC was granted several four or five-year income tax exemption periods with respect to income derived from the expansion of operations. The income tax exemption periods
will expire on December 31, 2015.
| | --- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



| | (6) | The Company earns investment tax credits for the amount invested in production equipment, research and development, employee training, and investment in high technology
industry and venture capital.
| | --- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

As of December 31, 2009, the Companys unused investment tax credits
were as follows:



|                |  |                               |  |                                         
|--------------- |  | ----------------------------- |  | ----------------------------------------
|Expiration Year |  | Investment tax credits earned |  | Balance of unusedinvestment tax 
credits
|                |  | NT$000                       |  | NT$000                                 
|2009            |  | 2,366,962                     |  | 2,366,962                               
|2010            |  | 2,179,032                     |  | 2,179,032                               
|2011            |  | 2,090,491                     |  | 2,090,491                               
|2012            |  | 1,842,320                     |  | 1,842,320                               
|2013            |  | 1,509,152                     |  | 1,509,152                               
|                |  |                               |  |                                         
|Total           |  | 9,987,957                     |  | 9,987,957                               
|                |  |                               |  |                                         



| | (7) | As of December 31, 2009, the unutilized accumulated losses for the Company were as follows:
| | --- | -------------------------------------------------------------------------------------------



|                |  |                  |  |                            
|--------------- |  | ---------------- |  | ---------------------------
|Expiration Year |  | Accumulated loss |  | Unutilized accumulated loss
|                |  | NT$000          |  | NT$000                    
|2009            |  | 261,225          |  | 261,225                    
|2010            |  |                 |  |                           
|2011            |  |                 |  |                           
|2012            |  | 4,315,301        |  | 4,315,301                  
|2013            |  | 1,223,123        |  | 1,223,123                  
|2014            |  | 245,194          |  | 245,194                    
|2015            |  | 1,634,844        |  | 1,634,844                  
|2016            |  | 2,062,518        |  | 2,062,518                  
|2017            |  |                 |  |                           
|2018            |  | 74,684           |  | 74,684                     
|2019            |  | 10,362           |  | 10,362                     
|                |  |                  |  |                            
|Total           |  | 9,827,251        |  | 9,827,251                  
|                |  |                  |  |                            



| | (8) | The balance of UMCs imputation credit amounts as of December 31, 2008 and 2009 were NT$205 million and NT$1,100 million, respectively. The actual creditable
ratio for 2008 and the expected creditable ratio for 2009 were 0% and 6.55%, respectively.
| | --- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | (9) | UMCs earnings generated in the year ended December 31, 1997 and prior years have been fully appropriated.
| | --- | ----------------------------------------------------------------------------------------------------------



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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



| | (10) | According to the newly revised Income Tax Law of the R.O.C. on May 27, 2009, the statutory tax rate of the Company is changed from 25% to 20% effective
January 1, 2010.
| | ---- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------

26. EARNINGS (LOSSES) PER SHARE

For the year ended December 31, 2009, there were employee stock options outstanding and the Company calculated the effect of employee bonus in
accordance with the AR DF Interpretation No. 97-169, Impacts of Employee Stock Bonus on Earnings Per Share(ARDF Interpretation 97-169). There were zero coupon convertible bonds and employee stock options outstanding during the year
ended December 31, 2008. Therefore, in consideration of such complex structure, the calculated basic and diluted earnings (losses) per share for the years ended December 31, 2007, 2008 and 2009, are disclosed as follows:



|                                                                             |  |                                  |   |  |             |   |  |           
|---------------------------------------------------------------------------- |  | -------------------------------- | - |  | ----------- | - |  | ----------
|                                                                             |  | For the years ended December 31,
|(shares expressed in thousands)                                              |  | 2007                             |   |  | 2008        |   |  | 2009      
|                                                                             |  | NT$000                          |   |  | NT$000     |   |  | NT$000   
|Net income (loss)                                                            |  | 16,961,762                       |   |  | (22,320,075 | ) |  | 3,874,028 
|Effect of dilution:                                                          |  |                                  |   |  |             |   |  |           
|Employee stock options                                                       |  |                                 |   |  |            |   |  |          
|Employee bonus                                                               |  |                                 |   |  |            |   |  |          
|Convertible bonds                                                            |  | (348                             | ) |  | (129,910    | ) |  |          
|                                                                             |  |                                  |   |  |             |   |  |           
|Adjusted net income (loss) assuming dilution                                 |  | 16,961,414                       |   |  | (22,449,985 | ) |  | 3,874,028 
|                                                                             |  |                                  |   |  |             |   |  |           
|Weighted average shares outstanding                                          |  | 16,464,412                       |   |  | 13,110,984  |   |  | 12,699,072
|Effect of dilution:                                                          |  |                                  |   |  |             |   |  |           
|Employee stock options                                                       |  | 6,317                            |   |  |            |   |  | 31,271    
|Employee bonus                                                               |  |                                 |   |  |            |   |  | 56,105    
|Convertible bonds                                                            |  | 472,675                          |   |  | 59,407      |   |  |          
|                                                                             |  |                                  |   |  |             |   |  |           
|Adjusted weighted average shares outstanding assuming dilution               |  | 16,943,404                       |   |  | 13,170,391  |   |  | 12,786,448
|                                                                             |  |                                  |   |  |             |   |  |           
|Retroactively adjusted weighted average shares outstanding                   |  | 16,464,412                       |   |  | 13,110,984  |   |  | 12,699,072
|                                                                             |  |                                  |   |  |             |   |  |           
|Retroactively adjusted weighted average shares outstanding assuming dilution |  | 16,943,404                       |   |  | 13,170,391  |   |  | 12,786,448
|                                                                             |  |                                  |   |  |             |   |  |           
|Earnings (losses) per share-basic (in dollars)                               |  | 1.03                             |   |  | (1.70       | ) |  | 0.31      
|                                                                             |  |                                  |   |  |             |   |  |           
|Earnings (losses) per share-diluted (in dollars)                             |  | 1.00                             |   |  | (1.70       | ) |  | 0.30      
|                                                                             |  |                                  |   |  |             |   |  |           



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UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



The employee stock options were not dilutive when calculating the diluted losses per share for the year
ended December 31, 2008; therefore, they were not included in the diluted losses per share calculation.

27. RELATED PARTY
TRANSACTIONS



| | (1) | Name and Relationship of Related Parties
| | --- | ----------------------------------------



|                                                                                 |  |                                                          
|-------------------------------------------------------------------------------- |  | ---------------------------------------------------------
|Name of related parties                                                          |  | Relationship with the Company                            
|UNITECH CAPITAL INC.                                                             |  | Equity Investee                                          
|MEGA MISSION LIMITED PARTNERSHIP                                                 |  | Equity Investee                                          
|MTIC HOLDINGS PTE. LTD.                                                          |  | Equity Investee                                          
|UNIMICRON HOLDING LIMITED                                                        |  | Equity Investee                                          
|HSUN CHIEH INVESTMENT CO., LTD.                                                  |  | Equity Investee                                          
|AMIC TECHNOLOGY CORP.                                                            |  | Equity Investee                                          
|PACIFIC VENTURE CAPITAL CO., LTD.                                                |  | Equity Investee                                          
|XGI TECHNOLOGY INC.                                                              |  | Equity Investee                                          
|UNITED MICRODISPLAY OPTRONICS CORP.( has filed for liquidation on June 26, 2009) |  | Equity Investee                                          
|NEXPOWER TECHNOLOGY CORP.                                                        |  | Equity Investee                                          
|SILICON INTEGRATED SYSTEMS CORP.(SILICON)                                        |  | The Companys director                                   
|CRYSTAL MEDIA INC.                                                               |  | Subsidiarys equity investee                             
|MOBILE DEVICES INC.
WALTOP INTERNATIONAL CORP.                                   |  | Subsidiarys equity investee
Subsidiarys equity investee
|ALLIANCE OPTOTEK CORP.                                                           |  | Subsidiarys equity investee                             
|SMEDIA TECHNOLOGY CORP. (Merged into ITE TECH. INC. since December 31, 2008)     |  | Subsidiarys equity investee                             
|All members of directors, supervisors and key managers                           |  | The Companys key management personnel                   



| | (2) | Significant Related Party Transactions
| | --- | --------------------------------------



| | a. | Operating revenues
| | -- | ------------------



|        |  |                                  |  |            |  |           |  |            |  |           |  |           
|------- |  | -------------------------------- |  | ---------- |  | --------- |  | ---------- |  | --------- |  | ----------
|        |  | For the years ended December 31,
|        |  | 2007                             |  | 2008       |  | 2009     
|        |  | Amount                           |  | Percentage |  | Amount    |  | Percentage |  | Amount    |  | Percentage
|        |  | NT$000                          |  |            |  | NT$000   |  |            |  | NT$000   |  |           
|SILICON |  | 1,596,040                        |  | 1          |  | 1,031,393 |  | 1          |  | 1,057,278 |  | 1         
|Others  |  | 523,721                          |  | 1          |  | 543,219   |  | 1          |  | 128,375   |  |          
|        |  |                                  |  |            |  |           |  |            |  |           |  |           
|Total   |  | 2,119,761                        |  | 2          |  | 1,574,612 |  | 2          |  | 1,185,653 |  | 1         
|        |  |                                  |  |            |  |           |  |            |  |           |  |           



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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



The sales price to the above related parties was determined through mutual agreement
based on the market conditions. The collection period for overseas sales to related parties was net 60 days, while the terms for domestic sales were month-end 45~60 days. The collection period for third party overseas sales was net 30~60 days, while
the terms for third party domestic sales were month-end 30~60 days.



| | b. | Accounts receivable, net
| | -- | ------------------------



|                                                |  |                    |   |      |            |  |         |   |  |           
|----------------------------------------------- |  | ------------------ | - | ---- | ---------- |  | ------- | - |  | ----------
|                                                |  | As of December 31,
|                                                |  | 2008               |   | 2009
|                                                |  | Amount             |   |      | Percentage |  | Amount  |   |  | Percentage
|                                                |  | NT$000            |   |      |            |  | NT$000 |   |  |           
|SILICON                                         |  | 117,468            |   |      | 1          |  | 216,237 |   |  | 1         
|Others                                          |  | 135,968            |   |      | 2          |  | 101,626 |   |  | 1         
|                                                |  |                    |   |      |            |  |         |   |  |           
|Total                                           |  | 253,436            |   |      | 3          |  | 317,863 |   |  | 2         
|                                                |  |                    |   |      |            |  |         |   |  |           
|Less: Allowance for sales returns and discounts |  | (2,107             | ) |      |            |  | (2,273  | ) |  |           
|Less: Allowance for doubtful accounts           |  | (103,966           | ) |      |            |  | (74,882 | ) |  |           
|                                                |  |                    |   |      |            |  |         |   |  |           
|Net                                             |  | 147,363            |   |      |            |  | 240,708 |   |  |           
|                                                |  |                    |   |      |            |  |         |   |  |           



| | c. | During the period from October 29 to December 14, 2009, UMCs subsidiary, ALPHA WISDOM LTD. (ALPHA) acquired 42.53 percent ownership in UMCJ amounting to
403 thousand shares by an open purchase from the Japan Jasdaq Securities Exchange for approximately US$58 million. The purchase price of JPY12,500 per share was made by a tender offer which considered the shares current trading value and
future industry competition and operating strategies. ALPHA complied with Regulations Governing the Acquisition or Disposition of Assets by Public Companies of ROC and obtained a fairness opinion from a security expert and a Certified
Public Accountant to evaluate the reasonableness of the purchase price. Gains arising from the sidestream transaction amounting to NT$330 million were recognized by UMCs equity investees, including HSUN CHIEH INVESTMENT CO., LTD. and MEGA
MISSION LIMITED PARTNERSHIP. UMC eliminated NT$121 million in proportion to its ownership percentage while recognizing the investment gain or loss of these investees.
| | -- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | d. | Key management personnel compensation disclosure
| | -- | ------------------------------------------------



|                                                                             |  |                                  |  |        
|---------------------------------------------------------------------------- |  | -------------------------------- |  | -------
|                                                                             |  | For the years ended December 31,
|Item                                                                         |  | 2008                             |  | 2009   
|                                                                             |  | NT$000                          |  | NT$000
|Salary, compensation, allowance, income from professional practice and bonus |  | 203,321                          |  | 507,136
|                                                                             |  |                                  |  |        



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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



28. ASSETS PLEDGED AS COLLATERAL

As of December 31, 2008



|                           |  |           |  |                                    |  |                               
|-------------------------- |  | --------- |  | ---------------------------------- |  | ------------------------------
|                           |  | Amount    |  | Party to which asset(s)was
pledged |  | Purpose of pledge             
|                           |  | NT$000   |  |                                    |  |                               
|Deposit-out (Time deposit) |  | 620,224   |  | Customs                            |  | Customs duty guarantee        
|Machinery and equipment    |  | 6,162,081 |  | Bank of Taiwan                     |  | Collateral for long-term loans
|                           |  |           |  |                                    |  |                               
|Total                      |  | 6,782,305 |  |                                    |  |                               
|                           |  |           |  |                                    |  |                               

As of December 31, 2009



|                           |  |           |  |                                                   |  |                               
|-------------------------- |  | --------- |  | ------------------------------------------------- |  | ------------------------------
|                           |  | Amount    |  | Party to which asset(s)was
pledged                |  | Purpose of pledge             
|                           |  | NT$000   |  |                                                   |  |                               
|Deposit-out (Time deposit) |  | 640,623   |  | Customs                                           |  | Customs duty guarantee        
|Deposit-out (Time deposit) |  | 26,624    |  | Securities and FuturesInvestors Protection Center |  | Negotiation guarantee         
|Machinery and equipment    |  | 4,339,852 |  | Bank of Taiwan                                    |  | Collateral for long-term loans
|                           |  |           |  |                                                   |  |                               
|Total                      |  | 5,007,099 |  |                                                   |  |                               
|                           |  |           |  |                                                   |  |                               

29. COMMITMENT AND CONTINGENT LIABILITIES



| | (1) | The Company has entered into several patent license agreements and development contracts of intellectual property for a total contract amount of approximately NT$7.1
billion. Royalties and development fees payable in future years are NT$2.4 billion as of December 31, 2009.
| | --- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | (2) | UMC signed several construction contracts for the expansion of its factory premise. As of December 31, 2009, these construction contracts amounted to approximately
NT$2.8 billion and the unpaid portion of the contracts, which was not accrued, was approximately NT$0.2 billion.
| | --- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



| | (3) | The Company entered into several operating lease contracts for land. These renewable operating leases will expire in various years through 2049. Future minimum lease
payments under those leases are as follows:
| | --- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|                                 |  |          
|-------------------------------- |  | ---------
|For the years ended December 31, |  | Amount   
|                                 |  | NT$000  
|2010                             |  | 333,196  
|2011                             |  | 309,793  
|2012                             |  | 254,541  
|2013                             |  | 233,316  
|2014                             |  | 203,201  
|2015 and thereafter              |  | 1,582,000
|                                 |  |          
|Total                            |  | 2,916,047
|                                 |  |          

Rental expense for the years ended December 31,
2007, 2008 and 2009 was NT$336 million, NT$373 million and NT$328 million, respectively.



| | (4) | On February 15, 2005, the Hsinchu District Prosecutors Office conducted a search of UMCs facilities. On February 18, 2005, UMCs former Chairman
Mr. Robert H.C. Tsao, released a public statement, explaining that its assistance to HeJian Technology Corp. (HeJian) did not involve any investment or technology transfer.
| | --- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Furthermore, from the very beginning there was a verbal indication that, at the proper time, UMC would be compensated appropriately for
its assistance, and circumstances permitting, at some time in the future, it will push through the merger between two companies. However, no promise was made by UMC and no written agreement was made and executed. Upon UMCs request to
materialize the said verbal indication by compensating in the form of either cash or equity, the Chairman of the holding company of HeJian offered 15% of the approximately 700 million outstanding shares of the holding company of HeJian in
return for UMCs past assistance and for continued assistance in the future.

Immediately after UMC had received such
offer, it filed an application with the Investment Commission of the Ministry of Economic Affairs on March 18, 2005 (Ref. No. 94-Lian-Tung-Tzu-0222), for their executive guidance for the successful transfer of said shares to UMC. The
stockholders meeting dated June 13, 2005 resolved that to the extent permitted by law, UMC shall try to get the 15% of the outstanding shares offered by the holding company of HeJian as an asset of UMC. The holding company of HeJian
offered 106 million shares of its outstanding common shares in return for UMCs assistance. The holding company of HeJian has put all such shares in escrow. UMC was informed of such escrow on August 4, 2006. The subscription price per
share of the holding company of HeJian in the last offering was US$1.1. Therefore, the total market value of the said shares is worth more than US$110 million. However, UMC may not acquire the ownership of nor exercise the rights of the said shares
with any potential stock dividend or cash dividend distributed in the future until the ROC laws and regulations allow UMC to acquire and exercise. In the event that any stock dividend or cash dividend is distributed, UMCs stake in the holding
company of HeJian will accumulate accordingly.



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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



In April 2005, UMCs former Chairman Mr. Robert H.C. Tsao was personally fined
with in the aggregate amount of NT$3 million by the Financial Supervisory Commission, Executive Yuan, R.O.C. (ROC FSC) for failure to disclose material information relating to HeJian in accordance with applicable rules. As a result of the imposition
of the fines by the ROC FSC, UMC was also fined in the amount of NT$30,000 by Taiwan Stock Exchange (TSE) for the alleged non-compliance with the disclosure rules in relation to the material information. UMC and its former Chairman Mr. Robert
H.C. Tsao have filed for administrative appeal and reconsideration with the Executive Yuan, R.O.C. and TSE, respectively. Mr. Robert H.C. Tsaos administrative appeal was dismissed by the Executive Yuan, R.O.C. on February 21, 2006
and the ROC FSC transferred the case against Mr. Robert H.C. Tsao to the Administrative Enforcement Agency for enforcement of the fine. Mr. Robert H.C. Tsao has filed an administrative action against the ROC FSC with Taipei High
Administrative Court on April 14, 2006. On December 27, 2007, the Administrative High Court revoked the decision and ruled in favor of Mr. Tsao. In January 2008, the ROC FSC filed an appeal with the Supreme Administrative Court. On
November 5, 2009, the Supreme Administrative Court overruled ROC FSCs appeal.

For UMCs assistance to HeJian
Technology Corp., UMCs former Chairman Mr. Robert H.C. Tsao, former Vice Chairman Mr. John Hsuan, and Mr. Duen-Chian Cheng, the General Manager of Fortune Venture Capital Corp., which is 99.99% owned by UMC, were indicted for
violating the Business Entity Accounting Act and breach of trust under the Criminal Law by Hsinchu District Prosecutors Office on January 9, 2006. Mr. Robert H.C. Tsao and Mr. John Hsuan had officially resigned from their positions of
UMCs Chairman, Vice Chairman and directors prior to the announcement of the prosecution; for this reason, at the time of the prosecution, Mr. Robert H.C. Tsao and Mr. John Hsuan no longer served as UMCs directors and had not
executed their duties as UMCs Chairman and Vice Chairman.

In the future, if a guilty judgment is pronounced by the
court, such consequences would be Mr. Robert H.C. Tsao, Mr. John Hsuan and Mr. Duen-Chian Chengs personal concerns only; UMC would not be subject to indictment regarding this case. Mr. Robert H.C. Tsao, Mr. John Hsuan
and Mr. Duen-Chian Cheng were pronounced innocent of the charge by Hsinchu District Court on October 26, 2007. On November 15, 2007, Taiwans Hsinchu District Prosecutors Office filed an appeal. On December 31, 2008, Taiwan
High Court rejected the prosecutors appeal and sustained Hsinchu District Courts decision. On January 20, 2009, Taiwan High Prosecutors Office filed an appeal against Mr. Robert H.C. Tsao and Mr. John Hsuan with the
Supreme Court. On December 3, 2009, the Supreme Court reversed the Taiwan High Courts decision and remanded the case for new trial.



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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



On February 15, 2006, UMC was fined in the amount of NT$5 million for unauthorized
investment activities in Mainland China, implicating violation of Article 35 of the Act Governing Relations Between Peoples of the Taiwan Area and the Mainland Area by the R.O.C. Ministry of Economic Affairs (MOEA). However, as UMC
believes it was illegally and improperly fined, UMC had filed an administrative appeal against MOEA to the Executive Yuan on March 16, 2006. On October 19, 2006, Executive Yuan denied the administrative appeal filed by UMC. UMC had filed
an administrative litigation case against MOEA on December 8, 2006. Taipei High Administrative Court announced and reversed MOEAs administrative sanction on July 19, 2007. MOEA filed an appeal against UMC on August 10, 2007. On
December 10, 2009, the Supreme Administrative Court reversed the Taipei High Administrative Courts decision and remanded the case for new trial.



| | (5) | The Company convened its 19th session, 10th term of its Board of Directors meeting on April 29, 2009. During the meeting, its board approved to propose the
acquisition (the Acquisition) by UMC of the holding company of HeJian Technology (Suzhou) Co., Ltd. (HeJian). The stockholders meeting of the Company on June 10, 2009 approved the Acquisition. However, consummation
of the Acquisition is subject to approvals from governmental authorities.
| | --- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

30. SIGNIFICANT DISASTER LOSS

None.

31. SIGNIFICANT SUBSEQUENT EVENT

The Company has evaluated subsequent events from the balance sheet date through April 30, 2010 and has determined there are no items to
be disclosed.



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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



32. RECLASSIFICATION

Certain comparative amounts have been reclassified to conform to the current years presentation.



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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



33. FINANCIAL INSTRUMENTS



| | (1) | Financial risk management objectives and policies
| | --- | -------------------------------------------------

The Companys principal financial instruments, other than derivatives, are comprised of cash and cash equivalents, common stock,
preferred stock, bonds, open-end funds, bank loans, and bonds payable. The main purpose of these financial instruments is to manage financing for the Companys operations. The Company also holds various other financial assets and liabilities
such as accounts receivable and accounts payable, which arise directly from its operations.

UMC also enters into derivative
transactions, including interest rate swap agreements and forward currency contracts. The purpose of these derivative transactions is to mitigate interest rate risk and foreign currency exchange risks arising from UMCs operations and financing
activities.

The main risks arising from the Companys financial instruments include cash flow interest rate risk, foreign
currency risk, commodity price risk, credit risk, and liquidity risk.

Cash flow interest rate risk

UMC utilizes interest rate swap agreements to avoid its cash flow interest rate risk on the counter-floating rate of its unsecured
domestic bonds issued during the period from May 21 to June 24, 2003. The terms of the interest rate swap agreements are the same as those of the domestic bonds, which are five and seven years. The floating rate is reset annually.

The Companys bank loans bear floating interest rates. The fluctuation of market interest will result in changes in the
Companys future cash flows.

Foreign currency risk

The Company has foreign currency risk arising from purchases or sales. The Company utilizes spot or forward contracts to avoid foreign
currency risk. The notional amounts of the foreign currency contracts are the same as the amount of the hedged items. In principle, the Company does not carry out any forward contracts for uncertain commitments.

Commodity price risk

The Companys exposure to commodity price risk is minimal.



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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



Credit risk

The Company only trades with established and creditworthy third parties. It is the Companys policy that all customers who wish to
trade on credit terms are subject to credit verification procedures. In addition, receivable balances are monitored on an ongoing basis, which consequently minimizes the Companys exposure to bad debts.

With respect to credit risk arising from the other financial assets of the Company, it is comprised of cash and cash equivalents and
certain derivative instruments, the Companys exposure to credit risk arising from the default of counter-parties is limited to the carrying amount of these instruments.

Although the Company only trades with established third parties, it will request collateral to be provided by third parties with less
favorable financial positions.

Liquidity risk

The Companys objective is to maintain a balance of funding continuity and flexibility through the use of financial instruments such
as cash and cash equivalents, bank loans and bonds.



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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



| | (2) | Information of financial instruments
| | --- | ------------------------------------



| | a. | Fair value of financial instruments
| | -- | -----------------------------------



|                                                            |  |                    |  |            |  |            |  |           
|----------------------------------------------------------- |  | ------------------ |  | ---------- |  | ---------- |  | ----------
|                                                            |  | As of December 31,
|                                                            |  | 2008               |  | 2009      
|Financial Assets                                            |  | Book Value         |  | Fair Value |  | Book Value |  | Fair Value
|                                                            |  | NT$000            |  | NT$000    |  | NT$000    |  | NT$000   
|Non-derivative                                              |  |                    |  |            |  |            |  |           
|Cash and cash equivalents                                   |  | 48,566,649         |  | 48,566,649 |  | 66,152,960 |  | 66,152,960
|Financial assets at fair value through profit or loss       |  | 1,741,315          |  | 1,741,315  |  | 1,932,315  |  | 1,932,315 
|Held-to-maturity financial assets                           |  | 352,645            |  | 351,924    |  |           |  |          
|Receivables                                                 |  | 8,961,573          |  | 8,961,573  |  | 17,490,054 |  | 17,490,054
|Available-for-sale financial assets                         |  | 16,283,917         |  | 16,283,917 |  | 41,357,636 |  | 41,357,636
|Financial assets measured at cost                           |  | 7,656,688          |  |           |  | 7,628,523  |  |          
|Long-term investments accounted for under the equity method |  | 8,321,221          |  | 7,965,944  |  | 12,168,942 |  | 11,643,258
|Prepayment for long-term investments                        |  | 5,160              |  |           |  | 322,290    |  |          
|                                                            |  |                    |  |           
|Derivative                                                  |  |                    |  |            |  |            |  |           
|Interest rate swap agreements                               |  | 113,550            |  | 113,550    |  | 88,410     |  | 88,410    
|Forward contracts                                           |  | 59,750             |  | 59,750     |  | 75,366     |  | 75,366    
|                                                            |  |                    |  |           
|Financial Liabilities                                       |  |                    |  |            |  |            |  |           
|Non-derivative                                              |  |                    |  |            |  |            |  |           
|Short-term loans                                            |  | 132,610            |  | 132,610    |  | 128,682    |  | 128,682   
|Payables                                                    |  | 12,094,023         |  | 12,094,023 |  | 19,786,207 |  | 19,786,207
|Bonds payable (current portion included)                    |  | 7,497,110          |  | 7,143,323  |  | 12,767,137 |  | 12,352,056
|Long-term loans (current portion included)                  |  | 700,000            |  | 700,000    |  | 800,000    |  | 800,000   
|Derivative                                                  |  |                    |  |            |  |            |  |           
|Interest rate swap agreements                               |  | 33,189             |  | 33,189     |  |           |  |          
|Derivatives embedded in exchangeable bonds                  |  |                   |  |           |  | 1,914,879  |  | 1,914,879 



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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



| | b. | The methods and assumptions used to measure the fair value of financial instruments are as follows:
| | -- | ---------------------------------------------------------------------------------------------------



| | i. | The book values of short-term financial instruments approximate their fair value due to their short maturities. Short-term financial instruments include cash and cash
equivalents, receivables, short-term loans and payables.
| | -- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | ii. | The fair value of financial assets at fair value through profit or loss and available-for-sale financial assets are based on the quoted market prices. If there are
restrictions on the sale or transfer of an available-for-sale financial asset, the fair value of the asset will be determined based on similar but unrestricted financial assets quoted market price with appropriate discounts for the
restrictions.
| | --- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | iii. | The fair value of long-term investments accounted for under equity method are based on the quoted market prices. If market prices are unavailable, the Company estimates
the fair value based on the book values.
| | ---- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | iv. | The fair value of financial assets measured at cost and prepayment for long-term investments are unable to be estimated since there is no active market in trading those
unlisted investments.
| | --- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | v. | The fair value of bonds payable is determined by the market price or other information.
| | -- | ---------------------------------------------------------------------------------------



| | vi. | The fair value of long-term loans is determined using discounted cash flow analysis, based on the Companys current incremental borrowing rates for borrowings with
similar types.
| | --- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | vii. | The fair value of derivative financial instruments is based on the amount the Company expects to receive (positive) or to pay (negative) assuming that the contracts are
settled in advance at the balance sheet date.
| | ---- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



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| | c. | The fair value of the Companys financial instruments is determined by the quoted prices in active markets, or if the market for a financial instrument is not
active, the Company establishes fair value by using a valuation technique:
| | -- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|                                                            |  |                         |  |                     |  |            |  |           
|----------------------------------------------------------- |  | ----------------------- |  | ------------------- |  | ---------- |  | ----------
|                                                            |  | Active Market Quotation |  | Valuation Technique
|Non-derivative Financial Instruments                        |  | 2008.12.31              |  | 2009.12.31          |  | 2008.12.31 |  | 2009.12.31
|                                                            |  | NT$000                 |  | NT$000             |  | NT$000    |  | NT$000   
|Financial assets                                            |  |                         |  |                     |  |            |  |           
|Financial assets at fair value through profit or loss       |  | 1,741,315               |  | 1,932,315           |  |           |  |          
|Held-to-maturity financial assets                           |  | 351,924                 |  |                    |  |           |  |          
|Available-for-sale financial assets                         |  | 15,673,267              |  | 40,156,409          |  | 610,650    |  | 1,201,227 
|Long-term investments accounted for under the equity method |  |                        |  |                    |  | 7,965,944  |  | 11,643,258
|Financial liabilities                                       |  |                         |  |                     |  |            |  |           
|Short-term loans                                            |  |                        |  |                    |  | 132,610    |  | 128,682   
|Bonds payable (current portion included)                    |  | 7,143,323               |  | 7,187,123           |  |           |  | 5,164,933 
|Long-term loans (current portion included)                  |  |                        |  |                    |  | 700,000    |  | 800,000   
|                                                            |  |                         |  |                    
|Derivative Financial Instruments                            |  |                         |  |                     |  |            |  |           
|Financial assets                                            |  |                         |  |                     |  |            |  |           
|Interest rate swap agreements                               |  |                        |  |                    |  | 113,550    |  | 88,410    
|Forward contracts                                           |  |                        |  |                    |  | 59,750     |  | 75,366    
|Financial liabilities                                       |  |                         |  |                     |  |            |  |           
|Interest rate swap agreements                               |  |                        |  |                    |  | 33,189     |  |          
|Derivatives embedded in exchangeable bonds                  |  |                        |  |                    |  |           |  | 1,914,879 



| | d. | For the years ended December 31, 2008 and 2009, the total change in fair value estimated by using valuation techniques and recognized in the consolidated statement
of income were losses of NT$143 million and NT$449 million, respectively.
| | -- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



| | e. | UMCs derivative financial assets with cash flow interest rate risk exposure were NT$114 million and NT$88 million as of December 31, 2008 and 2009,
respectively. UMCs derivative financial liabilities with cash flow interest rate risk exposure were NT$33 million and nil as of December 31, 2008 and 2009, respectively.
| | -- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | f. | During the years ended December 31, 2008 and 2009, total interest revenues for financial assets or liabilities that are not at fair value through profit or loss
were NT$686 million and NT$170 million, respectively, while interest expense for the years ended December 31, 2008 and 2009 were NT$109 million and NT$180 million, respectively.
| | -- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | (3) | As of December 31, 2008, the Company held floating rate notes and bonds recorded as held-to-maturity financial assets for the earning of interest income. The
details are disclosed as follows:
| | --- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

As of December 31, 2008



|                          |  |         |  |      |   |  |           
|------------------------- |  | ------- |  | ---- | - |  | ----------
|Underlying securities     |  | Amount  |  | Rate |   |  | Due Date  
|                          |  | NT$000 |  |      |   |  |           
|MORGAN STANLEY & CO. INC. |  | 324,297 |  | 4.30 | % |  | 2009.01.22
|Floating rate notes       |  |         |  |      |   |  |           
|GOLDMAN SACHS GROUP INC.  |  | 28,348  |  | 6.50 | % |  | 2009.02.25
|Bonds                     |  |         |  |      |   |  |           



| | (4) | UMC entered into interest rate swap agreements and forward contracts for hedging the interest rate risk arising from the counter-floating rate of its domestic bonds and
for hedging the exchange rate risk arising from the net assets or liabilities denominated in foreign currency. UMC entered into these derivative financial instruments in connection with its hedging strategy to reduce the market risk of the hedged
items, and these financial instruments were not held for trading purposes. The relevant information on the derivative financial instruments entered into by UMC is as follows:
| | --- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | a. | UMC utilized interest rate swap agreements to hedge its interest rate risk on the counter-floating rate of its unsecured domestic bonds issued during the period from
May 21 to June 24, 2003. The terms of the interest rate swap agreements are the same as those of the domestic bonds, which are five and seven years. The floating rate is reset annually. The details of interest rate swap agreements are
summarized as follows:
| | -- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

As of December 31, 2008 and 2009, UMC had the following interest rate swap
agreements outstanding:

As of December 31, 2008



|                 |  |                               |  |                               |  |                   |  
|---------------- |  | ----------------------------- |  | ----------------------------- |  | ----------------- | -
|Notional Amount  |  | Contract Period               |  | Interest Rate Received        |  | Interest RatePaid |  
|NT$7,500 million |  | May 21, 2003 to June 24, 2010 |  | 4.3% minus USD
12-Month LIBOR |  | 1.48              | %



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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



As of December 31, 2009



|                 |  |                               |  |                               |  |                   |  
|---------------- |  | ----------------------------- |  | ----------------------------- |  | ----------------- | -
|Notional Amount  |  | Contract Period               |  | Interest Rate Received        |  | Interest RatePaid |  
|NT$7,500 million |  | May 21, 2003 to June 24, 2010 |  | 4.3% minus USD
12-Month LIBOR |  | 1.48              | %



| | b. | The details of forward contracts entered into by UMC are summarized as follows:
| | -- | -------------------------------------------------------------------------------

As of December 31, 2008



|                  |  |                      |  |                                      
|----------------- |  | -------------------- |  | -------------------------------------
|Type              |  | Notional Amount      |  | Contract Period                      
|Forward contracts |  | Sell USD 188 million |  | November 13, 2008 to February 3, 2009

As of December 31, 2009



|                  |  |                      |  |                                      
|----------------- |  | -------------------- |  | -------------------------------------
|Type              |  | Notional Amount      |  | Contract Period                      
|Forward contracts |  | Sell USD 267 million |  | November 16, 2009 to January 26, 2010



| | c. | Transaction risk
| | -- | ----------------



| | (a) | Credit risk
| | --- | -----------

There is no
significant credit risk exposure with respect to the above transactions as the counter-parties are reputable financial institutions with good global standing.



| | (b) | Liquidity and cash flow risk
| | --- | ----------------------------

The cash flow requirements on the interest rate swap agreements are limited to the net interest payables or receivables arising from the
differences in the swap rates. The cash flow requirements on forward contracts are limited to the forward contracts principal amount, which is the same as the underlying net assets or liabilities denominated in their foreign currencies at the
settlement day. Therefore, no significant cash flow risk is anticipated since the working capital is sufficient to meet the cash flow requirements.



| | (c) | Market risk
| | --- | -----------

Interest rate swap
agreements and forward contracts are intended for hedging purposes. Gains or losses arising from the fluctuations in interest rates and exchange rates are likely to be offset against the gains or losses from the hedged items. As a result, no
significant exposure to market risk is anticipated.



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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



| | d. | The presentation of derivative financial instruments in the financial statements is summarized as follows:
| | -- | ----------------------------------------------------------------------------------------------------------

As of December 31, 2008 and 2009, UMCs interest rate swap agreements were classified as financial assets at fair value through
profit or loss amounted to NT$114 million and NT$88 million, respectively; as of December 31, 2008 and 2009, UMCs interest rate swap agreements were classified as financial liabilities at fair value through profit or loss amounted to
NT$33 million and nil, respectively. A related valuation gain of NT$174 million and loss of NT$25 million were recorded under non-operating expense and revenue for the years ended December 31, 2008 and 2009, respectively.

As of December 31, 2008 and 2009, the forward contracts were classified as current assets amounted to NT$60 million and NT$75
million, respectively, and for the changes in valuation, a loss of NT$317 million and a gain of NT$163 million were recorded under non-operating revenue and expense for the years ended December 31, 2008 and 2009, respectively.



| | (5) | Details of subsidiaries that hold UMCs stock are as follows:
| | --- | -------------------------------------------------------------

As of December 31, 2008



|                              |  |                              |  |         |  |                     
|----------------------------- |  | ---------------------------- |  | ------- |  | --------------------
|Subsidiary                    |  | No. of Shares(in 
thousands) |  | Amount  |  | Purpose             
|                              |  |                              |  | NT$000 |  |                     
|FORTUNE VENTURE CAPITAL CORP. |  | 16,079                       |  | 119,465 |  | Long-term investment

As of December 31, 2009



|                              |  |                              |  |         |  |                     
|----------------------------- |  | ---------------------------- |  | ------- |  | --------------------
|Subsidiary                    |  | No. of Shares(in 
thousands) |  | Amount  |  | Purpose             
|                              |  |                              |  | NT$000 |  |                     
|FORTUNE VENTURE CAPITAL CORP. |  | 16,079                       |  | 276,554 |  | Long-term investment



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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



| | (6) | During the period from October 29 to December 14, 2009, UMCs subsidiary, ALPHA WISDOM LTD. (ALPHA) acquired 42.53 percent ownership in UMCJ amounting to
403 thousand shares by an open purchase from the Japan Jasdaq Securities Exchange for approximately US$58 million. According to the SFAS No. 25, Business Combination  Accounting Treatment under Purchase Method, the excess
of fair value of UMCJs identifiable net assets acquired by ALPHA and the purchase price should be allocated proportionately to UMCJs non-current assets by those assets respective fair values. When the book values of those
non-current assets acquired are reduced to zero, the remaining excess should be recognized as an extraordinary gain. ALPHA recognized an extraordinary gain of NT$679 million, and in accordance with the regulations, NT$30 million were deferred for
future recognition.
| | --- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

34. SEGMENT INFORMATION



| | (1) | Operations in different industries
| | --- | ----------------------------------

The Company operates as one operating and reportable segment in semiconductor industry because the chief operating decision maker reviews
the operating results of the entire consolidated company to make decisions about allocating resources and assessing performance for the entire company.



| | (2) | Operations in different geographic areas
| | --- | ----------------------------------------

The geographic region to which revenue is assigned is based on the location of the Company or its subsidiaries to which revenue earned
from external customers is attributable.



|                       |  |                                 |  |                  |  |                      |  |                  |  |                      |  |                 
|---------------------- |  | ------------------------------- |  | ---------------- |  | -------------------- |  | ---------------- |  | -------------------- |  | ----------------
|                       |  | For the year ended December 31,
|                       |  | 2007                            |  | 2008             |  | 2009                
|                       |  | Net operatingrevenues           |  | Long-livedassets |  | Netoperatingrevenues |  | Long-livedassets |  | Netoperatingrevenues |  | Long-livedassets
|                       |  | NT$000                         |  | NT$000          |  | NT$000              |  | NT$000          |  | NT$000              |  | NT$000         
|Taiwan                 |  | 43,029,375                      |  | 82,780,850       |  | 28,871,703           |  | 61,364,804       |  | 34,893,626           |  | 51,684,058      
|Asia, excluding Taiwan |  | 7,792,941                       |  | 59,112,031       |  | 4,903,801            |  | 48,193,900       |  | 9,690,051            |  | 38,952,619      
|North America          |  | 53,177,099                      |  | 23,042           |  | 53,640,645           |  | 13,787           |  | 45,894,083           |  | 7,680           
|Europe                 |  | 9,311,883                       |  | 4,002            |  | 9,397,397            |  | 2,843            |  | 912,005              |  | 1,204           
|                       |  |                                 |  |                  |  |                      |  |                  |  |                      |  |                 
|                       |  | 113,311,298                     |  | 141,919,925      |  | 96,813,546           |  | 109,575,334      |  | 91,389,765           |  | 90,645,561      
|                       |  |                                 |  |                  |  |                      |  |                  |  |                      |  |                 



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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



35. US GAAP RECONCILIATION

The accompanying consolidated financial statements have been prepared in conformity with generally accepted accounting principles in the Republic of China
(ROC GAAP), which differ in certain material respects from generally accepted accounting principles in the United States (US GAAP). Such differences are disclosed below.

(1) Compensation

Remuneration to directors and supervisors

The Companys Articles of Incorporation (AOI) requires cash remuneration to its directors and supervisors from appropriating a portion of net profit,
if any. Under ROC GAAP, for periods prior to January 1, 2008, such payments were charged directly to retained earnings in the period when stockholders approve such payment. Effective January 1, 2008, in accordance with ARDF Interpretation
96-052, remunerations to directors and supervisors are charged to compensation expense in the period when services are rendered and are no longer accounted for as a reduction of retained earnings. Under US GAAP, such cash payments are recorded
as compensation expenses in the period when services are rendered.

Employee bonus

Pursuant to the Companys AOI, certain employees of the Company are entitled to minimum bonus when certain objectively determinable financial
criteria are met as at the year-end. The Companys AOI specifies that employee bonus can be settled in the form of cash or common shares or a combination of both, subject to stockholders approval at the annual stockholders meeting
in the subsequent year. Under ROC GAAP, employee bonus relating to periods prior to January 1, 2008 was treated as an appropriation of retained earnings and recorded when the stockholders approval was obtained. Stock bonus was recorded at
the par value of the common share of NT$10.00. Employee bonus relating to the year beginning January 1, 2008 is charged to compensation expense and accrued based on managements estimate as charged and accrued under US GAAP. The employee
bonus is initially accrued as at the year-end based on managements estimate according to AOI with adjustment in the subsequent year after stockholders approval. Compensation expense relating to stock bonus is determined based on the fair
market value of the Companys common stock on the grant date.

Treasury stock purchased by employees

From time to time, the Company offers shares of common stock in treasury for certain employees to subscribe to compensate them for their productivity and
loyalty. Under ROC GAAP, for such plan granted prior to January 1, 2008, the difference, if any, between the cost paid by the Company for the treasury stock and the cash received from our employees is charged to a stockholders equity
account. For such plans granted since January 1, 2008, compensation expenses shall be measured and recognized as under US GAAP. Under US GAAP, the Company recognizes the difference between the closing quoted market price of the shares at
grant date and cash received from employees as compensation expense. In November 2007, employees purchased 97 million shares of the Companys treasury stock at a weighted-average price of NT$19.15 per share, which was the Companys
weighted-average cost of treasury stock. The closing quoted market price of the Companys shares on the grant date was NT$19.95 per share. The shares purchased were fully vested on the date of grant. As a result, the Company recognized
compensation expense of NT$78 million in 2007 under US GAAP.



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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



Employee stock options

Under ROC GAAP, for stock options granted prior to January 1, 2008, the Company applied the intrinsic value method to recognize the difference
between the market price of the stock at grant date and the exercise price of its employee stock options as compensation expense. For stock options granted on or after January 1, 2008, the Company adopted ROC SFAS 39 to recognize compensation
cost using the fair value method which is consistent with US GAAP. The Company amortized share-based compensation expense over the vesting period based on the grant-date fair value. The fair value of liability awards is remeasured at each reporting
date with fair value changes charged to compensation expenses accordingly. Compensation expense is recognized on a graded-vesting basis over the requisite service period of the options.

The Company uses Black-Scholes option-pricing model in estimating the fair value of stock options. The main inputs and assumptions used in the model
include the grant date stock price, exercise price of the option, volatility of the Companys stock, the expected option term, the risk-free rate and the Companys dividend yield. The Company determines expected volatility based on
historical stock price volatility over the time period equal to the expected term of the employee stock options because the Companys shares have been publicly traded for a long time. For the options granted prior to 2008, the Company
determined the expected term as the mid-point between the vesting period and the contractual term by using the simplified method. For the options granted after 2008, the Company determined the expected term based on historical stock option exercise
data. The Company uses the average yield at grant date of Taiwan Government Bond with the remaining term similar to the expected option term as the risk-free interest rate. In addition, the Company used the historical distribution of cash dividends
and the historical average market price of the Companys common stock to estimate future dividend yields. The estimates of option fair value are not expected to foresee future events or the values realized by employees who receive stock option.
In addition, later events are not indicative of the rationality of the initial estimates of option fair value used by the Company.

The
Company adjusts share-based compensation on an annual basis for changes in expected forfeitures based on the examination of latest employee stock options forfeiture activity. The effect of adjusting the forfeiture rate used for expense amortization
is recognized in the corresponding period that the expected forfeiture rate is changed.



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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



On September 11, 2002, October 8, 2003, September 30,
2004, December 22, 2005, October 9, 2007 and May 12, 2009, the Company was authorized to issue employee stock options. The total number of options approved under these six series was 2.65 billion units, with each unit
entitling the optionee to subscribe for 1 share of the Companys common stock. The exercise price of options was set at the closing price of the Companys common stock on the date of grant. The Company will issue new shares upon exercise
of employee stock options. The contractual life of the options is 6 years. Employees may exercise up to 50% of the options after 2 years, up to 75% after 3 years, and up to 100% after 4 years. As resolved during the stockholders meeting in
2007, the Company carried out a capital reduction of approximately 30% of its outstanding shares in August 2007. The terms of the first four series were modified to reflect the impact of the capital reduction. As a result, each unit of option under
the first four series is entitled to subscribe for about 0.7 share of the Companys common stock and the exercise price increased accordingly. The Company did not have any incremental compensation costs associated with this modification. As of
December 31, 2009, the total number of option units outstanding was 862 million units and exercise price ranged from NT$10.40 to NT$31.25.

No stock options were granted in 2008 and the assumptions used in the Black-Scholes option-pricing model for options granted for the years ended
December 31, 2007 and 2009, respectively, are as follows: expected dividend yields of 1.71% and 1.98%; volatility factors of the expected market price of UMCs common stock of 35.45% ~ 37.70% and 39.67% ~ 41.05%; risk-free interest rate of
2.48% and 1.01%; and expected life of the option of 4 ~ 5 years and 3.16 ~ 5.03 years. As of December 31, 2009, the weighted-average remaining contractual life of outstanding options, fully vested and expected to vest options, and exercisable
options was 4.13 years, 4.02 years and 3.06 years, respectively.

A summary of employee stock options activities as of December 31, 2009
and changes during the year then ended is presented below:



|                                                   |  |                                      |   |  |                                                 |   |  |                                                     |  |     
|-------------------------------------------------- |  | ------------------------------------ | - |  | ----------------------------------------------- | - |  | --------------------------------------------------- |  | ----
|                                                   |  | For the year ended December 31, 2009
|                                                   |  | Number ofoptions                     |   |  | Available shares(adjusted for capitalreduction) |   |  | Weighted-averageExercise Price pershare as adjusted
|                                                   |  | (In thousands)                       |   |  | (In thousands)                                  |   |  | NT$                                                 |  | US$ 
|Outstanding at beginning of period                 |  | 709,484                              |   |  | 627,086                                         |   |  | 20.79                                               |  | 0.65
|Granted                                            |  | 300,000                              |   |  | 300,000                                         |   |  | 10.40                                               |  | 0.33
|Exercised                                          |  |                                     |   |  |                                                |   |  |                                                    |  |    
|Forfeited                                          |  | (76,492                              | ) |  | (67,867                                         | ) |  | 19.43                                               |  | 0.61
|Expired                                            |  | (71,221                              | ) |  | (49,653                                         | ) |  | 28.41                                               |  | 0.89
|                                                   |  |                                      |   |  |                                                 |   |  |                                                     |  |     
|Outstanding at end of period                       |  | 861,771                              |   |  | 809,566                                         |   |  | 16.59                                               |  | 0.52
|                                                   |  |                                      |   |  |                                                 |   |  |                                                     |  |     
|Fully vested and expected to vest at end of period |  | 768,031                              |   |  | 716,154                                         |   |  | 17.07                                               |  | 0.53
|                                                   |  |                                      |   |  |                                                 |   |  |                                                     |  |     
|Exercisable at end of period                       |  | 355,715                              |   |  | 308,157                                         |   |  | 21.19                                               |  | 0.66
|                                                   |  |                                      |   |  |                                                 |   |  |                                                     |  |     



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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



The weighted-average grant-date fair value of options granted during 2007, 2008, and 2009 was NT$5.4,
nil, and NT$2.8, respectively. The total intrinsic value of the options exercised during 2007 was NT$53 million. There were no options exercised in 2008 and 2009. The total fair value of options vested during 2007, 2008, and 2009 was NT$449 million,
NT$427 million, and NT$1,278 million, respectively. Aggregate intrinsic value of outstanding options, fully vested and expected to vest options, and exercisable options at December 31, 2009 are NT$1,970 million, NT$1,535 million, and nil,
respectively. As of December 31, 2009, unrecognized compensation expenses related to nonvested options granted under the employee stock options plan totaled NT$897 million. The weighted-average period of expense expected to be recognized is
2.75 years.

The share-based compensation effects in income and capitalization as part of inventory relating to employee stock options and
treasury stock purchased by employees are summarized as follows:



|                                        |  |                                 |   |  |          |   |  |          |  
|--------------------------------------- |  | ------------------------------- | - |  | -------- | - |  | -------- | -
|                                        |  | For the year ended December 31, |  
|                                        |  | 2007                            |   |  | 2008     |   |  | 2009     |  
|                                        |  | NT$000                         |   |  | NT$000  |   |  | NT$000  |  
|Net effects in income                   |  | (454,524                        | ) |  | (895,191 | ) |  | (978,077 | )
|                                        |  |                                 |   |  |          |   |  |          |  
|Net effects on inventory capitalization |  | 42,310                          |   |  | 62,806   |   |  | 64,415   |  
|                                        |  |                                 |   |  |          |   |  |          |  

The following tables reflect the above noted differences between US GAAP and ROC GAAP relating to compensations:



|                                                                                                           |  |                                 |   |  |            |   |  |          |  
|---------------------------------------------------------------------------------------------------------- |  | ------------------------------- | - |  | ---------- | - |  | -------- | -
|                                                                                                           |  | For the year ended December 31, |  
|                                                                                                           |  | 2007                            |   |  | 2008       |   |  | 2009     |  
|                                                                                                           |  | NT$000                         |   |  | NT$000    |   |  | NT$000  |  
|Net income impact of compensation adjustments:                                                             |  |                                 |   |  |            |   |  |          |  
|                                                                                                           |  |                                 |  
|Employee bonus accrual                                                                                     |  | (596,961                        | ) |  |           |   |  |         |  
|Adjustment for final award                                                                                 |  | (1,549,414                      | ) |  | (979,016   | ) |  |         |  
|                                                                                                           |  |                                 |   |  |            |   |  |          |  
|Total employee bonus                                                                                       |  | (2,146,375                      | ) |  | (979,016   | ) |  |         |  
|Remuneration to directors and supervisors                                                                  |  | (11,939                         | ) |  |           |   |  |         |  
|Treasury stock purchased by employees                                                                      |  | (77,954                         | ) |  |           |   |  |         |  
|Employee stock options                                                                                     |  | (402,134                        | ) |  | (912,888   | ) |  | (804,065 | )
|Allocation to inventories, net of prior period allocations to inventories which are sold in current period |  | (9,516                          | ) |  | (33,104    | ) |  | 1,609    |  
|                                                                                                           |  |                                 |   |  |            |   |  |          |  
|Total US GAAP adjustment to net income relating to compensation                                            |  | (2,647,918                      | ) |  | (1,925,008 | ) |  | (802,456 | )
|                                                                                                           |  |                                 |   |  |            |   |  |          |  



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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



|                                                                          |  |                    |  |        
|------------------------------------------------------------------------- |  | ------------------ |  | -------
|                                                                          |  | As of December 31,
|                                                                          |  | 2008               |  | 2009   
|                                                                          |  | NT$000            |  | NT$000
|Stockholders equity impact of compensation adjustments:                  |  |                    |  |        
|Employee stock options                                                    |  | 62,806             |  | 64,415 
|                                                                          |  |                    |  |        
|Total US GAAP adjustment to stockholders equity relating to compensation |  | 62,806             |  | 64,415 
|                                                                          |  |                    |  |        

(2) Equity Investees  Variance between
US GAAP and ROC GAAP

The Companys proportionate share of the income (loss) and stockholders equity from an equity
investee under ROC GAAP may differ from US GAAP if the equity investees net income (loss) and stockholders equity are different under the two GAAPs. Those differences for the equity investees include accounting for compensation,
income tax and investments in debt and equity securities.

(3) Investments in Debt and Equity Securities

(a) Change in fair value of investments

Unrealized gains (losses) on trading securities held at December 31, 2007, 2008 and 2009 were NT$(2,937) million, NT$(3,110) million and NT$91
million, respectively.

Investment in restricted stock, for which sale is restricted by governmental or contractual requirement is accounted
for as an available-for-sale security under ROC GAAP, and its fair value should be adjusted for the effect of restriction. Under US GAAP, however, the restricted investment which does not meet the definition of an equity security with readily
determinable fair value is accounted for as a cost method investment. In 2007, as our restricted investments were classified as a cost method investment under US GAAP while available-for-sale securities under ROC GAAP, we recorded an adjustment
to decrease other comprehensive income by NT$140 million. These restricted investments were classified as available-for-sale securities at December 31, 2008 because the period of restriction terminates within one year from the reporting date.
The restriction expired in 2009.

When the Company loses its significant influence on an investment accounted for under the equity method and
reclassifies it as an available-for-sale security, the proportionate share of an investees equity adjustments for other comprehensive income should remain as a part of the carrying amount of the investment under ROC GAAP and the dividends
received from the available-for-sale security which were declared from pre-acquisition profits are deducted from the cost of the security. However, under US GAAP, the proportionate share of an investees equity adjustments for other
comprehensive income should be offset against the carrying amount of the investment at the time significant influence is lost, and the dividends received from the available-for-sale security are accounted for as dividend income. Accordingly,
dividend income for the year ended December 31, 2007 were increased by NT$165 million and the accumulated other comprehensive income related to the unrealized gains on available-for-sale securities as of December 31, 2007, 2008 and 2009
were decreased by NT$1,036 million, NT$1,038 million and NT$975 million, respectively.



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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



Prior to 2006, certain available-for-sale investments under US GAAP were accounted as equity method
investments under ROC GAAP. The differences in the application of equity method led to different current cost basis under ROC GAAP and US GAAP and resulted in an adjustment to increase accumulated other comprehensive income related to
unrealized losses on available-for-sale securities of NT$2,090 million as of December 31, 2007, 2008 and 2009.

The difference in cost
basis resulted in an adjustment to decrease disposal gain of NT$97 million for the year ended December 31, 2009 under US GAAP for the disposal of these investments.

Information on sales of available-for-sale equity securities for the years ended December 31, 2007, 2008 and 2009 is as follows:



|                                     |  |                    |  |                     |  |                     
|------------------------------------ |  | ------------------ |  | ------------------- |  | --------------------
|                                     |  | Proceeds fromsales |  | Gross realizedgains |  | Gross realizedlosses
|                                     |  | NT$000            |  | NT$000             |  | NT$000             
|For the year ended December 31, 2007 |  | 14,725,724         |  | 9,690,626           |  | 13,732              
|For the year ended December 31, 2008 |  | 4,270,983          |  | 2,983,484           |  | 129,539             
|For the year ended December 31, 2009 |  | 2,793,590          |  | 1,767,765           |  |                    

Information on
available-for-sale equity securities, including depositary receipts and funds, still held at each balance sheet date is as follows:



|                        |  |            |  |                      |  |                       |  |                    |  |             
|----------------------- |  | ---------- |  | -------------------- |  | --------------------- |  | ------------------ |  | ------------
|                        |  | Fair Value |  | Totalunrealizedgains |  | Totalunrealizedlosses |  | Netunrealizedgains |  | AdjustedCost
|                        |  | NT$000    |  | NT$000              |  | NT$000               |  | NT$000            |  | NT$000     
|As of December 31, 2007 |  | 49,376,537 |  | 27,979,084           |  | 332,974               |  | 27,646,110         |  | 21,730,427  
|As of December 31, 2008 |  | 16,283,917 |  | 4,483,928            |  | 3,730,656             |  | 753,272            |  | 15,530,645  
|As of December 31, 2009 |  | 41,357,636 |  | 26,801,606           |  | 81,156                |  | 26,720,450         |  | 14,637,186  



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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



The fair value of available-for-sale equity securities with accumulated other comprehensive income
related to unrealized losses was NT$5,325 million as of December 31, 2008. As of December 31, 2009, the Company had two investments with gross unrealized losses of NT$81 million on available-for-sale equity securities with fair value of
NT$456 million. This includes NT$48 million of gross unrealized losses related to individual securities with fair value of NT$227 million that had been in a continuous loss position for 12 months or more. After analyzing the financial and operating
position and industry stability of the available-for-sale equity security and the fluctuations in the stock market, we expected that the securitys market value will be recovered in our holding period. For the years ended December 31,
2007, 2008 and 2009, NT$9,564 million, NT$(4,114) million and NT$1,769 million, respectively, were reclassified from other comprehensive income to the consolidated statements of income upon the disposal or impairment of available-for-sale
securities. Such amounts were determined by average cost method. The Company did not transfer any available-for-sale securities to trading securities for the years ended December 31, 2007, 2008 and 2009.

(b) Impairment of investments in securities

Under ROC GAAP, for long-term investments over which the Company does not have the ability to exercise significant influence or control, unrealized losses
would be reported on the consolidated statements of income if evidence indicates that the value of an investment has been impaired and is unlikely to recover in the future. Nevertheless, ROC GAAP does not provide additional definition or guidance on
how to assess the likelihood of future recovery. Under US GAAP, for individual securities classified as either available-for-sale or held-to-maturity, the Company determines whether a decline in fair value below cost is other than temporary
pursuant to guidance from ASC 320-10-35, InvestmentsDebt and Equity Securities. In general, a decline in market value below cost for a continuous period of six months is considered to be other than temporary unless there is persuasive
evidence to the contrary. When determining the impairment or other-than-temporary decline, the Company considers, among other factors, all available information concerning the future prospects of investments including the investees financial
statements, analyst reports and industry specific publications, and observes whether there are significant adverse changes in the general market condition where the investees operate, significant deteriorations in their earnings performance, any
significant going concerns issues and subsequent market fluctuation and recovery. The Company also considers its ability and intention to hold these investments for a reasonable period of time that will be sufficient to allow for any anticipated
recovery in the securitys market value. If the decline in fair value is judged to be other than temporary, the cost basis of the individual security is written down to fair value with a charge against earnings. Accordingly, the impairment
losses of certain investments recorded under ROC GAAP were reconciled to increase net income by NT$162 million, NT$1,415 million and nil for the years ended December 31, 2007, 2008 and 2009, respectively, because such impairment losses have
been recognized in prior years under US GAAP.



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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



(c) Adjustments due to change in ownership of investees

When an investee issues additional shares and the Company subscribes for these shares at a percentage higher or lower than its current ownership
percentage in the investee, when the employees of the Companys subsidiaries or equity investees exercise their stock options, or when the convertible bondholders of the Companys subsidiaries or equity investees exercise their conversion
rights, the Companys ownership interest in such subsidiary or equity investee may change. Under ROC GAAP, the change in the Companys proportionate share in the net assets of its investee resulting from the issuance of additional shares
of the investees stock, at the rate not proportionate to its existing equity ownership in such investee, is recorded to the additional paid-in capital and long-term investments account. Under US GAAP, prior to January 1, 2009, a
dilution of ownership interest is recognized as a gain or loss in the consolidated statements of income. On the other hand, the increase in ownership interest is treated as a purchase of additional shares and the difference between the total cost of
the investment and the proportionate share of the fair value of net assets is allocated to goodwill. Effective January 1, 2009, pursuant to ASC 810-10-45, Noncontrolling Interests in a Subsidiary, a change in the Companys ownership
interest that does not result in a change of control shall be accounted for as equity transactions. In December 2009, the Company acquired additional ownership interests in one of its subsidiaries. Under ROC GAAP, the acquisition was accounted for
using the purchase method of accounting, and after reducing the book values of those non-current assets acquired of NT$1,752 million to zero, the Company recognized an extraordinary gain of NT$649 million as the fair value of the net assets acquired
exceeds their cost. However, under US GAAP, the acquisition was accounted for as an equity transaction. The difference between the fair value of the consideration paid and the book value of the noncontrolling interests is adjusted against
stockholders equity. As such, the Company reversed the extraordinary gain and the write-down of non-current assets recognized under ROC GAAP, and recorded additional paid-in capital of NT$2,497 million under US GAAP.

(d) Fair value measurement

ASC
820-10, Fair Value Measurements and Disclosures,defines fair value, provides a framework for measuring fair value under current standards in US GAAP, and requires additional disclosure about fair value measurements. The fair value
hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1) and the lowest priority to unobservable inputs (Level 3). Each level of inputs used are described as following:

Level 1 inputs are unadjusted quoted prices in active markets for identical assets or liabilities that the reporting entity has the ability
to access at the measurement date;



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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



Level 2 inputs are inputs other than quoted prices included within Level 1 that are observable for the
asset or liability, either directly or indirectly, such as quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, and valuations with inputs
which are observable for substantially the full term of the asset or liability. The Companys derivative financial instruments such as interest rate swap and forward contracts are classified as assets carried at fair value through profit or
loss. Their fair values are determined by using the market-based observable inputs including the expected interest forward rate, expected volatility in interest rates, spot exchange rate and swap point. On December 2, 2009, the Company issued
exchangeable bonds which contain a compound derivative instrument, comprising of the exchange option with a fixed foreign exchange rate feature and a call option, is classified as liabilities carried at fair value through profit or loss. The
derivatives are fair valued by using the option pricing model. The valuation model uses the market-based observable inputs including share price, volatility, credit spread, and swap rates. The fair values of the available-for-sale financial assets
with restrictions on the sale or transfer are determined based on identical but unrestricted financial assets quoted market price with discounts for the restrictions that are insignificant.

Level 3 inputs are unobservable inputs that are significant to the fair value of the asset or liability. The fair value measurements of the lands and
buildings are determined based on observable inputs by reference to comparable sales data and published market price with insignificant adjustment owing to their economic lives and local price index. The fair value of the machinery and equipment and
other assets is determined based on observable inputs by reference to comparable sales data and published market price with insignificant adjustment owing to their economic lives, local price index and capacity utilization for the trend in used
semiconductor equipment market. The fair value measurement of the preferred shares measured at cost is determined based on the income approach, considering the investees current and expected operating performance, and changes in the industry
and market prospects. The fair value measurements of our private equity instruments classified as financial assets measured at cost, noncurrent are determined using an analysis of various quantitative and qualitative factors. In performing this
analysis, the inputs include the private companys current operating and future expected performance based on evaluation of the latest available financial statements; changes in the industry and market prospects of the Company based on publicly
available information, and estimated share prices from an income-based multiples approach using comparable companies.

The following table
summarizes the assets and liabilities measured at fair value on a recurring basis at December 31, 2009:



|                                                                    |  |            |  |                                                |  |           |  |        
|------------------------------------------------------------------- |  | ---------- |  | ---------------------------------------------- |  | --------- |  | -------
|                                                                    |  |            |  | Fair value measurements at reportingdate using
|Items                                                               |  | Fair Value |  | Level 1                                        |  | Level 2   |  | Level 3
|                                                                    |  | NT$000    |  | NT$000                                        |  | NT$000   |  | NT$000
|Financial assets at fair value through profit or loss, current      |  | 2,096,091  |  | 1,932,315                                      |  | 163,776   |  |       
|Available-for-sale financial assets, current                        |  | 6,250,694  |  | 6,250,694                                      |  |          |  |       
|Available-for-sale financial assets, noncurrent                     |  | 35,106,942 |  | 33,905,715                                     |  | 1,201,227 |  |       
|Financial liabilities at fair value through profit or loss, current |  | 1,914,879  |  |                                               |  | 1,914,879 |  |       



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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



The following table summarizes the assets measured at fair value on a nonrecurring basis for the year
ended December 31, 2009:



|                                              |  |            |  |                                                      |  |         |  |           |  |              |  
|--------------------------------------------- |  | ---------- |  | ---------------------------------------------------- |  | ------- |  | --------- |  | ------------ | -
|                                              |  |            |  | Fair value measurements duringreporting
period using |  |         | 
|Items                                         |  | Fair Value |  | Level 1                                              |  | Level 2 |  | Level 3   |  | Total Losses |  
|                                              |  | NT$000    |  | NT$000                                              |  | NT$000 |  | NT$000   |  | NT$000      |  
|Financial assets measured at cost, noncurrent |  | 148,623    |  |                                                     |  |        |  | 148,623   |  | (494,091     | )
|Property, plant and equipment                 |  | 3,746,438  |  |                                                     |  |        |  | 3,746,438 |  | (3,331,557   | )
|Other assets                                  |  | 72,362     |  |                                                     |  |        |  | 72,362    |  | (211,274     | )

Pursuant to the provisions of
ASC 360-10, Property, Plant and Equipment, financial assets measured at cost, property, plant and equipment and other assets with a total carrying amount of NT$8,004 million were written down to their fair value, NT$3,967 million, resulting
in an NT$4,037 million impairment charges, included in earnings for the period.

(4) Exchangeable Bond Liabilities

The Company issued a U.S. dollar-denominated exchangeable bond in May 2002 for US$235 million. The underlying securities into which
the bond can be exchanged were a third party entitys common stocks traded on the Taiwan Stock Exchange (denominated in New Taiwan Dollars) or its ADS securities traded on the New York Stock Exchange (denominated in U.S. Dollars). The
exchangeable bond contains a fixed foreign exchange feature, which determined the rate at which the bond would be converted into common stock if exchanged. Also, the terms of the bonds permitted the Company to redeem the bond at the early redemption
price if certain conditions were met. Under ROC GAAP, the exchangeable bond issued prior to January 1, 2006 was entirely recorded as a liability at an amount equal to the proceeds received and any discount or premium to the par value was
amortized to the consolidated statements of income by using the effective interest rate method. Under US GAAP, pursuant to ASC 815-15, Embedded Derivatives, if not closely related to the host contract, the embedded compound derivative
instrument, which comprised a call option and the exchange option with a fixed foreign exchange rate feature, was required to be bifurcated and accounted for at fair value with any changes in fair value recorded to the consolidated statements of
income. The difference between the bond face value and the amount attributed to the embedded derivative was amortized to interest expenses over the term of the bond instrument. Upon the adoption of ROC SFAS 34 and ROC SFAS No. 36,
Financial Instruments: Disclosure and Presentation (ROC SFAS 36) on January 1, 2006, the bifurcation requirement under two GAAPs for the embedded derivative not clearly and closely related to its host contract came to be consistent.
The changes in fair value of the compound derivative resulted in a loss of NT$38 million recognized for the year ended December 31, 2007. The Company also recognized interest expense arising from the amortization of bond discount of NT$11
million for the year ended December 31, 2007. As of December 31, 2007, the fair value of the compound derivative instrument was nil. This exchangeable bond was fully repaid in 2007.



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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



(5) Goodwill

Under ROC GAAP, the fair value of the net assets received is deemed to be the value of the consideration for the acquisition of the remaining interests in
United Semiconductor, United Silicon, UTEK Semiconductor and United Integrated Circuits in January 2000. The acquisition cost of the merger with SiSMC was determined using the market price of the shares exchanged by the Company. Under US GAAP,
before applying ASC 805, Business Combinations, it requires that the securities exchanged be valued based on the market prices a few days before and after the date when the terms of the acquisition are agreed to and announced. The acquisition
was accounted for using the acquisition method of accounting and the purchase price was determined using the market value of the shares exchanged. The difference between the fair value of the shares exchanged and the fair value of the net assets
acquired created goodwill.

Under ROC GAAP, in accordance with an amendment to ROC SFAS 25 and ROC SFAS 35, goodwill ceased to be amortized
and is subject to annual impairment tests or whenever events and circumstances change indicating goodwill may be impaired. Our assessment of impairment includes identifying the goodwill-allocated cash generating unit (CGU), determining the
recoverable amount of CGU by using a discounted cash flow analysis, and ultimately comparing the recoverable amount with the carrying amount of CGU including goodwill. If the CGUs carrying amount is greater than its recoverable amount, an
impairment loss is recognized. The impairment of goodwill cannot be reversed.

Under US GAAP, in accordance with ASC 805-30-30,
Goodwill or Gain from Bargain Purchase, Including Considerations Transferred, and ASC 350-20-35, IntangiblesGoodwill and Other, goodwill ceased to be amortized and is subject to an annual impairment test or more frequently when
events and circumstances indicate a possible impairment may exist. The Company has determined that it has one reporting unit whose fair value is best determined by its quoted market prices on the New York Stock Exchange (for its ADS securities) and
on the Taiwan Stock Exchange (for its common stock). The fair value of the reporting unit is allocated to individual assets and liabilities to derive the fair value of the goodwill assigned to the reporting unit. If the carrying value of the
goodwill is greater than its derived fair value, it is written down to its fair value with an impairment loss reported on the consolidated statements of income. Impairment of goodwill cannot be subsequently reversed.



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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



Pursuant to the impairment test noted above, the derived fair values of our goodwill were below its
carrying values as of December 31, 2007. As such, the Company recognized a goodwill impairment charge of NT$23,761 million for the year ended December 31, 2007. The impairment loss recognized during 2007 was based on the Companys
best estimates, as the Company was still in the process of valuing its assets and liabilities by the issuance of the December 31, 2007 financial statements. The Company completed the hypothetical purchase price allocation in 2008, which
resulted in a complete write-off of its goodwill balance of NT$18,062 million. The adjustments to the 2007 estimate were recorded in 2008 based on the completion of the final evaluation of the impairment loss in that year.

(6) Earnings per Share (EPS)

Under ROC GAAP, basic earnings per share are calculated by dividing net income attributable to common stockholders by the weighted average number of
shares outstanding during the year. Diluted earnings per share are calculated by taking basic earnings per share into consideration plus additional common shares that would have been outstanding if the dilutive share equivalents had been issued. Net
income was also adjusted for the interest and other income or expenses derived from any underlying dilutive share equivalents. The weighted average shares outstanding are adjusted retroactively for stock dividends issued and capitalization of
additional paid-in capital. Anti-dilutive effects are not included in the dilutive EPS calculation. Prior to 2008, the shares distributed for employee bonus are treated as outstanding at the beginning of each period, and the computations of basic
and diluted EPS are adjusted retroactively for all periods to reflect the change in capital structure. Upon the adoption of ARDF Interpretation 97-169, starting from 2008, the shares distributed for employee bonus are treated as outstanding as of
their grant date in the calculation of basic earnings per share, and the computations of basic and diluted EPS are no longer adjusted retroactively. For employee bonus that may be distributed in shares, the number of shares to be distributed is
taken into consideration assuming the distribution will be made entirely in shares when calculating diluted earnings per share.

Under
US GAAP, basic earnings per share are calculated by dividing net income attributable to common stockholders by the weighted average number of shares outstanding during the year. The shares distributed for employee bonus are included in the
computation of basic earnings per share from the grant date. The reciprocal shareholdings held by equity investees are also deducted from the computation of weighted-average number of shares outstanding. Diluted earnings per share are calculated by
taking basic earnings per share into consideration plus additional common shares that would have been outstanding if the dilutive share equivalents had been issued. The net income attributable to common stockholders would also be adjusted for the
interest and other income or expenses derived from any underlying dilutive share equivalents. For employee bonus that may be distributed in shares, the number of shares to be distributed is not taken into consideration until they are granted or the
stockholders approval is obtained. Additionally, the dilutive effect of outstanding employee options generally should be reflected in diluted EPS by application of treasury stock method. The assumed proceeds include the exercise
price of the options, any tax benefits that will be credited on exercise to additional paid-in capital, and the average measured but unrecognized compensation expense during the period. Accordingly, the Company reversed the dilutive adjustment under
ROC GAAP and calculated the dilutive effect of outstanding employee options by applying treasury stock method under US GAAP.



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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



Under ROC GAAP, the Companys capital reduction in 2007 was required to be treated prospectively
for EPS purposes. Under US GAAP, the capital reduction was treated as a reverse stock split with a return of capital, and the return of capital generated a bonus element for EPS purposes. Accordingly, the weighted average number of shares
outstanding for both basic and diluted EPS were adjusted retroactively for 2007 presented as follows:



|                                                           |  |                                      |  
|---------------------------------------------------------- |  | ------------------------------------ | -
|                                                           |  | For the Years EndedDecember 31, 2007 |  
|                                                           |  | In thousands                         |  
|Weighted Average Shares Outstanding  Basic and Diluted    |  |                                      |  
|Weighted average shares prior to capital reduction         |  | 16,118,477                           |  
|Impact of reverse stock split and return of capital        |  | (1,519,039                           | )
|                                                           |  |                                      |  
|Calculated weighted average shares after capital reduction |  | 14,599,438                           |  

The reconciliation of the
numerators and denominators used in computing the basic and diluted earnings per share under US GAAP are as below:



|                                                                         |  |                                      |  |                     |  |                
|------------------------------------------------------------------------ |  | ------------------------------------ |  | ------------------- |  | ---------------
|                                                                         |  | For the year Ended December 31, 2009
|                                                                         |  | Income(Numerator)                    |  | Shares(Denominator) |  | Per-ShareAmount
|                                                                         |  | In thousands                         |  | In thousands        |  | In dollar NT$  
|Net Income attributable to the Company                                   |  | 2,571,988                            |  |                    |  |               
|                                                                         |  |                                      | 
|Basic EPS                                                                |  |                                      |  |                     |  |                
|Income available to common stockholders                                  |  | 2,571,988                            |  | 12,538,016          |  | 0.21           
|                                                                         |  |                                      | 
|Effect of dilutive securities                                            |  |                                      |  |                     |  |                
|Employee stock options                                                   |  |                                     |  | 21,812              |  |               
|                                                                         |  |                                      | 
|Diluted EPS                                                              |  |                                      |  |                     |  |                
|Income attributable to common stockholders including assumed conversions |  | 2,571,988                            |  | 12,559,828          |  | 0.20           

As of December 31, 2009, there
were 572,107 thousand issued and outstanding stock options which were not included in the computation of diluted earnings per share due to their antidilutive effect.



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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



|                                      |  |                                      |   |  |                     |  |                 |  
|------------------------------------- |  | ------------------------------------ | - |  | ------------------- |  | --------------- | -
|                                      |  | For the year Ended December 31, 2008 |  
|                                      |  | Income(Numerator)                    |   |  | Shares(Denominator) |  | Per-ShareAmount |  
|                                      |  | In thousands                         |   |  | In thousands        |  | In dollar NT$   |  
|Net Loss attributable to the Company  |  | (28,955,100                          | ) |  |                    |  |                |  
|                                      |  |                                      |  
|Basic EPS and diluted EPS             |  |                                      |   |  |                     |  |                 |  
|Loss available to common stockholders |  | (28,955,100                          | ) |  | 12,870,072          |  | (2.25           | )

As of December 31, 2008,
there were 709,484 thousand issued and outstanding stock options which were not included in the computation of diluted earnings per share due to their antidilutive effect. The effects of the zero coupon convertible bonds with principal amount
of US$381.4 million that matured on February 15, 2008 were also excluded in the computation of diluted earnings per share due to their antidilutive effect.



|                                      |  |                                      |   |  |                     |  |                 |  
|------------------------------------- |  | ------------------------------------ | - |  | ------------------- |  | --------------- | -
|                                      |  | For the Year Ended December 31, 2007 |  
|                                      |  | Income(Numerator)                    |   |  | Shares(Denominator) |  | Per-ShareAmount |  
|                                      |  | In thousands                         |   |  | In thousands        |  | In dollar NT$   |  
|Net Loss attributable to the Company  |  | (9,264,302                           | ) |  |                    |  |                |  
|                                      |  |                                      |  
|Basic EPS and diluted EPS             |  |                                      |   |  |                     |  |                 |  
|Loss available to common stockholders |  | (9,264,302                           | ) |  | 14,599,438          |  | (0.63           | )

As of December 31, 2007,
there were 1,287,407 thousand issued and outstanding stock options, and zero coupon convertible bonds with a principal amount of US$381.4 million, which were not included in the computation of diluted earnings per share due to their
antidilutive effect.

(7) Treasury Stock and related Disposal

Some of the Companys subsidiaries and investees also hold the Companys stocks as investments. Under ROC GAAP, reciprocal shareholdings held by
subsidiaries, but not equity investees, are recorded as treasury stocks on the Companys books. Under US GAAP, however, reciprocal shareholdings, whether being held by subsidiaries or equity investees, are recorded as treasury stocks on
the Companys books. Therefore, as of December 31, 2008 and 2009, the Company recognized treasury stocks of NT$2,092 million for reciprocal shareholdings held by equity-method investees. The Company also reversed accumulated other
comprehensive income related to unrealized gains (losses) of NT$(7,024) million, nil and NT$1,573 million for the years ended December 31, 2007, 2008 and 2009, respectively, and eliminated investment gains (losses) of NT$155 million, NT$(8,817)
million and nil for the years ended December 31, 2007, 2008 and 2009, respectively.



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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



(8) Stock Dividends

Under ROC GAAP, the stock dividends are recorded at par value and charged to retained earnings. Under US GAAP, if the ratio of distribution is less
than 25 percent of the same kind of outstanding shares, the fair value of the shares issued should be charged to retained earnings. The cumulative effect of reconciling stock dividends decreased retained earnings and increased additional paid-in
capital as of December 31, 2008 by approximately NT$291,285 million. This adjustment of NT$291,285 million remains the same as of December 31, 2009 since no stock dividends were issued during 2009.

(9) Reclassification of Time Deposits

Under ROC GAAP, cash and cash equivalents include time deposits. Under US GAAP, cash equivalents are short-term, highly liquid investments that are
readily convertible to cash with original maturities of three months or less. Thus, time deposits with original maturities of more than three months are classified as cash equivalents under ROC GAAP but should be included in marketable securities
under US GAAP.

(10) Pension

Under ROC GAAP, ROC SFAS 18 requires a minimum pension liability to be measured as the excess of accumulated benefit obligation over the fair value of the
plan assets, and allow the unrecognized items, including prior service costs and credits, gains or losses, and transition obligations or assets, to be reported in disclosure shown as a plans funded status.

Under US GAAP, ASC 715-30, Defined Benefit PlansPension, requires an employer to recognize an asset for a plans overfunded status
or a liability for a plans underfunded status with an offsetting adjustment to accumulated other comprehensive income (AOCI).

The
amounts related to pensions recognized in AOCI, net of tax, excluding amounts related to equity-method investees, are shown as below:



|                                                                                             |  |                         |   |  |                       |  
|-------------------------------------------------------------------------------------------- |  | ----------------------- | - |  | --------------------- | -
|                                                                                             |  | As of December 31, 2009 |  
|                                                                                             |  | Net gain/(loss)         |   |  | Transition obligation |  
|                                                                                             |  | NT$000                 |   |  | NT$000               |  
|The amounts arose during the period                                                          |  | (725,412                | ) |  |                      |  
|                                                                                             |  |                        
|The amounts reclassified as components of net periodic benefit cost                          |  | (21,930                 | ) |  | 28,167                |  
|The amounts recognized in AOCI as of December 31, 2009                                       |  | 104,798                 |   |  | (28,169               | )
|The amounts expected to be recognized as components of net periodic benefit cost during 2010 |  | 6,737                   |   |  | 28,169                |  



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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



(11) Tax Effect of US GAAP Adjustments

Under US GAAP, the income tax expense was NT$2,912 million, NT$896 million and NT$641 million for the years ended December 31, 2007, 2008 and
2009, respectively. Undistributed earnings generated after 1997 are subject to a 10% tax in compliance with the Income Tax Law of the R.O.C.. Under ROC GAAP, the 10% tax on undistributed earnings is recorded as an expense at the time stockholders
resolve that its earnings shall be retained. Under US GAAP, 10% income tax impact is provided in the period the income is earned, assuming that no earnings are distributed. Any reduction in the liability will be recognized when the income is
distributed upon the stockholders approval in the subsequent year. Tax on undistributed earnings may be offset by the Companys available tax credits carried forward, where applicable. As such, the incremental tax accrued on undistributed
earnings may be offset by a corresponding reduction in valuation allowance, where applicable. In 2007, 2008 and 2009, the Company accrued NT$1,051 million, nil and NT$307 million, respectively, for 10% tax on undistributed earnings in Taiwan under
US GAAP. The additional tax expense was offset by a corresponding reduction in the valuation allowance under US GAAP. Further, in 2007, 2008 and 2009, certain subsidiaries incurred NT$102 million, NT$(91) million and NT$(14) million of tax on
undistributed earnings in Taiwan for which no tax credits were available for offset, and the income tax expense was recognized accordingly.

As of December 31, 2009, the Company reported valuation allowance NT$12,137 million to reduce deferred tax assets to an amount that is more likely
than not realizable, representing a decrease of NT$2,081 million from the prior year. The majority of the ROC GAAP to US GAAP reconciliation adjustments are permanent in nature and, therefore, resulted in no incremental impact on income taxes
under US GAAP.

On January 1, 2007, the Company adopted the provisions regarding uncertainty in income tax positions prescribed in ASC
740-10, Income Taxes. ASC 740-10 clarifies that tax position are measured based on the maximum amount that is more likely than not to be realized. Tax positions that are not at least more likely than not to be sustained on their technical
merits are not recognized. Unlike ASC 740-10, ROC SFAS 22 contained no guidance on uniform criteria for an enterprise to recognize and measure potential tax benefits associated with uncertain tax positions.



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UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



A reconciliation of the beginning and ending amounts of unrecognized tax benefits is as
follows:



|                                                               |  |                                 |   |  |      |  
|-------------------------------------------------------------- |  | ------------------------------- | - |  | ---- | -
|                                                               |  | For the year ended December 31, |  
|                                                               |  | 2008                            |   |  | 2009 |  
|                                                               |  | NT$                             |   |  | NT$  |  
|                                                               |  | (In millions)                   |  
|Balance at January 1,                                          |  | 202                             |   |  | 58   |  
|Additions based on tax positions taken during the current year |  | 19                              |   |  | 14   |  
|Reductions related to settlements with taxing authorities      |  | (147                            | ) |  | (39  | )
|Additions (Reductions) for tax positions of prior years        |  | (16                             | ) |  | 27   |  
|                                                               |  |                                 |   |  |      |  
|Balance at December 31,                                        |  | 58                              |   |  | 60   |  
|                                                               |  |                                 |   |  |      |  

None of the aforementioned unrecognized tax benefits, if recognized, would affect the Companys effective tax rate. In
addition, settlement of any of the uncertain tax positions would not require the use of cash as any adjustment would be offset in total by available tax loss carry-forward and/or tax credits in open tax years. Further, the Company is unaware of any
positions for which it is reasonably possible that the total amounts of unrecognized tax benefits will significantly increase or decrease within the next twelve months.

The Company reports interest and penalties relating to unrecognized tax benefits as interest expenses and other expenses, respectively. As of
December 31, 2008 and 2009, no interest or penalties were accrued.

The Company is subject to taxation in Taiwan and other foreign
jurisdictions. As of December 31, 2009, tax years of 2008-2009 are open to Tax Authoritys examination in Taiwan, while in other foreign jurisdictions, years 2004-2009 are open to relevant Tax Authoritys examination.

(12) Gross Profit and Operating Income

Under ROC GAAP, gains and losses from disposal of property, plant and equipment, gains and losses from foreign currency exchange, and impairment losses of
long-lived assets, are presented as non-operating income or expenses in the consolidated statement of income. Under US GAAP, these non-operating income or expenses would be reclassified to be included in the determination of operating income.



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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



(13) Inventory

Under US GAAP, the allocation of fixed production overhead to inventory is based on the normal capacity of the production facilities. Unallocated
overheads are recognized as an expense in the period in which they are incurred. Other items such as abnormal freight, handling costs and amounts of wasted materials are treated as current period charges rather than as a portion of the inventory
cost pursuant to ASC 330, Inventory. Before the adoption of ROC SFAS 10 on January 1, 2009, ROC GAAP did not provide definite guidance for such abnormal items and the use of normal capacity was not mandatory. Accordingly, the Company
recognized an adjustment to the cost of goods sold of NT$362 million for the year ended December 31, 2008. As ROC SFAS 10 and ASC 330 are essentially the same, the inventory difference from 2008 reversed in 2009 when the associated inventory
was sold.

(14) Quasi reorganization

In June 2009, the Company and one of its equity-method investees reduced its additional paid-in-capital by NT$7,037 million and NT$8,134 million,
respectively, to eliminate the accumulated deficit in the preceding years without revaluing the assets of the Company under ROC GAAP. Since all conditions necessary under the US GAAP quasi reorganization rules were not met, the Company reversed
the deficit reclassification under US GAAP.



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UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



Reconciliation of Consolidated Net Income (Loss)



|                                                                     |  |                                 |   |  |             |   |  |            |   |  |            |  
|-------------------------------------------------------------------- |  | ------------------------------- | - |  | ----------- | - |  | ---------- | - |  | ---------- | -
|                                                                     |  | For the year ended December 31, |  
|                                                                     |  | 2007                            |   |  | 2008        |   |  | 2009       |  
|                                                                     |  | NT$000                         |   |  | NT$000     |   |  | NT$000    |   |  | US$000    |  
|                                                                     |  |                                 |   | 
|Net income (loss) attributable to the Company, ROC GAAP              |  | 16,961,762                      |   |  | (22,320,075 | ) |  | 3,874,028  |   |  | 121,253    |  
|Compensation                                                         |  | (2,647,918                      | ) |  | (1,925,008  | ) |  | (802,456   | ) |  | (25,116    | )
|Equity investees                                                     |  | (4,069                          | ) |  | (80,182     | ) |  | (32,247    | ) |  | (1,009     | )
|Investments in debt and equity securities                            |  |                                 |   |  |             |   |  |            |   |  |            |  
|Change in fair value of investments in securities                    |  | 207,286                         |   |  | 15,913      |   |  | (96,591    | ) |  | (3,023     | )
|Impairment of investments in securities                              |  | 162,481                         |   |  | 1,415,330   |   |  |           |   |  |           |  
|Adjustments due to change in ownership of investees                  |  | (51,089                         | ) |  | 54,838      |   |  | (732,643   | ) |  | (22,931    | )
|Goodwill                                                             |  | (23,760,601                     | ) |  | (14,571,104 | ) |  |           |   |  |           |  
|Treasury stock and related disposal                                  |  | (132,154                        | ) |  | 8,817,085   |   |  |           |   |  |           |  
|Inventory                                                            |  |                                |   |  | (361,897    | ) |  | 361,897    |   |  | 11,326     |  
|                                                                     |  |                                 |   |  |             |   |  |            |   |  |            |  
|Net income (loss) attributable to the Company, US GAAP               |  | (9,264,302                      | ) |  | (28,955,100 | ) |  | 2,571,988  |   |  | 80,500     |  
|Add: Net loss attributable to noncontrolling interests, US GAAP      |  | (133,233                        | ) |  | (676,938    | ) |  | (2,207,629 | ) |  | (69,096    | )
|                                                                     |  |                                 |   |  |             |   |  |            |   |  |            |  
|Net income (loss), US GAAP                                           |  | (9,397,535                      | ) |  | (29,632,038 | ) |  | 364,359    |   |  | 11,404     |  
|                                                                     |  |                                 |   |  |             |   |  |            |   |  |            |  
|                                                                     |  |                                 |   | 
|Basic earnings (losses) per share under US GAAP (in dollars)         |  | (0.63                           | ) |  | (2.25       | ) |  | 0.21       |   |  | 0.01       |  
|Diluted earnings (losses) per share under US GAAP (in dollars)       |  | (0.63                           | ) |  | (2.25       | ) |  | 0.20       |   |  | 0.01       |  
|                                                                     |  |                                 |   |  |             |   |  |            |   |  |            |  
|Weighted-average number of shares outstanding-basic (in thousands)   |  | 14,599,438                      |   |  | 12,870,072  |   |  | 12,538,016 |   |  | 12,538,016 |  
|                                                                     |  |                                 |   |  |             |   |  |            |   |  |            |  
|Weighted-average number of shares outstanding-diluted (in thousands) |  | 14,599,438                      |   |  | 12,870,072  |   |  | 12,559,828 |   |  | 12,559,828 |  
|                                                                     |  |                                 |   |  |             |   |  |            |   |  |            |  



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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



Statement of Comprehensive Income (Loss)



|                                                                     |  |                                 |   |  |             |   |  |            |   |  |         |  
|-------------------------------------------------------------------- |  | ------------------------------- | - |  | ----------- | - |  | ---------- | - |  | ------- | -
|                                                                     |  | For the year ended December 31, |  
|                                                                     |  | 2007                            |   |  | 2008        |   |  | 2009       |  
|                                                                     |  | NT$000                         |   |  | NT$000     |   |  | NT$000    |   |  | US$000 |  
|Net income (loss)                                                    |  | (9,397,535                      | ) |  | (29,632,038 | ) |  | 364,359    |   |  | 11,404  |  
|Attributable to:                                                     |  |                                 |   |  |             |   |  |            |   |  |         |  
|the Company                                                          |  | (9,264,302                      | ) |  | (28,955,100 | ) |  | 2,571,988  |   |  | 80,500  |  
|noncontrolling interests                                             |  | (133,233                        | ) |  | (676,938    | ) |  | (2,207,629 | ) |  | (69,096 | )
|                                                                     |  |                                 |   | 
|Other comprehensive income (loss), net of tax                        |  |                                 |   |  |             |   |  |            |   |  |         |  
|Cumulative translation adjustment                                    |  | 343,098                         |   |  | 3,670,946   |   |  | (1,890,175 | ) |  | (59,160 | )
|Attributable to:                                                     |  |                                 |   |  |             |   |  |            |   |  |         |  
|the Company                                                          |  | (43,470                         | ) |  | 2,214,202   |   |  | (1,723,657 | ) |  | (53,948 | )
|noncontrolling interests                                             |  | 386,568                         |   |  | 1,456,744   |   |  | (166,518   | ) |  | (5,212  | )
|                                                                     |  |                                 |   | 
|Unrealized gains (losses) on securities                              |  | (5,511,035                      | ) |  | (27,731,377 | ) |  | 26,982,940 |   |  | 844,536 |  
|Attributable to:                                                     |  |                                 |   |  |             |   |  |            |   |  |         |  
|the Company                                                          |  | (5,511,035                      | ) |  | (27,731,377 | ) |  | 26,982,940 |   |  | 844,536 |  
|noncontrolling interests                                             |  |                                |   |  |            |   |  |           |   |  |        |  
|                                                                     |  |                                 |   | 
|Unrecognized pension cost                                            |  | 676,135                         |   |  | 167,890     |   |  | (606,330   | ) |  | (18,977 | )
|Attributable to:                                                     |  |                                 |   |  |             |   |  |            |   |  |         |  
|the Company                                                          |  | 691,695                         |   |  | 278,486     |   |  | (719,680   | ) |  | (22,525 | )
|noncontrolling interests                                             |  | (15,560                         | ) |  | (110,596    | ) |  | 113,350    |   |  | 3,548   |  
|                                                                     |  |                                 |   |  |             |   |  |            |   |  |         |  
|                                                                     |  |                                 |   | 
|Other comprehensive income (loss)                                    |  | (4,491,802                      | ) |  | (23,892,541 | ) |  | 24,486,435 |   |  | 766,399 |  
|                                                                     |  |                                 |   |  |             |   |  |            |   |  |         |  
|                                                                     |  |                                 |   | 
|Comprehensive income (loss)                                          |  | (13,889,337                     | ) |  | (53,524,579 | ) |  | 24,850,794 |   |  | 777,803 |  
|                                                                     |  |                                 |   |  |             |   |  |            |   |  |         |  
|                                                                     |  |                                 |   | 
|Comprehensive income (loss) attributable to noncontrolling interests |  | 237,775                         |   |  | 669,210     |   |  | (2,260,797 | ) |  | (70,760 | )
|Comprehensive income (loss) attributable to the Company              |  | (14,127,112                     | ) |  | (54,193,789 | ) |  | 27,111,591 |   |  | 848,563 |  



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UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



Statement of Accumulated Other Comprehensive Income (Loss) Attributable to the Company



|                                  |  |                                 |   |  |                                       |   |  |                          |   |  |                                            |  
|--------------------------------- |  | ------------------------------- | - |  | ------------------------------------- | - |  | ------------------------ | - |  | ------------------------------------------ | -
|                                  |  | Cumulativetranslationadjustment |   |  | Unrealizedgains (losses)on securities |   |  | Unrecognizedpension cost |   |  | Accumulatedothercomprehensiveincome (loss) |  
|                                  |  | NT$000                         |   |  | NT$000                               |   |  | NT$000                  |   |  | NT$000                                    |  
|Balance at December 31, 2007      |  | (878,873                        | ) |  | 28,548,737                            |   |  | 521,263                  |   |  | 28,191,127                                 |  
|Other comprehensive income (loss) |  | 2,214,202                       |   |  | (27,731,377                           | ) |  | 278,486                  |   |  | (25,238,689                                | )
|                                  |  |                                 |   |  |                                       |   |  |                          |   |  |                                            |  
|Balance at December 31, 2008      |  | 1,335,329                       |   |  | 817,360                               |   |  | 799,749                  |   |  | 2,952,438                                  |  
|Other comprehensive income (loss) |  | (1,723,657                      | ) |  | 26,982,940                            |   |  | (719,680                 | ) |  | 24,539,603                                 |  
|                                  |  |                                 |   |  |                                       |   |  |                          |   |  |                                            |  
|Balance at December 31, 2009      |  | (388,328                        | ) |  | 27,800,300                            |   |  | 80,069                   |   |  | 27,492,041                                 |  
|                                  |  |                                 |   |  |                                       |   |  |                          |   |  |                                            |  



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##### Table of Contents

UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



Reconciliation of Consolidated Stockholders Equity



|                                                                                              |  |                   |   |  |             |   |  |           |  
|--------------------------------------------------------------------------------------------- |  | ----------------- | - |  | ----------- | - |  | --------- | -
|                                                                                              |  | As of December 31 |  
|                                                                                              |  | 2008              |   |  | 2009        |  
|                                                                                              |  | NT$000           |   |  | NT$000     |   |  | US$000   |  
|Stockholders equity, ROC GAAP                                                                |  | 191,658,294       |   |  | 214,096,256 |   |  | 6,700,978 |  
|Compensation                                                                                  |  | 62,806            |   |  | 64,415      |   |  | 2,016     |  
|Equity investees                                                                              |  | (197,852          | ) |  | (149,798    | ) |  | (4,689    | )
|Investments in debt and equity securities Adjustments due to change in ownership of investees |  |                  |   |  | 1,717,221   |   |  | 53,747    |  
|Goodwill                                                                                      |  | (7,615            | ) |  | (7,615      | ) |  | (238      | )
|Treasury stock and related disposal                                                           |  | (1,195,662        | ) |  | (2,769,095  | ) |  | (86,670   | )
|Pension                                                                                       |  | 933,593           |   |  | 289,107     |   |  | 9,049     |  
|Inventory                                                                                     |  | (361,897          | ) |  |            |   |  |          |  
|                                                                                              |  |                   |   |  |             |   |  |           |  
|Stockholders equity, US GAAP                                                                 |  | 190,891,667       |   |  | 213,240,491 |   |  | 6,674,193 |  
|                                                                                              |  |                   |   |  |             |   |  |           |  

Movements in Consolidated Stockholders Equity in Accordance with US GAAP



|                                                                                                       |  |                                 |   |  |             |   |  |             |   |  |           |  
|------------------------------------------------------------------------------------------------------ |  | ------------------------------- | - |  | ----------- | - |  | ----------- | - |  | --------- | -
|                                                                                                       |  | For the year ended December 31, |  
|                                                                                                       |  | 2007                            |   |  | 2008        |   |  | 2009        |  
|                                                                                                       |  | NT$000                         |   |  | NT$000     |   |  | NT$000     |   |  | US$000   |  
|Balance at January 1,                                                                                  |  | 330,402,222                     |   |  | 253,819,436 |   |  | 190,891,667 |   |  | 5,974,700 |  
|Compensation                                                                                           |  | 2,346,111                       |   |  | 2,202,324   |   |  | 969,277     |   |  | 30,337    |  
|Cash dividends                                                                                         |  | (12,461,529                     | ) |  | (9,382,647  | ) |  |            |   |  |          |  
|Capital reduction                                                                                      |  | (53,910,992                     | ) |  |            |   |  |            |   |  |          |  
|Adjustment of additional paid-in capital and retained earnings accounted for under the equity method   |  | 198,631                         |   |  | 263,934     |   |  | (84,851     | ) |  | (2,656    | )
|Changes in additional paid-in capital for purchases of subsidiary shares from noncontrolling interests |  |                                |   |  |            |   |  | 2,497,039   |   |  | 78,155    |  
|Cumulative translation adjustment on foreign long-term investment                                      |  | (43,470                         | ) |  | 2,214,202   |   |  | (1,722,666  | ) |  | (53,917   | )
|Change in fair value of marketable securities                                                          |  | (6,213,532                      | ) |  | (20,707,489 | ) |  | 28,556,633  |   |  | 893,791   |  
|Treasury stock and related disposal                                                                    |  | 1,570,908                       |   |  | (9,186,760  | ) |  | (3,343,777  | ) |  | (104,657  | )
|Exercise of employees stock options                                                                   |  | 226,455                         |   |  |            |   |  |            |   |  |          |  
|Pension                                                                                                |  | 691,695                         |   |  | 278,486     |   |  | (719,680    | ) |  | (22,525   | )
|Changes in noncontrolling interests                                                                    |  | 277,239                         |   |  | 345,281     |   |  | (6,375,139  | ) |  | (199,535  | )
|Net income (loss) attributable to the Company                                                          |  | (9,264,302                      | ) |  | (28,955,100 | ) |  | 2,571,988   |   |  | 80,500    |  
|                                                                                                       |  |                                 |   |  |             |   |  |             |   |  |           |  
|Balance at December 31,                                                                                |  | 253,819,436                     |   |  | 190,891,667 |   |  | 213,240,491 |   |  | 6,674,193 |  
|                                                                                                       |  |                                 |   |  |             |   |  |             |   |  |           |  



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##### Table of Contents

UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



Summarized US GAAP consolidated balance sheet and statement of operations information is presented
below:



|                        |  |                    |  |             |  |          
|----------------------- |  | ------------------ |  | ----------- |  | ---------
|                        |  | As of December 31,
|                        |  | 2008               |  | 2009       
|                        |  | NT$000            |  | NT$000     |  | US$000  
|                        |  |                    | 
|Current assets          |  | 68,588,471         |  | 102,427,031 |  | 3,205,854
|Non-current assets      |  | 146,401,725        |  | 150,278,758 |  | 4,703,560
|Current liabilities     |  | 13,063,404         |  | 35,265,487  |  | 1,103,772
|Non-current liabilities |  | 11,035,125         |  | 4,199,811   |  | 131,449  



|                                                        |  |                                 |   |  |             |   |  |             |   |  |            |  
|------------------------------------------------------- |  | ------------------------------- | - |  | ----------- | - |  | ----------- | - |  | ---------- | -
|                                                        |  | For the year ended December 31, |  
|                                                        |  | 2007                            |   |  | 2008        |   |  | 2009        |  
|                                                        |  | NT$000                         |   |  | NT$000     |   |  | NT$000     |   |  | US$000    |  
|                                                        |  |                                 |   | 
|Net operating revenues                                  |  | 113,311,298                     |   |  | 96,813,546  |   |  | 91,389,765  |   |  | 2,860,400  |  
|Cost of goods sold                                      |  | (92,012,479                     | ) |  | (85,923,000 | ) |  | (76,209,202 | ) |  | (2,385,265 | )
|Operating loss                                          |  | (19,991,617                     | ) |  | (22,431,492 | ) |  | (2,322,977  | ) |  | (72,707    | )
|Net income (loss)                                       |  | (9,397,535                      | ) |  | (29,632,038 | ) |  | 364,359     |   |  | 11,404     |  
|                                                        |  |                                 |   | 
|Less: Net loss attributable to noncontrolling interests |  | (133,233                        | ) |  | (676,938    | ) |  | (2,207,629  | ) |  | (69,096    | )
|Net income (loss) attributable to the Company           |  | (9,264,302                      | ) |  | (28,955,100 | ) |  | 2,571,988   |   |  | 80,500     |  



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##### Table of Contents

UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



A reconciliation of the significant balance sheet accounts under ROC GAAP to the amounts determined
under US GAAP is as follows:



|                                                                |  |                    |   |  |             |   |  |           |  
|--------------------------------------------------------------- |  | ------------------ | - |  | ----------- | - |  | --------- | -
|                                                                |  | As of December 31, |  
|                                                                |  | 2008               |   |  | 2009        |  
|                                                                |  | NT$000            |   |  | NT$000     |   |  | US$000   |  
|Cash and Cash Equivalents:                                      |  |                    |   |  |             |   |  |           |  
|As reported under ROC GAAP                                      |  | 48,566,649         |   |  | 66,152,960  |   |  | 2,070,515 |  
|Reclassification to marketable securities                       |  | (8,550,000         | ) |  | (11,740,000 | ) |  | (367,449  | )
|                                                                |  |                    |   |  |             |   |  |           |  
|As adjusted under US GAAP                                       |  | 40,016,649         |   |  | 54,412,960  |   |  | 1,703,066 |  
|                                                                |  |                    |   |  |             |   |  |           |  
|                                                                |  |                    |  
|Long-term Investment under cost method, equity method & others: |  |                    |   |  |             |   |  |           |  
|As reported under ROC GAAP                                      |  | 15,983,069         |   |  | 20,119,755  |   |  | 629,726   |  
|Equity Investees                                                |  | 73,366             |   |  | 92,909      |   |  | 2,908     |  
|Treasury stock and related disposal                             |  | (1,195,662         | ) |  | (2,769,095  | ) |  | (86,670   | )
|                                                                |  |                    |   |  |             |   |  |           |  
|As adjusted under US GAAP                                       |  | 14,860,773         |   |  | 17,443,569  |   |  | 545,964   |  
|                                                                |  |                    |   |  |             |   |  |           |  
|                                                                |  |                    |  
|Held-to-maturity financial assets:                              |  |                    |   |  |             |   |  |           |  
|As reported under ROC GAAP                                      |  | 352,645            |   |  |            |   |  |          |  
|Reclassification from cash and cash equivalents                 |  | 8,550,000          |   |  | 11,740,000  |   |  | 367,449   |  
|                                                                |  |                    |   |  |             |   |  |           |  
|As adjusted under US GAAP                                       |  | 8,902,645          |   |  | 11,740,000  |   |  | 367,449   |  
|                                                                |  |                    |   |  |             |   |  |           |  
|                                                                |  |                    |  
|Inventory:                                                      |  |                    |   |  |             |   |  |           |  
|As reported under ROC GAAP                                      |  | 8,117,603          |   |  | 9,141,385   |   |  | 286,115   |  
|Compensation                                                    |  | 62,806             |   |  | 64,415      |   |  | 2,017     |  
|Normal capacity adjustment                                      |  | (361,897           | ) |  |            |   |  |          |  
|                                                                |  |                    |   |  |             |   |  |           |  
|As adjusted under US GAAP                                       |  | 7,818,512          |   |  | 9,205,800   |   |  | 288,132   |  
|                                                                |  |                    |   |  |             |   |  |           |  
|                                                                |  |                    |  
|Property, plant and equipment, net:                             |  |                    |   |  |             |   |  |           |  
|As reported under ROC GAAP                                      |  | 108,409,990        |   |  | 89,596,360  |   |  | 2,804,268 |  
|Ownership change in consolidated entities                       |  |                   |   |  | 1,613,779   |   |  | 50,509    |  
|                                                                |  |                    |   |  |             |   |  |           |  
|As adjusted under US GAAP                                       |  | 108,409,990        |   |  | 91,210,139  |   |  | 2,854,777 |  
|                                                                |  |                    |   |  |             |   |  |           |  



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##### Table of Contents

UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



|                                                           |  |                    |   |  |             |   |  |            |  
|---------------------------------------------------------- |  | ------------------ | - |  | ----------- | - |  | ---------- | -
|                                                           |  | As of December 31, |  
|                                                           |  | 2008               |   |  | 2009        |  
|                                                           |  | NT$000            |   |  | NT$000     |   |  | US$000    |  
|Goodwill:                                                  |  |                    |   |  |             |   |  |            |  
|As reported under ROC GAAP                                 |  | 7,615              |   |  | 7,615       |   |  | 238        |  
|Goodwill due to merger, acquisition and ownership increase |  | 98,778,711         |   |  | 98,778,711  |   |  | 3,091,665  |  
|Accumulated impairment loss on goodwill                    |  | (98,786,326        | ) |  | (98,786,326 | ) |  | (3,091,903 | )
|                                                           |  |                    |   |  |             |   |  |            |  
|As adjusted under US GAAP                                  |  |                   |   |  |            |   |  |           |  
|                                                           |  |                    |   |  |             |   |  |            |  
|                                                           |  |                    |  
|Other assets:                                              |  |                    |   |  |             |   |  |            |  
|As reported under ROC GAAP                                 |  | 2,181,777          |   |  | 1,924,468   |   |  | 60,234     |  
|Ownership change in consolidated entities                  |  |                   |   |  | 72,945      |   |  | 2,283      |  
|                                                           |  |                    |   |  |             |   |  |            |  
|As adjusted under US GAAP                                  |  | 2,181,777          |   |  | 1,997,413   |   |  | 62,517     |  
|                                                           |  |                    |   |  |             |   |  |            |  



F-97



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##### Table of Contents

UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



Cash Flows Information



|                                                                  |  |                                 |   |  |             |   |  |             |   |  |           |  
|----------------------------------------------------------------- |  | ------------------------------- | - |  | ----------- | - |  | ----------- | - |  | --------- | -
|                                                                  |  | For the year ended December 31, |  
|                                                                  |  | 2007                            |   |  | 2008        |   |  | 2009        |  
|                                                                  |  | NT$000                         |   |  | NT$000     |   |  | NT$000     |   |  | US$000   |  
|Cash flows from operating activities, ROC GAAP                    |  | 48,124,267                      |   |  | 45,251,284  |   |  | 32,427,446  |   |  | 1,014,944 |  
|Remuneration paid to directors and supervisors                    |  | (15,494                         | ) |  | (11,939     | ) |  |            |   |  |          |  
|Employee bonus                                                    |  | (2,324,120                      | ) |  | (286,541    | ) |  |            |   |  |          |  
|                                                                  |  |                                 |   |  |             |   |  |             |   |  |           |  
|Cash flows from operating activities, US GAAP                     |  | 45,784,653                      |   |  | 44,952,804  |   |  | 32,427,446  |   |  | 1,014,944 |  
|                                                                  |  |                                 |   | 
|Cash flows from investing activities, ROC GAAP                    |  | (21,844,280                     | ) |  | (11,423,003 | ) |  | (19,217,825 | ) |  | (601,497  | )
|Net effect of time deposits reclassified to marketable securities |  | 32,204,107                      |   |  | (8,550,000  | ) |  | (3,190,000  | ) |  | (99,843   | )
|                                                                  |  |                                 |   |  |             |   |  |             |   |  |           |  
|Cash flows from investing activities, US GAAP                     |  | 10,359,827                      |   |  | (19,973,003 | ) |  | (22,407,825 | ) |  | (701,340  | )
|                                                                  |  |                                 |   | 
|Cash flows from financing activities, ROC GAAP                    |  | (72,693,550                     | ) |  | (34,379,650 | ) |  | 4,943,788   |   |  | 154,735   |  
|Remuneration paid to directors and supervisors                    |  | 15,494                          |   |  | 11,939      |   |  |            |   |  |          |  
|Employee bonus                                                    |  | 2,324,120                       |   |  | 286,541     |   |  |            |   |  |          |  
|                                                                  |  |                                 |   |  |             |   |  |             |   |  |           |  
|Cash flows from financing activities, US GAAP                     |  | (70,353,936                     | ) |  | (34,081,170 | ) |  | 4,943,788   |   |  | 154,735   |  
|                                                                  |  |                                 |   | 
|Net increase (decrease) in cash and cash equivalents, ROC GAAP    |  | (46,175,061                     | ) |  | 888,502     |   |  | 17,586,311  |   |  | 550,432   |  
|Net effect of time deposits reclassified to marketable securities |  | 32,204,107                      |   |  | (8,550,000  | ) |  | (3,190,000  | ) |  | (99,843   | )
|                                                                  |  |                                 |   |  |             |   |  |             |   |  |           |  
|Net decrease in cash and cash equivalents, US GAAP                |  | (13,970,954                     | ) |  | (7,661,498  | ) |  | 14,396,311  |   |  | 450,589   |  
|Cash and cash equivalents at beginning of year, US GAAP           |  | 61,649,101                      |   |  | 47,678,147  |   |  | 40,016,649  |   |  | 1,252,477 |  
|                                                                  |  |                                 |   |  |             |   |  |             |   |  |           |  
|Cash and cash equivalents at end of year, US GAAP                 |  | 47,678,147                      |   |  | 40,016,649  |   |  | 54,412,960  |   |  | 1,703,066 |  
|                                                                  |  |                                 |   |  |             |   |  |             |   |  |           |  



F-98



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##### Table of Contents

UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



Net income attributable to the Company and transfers (to) from noncontrolling interests are as
follows:



|                                                                                                           |  |                                      |   |  |         |  
|---------------------------------------------------------------------------------------------------------- |  | ------------------------------------ | - |  | ------- | -
|                                                                                                           |  | For the year ended December 31, 2009 |  
|                                                                                                           |  | NT$000                              |   |  | US$000 |  
|Net income attributable to the Company                                                                     |  | 2,571,988                            |   |  | 80,500  |  
|                                                                                                           |  |                                      |   |  |         |  
|Transfers (to) from noncontrolling interests                                                               |  |                                      |   |  |         |  
|Increase in the Companys paid-in capital for purchase of UMCJ common shares from noncontrolling interests |  | 2,497,039                            |   |  | 78,155  |  
|                                                                                                           |  |                                     
|Increase in the Companys paid-in capital for UMCJ acquisition of its own common shares                    |  | 7,536                                |   |  | 236     |  
|Decrease in the Companys paid-in capital for UMCJs employees exercise of the stock options               |  | (14,536                              | ) |  | (455    | )
|                                                                                                           |  |                                      |   |  |         |  
|                                                                                                           |  |                                     
|Net transfers from noncontrolling interests                                                                |  | 2,490,039                            |   |  | 77,936  |  
|                                                                                                           |  |                                      |   |  |         |  
|                                                                                                           |  |                                     
|Change from net income attributable to the Company and transfers from noncontrolling interests             |  | 5,062,027                            |   |  | 158,436 |  
|                                                                                                           |  |                                      |   |  |         |  

Concentration of credit risk

The Company designs, develops, manufactures and markets a variety of semiconductor products. Financial instruments that potentially subject the Company to
significant concentrations of credit risk consist principally of cash and cash equivalents and trade accounts and notes receivable. The Company limits its exposure to credit loss by depositing its cash and cash equivalents with high credit quality
financial institutions. The Companys revenues and trade accounts and notes receivable are derived primarily from the sale of production foundry wafers, including memory and logic products and wafers. For the years ended December 31, 2007,
2008, and 2009, the Company distributed its products on a global basis but mainly to divisions in North America (46.93%, 55.41%, and 50.22%, respectively), Asia (44.85%, 34.89%, and 48.78%, respectively), and Europe and others (8.22%, 9.70%, and
1.00%, respectively). The Companys sales are primarily denominated in currencies other than NT Dollars, primarily US Dollars. Two customers revenue represented 14% and 13%, respectively, of the consolidated revenue for the year ended
December 31, 2007, one customers revenue represented 14% of the consolidated revenue for the year ended December 31, 2008, and one customers revenue represented 12%, of the consolidated revenue for the year ended
December 31, 2009. The Company routinely assesses the financial strength of substantially all customers. The Company also requires collateral for certain sales to mitigate the credit risk.



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##### Table of Contents

UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



Summarized Financial Information required by ASC 235-10-S99-1

The following table provides summarized financial information of the Companys equity investees as required by ASC 235-10-S99-1, Notes to
Financial Statements, SEC Materials.

On group basis:



|                                                                                                                              |  |                                 |  |                    |   |  |       
|----------------------------------------------------------------------------------------------------------------------------- |  | ------------------------------- |  | ------------------ | - |  | ------
|                                                                                                                              |  |                                 |  | As of December 31,
|                                                                                                                              |  |                                 |  | 2008               |   |  | 2009  
|                                                                                                                              |  |                                 |  | NT$                |   |  | NT$   
|                                                                                                                              |  |                                 |  | (In millions)     
|Current assets                                                                                                                |  |                                 |  | 14,096             |   |  | 17,660
|Non-current assets                                                                                                            |  |                                 |  | 14,179             |   |  | 25,402
|Current liabilities                                                                                                           |  |                                 |  | 5,697              |   |  | 7,212 
|Long-term liabilities                                                                                                         |  |                                 |  | 673                |   |  | 5,065 
|Redeemable Preferred Stock                                                                                                    |  |                                 |  | 555                |   |  | 574   
|                                                                                                                              | 
|                                                                                                                              |  | For the year ended December 31,
|                                                                                                                              |  | 2007                            |  | 2008               |   |  | 2009  
|                                                                                                                              |  | NT$                             |  | NT$                |   |  | NT$   
|                                                                                                                              |  | (In millions)                  
|Net sales                                                                                                                     |  | 11,936                          |  | 4,967              |   |  | 6,224 
|Gross Profit (loss)                                                                                                           |  | 5,096                           |  | (26,751            | ) |  | 2,173 
|Income (loss) from continuing operations before extraordinary items and cumulative effect of a change in accounting principle |  | 1,847                           |  | (28,478            | ) |  | 612   
|Net income (loss)                                                                                                             |  | 1,655                           |  | (28,498            | ) |  | 615   

On an individual
basis:



|                                                                                                                              |  |                                 |  |                    |   |  |      
|----------------------------------------------------------------------------------------------------------------------------- |  | ------------------------------- |  | ------------------ | - |  | -----
|                                                                                                                              |  |                                 |  | As of December 31,
|                                                                                                                              |  |                                 |  | 2008               |   |  | 2009 
|                                                                                                                              |  |                                 |  | NT$                |   |  | NT$  
|                                                                                                                              |  |                                 |  | (In millions)     
|Current assets                                                                                                                |  |                                 |  | 3,390              |   |  | 7,556
|Current liabilities                                                                                                           |  |                                 |  | 167                |   |  | 2,569
|                                                                                                                              | 
|                                                                                                                              |  | For the year ended December 31,
|                                                                                                                              |  | 2007                            |  | 2008               |   |  | 2009 
|                                                                                                                              |  | NT$                             |  | NT$                |   |  | NT$  
|                                                                                                                              |  | (In millions)                  
|Net sales                                                                                                                     |  | 332                             |  | (1,711             | ) |  | 1,685
|Gross Profit (loss)                                                                                                           |  | 231                             |  | (1,766             | ) |  | 1,609
|Income (loss) from continuing operations before extraordinary items and cumulative effect of a change in accounting principle |  | 231                             |  | (1,766             | ) |  | 1,609
|Net income (loss)                                                                                                             |  | 231                             |  | (1,766             | ) |  | 1,609



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##### Table of Contents

UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS(Continued)



New Accounting Pronouncements

In October 2009, the FASB amended ASC 605, Revenue Recognition. Multiple-deliverable arrangements will be separated in more circumstances than
under existing US GAAP. The amendment establishes a selling price hierarchy for determining the selling price of a deliverable. The selling price used for each deliverable will be based on vendor-specific objective evidence, if available, or
otherwise on third-party evidence; if neither vendor-specific objective evidence nor third-party evidence is available, it will be based on estimated selling price. The amendments replaced the term fair value in the revenue allocation guidance with
selling price, eliminated the residual method of allocation and expanded the disclosure requirements. The amendments are expected to be effective for revenue arrangements entered into or materially modified in fiscal years beginning on or after
June 15, 2010. We do not expect this amendment to have a material impact on our consolidated financial statements.

In December 2009, the
FASB updated ASC 860, Transfers and Servicing, to abolish the concept of a qualifying special-purpose entity and the exception qualifying special-purpose entities. It clarifies the objective to determine whether a transferor and all of the
entities included in the transferors financial statements being presented have surrendered control over the transferred financial assets. That determination must consider the transferors continuing involvement in the transferred
financial asset, including all arrangements or agreements made contemporaneously with, or in contemplation of, the transfer, even if they were not entered into at the time of the transfer. The new pronouncement will be effective for interim and
annual reporting periods beginning after November 15, 2009. The Company is currently evaluating the future impact that will have on our consolidated results of operations or financial condition.

In December 2009, the FASB amended ASC 810, Consolidation, the evaluation criteria to identify the primary beneficiary of a variable interest
entity. Additionally, it requires ongoing reassessments of whether an enterprise is the primary beneficiary of the variable interest entity. The amendment will be effective for interim and annual reporting periods beginning after November 15,
2009. We do not expect this statement to have a material impact on our consolidated financial statements.



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