# EDGAR Filing Document

**Accession Number:** 0001033767
**File Stem:** 0001193125-25-254523
**Filing Date:** 2025-10
**Character Count:** 384702
**Document Hash:** 42ec70bb6b8e4a39cb932d93f6c79e86
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-25-254523.hdr.sgml**: 20251029

**ACCESSION NUMBER**: 0001193125-25-254523

**CONFORMED SUBMISSION TYPE**: 6-K

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20251029

**FILED AS OF DATE**: 20251029

**DATE AS OF CHANGE**: 20251029

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** UNITED MICROELECTRONICS CORP
- **CENTRAL INDEX KEY:** 0001033767
- **STANDARD INDUSTRIAL CLASSIFICATION:** SEMICONDUCTORS & RELATED DEVICES [3674]
- **ORGANIZATION NAME:** 04 Manufacturing
- **EIN:** 000000000
- **STATE OF INCORPORATION:** F5
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 6-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-15128
- **FILM NUMBER:** 251426615

**BUSINESS ADDRESS:**
- **STREET 1:** 8F, NO.68, SEC. 1, NEIHU RD.,
- **CITY:** TAIPEI
- **STATE:** F5
- **ZIP:** 11493
- **BUSINESS PHONE:** 886-2-2658-9168

**MAIL ADDRESS:**
- **STREET 1:** 8F, NO.68, SEC. 1, NEIHU RD.,
- **CITY:** TAIPEI
- **STATE:** F5
- **ZIP:** 11493

**UNITED STATES** 

**SECURITIES AND EXCHANGE COMMISSION** 

**Washington, D.C. 20549** 

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**FORM 6-K** 

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**REPORT OF FOREIGN ISSUER** 

**PURSUANT TO RULE 13a-16 OR 15d-16** 

**OF THE SECURITIES EXCHANGE ACT OF 1934** 

**October 29, 2025** 

**(Commission File Number: 001-15128)** 

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**United Microelectronics Corporation**

**(Translation of registrant's name into English)** 

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**No. 3 Li-Hsin 2nd Road, Hsinchu Science Park, Hsinchu, Taiwan, R.O.C.** 

**(Address of principal executive office)** 

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Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F.

Form 20-F  Form 40-F 

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101 (b) (1): 

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101 (b) (7): 

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**<u>SIGNATURES</u>** 

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereto duly authorized.

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| | |
|:---|:---|
| United Microelectronics Corporation | United Microelectronics Corporation |
| By: | Chitung Liu |
| Name: | Chitung Liu |
| Title: | CFO |

---

Date: October 29, 2025

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**EXHIBIT INDEX** 

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| | |
|:---|:---|
| **Exhibit**  | **Description**  |
| <br>99.1 | <br>[<u>2025Q3ConsolidatedFinancialStatements</u>](umc-ex99_1.htm) |

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## Exhibit 99.1

**UNITED MICROELECTRONICS CORPORATION**

**AND SUBSIDIARIES**

**CONSOLIDATED FINANCIAL STATEMENTS**

**WITH REPORT OF INDEPENDENT AUDITORS**

**FOR THE NINE-MONTH PERIODS ENDED** 

**SEPTEMBER 30, 2025 AND 2024**

Address: No. 3, Li-Hsin 2nd Road, Hsinchu Science Park, Hsinchu, Taiwan, R.O.C.

Telephone: 886-3-578-2258

The reader is advised that these consolidated financial statements have been prepared originally in Chinese. In the event of a conflict between these financial statements and the original Chinese version or difference in interpretation between the two versions, the Chinese language financial statements shall prevail.

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**Review Report of Independent Auditors**

To United Microelectronics Corporation

**Introduction**

We have reviewed the accompanying consolidated balance sheets of United Microelectronics Corporation and its subsidiaries (collectively, "the Company") as of September 30, 2025 and 2024, the related consolidated statements of comprehensive income for the three-month and nine-month periods ended September 30, 2025 and 2024 and consolidated statements of changes in equity and cash flows for the nine-month periods ended September 30, 2025 and 2024, and notes to the consolidated financial statements, including the summary of material accounting policies (together "the consolidated financial statements"). Management is responsible for the preparation and fair presentation of these consolidated financial statements in accordance with the Regulations Governing the Preparation of Financial Reports by Securities Issuers and International Accounting Standard 34, "Interim Financial Reporting" as endorsed and became effective by Financial Supervisory Commission of the Republic of China. Our responsibility is to express a conclusion on these consolidated financial statements based on our reviews.

**Scope of Review**

We conducted our reviews in accordance with the Standard on Review Engagements 2410, "Review of Financial Information Performed by the Independent Auditor of the Entity" of the Republic of China. A review of consolidated financial statements consists of making inquiries, primarily of persons responsible for financial and accounting matters, and applying analytical and other review procedures. A review is substantially less in scope than an audit conducted in accordance with the Standards on Auditing of the Republic of China and consequently does not enable us to obtain assurance that we would become aware of all significant matters that might be identified in an audit. Accordingly, we do not express an audit opinion.

**Conclusion**

Based on our reviews and the review reports of other independent auditors (please refer to the Other Matter paragraph of our report), nothing has come to our attention that causes us to believe that the accompanying consolidated financial statements do not present fairly, in all material respects, the consolidated financial position of the Company as of September 30, 2025 and 2024, and its consolidated financial performance for the three-month and nine-month periods ended September 30, 2025 and 2024, and its consolidated cash flows for the nine-month periods ended September 30, 2025 and 2024, in accordance with the Regulations Governing the Preparation of Financial Reports by Securities Issuers and International Accounting Standard 34, "Interim Financial Reporting" as endorsed and became effective by Financial Supervisory Commission of the Republic of China.

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**Other Matter – Making Reference to the Reviews of Other Independent Auditors**

We did not review the financial statement of certain associates and joint ventures accounted for under the equity method. Our review, insofar as it related to the investments accounted for under the equity method balances of NT$27,221 million and NT$29,347 million, which represented 4.90% and 5.11% of the total consolidated assets as of September 30, 2025 and 2024, respectively, the related shares of profit or loss from the associates and joint ventures in the amount of NT$1,088 million, NT$358 million, NT$1,005 million and NT$1,378 million, which represented 7.43%, 2.16%, 2.94% and 3.01% of the consolidated income from continuing operations before income tax for the three-month and nine-month periods ended September 30, 2025 and 2024, respectively, and the related shares of other comprehensive income (loss) from the associates and joint ventures in the amount of NT$329 million, NT$(65) million, NT$(298) million and NT$274 million, which represented 1.37%, (0.53)%, (1.66)% and 0.60% of the consolidated total comprehensive income (loss) for the three-month and nine-month periods ended September 30, 2025 and 2024, respectively, are based solely on the reports of other independent auditors.

/s/ Yang, Yu-Ni

/s/ Yu, Chien-Ju

Ernst & Young, Taiwan

October 29, 2025

# Notice to Readers
The accompanying consolidated financial statements are intended only to present the consolidated financial position, results of operations and cash flows in accordance with accounting principles and practices generally accepted in the Republic of China and not those of any other jurisdictions. The standards, procedures and practices to review such consolidated financial statements are those generally accepted and applied in the Republic of China.

Accordingly, the accompanying consolidated financial statements and report of independent auditors are not intended for use by those who are not informed about the accounting principles or Standards on Auditing of the Republic of China, and their applications in practice.

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| | | | | |
|:---|:---|:---|:---|:---|
| English Translation of Consolidated Financial Statements Originally Issued in Chinese | English Translation of Consolidated Financial Statements Originally Issued in Chinese | English Translation of Consolidated Financial Statements Originally Issued in Chinese | English Translation of Consolidated Financial Statements Originally Issued in Chinese | English Translation of Consolidated Financial Statements Originally Issued in Chinese |
| UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES | UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES | UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES | UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES | UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES |
| CONSOLIDATED BALANCE SHEETS | CONSOLIDATED BALANCE SHEETS | CONSOLIDATED BALANCE SHEETS | CONSOLIDATED BALANCE SHEETS | CONSOLIDATED BALANCE SHEETS |
| September 30, 2025, December 31, 2024 and September 30, 2024 | September 30, 2025, December 31, 2024 and September 30, 2024 | September 30, 2025, December 31, 2024 and September 30, 2024 | September 30, 2025, December 31, 2024 and September 30, 2024 | September 30, 2025, December 31, 2024 and September 30, 2024 |
| (Expressed in Thousands of New Taiwan Dollars) | (Expressed in Thousands of New Taiwan Dollars) | (Expressed in Thousands of New Taiwan Dollars) | (Expressed in Thousands of New Taiwan Dollars) | (Expressed in Thousands of New Taiwan Dollars) |
|  |  | As of | As of | As of |
| Assets | Notes | September 30, 2025 | December 31, 2024 | September 30, 2024 |
| **Current assets** |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Cash and cash equivalents | 4, 6(1) | $104217382 | $105000226 | $103407426 |
| &nbsp;&nbsp;&nbsp;&nbsp;Financial assets at fair value through profit or loss, current | 4, 5, 6(2) | 609971 | 606018 | 635316 |
| &nbsp;&nbsp;&nbsp;&nbsp;Financial assets at fair value through other comprehensive income, current | 4, 5, 6(3) | 5280436 | 5893377 | 6081214 |
| &nbsp;&nbsp;&nbsp;&nbsp;Financial assets measured at amortized cost, current | 4, 6(4) | 8932294 | 3739224 | 4302460 |
| &nbsp;&nbsp;&nbsp;&nbsp;Contract assets, current | 4, 6(21) | 495539 | 625713 | 730013 |
| &nbsp;&nbsp;&nbsp;&nbsp;Accounts receivable, net | 4, 6(5) | 31642555 | 32723426 | 33043521 |
| &nbsp;&nbsp;&nbsp;&nbsp;Accounts receivable-related parties, net | 4, 7 | 602200 | 620013 | 700896 |
| &nbsp;&nbsp;&nbsp;&nbsp;Other receivables | 4 | 1735076 | 1651494 | 1942631 |
| &nbsp;&nbsp;&nbsp;&nbsp;Current tax assets | 4 | 160884 | 83944 | 63126 |
| &nbsp;&nbsp;&nbsp;&nbsp;Inventories, net | 4, 5, 6(6) | 35180506 | 35782464 | 38090038 |
| &nbsp;&nbsp;&nbsp;&nbsp;Prepayments |  | 2975869 | 2337085 | 3051262 |
| &nbsp;&nbsp;&nbsp;&nbsp;Other current assets | 6(21) | 1020965 | 614900 | 1560425 |
| **&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total current assets** |  | 192853677 | 189677884 | 193608328 |
| **Non-current assets** |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Financial assets at fair value through profit or loss, noncurrent | 4, 5, 6(2) | 17074569 | 17850914 | 18473955 |
| &nbsp;&nbsp;&nbsp;&nbsp;Financial assets at fair value through other comprehensive income, noncurrent | 4, 5, 6(3) | 10532535 | 11315951 | 11335518 |
| &nbsp;&nbsp;&nbsp;&nbsp;Financial assets measured at amortized cost, noncurrent | 4, 6(4) | - | - | 28871 |
| &nbsp;&nbsp;&nbsp;&nbsp;Investments accounted for under the equity method | 4, 6(7), 7 | 44657112 | 43320605 | 46844945 |
| &nbsp;&nbsp;&nbsp;&nbsp;Property, plant and equipment | 4, 6(8), 8 | 265290915 | 279059037 | 276444716 |
| &nbsp;&nbsp;&nbsp;&nbsp;Right-of-use assets | 4, 6(9), 8 | 7493528 | 8039015 | 8057465 |
| &nbsp;&nbsp;&nbsp;&nbsp;Intangible assets | 4, 6(10), 7 | 4456272 | 4154315 | 3853432 |
| &nbsp;&nbsp;&nbsp;&nbsp;Deferred tax assets | 4 | 5299458 | 5210489 | 5363687 |
| &nbsp;&nbsp;&nbsp;&nbsp;Prepayment for equipment |  | 2174166 | 4932505 | 3726039 |
| &nbsp;&nbsp;&nbsp;&nbsp;Refundable deposits | 8 | 1763650 | 1992400 | 1957916 |
| &nbsp;&nbsp;&nbsp;&nbsp;Other noncurrent assets-others |  | 3799540 | 4647562 | 4597565 |
| **&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total non-current assets** |  | 362541745 | 380522793 | 380684109 |
| **Total assets** |  | $555395422 | $570200677 | $574292437 |
| (continued) | (continued) | (continued) | (continued) | (continued) |

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| | | | | |
|:---|:---|:---|:---|:---|
| English Translation of Consolidated Financial Statements Originally Issued in Chinese | English Translation of Consolidated Financial Statements Originally Issued in Chinese | English Translation of Consolidated Financial Statements Originally Issued in Chinese | English Translation of Consolidated Financial Statements Originally Issued in Chinese | English Translation of Consolidated Financial Statements Originally Issued in Chinese |
| UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES | UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES | UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES | UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES | UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES |
| CONSOLIDATED BALANCE SHEETS | CONSOLIDATED BALANCE SHEETS | CONSOLIDATED BALANCE SHEETS | CONSOLIDATED BALANCE SHEETS | CONSOLIDATED BALANCE SHEETS |
| September 30, 2025, December 31, 2024 and September 30, 2024 | September 30, 2025, December 31, 2024 and September 30, 2024 | September 30, 2025, December 31, 2024 and September 30, 2024 | September 30, 2025, December 31, 2024 and September 30, 2024 | September 30, 2025, December 31, 2024 and September 30, 2024 |
| (Expressed in Thousands of New Taiwan Dollars) | (Expressed in Thousands of New Taiwan Dollars) | (Expressed in Thousands of New Taiwan Dollars) | (Expressed in Thousands of New Taiwan Dollars) | (Expressed in Thousands of New Taiwan Dollars) |
|  |  | As of | As of | As of |
| Liabilities and Equity | Notes | September 30, 2025 | December 31, 2024 | September 30, 2024 |
| **Current liabilities** |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Short-term loans | 6(11), 6(28) | $16060185 | $8515000 | $17068900 |
| &nbsp;&nbsp;&nbsp;&nbsp;Financial liabilities at fair value through profit or loss, current | 4, 6(12) | 314543 | 901000 | 1086488 |
| &nbsp;&nbsp;&nbsp;&nbsp;Contract liabilities, current | 4, 6(21) | 2969526 | 2200561 | 3006728 |
| &nbsp;&nbsp;&nbsp;&nbsp;Accounts payable |  | 8037897 | 7633427 | 9009630 |
| &nbsp;&nbsp;&nbsp;&nbsp;Other payables | 4, 6(20), 6(22), 7 | 20287965 | 24103882 | 21314553 |
| &nbsp;&nbsp;&nbsp;&nbsp;Payables on equipment |  | 11571802 | 10522489 | 14888964 |
| &nbsp;&nbsp;&nbsp;&nbsp;Current tax liabilities | 4 | 1307320 | 3365012 | 1821780 |
| &nbsp;&nbsp;&nbsp;&nbsp;Lease liabilities, current | 4, 6(9), 6(28) | 644247 | 636357 | 628299 |
| &nbsp;&nbsp;&nbsp;&nbsp;Current portion of long-term liabilities | 4, 6(13), 6(14), 6(28) | 14085594 | 10994998 | 13786620 |
| &nbsp;&nbsp;&nbsp;&nbsp;Other current liabilities | 4, 6(16), 6(17), 6(18), 6(28) | 6996706 | 6387463 | 5662645 |
| **&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total current liabilities** |  | 82275785 | 75260189 | 88274607 |
| **Non-current liabilities** |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Contract liabilities, noncurrent | 4, 6(21) | 474880 | 459620 | 443800 |
| &nbsp;&nbsp;&nbsp;&nbsp;Bonds payable | 4, 6(13), 6(28) | 29278358 | 24584979 | 24583647 |
| &nbsp;&nbsp;&nbsp;&nbsp;Long-term loans | 6(14), 6(28) | 24479252 | 30948500 | 33550489 |
| &nbsp;&nbsp;&nbsp;&nbsp;Deferred tax liabilities | 4 | 6150679 | 7810834 | 7697698 |
| &nbsp;&nbsp;&nbsp;&nbsp;Lease liabilities, noncurrent | 4, 6(9), 6(28) | 5449340 | 5782659 | 5882282 |
| &nbsp;&nbsp;&nbsp;&nbsp;Net defined benefit liabilities, noncurrent | 4 | 1024785 | 1432249 | 1633382 |
| &nbsp;&nbsp;&nbsp;&nbsp;Guarantee deposits | 6(28) | 39652017 | 41953360 | 41009871 |
| &nbsp;&nbsp;&nbsp;&nbsp;Other noncurrent liabilities-others | 4, 6(16), 6(18) | 5410132 | 3783283 | 2725795 |
| **&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total non-current liabilities** |  | 111919443 | 116755484 | 117526964 |
| **&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total liabilities** |  | 194195228 | 192015673 | 205801571 |
| **Equity attributable to the parent company** |  |  |  |  |
| **&nbsp;&nbsp;&nbsp;&nbsp;Capital** | 4, 6(19) |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Common stock |  | 125563274 | 125607164 | 125284664 |
| **&nbsp;&nbsp;&nbsp;&nbsp;Additional paid-in capital** | 4, 6(19), 6(20) |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Premiums |  | 4977376 | 4960958 | 4783516 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Treasury stock transactions |  | 4531955 | 4531955 | 4531955 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The differences between the fair value of the consideration paid or received from acquiring or<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;disposing subsidiaries and the carrying amounts of the subsidiaries |  | 3039275 | 3039275 | 3039275 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Recognition of changes in subsidiaries' ownership |  | 18450 | 23654 | 14811 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Share of changes in net assets of associates and joint ventures accounted for using equity method |  | 548351 | 328679 | 340086 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Restricted stock for employees |  | 1856062 | 1877097 | 1610972 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Other |  | 20419 | 20858 | 21382 |
| **&nbsp;&nbsp;&nbsp;&nbsp;Retained earnings** | 6(19) |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Legal reserve |  | 41466099 | 36727862 | 36727862 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Unappropriated earnings |  | 181240637 | 190120643 | 181453232 |
| **&nbsp;&nbsp;&nbsp;&nbsp;Other components of equity** | 4, 6(20) |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Exchange differences on translation of foreign operations |  | (12621178) | 696785 | (1952212) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Unrealized gains or losses on financial assets measured at fair value through other comprehensive income |  | 11738541 | 11985495 | 13534894 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Unearned employee compensation |  | (1319042) | (1992034) | (1186735) |
| **&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total equity attributable to the parent company** |  | 361060219 | 377928391 | 368203702 |
| **Non-controlling interests** | 6(19) | 139975 | 256613 | 287164 |
| **&nbsp;&nbsp;&nbsp;&nbsp;Total equity** |  | 361200194 | 378185004 | 368490866 |
| **Total liabilities and equity** |  | $555395422 | $570200677 | $574292437 |
| The accompanying notes are an integral part of the consolidated financial statements. | The accompanying notes are an integral part of the consolidated financial statements. | The accompanying notes are an integral part of the consolidated financial statements. | The accompanying notes are an integral part of the consolidated financial statements. | The accompanying notes are an integral part of the consolidated financial statements. |

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| | | | | | |
|:---|:---|:---|:---|:---|:---|
| English Translation of Consolidated Financial Statements Originally Issued in Chinese | English Translation of Consolidated Financial Statements Originally Issued in Chinese | English Translation of Consolidated Financial Statements Originally Issued in Chinese | English Translation of Consolidated Financial Statements Originally Issued in Chinese | English Translation of Consolidated Financial Statements Originally Issued in Chinese | English Translation of Consolidated Financial Statements Originally Issued in Chinese |
| UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES | UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES | UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES | UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES | UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES | UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES |
| CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME | CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME | CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME | CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME | CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME | CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME |
| For the three-month and nine-month periods ended September 30, 2025 and 2024 | For the three-month and nine-month periods ended September 30, 2025 and 2024 | For the three-month and nine-month periods ended September 30, 2025 and 2024 | For the three-month and nine-month periods ended September 30, 2025 and 2024 | For the three-month and nine-month periods ended September 30, 2025 and 2024 | For the three-month and nine-month periods ended September 30, 2025 and 2024 |
| (Expressed in Thousands of New Taiwan Dollars, Except for Earnings per Share) | (Expressed in Thousands of New Taiwan Dollars, Except for Earnings per Share) | (Expressed in Thousands of New Taiwan Dollars, Except for Earnings per Share) | (Expressed in Thousands of New Taiwan Dollars, Except for Earnings per Share) | (Expressed in Thousands of New Taiwan Dollars, Except for Earnings per Share) | (Expressed in Thousands of New Taiwan Dollars, Except for Earnings per Share) |
|  |  | For the three-month periods ended September 30, | For the three-month periods ended September 30, | For the nine-month periods ended September 30, | For the nine-month periods ended September 30, |
|  | Notes | 2025 | 2024 | 2025 | 2024 |
| **Operating revenues** | 4, 6(21), 7 | $59127040 | $60485085 | $175743654 | $171916474 |
| **Operating costs** | 4, 6(6), 6(10), 6(15), <br>6(20), 6(21), 6(22), 7 | (41503722) | (40056240) | (125795593) | (114604975) |
| **Gross profit** |  | 17623318 | 20428845 | 49948061 | 57311499 |
| **Operating expenses** | 4, 6(5), 6(10), 6(15), 6(20), 6(22), 7 |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Sales and marketing expenses |  | (628043) | (716505) | (1838496) | (2078144) |
| &nbsp;&nbsp;&nbsp;&nbsp;General and administrative expenses |  | (1714518) | (1820441) | (4939320) | (5326857) |
| &nbsp;&nbsp;&nbsp;&nbsp;Research and development expenses |  | (4630616) | (4021752) | (12787998) | (11281797) |
| &nbsp;&nbsp;&nbsp;&nbsp;Expected credit impairment gains (losses) |  | 2 | (121) | 2406 | 69133 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Subtotal |  | (6973175) | (6558819) | (19563408) | (18617665) |
| Net other operating income and expenses | 4, 6(16), 6(23) | 467493 | 229607 | 1338596 | 961732 |
| **Operating income** |  | 11117636 | 14099633 | 31723249 | 39655566 |
| **Non-operating income and expenses** |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Interest income | 4 | 520899 | 791468 | 1759113 | 2921979 |
| &nbsp;&nbsp;&nbsp;&nbsp;Other income | 4 | 760354 | 786626 | 1188968 | 1200428 |
| &nbsp;&nbsp;&nbsp;&nbsp;Other gains and losses | 4, 6(24) | 1198962 | 1183221 | 112495 | 561618 |
| &nbsp;&nbsp;&nbsp;&nbsp;Finance costs | 6(24) | (454128) | (487223) | (1213456) | (1297052) |
| &nbsp;&nbsp;&nbsp;&nbsp;Share of profit or loss of associates and joint ventures | 4, 6(7) | 1250411 | 842760 | 1488765 | 2210894 |
| &nbsp;&nbsp;&nbsp;&nbsp;Exchange gain, net | 4 | 249773 | - | - | 451966 |
| &nbsp;&nbsp;&nbsp;&nbsp;Exchange loss, net | 4 | - | (652297) | (914678) | - |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Subtotal |  | 3526271 | 2464555 | 2421207 | 6049833 |
| **Income from continuing operations before income tax** |  | 14643907 | 16564188 | 34144456 | 45705399 |
| **Income tax benefit (expense)** | 4, 6(26) | 300310 | (2122430) | (2609018) | (7058832) |
| **Net income** |  | 14944217 | 14441758 | 31535438 | 38646567 |
| **Other comprehensive income (loss)** | 6(25) |  |  |  |  |
| **Items that will not be reclassified subsequently to profit or loss** |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Unrealized gains or losses from equity instruments investments measured at<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;fair value through other comprehensive income | 4 | (1251557) | (1719254) | (1385697) | (331922) |
| &nbsp;&nbsp;&nbsp;&nbsp;Share of other comprehensive income (loss) of associates and joint ventures <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;which will not be reclassified subsequently to profit or loss |  | 1757268 | (614105) | 1179449 | 646834 |
| &nbsp;&nbsp;&nbsp;&nbsp;Income tax related to items that will not be reclassified subsequently | 4, 6(26) | (112489) | (18694) | (56208) | 21337 |
| **Items that may be reclassified subsequently to profit or loss** |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Exchange differences on translation of foreign operations |  | 8414143 | 590295 | (13125780) | 6571602 |
| &nbsp;&nbsp;&nbsp;&nbsp;Share of other comprehensive income (loss) of associates and joint ventures<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;which may be reclassified subsequently to profit or loss |  | 293026 | (46885) | (380212) | 279124 |
| &nbsp;&nbsp;&nbsp;&nbsp;Income tax related to items that may be reclassified subsequently | 4, 6(26) | (95121) | (490008) | 187910 | (156421) |
| **Total other comprehensive income (loss)** |  | 9005270 | (2298651) | (13580538) | 7030554 |
| **Total comprehensive income (loss)** |  | $23949487 | $12143107 | $17954900 | $45677121 |
| **&nbsp;&nbsp;&nbsp;&nbsp;Net income (loss) attributable to:** |  |  |  |  |  |
| **&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Shareholders of the parent** |  | $14982060 | $14472042 | $31661331 | $38714347 |
| **&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Non-controlling interests** |  | (37843) | (30284) | (125893) | (67780) |
|  |  | $14944217 | $14441758 | $31535438 | $38646567 |
| **&nbsp;&nbsp;&nbsp;&nbsp;Comprehensive income (loss) attributable to:** |  |  |  |  |  |
| **&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Shareholders of the parent** |  | $23987246 | $12173377 | $18080912 | $45744829 |
| **&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Non-controlling interests** |  | (37759) | (30270) | (126012) | (67708) |
|  |  | $23949487 | $12143107 | $17954900 | $45677121 |
| **&nbsp;&nbsp;&nbsp;&nbsp;Earnings per share (NTD)** | 4, 6(27) |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Earnings per share-basic |  | $1.20 | $1.16 | $2.54 | $3.12 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Earnings per share-diluted |  | $1.19 | $1.15 | $2.52 | $3.08 |
| The accompanying notes are an integral part of the consolidated financial statements. | The accompanying notes are an integral part of the consolidated financial statements. | The accompanying notes are an integral part of the consolidated financial statements. | The accompanying notes are an integral part of the consolidated financial statements. | The accompanying notes are an integral part of the consolidated financial statements. | The accompanying notes are an integral part of the consolidated financial statements. |

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| | | | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| English Translation of Consolidated Financial Statements Originally Issued in Chinese | English Translation of Consolidated Financial Statements Originally Issued in Chinese | English Translation of Consolidated Financial Statements Originally Issued in Chinese | English Translation of Consolidated Financial Statements Originally Issued in Chinese | English Translation of Consolidated Financial Statements Originally Issued in Chinese | English Translation of Consolidated Financial Statements Originally Issued in Chinese | English Translation of Consolidated Financial Statements Originally Issued in Chinese | English Translation of Consolidated Financial Statements Originally Issued in Chinese | English Translation of Consolidated Financial Statements Originally Issued in Chinese | English Translation of Consolidated Financial Statements Originally Issued in Chinese | English Translation of Consolidated Financial Statements Originally Issued in Chinese | English Translation of Consolidated Financial Statements Originally Issued in Chinese | English Translation of Consolidated Financial Statements Originally Issued in Chinese |
| UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES | UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES | UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES | UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES | UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES | UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES | UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES | UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES | UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES | UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES | UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES | UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES | UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES |
| CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY | CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY | CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY | CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY | CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY | CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY | CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY | CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY | CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY | CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY | CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY | CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY | CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY |
| For the nine-month periods ended September 30, 2025 and 2024 | For the nine-month periods ended September 30, 2025 and 2024 | For the nine-month periods ended September 30, 2025 and 2024 | For the nine-month periods ended September 30, 2025 and 2024 | For the nine-month periods ended September 30, 2025 and 2024 | For the nine-month periods ended September 30, 2025 and 2024 | For the nine-month periods ended September 30, 2025 and 2024 | For the nine-month periods ended September 30, 2025 and 2024 | For the nine-month periods ended September 30, 2025 and 2024 | For the nine-month periods ended September 30, 2025 and 2024 | For the nine-month periods ended September 30, 2025 and 2024 | For the nine-month periods ended September 30, 2025 and 2024 | For the nine-month periods ended September 30, 2025 and 2024 |
| (Expressed in Thousands of New Taiwan Dollars) | (Expressed in Thousands of New Taiwan Dollars) | (Expressed in Thousands of New Taiwan Dollars) | (Expressed in Thousands of New Taiwan Dollars) | (Expressed in Thousands of New Taiwan Dollars) | (Expressed in Thousands of New Taiwan Dollars) | (Expressed in Thousands of New Taiwan Dollars) | (Expressed in Thousands of New Taiwan Dollars) | (Expressed in Thousands of New Taiwan Dollars) | (Expressed in Thousands of New Taiwan Dollars) | (Expressed in Thousands of New Taiwan Dollars) | (Expressed in Thousands of New Taiwan Dollars) | (Expressed in Thousands of New Taiwan Dollars) |
|  |  | Equity Attributable to the Parent Company | Equity Attributable to the Parent Company | Equity Attributable to the Parent Company | Equity Attributable to the Parent Company | Equity Attributable to the Parent Company | Equity Attributable to the Parent Company | Equity Attributable to the Parent Company | Equity Attributable to the Parent Company | Equity Attributable to the Parent Company |  |  |
|  |  | Capital |  | Retained Earnings | Retained Earnings | Retained Earnings | Other Components of Equity | Other Components of Equity | Other Components of Equity |  |  |  |
|  | Notes | Common Stock | Additional<br> Paid-in Capital | Legal Reserve | Special Reserve | Unappropriated <br>Earnings | Exchange Differences on Translation of Foreign Operations | Unrealized<br>Gains or Losses<br>on Financial<br>Assets Measured<br>at Fair Value<br>through Other<br>Comprehensive<br>Income | Unearned Employee Compensation | Total | Non-<br>Controlling <br>Interests | Total Equity |
| Balance as of January 1, 2024 | 6(19) | $125298222 | $14324773 | $30472125 | $2734058 | $183847052 | $(8646445) | $13199259 | $(1991331) | $359237713 | $340859 | $359578572 |
| &nbsp;&nbsp;&nbsp;&nbsp;Appropriation and distribution of 2023 retained earnings | 6(19) |  |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Legal reserve |  | - | - | 6255737 | - | (6255737) | - | - | - | - | - | - |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Special reserve reversed |  | - | - | - | (2734058) | 2734058 | - | - | - | - | - | - |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Cash dividends |  | - | - | - | - | (37587102) | - | - | - | (37587102) | - | (37587102) |
| &nbsp;&nbsp;&nbsp;&nbsp;Net income (loss) for the nine-month period ended September 30, 2024 | 6(19) | - | - | - | - | 38714347 | - | - | - | 38714347 | (67780) | 38646567 |
| &nbsp;&nbsp;&nbsp;&nbsp;Other comprehensive income (loss), for the nine-month period ended September 30, 2024 | 6(19), 6(25) | - | - | - | - | 614 | 6694233 | 335635 | - | 7030482 | 72 | 7030554 |
| &nbsp;&nbsp;&nbsp;&nbsp;Total comprehensive income (loss) |  | - | - | - | - | 38714961 | 6694233 | 335635 | - | 45744829 | (67708) | 45677121 |
| &nbsp;&nbsp;&nbsp;&nbsp;Share-based payment transaction | 4, 6(19), 6(20) | (13558) | 22854 | - | - | - | - | - | 804596 | 813892 | 2046 | 815938 |
| &nbsp;&nbsp;&nbsp;&nbsp;Share of changes in net assets of associates and joint ventures accounted for<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;using equity method |  | - | (18762) | - | - | - | - | - | - | (18762) | - | (18762) |
| &nbsp;&nbsp;&nbsp;&nbsp;Changes in subsidiaries' ownership | 4, 6(19) | - | 11146 | - | - | - | - | - | - | 11146 | (2074) | 9072 |
| &nbsp;&nbsp;&nbsp;&nbsp;Non-Controlling Interests | 6(19) | - | - | - | - | - | - | - | - | - | 14041 | 14041 |
| &nbsp;&nbsp;&nbsp;&nbsp;Others |  | - | 1986 | - | - | - | - | - | - | 1986 | - | 1986 |
| Balance as of September 30, 2024 | 6(19) | $125284664 | $14341997 | $36727862 | $- | $181453232 | $(1952212) | $13534894 | $(1186735) | $368203702 | $287164 | $368490866 |
| Balance as of January 1, 2025 | 6(19) | $125607164 | $14782476 | $36727862 | $- | $190120643 | $696785 | $11985495 | $(1992034) | $377928391 | $256613 | $378185004 |
| &nbsp;&nbsp;&nbsp;&nbsp;Appropriation and distribution of 2024 retained earnings | 6(19) |  |  |  |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Legal reserve |  | - | - | 4738237 | - | (4738237) | - | - | - | - | - | - |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Cash dividends |  | - | - | - | - | (35787598) | - | - | - | (35787598) | - | (35787598) |
| &nbsp;&nbsp;&nbsp;&nbsp;Net income (loss) for the nine-month period ended September 30, 2025 | 6(19) | - | - | - | - | 31661331 | - | - | - | 31661331 | (125893) | 31535438 |
| &nbsp;&nbsp;&nbsp;&nbsp;Other comprehensive income (loss), for the nine-month period ended September 30, 2025 | 6(19), 6(25) | - | - | - | - | - | (13317963) | (262456) | - | (13580419) | (119) | (13580538) |
| &nbsp;&nbsp;&nbsp;&nbsp;Total comprehensive income (loss) |  | - | - | - | - | 31661331 | (13317963) | (262456) | - | 18080912 | (126012) | 17954900 |
| &nbsp;&nbsp;&nbsp;&nbsp;Share-based payment transaction | 4, 6(19), 6(20) | (43890) | (5060) | - | - | - | - | - | 672992 | 624042 | 1465 | 625507 |
| &nbsp;&nbsp;&nbsp;&nbsp;Share of changes in net assets of associates and joint ventures accounted for<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;using equity method |  | - | 219671 | - | - | (15502) | - | 15502 | - | 219671 | - | 219671 |
| &nbsp;&nbsp;&nbsp;&nbsp;Changes in subsidiaries' ownership | 4, 6(19) | - | (4761) | - | - | - | - | - | - | (4761) | (7152) | (11913) |
| &nbsp;&nbsp;&nbsp;&nbsp;Non-Controlling Interests | 6(19) | - | - | - | - | - | - | - | - | - | 15061 | 15061 |
| &nbsp;&nbsp;&nbsp;&nbsp;Others |  | - | (438) | - | - | - | - | - | - | (438) | - | (438) |
| Balance as of September 30, 2025 | 6(19) | $125563274 | $14991888 | $41466099 | $- | $181240637 | $(12621178) | $11738541 | $(1319042) | $361060219 | $139975 | $361200194 |
| The accompanying notes are an integral part of the consolidated financial statements. | The accompanying notes are an integral part of the consolidated financial statements. | The accompanying notes are an integral part of the consolidated financial statements. | The accompanying notes are an integral part of the consolidated financial statements. | The accompanying notes are an integral part of the consolidated financial statements. | The accompanying notes are an integral part of the consolidated financial statements. | The accompanying notes are an integral part of the consolidated financial statements. | The accompanying notes are an integral part of the consolidated financial statements. | The accompanying notes are an integral part of the consolidated financial statements. | The accompanying notes are an integral part of the consolidated financial statements. | The accompanying notes are an integral part of the consolidated financial statements. | The accompanying notes are an integral part of the consolidated financial statements. | The accompanying notes are an integral part of the consolidated financial statements. |

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| | | |
|:---|:---|:---|
| English Translation of Consolidated Financial Statements Originally Issued in Chinese | English Translation of Consolidated Financial Statements Originally Issued in Chinese | English Translation of Consolidated Financial Statements Originally Issued in Chinese |
| UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES | UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES | UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES |
| CONSOLIDATED STATEMENTS OF CASH FLOWS | CONSOLIDATED STATEMENTS OF CASH FLOWS | CONSOLIDATED STATEMENTS OF CASH FLOWS |
| For the nine-month periods ended September 30, 2025 and 2024 | For the nine-month periods ended September 30, 2025 and 2024 | For the nine-month periods ended September 30, 2025 and 2024 |
| (Expressed in Thousands of New Taiwan Dollars) | (Expressed in Thousands of New Taiwan Dollars) | (Expressed in Thousands of New Taiwan Dollars) |
|  | For the nine-month periods ended September 30, | For the nine-month periods ended September 30, |
|  | 2025 | 2024 |
| Cash flows from operating activities: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Net income before tax | $34144456 | $45705399 |
| &nbsp;&nbsp;&nbsp;&nbsp;Adjustments to reconcile net income before tax to net cash provided by operating activities: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Depreciation | 41534788 | 32802022 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Amortization | 2094182 | 1902923 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Expected credit impairment gains | (2406) | (69133) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Net gain of financial assets and liabilities at fair value through profit or loss | (97300) | (541274) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Interest expense | 1143521 | 1220348 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Interest income | (1759113) | (2921979) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Dividend income | (1147066) | (1154698) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Share-based payment | 631223 | 825010 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Share of profit of associates and joint ventures | (1488765) | (2210894) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Gain on disposal of property, plant and equipment | (87732) | (58211) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Gain on disposal of subsidiary | - | (352) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Gain on disposal of investments accounted for under the equity method | (15201) | - |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Exchange loss (gain) on financial assets and liabilities | (1545920) | 557468 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Gain on lease modification | (3) | (8599) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Amortization of deferred government grants | (1096347) | (642100) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Income and expense adjustments | 38163861 | 29700531 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Changes in operating assets and liabilities: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Financial assets and liabilities at fair value through profit or loss | (39079) | (458678) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Contract assets | 125967 | 12181 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Accounts receivable | 499545 | (3642313) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Other receivables | (158161) | 435490 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Inventories | (140492) | (1940130) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Prepayments | 147733 | (437077) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Other current assets | 21362 | (882176) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Contract fulfillment costs | (449592) | 210304 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Contract liabilities | 907769 | 227501 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Accounts payable | 582281 | 1370624 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Other payables | (3590913) | (3837190) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Other current liabilities | 396774 | 296937 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Net defined benefit liabilities | (407464) | (571703) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Other noncurrent liabilities-others | 8426 | 4008 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Cash generated from operations | 70212473 | 66193708 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Interest received | 1765425 | 3293270 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Dividend received | 1749691 | 2133338 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Interest paid | (806463) | (886493) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Income tax paid | (6059826) | (9838955) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Net cash provided by operating activities | 66861300 | 60894868 |
| (continued) | (continued) | (continued) |

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| | | |
|:---|:---|:---|
| English Translation of Consolidated Financial Statements Originally Issued in Chinese | English Translation of Consolidated Financial Statements Originally Issued in Chinese | English Translation of Consolidated Financial Statements Originally Issued in Chinese |
| UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES | UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES | UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES |
| CONSOLIDATED STATEMENTS OF CASH FLOWS | CONSOLIDATED STATEMENTS OF CASH FLOWS | CONSOLIDATED STATEMENTS OF CASH FLOWS |
| For the nine-month periods ended September 30, 2025 and 2024 | For the nine-month periods ended September 30, 2025 and 2024 | For the nine-month periods ended September 30, 2025 and 2024 |
| (Expressed in Thousands of New Taiwan Dollars) | (Expressed in Thousands of New Taiwan Dollars) | (Expressed in Thousands of New Taiwan Dollars) |
|  | For the nine-month periods ended September 30, | For the nine-month periods ended September 30, |
|  | 2025 | 2024 |
| Cash flows from investing activities: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Acquisition of financial assets at fair value through profit or loss | $(457744) | $(1592881) |
| &nbsp;&nbsp;&nbsp;&nbsp;Proceeds from disposal of financial assets at fair value through profit or loss | 424501 | 811838 |
| &nbsp;&nbsp;&nbsp;&nbsp;Proceeds from capital reduction of financial assets at fair value through other comprehensive <br>&nbsp;&nbsp;&nbsp;&nbsp; income | 160659 | - |
| &nbsp;&nbsp;&nbsp;&nbsp;Acquisition of financial assets at fair value through other comprehensive income or loss | (150000) | (64694) |
| &nbsp;&nbsp;&nbsp;&nbsp;Acquisition of financial assets measured at amortized cost | (10344888) | (4159208) |
| &nbsp;&nbsp;&nbsp;&nbsp;Proceeds from redemption of financial assets measured at amortized cost | 5156289 | 6129608 |
| &nbsp;&nbsp;&nbsp;&nbsp;Acquisition of investments accounted for under the equity method | - | (533973) |
| &nbsp;&nbsp;&nbsp;&nbsp;Increase in prepayment for investments | - | (10115) |
| &nbsp;&nbsp;&nbsp;&nbsp;Proceeds from capital reduction of investments accounted for under the equity method | 574997 | 1241874 |
| &nbsp;&nbsp;&nbsp;&nbsp;Disposal of subsidiary | - | (195498) |
| &nbsp;&nbsp;&nbsp;&nbsp;Acquisition of property, plant and equipment | (32918719) | (70268394) |
| &nbsp;&nbsp;&nbsp;&nbsp;Proceeds from disposal of property, plant and equipment | 102492 | 119415 |
| &nbsp;&nbsp;&nbsp;&nbsp;Increase in refundable deposits | (217766) | (771260) |
| &nbsp;&nbsp;&nbsp;&nbsp;Decrease in refundable deposits | 163997 | 1537553 |
| &nbsp;&nbsp;&nbsp;&nbsp;Acquisition of intangible assets | (2321437) | (1922356) |
| &nbsp;&nbsp;&nbsp;&nbsp;Government grants related to assets acquisition | 3751732 | 728498 |
| &nbsp;&nbsp;&nbsp;&nbsp;Increase in other noncurrent assets-others | (19492) | (23765) |
| &nbsp;&nbsp;&nbsp;&nbsp;Decrease in other noncurrent assets-others | 37 | - |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Net cash used in investing activities | (36095342) | (68973358) |
| Cash flows from financing activities: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Increase in short-term loans | 17696086 | 27618900 |
| &nbsp;&nbsp;&nbsp;&nbsp;Decrease in short-term loans | (10189000) | (24080000) |
| &nbsp;&nbsp;&nbsp;&nbsp;Proceeds from bonds issued | 10200000 | - |
| &nbsp;&nbsp;&nbsp;&nbsp;Bonds issuance costs | (5480) | (65) |
| &nbsp;&nbsp;&nbsp;&nbsp;Redemption of bonds | - | (5100000) |
| &nbsp;&nbsp;&nbsp;&nbsp;Proceeds from long-term loans | 21359200 | 25409930 |
| &nbsp;&nbsp;&nbsp;&nbsp;Repayments of long-term loans | (29777227) | (10289913) |
| &nbsp;&nbsp;&nbsp;&nbsp;Increase in guarantee deposits | 2813 | 64567 |
| &nbsp;&nbsp;&nbsp;&nbsp;Decrease in guarantee deposits | (664286) | (420190) |
| &nbsp;&nbsp;&nbsp;&nbsp;Cash payments for the principal portion of the lease liability | (636867) | (526439) |
| &nbsp;&nbsp;&nbsp;&nbsp;Cash dividends | (35788012) | (37585177) |
| &nbsp;&nbsp;&nbsp;&nbsp;Change in non-controlling interests | 15061 | 14041 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Net cash used in financing activities | (27787712) | (24894346) |
| Effect of exchange rate changes on cash and cash equivalents | (3761090) | 3826647 |
| Net decrease in cash and cash equivalents | (782844) | (29146189) |
| Cash and cash equivalents at beginning of period | 105000226 | 132553615 |
| Cash and cash equivalents at end of period | $104217382 | $103407426 |
| The accompanying notes are an integral part of the consolidated financial statements. | The accompanying notes are an integral part of the consolidated financial statements. | The accompanying notes are an integral part of the consolidated financial statements. |

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UNITED MICROELECTRONICS CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

For the Nine-Month Periods Ended September 30, 2025 and 2024

(Expressed in Thousands of New Taiwan Dollars unless Otherwise Specified)

1.<u>HISTORY AND ORGANIZATION</u>

United Microelectronics Corporation (UMC) was incorporated in Republic of China (R.O.C.) 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 ordinary shares were publicly listed on the Taiwan Stock Exchange (TWSE) in July 1985 and its American Depositary Shares (ADSs) were listed on the New York Stock Exchange (NYSE) in September 2000.

The address of its registered office and principal place of business is No. 3, Li-Hsin 2nd Road, Hsinchu Science Park, Hsinchu, Taiwan. The principal operating activities of UMC and its subsidiaries (collectively as "the Company") are described in Notes 4(3) and 14.

2.<u>DATE AND PROCEDURES OF AUTHORIZATION OF FINANCIAL STATEMENTS FOR ISSUE</u>

The consolidated financial statements of the Company were authorized for issue in accordance with a resolution of the Board of Directors' meeting on October 29, 2025.

3.<u>NEWLY ISSUED OR REVISED STANDARDS AND INTERPRETATIONS</u>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1)The Company applied International Financial Reporting Standards ("IFRS"), International Accounting Standards ("IAS"), and Interpretations issued, revised or amended which are endorsed by Financial Supervisory Commission (FSC) and become effective for annual periods beginning on or after January 1, 2025. There are no newly adopted or revised standards and interpretations that have material impact on the Company's financial position and performance.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2)Standards issued by International Accounting Standards Board ("IASB") which are endorsed by FSC, but not yet adopted by the Company are listed below:

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| | |
|:---|:---|
| New, Revised or Amended Standards and Interpretations | Effective Date issued by IASB |
| IFRS 17 "Insurance Contracts" | January 1, 2023 |
| &nbsp;&nbsp;&nbsp;Amendments to IFRS 9 "Financial Instruments" and IFRS 7 "Financial Instruments: Disclosures" - Amendments to the Classification and Measurement of Financial Instruments | January 1, 2026 |
| &nbsp;&nbsp;&nbsp;Annual Improvements to IFRS Accounting Standards - Volume 11 | January 1, 2026 |
| &nbsp;&nbsp;&nbsp;Amendments to IFRS 9 "Financial Instruments" and IFRS 7 "Financial Instruments: Disclosures" - Contracts Referencing Nature-dependent Electricity | January 1, 2026 |

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a.<u>IFRS 17 "Insurance Contracts" (IFRS 17)</u>

IFRS 17 provides a comprehensive model for insurance contracts, covering all relevant accounting aspects (including recognition, measurement, presentation and disclosure requirements). The core of IFRS 17 is the General (building block) Model, under this model, on initial recognition, an entity shall measure a group of insurance contracts at the total of the fulfilment cash flows and the contractual service margin. The carrying amount of a group of insurance contracts at the end of each reporting period shall be the sum of the liability for remaining coverage and the liability for incurred claims.

Other than the General Model, the standard also provides a specific adaptation for contracts with direct participation features (the Variable Fee Approach) and a simplified approach (Premium Allocation Approach) mainly for short-duration contracts.

IFRS 17 was issued in May 2017 and it was amended in 2020 and 2021. The amendments include deferral of the date of initial application of IFRS 17 by two years to annual beginning on or after January 1, 2023 (from the original effective date of January 1, 2021), provide additional transition reliefs, simplify some requirements to reduce the costs of applying IFRS 17 and revise some requirements to make the results easier to explain. IFRS 17 replaces an interim Standard - IFRS 4 Insurance Contracts - from annual reporting periods beginning on or after January 1, 2023.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b.<u>Amendments to IFRS 9 "Financial Instruments" and IFRS 7 "Financial Instruments: Disclosures" - Amendments to the Classification and Measurement of Financial Instruments</u>

The amendments include:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;i.Clarify that a financial liability is derecognised on the settlement date and describe the accounting treatment for settlement of financial liabilities using an electronic payment system before the settlement date.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;ii.Clarify how to assess the contractual cash flow characteristics of financial assets that include environmental, social and governance (ESG)-linked features and other similar contingent features.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;iii.Clarify the treatment of non-recourse assets and contractually linked instruments.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;iv.Require additional disclosures in IFRS 7 for financial assets and liabilities with contractual terms that reference a contingent event (including those that are ESG-linked), and equity instruments classified at fair value through other comprehensive income.

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;c.<u>Amendments to IFRS 9 "Financial Instruments" and IFRS 7 "Financial Instruments: Disclosures" - Contracts Referencing Nature-dependent Electricity</u>

The amendments include:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;i.Clarify the application of the "own-use" requirements.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;ii.Permit hedge accounting if these contracts are used as hedging instruments.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;iii.Add new disclosure requirements to enable investors to understand the effect of these contracts on a company's financial performance and cash flows.

The Company is currently evaluating the potential impact of the aforementioned standards and interpretations listed (a) - (c) to the Company's financial position and performance, and the related impact will be disclosed when the evaluation is completed.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(3)Standards issued by IASB but not yet endorsed by FSC (the effective dates are to be determined by FSC) are listed below:

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| | |
|:---|:---|
| New, Revised or Amended Standards and Interpretations | Effective Date issued by IASB |
| &nbsp;&nbsp;&nbsp;IFRS 10 "Consolidated Financial Statements" and IAS 28 "Investments in Associates and Joint Ventures" - Sale or Contribution of Assets between an Investor and its Associate or Joint Venture | To be determined by IASB |
| &nbsp;&nbsp;&nbsp;IFRS 18 "Presentation and Disclosure in Financial Statements" | January 1, 2027 (Note) |
| &nbsp;&nbsp;&nbsp;IFRS 19 "Disclosure Initiative - Subsidiaries without Public Accountability: Disclosures" | January 1, 2027 |
| Note: The FSC issued a press release on September 25, 2025, announcing the plan for public companies to adopt IFRS 18 starting from the fiscal year 2028. | Note: The FSC issued a press release on September 25, 2025, announcing the plan for public companies to adopt IFRS 18 starting from the fiscal year 2028. |

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The potential effects of adopting the standards or interpretations issued by IASB but not yet endorsed by FSC on the Company's financial statements in future periods are summarized as below:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a.<u>Amendments to IFRS 10 "Consolidated Financial Statements" (IFRS 10) and IAS 28 "Investments in Associates and Joint Ventures" (IAS 28) - Sale or Contribution of Assets between an Investor and its Associate or Joint Venture</u>

The amendments address the inconsistency between the requirements in IFRS 10 and IAS 28, in dealing with the loss of control of a subsidiary that is contributed to an associate or a joint venture. IAS 28 restricts gains and losses arising from contributions of non-monetary assets to an associate or a joint venture to the extent of the interest attributable to the other equity holders in the associate or joint ventures. IFRS 10 requires full profit or loss recognition on the loss of control of the subsidiary. IAS 28 was amended so that the gain or loss resulting from the sale or contribution of assets that constitute a business as defined in IFRS 3 "Business Combinations" (IFRS 3) between an investor and its associate or joint venture is recognized in full.

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IFRS 10 was also amended so that the gain or loss resulting from the sale or contribution of a subsidiary that does not constitute a business as defined in IFRS 3 between an investor and its associate or joint venture is recognized only to the extent of the unrelated investors' interests in the associate or joint venture.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b.<u>IFRS 18 "Presentation and Disclosure in Financial Statements" (IFRS 18)</u>

IFRS 18 replaces IAS 1 "Presentation of Financial Statements". The main changes in the new standard are as below:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;i.Improved comparability in the statement of profit or loss (income statement)

IFRS 18 requires entities to classify all income and expenses within their statement of profit or loss into one of five categories: operating; investing; financing; income taxes; and discontinued operations. The first three categories are new, to improve the structure of the income statement, and requires all entities to provide new defined subtotals, including operating profit or loss. The improved structure and new subtotals will give investors a consistent starting point for analyzing entities' performance and make it easier to compare entities.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;ii.Enhanced transparency of management-defined performance measures

IFRS 18 requires entities to disclose explanations of those entity-specific measures that are related to the income statement, referred to as management-defined performance measures.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;iii.Useful grouping of information in the financial statements

IFRS 18 sets out enhanced guidance on how to organize information and whether to provide it in the primary financial statements or in the notes. The changes are expected to provide more detailed and useful information. IFRS 18 also requires entities to provide more transparency about operating expenses, helping investors to find and understand the information they need.

The Company is currently evaluating the potential impact of the aforementioned standards and interpretations listed (a) - (b) to the Company's financial position and performance, and the related impact will be disclosed when the evaluation is completed.

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4.<u>SUMMARY OF MATERIAL ACCOUNTING POLICIES</u>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1)<u>Statement of Compliance</u>

The Company's consolidated financial statements were prepared in accordance with Regulations Governing the Preparation of Financial Reports by Securities Issuers (Regulations) and IAS 34 "Interim Financial Reporting" which is endorsed and become effective by FSC.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2)<u>Basis of Preparation</u>

The consolidated financial statements have been prepared on a historical cost basis, except for financial instruments measured at fair value.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(3)<u>General Description of Reporting Entity</u>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a.Principles of consolidation

The same principles of consolidation have been applied in the Company's consolidated financial statements as those applied in the Company's consolidated financial statements for the year ended December 31, 2024. For the principles of consolidation, please refer to Note 4(3) of the Company's consolidated financial statements for the year ended December 31, 2024.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b.The consolidated entities are as follows:

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| | | | | | |
|:---|:---|:---|:---|:---|:---|
|  |  |  | Percentage of ownership (%)<br>As of | Percentage of ownership (%)<br>As of | Percentage of ownership (%)<br>As of |
| Investor | Subsidiary | Business nature | September 30,<br>2025 | December 31,<br>2024 | September 30,<br>2024 |
| &nbsp;&nbsp;&nbsp;UMC | &nbsp;&nbsp;UMC GROUP (USA) | IC Sales | 100.00 | 100.00 | 100.00 |
| &nbsp;&nbsp;&nbsp;UMC | &nbsp;&nbsp;UNITED MICROELECTRONICS (EUROPE) B.V. (UME BV) | &nbsp;&nbsp;Marketing support activities | 100.00 | 100.00 | 100.00 |
| &nbsp;&nbsp;&nbsp;UMC | &nbsp;&nbsp;&nbsp;UMC CAPITAL CORP. | &nbsp;&nbsp;Investment holding | 100.00 | 100.00 | 100.00 |
| &nbsp;&nbsp;&nbsp;UMC | &nbsp;&nbsp;&nbsp;GREEN EARTH LIMITED (GE) | &nbsp;&nbsp;Investment holding | 100.00 | 100.00 | 100.00 |
| &nbsp;&nbsp;&nbsp;UMC | &nbsp;&nbsp;&nbsp;TLC CAPITAL CO., LTD. (TLC) | &nbsp;&nbsp;Venture capital | 100.00 | 100.00 | 100.00 |
| &nbsp;&nbsp;&nbsp;UMC | &nbsp;&nbsp;&nbsp;UMC INVESTMENT (SAMOA) LIMITED | Investment holding | 100.00 | 100.00 | 100.00 |
| &nbsp;&nbsp;&nbsp;UMC | &nbsp;&nbsp;&nbsp;FORTUNE VENTURE CAPITAL CORP. (FORTUNE) | &nbsp;&nbsp;Consulting and planning for venture capital | 100.00 | 100.00 | 100.00 |

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| | | | | | |
|:---|:---|:---|:---|:---|:---|
|  |  |  | Percentage of ownership (%)<br>As of | Percentage of ownership (%)<br>As of | Percentage of ownership (%)<br>As of |
| Investor | Subsidiary | Business nature | September 30,<br>2025 | December 31,<br>2024 | September 30,<br>2024 |
| &nbsp;&nbsp;&nbsp;UMC | &nbsp;&nbsp;&nbsp;UMC KOREA CO., LTD. (UMC KOREA) | &nbsp;&nbsp;Marketing support activities | 100.00 | 100.00 | 100.00 |
| &nbsp;&nbsp;&nbsp;UMC | &nbsp;&nbsp;&nbsp;OMNI GLOBAL LIMITED (OMNI) | Investment holding  | 100.00 | 100.00 | 100.00 |
| &nbsp;&nbsp;&nbsp;UMC | &nbsp;&nbsp;&nbsp;SINO PARAGON LIMITED | Investment holding | 100.00 | 100.00 | 100.00 |
| &nbsp;&nbsp;&nbsp;UMC | &nbsp;&nbsp;&nbsp;BEST ELITE INTERNATIONAL LIMITED (BE) | Investment holding | 100.00 | 100.00 | 100.00 |
| &nbsp;&nbsp;&nbsp;UMC | &nbsp;&nbsp;&nbsp;UNITED SEMICONDUCTOR JAPAN CO., LTD. (USJC) | &nbsp;&nbsp;Sales and manufacturing of integrated circuits | 100.00 | 100.00 | 100.00 |
| &nbsp;&nbsp;&nbsp;UMC and FORTUNE | &nbsp;&nbsp;&nbsp;WAVETEK MICROELECTRONICS CORPORATION (WAVETEK) | &nbsp;&nbsp;Sales and manufacturing of integrated circuits | 79.28 | 79.54 | 79.80 |
| &nbsp;&nbsp;&nbsp;TLC | &nbsp;&nbsp;&nbsp;SOARING CAPITAL CORP. | &nbsp;&nbsp;Investment holding | 100.00 | 100.00 | 100.00 |
| &nbsp;&nbsp;&nbsp;SOARING CAPITAL CORP. | &nbsp;&nbsp;&nbsp;UNITRUTH ADVISOR (SHANGHAI) CO., LTD. | &nbsp;&nbsp;Investment holding and advisory | 100.00 | 100.00 | 100.00 |
| &nbsp;&nbsp;&nbsp;GE | &nbsp;&nbsp;&nbsp;UNITED MICROCHIP CORPORATION | &nbsp;&nbsp;Investment holding | 100.00 | 100.00 | 100.00 |
| &nbsp;&nbsp;&nbsp;FORTUNE | &nbsp;&nbsp;&nbsp;TERA ENERGY DEVELOPMENT CO., LTD. (TERA ENERGY) | &nbsp;&nbsp;Energy technical services | 92.64 | 94.93 | 94.80 |
| &nbsp;&nbsp;&nbsp;TERA ENERGY | &nbsp;&nbsp;&nbsp;EVERRICH ENERGY INVESTMENT (HK) LIMITED (EVERRICH-HK) | &nbsp;&nbsp;Investment holding | 100.00 | 100.00 | 100.00 |
| &nbsp;&nbsp;&nbsp;EVERRICH-HK | &nbsp;&nbsp;&nbsp;EVERRICH (JINING) NEW ENERGY TECHNOLOGY CO., LTD. (formerly EVERRICH (SHANDONG) ENERGY CO., LTD.) | &nbsp;&nbsp;Solar engineering integrated design services | 100.00 | 100.00 | 100.00 |
| &nbsp;&nbsp;&nbsp;OMNI | &nbsp;&nbsp;&nbsp;UNITED MICROTECHNOLOGY CORPORATION (CALIFORNIA) | &nbsp;&nbsp;Research and development | 100.00 | 100.00 | 100.00 |
| &nbsp;&nbsp;&nbsp;OMNI | &nbsp;&nbsp;&nbsp;ECP VITA PTE. LTD. | Insurance | 100.00 | 100.00 | 100.00 |

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| | | | | | |
|:---|:---|:---|:---|:---|:---|
|  |  |  | Percentage of ownership (%)<br>As of | Percentage of ownership (%)<br>As of | Percentage of ownership (%)<br>As of |
| Investor | Subsidiary | Business nature | September 30,<br>2025 | December 31,<br>2024 | September 30,<br>2024 |
| &nbsp;&nbsp;&nbsp;WAVETEK | &nbsp;&nbsp;&nbsp;WAVETEK MICROELECTRONICS CORPORATION (USA) | Marketing service | 100.00 | 100.00 | 100.00 |
| &nbsp;&nbsp;&nbsp;BE | &nbsp;&nbsp;&nbsp;INFOSHINE TECHNOLOGY LIMITED (INFOSHINE) | Investment holding | 100.00 | 100.00 | 100.00 |
| &nbsp;&nbsp;&nbsp;INFOSHINE | &nbsp;&nbsp;&nbsp;OAKWOOD ASSOCIATES LIMITED (OAKWOOD) | &nbsp;&nbsp;Investment holding | 100.00 | 100.00 | 100.00 |
| &nbsp;&nbsp;OAKWOOD | &nbsp;&nbsp;&nbsp;HEJIAN TECHNOLOGY (SUZHOU) CO., LTD. (HEJIAN) | &nbsp;&nbsp;Sales and manufacturing of integrated circuits | 100.00 | 99.9985 | 99.9985 |
| &nbsp;&nbsp;UNITED MICROCHIP CORPORATION and HEJIAN | &nbsp;&nbsp;&nbsp;UNITED SEMICONDUCTOR (XIAMEN) CO., LTD. (USCXM) | &nbsp;&nbsp;Sales and manufacturing of integrated circuits | 100.00 | 100.00 | 100.00 |

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(4)<u>Other Material Accounting Policies</u>

The same accounting policies of consolidation have been applied in the Company's consolidated financial statements as those applied in the Company's consolidated financial statements for the year ended December 31, 2024. For the summary of material accounting policies, please refer to Note 4 of the Company's consolidated financial statements for the year ended December 31, 2024.

5.<u>SIGNIFICANT ACCOUNTING JUDGMENTS, ESTIMATES AND ASSUMPTIONS</u>

The same significant accounting judgments, estimates and assumptions have been applied in the Company's consolidated financial statements for the nine-month period ended September 30, 2025 as those applied in the Company's consolidated financial statements for the year ended December 31, 2024. For significant accounting judgments, estimates and assumptions, please refer to Note 5 of the Company's consolidated financial statements for the year ended December 31, 2024.

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6.<u>CONTENTS OF SIGNIFICANT ACCOUNTS</u>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1)<u>Cash and Cash Equivalents</u>

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| | | | |
|:---|:---|:---|:---|
|  | As of | As of | As of |
|  | September 30,<br>2025 | December 31,<br>2024 | September 30,<br>2024 |
| Cash on hand and petty cash | $6550 | $6258 | $6291 |
| Checking and savings accounts | 30622186 | 25388395 | 23054778 |
| Time deposits | 67186108 | 73507742 | 74816072 |
| &nbsp;&nbsp;&nbsp;&nbsp;Repurchase agreements collateralized by government bonds and corporate notes | 6402538 | 6097831 | 5530285 |
| Total | $104217382 | $105000226 | $103407426 |

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2)<u>Financial Assets at Fair Value through Profit or Loss</u>

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| | | | |
|:---|:---|:---|:---|
|  | As of | As of | As of |
|  | September 30,<br>2025 | December 31,<br>2024 | September 30,<br>2024 |
| &nbsp;&nbsp;&nbsp;&nbsp;Financial assets mandatorily measured at fair value through profit or loss |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Common stocks | $8889706 | $8759564 | $8968956 |
| &nbsp;&nbsp;&nbsp;&nbsp;Preferred stocks | 3292740 | 3475613 | 3116929 |
| &nbsp;&nbsp;&nbsp;&nbsp;Funds | 4844341 | 5792863 | 6532398 |
| &nbsp;&nbsp;&nbsp;&nbsp;Convertible bonds | 587248 | 363430 | 419092 |
| &nbsp;&nbsp;&nbsp;&nbsp;Forward exchange contracts | - | 2 | 8696 |
| &nbsp;&nbsp;&nbsp;&nbsp;Others | 70505 | 65460 | 63200 |
| Total | $17684540 | $18456932 | $19109271 |
| Current | $609971 | $606018 | $635316 |
| Non-current | 17074569 | 17850914 | 18473955 |
| Total | $17684540 | $18456932 | $19109271 |

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(3)<u>Financial Assets at Fair Value through Other Comprehensive Income</u>

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| | | | |
|:---|:---|:---|:---|
|  | As of | As of | As of |
|  | September 30,<br>2025 | December 31,<br>2024 | September 30,<br>2024 |
| &nbsp;&nbsp;&nbsp;&nbsp;Equity instruments |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Common stocks | $15612932 | $17004448 | $17223196 |
| &nbsp;&nbsp;&nbsp;&nbsp;Preferred stocks | 200039 | 204880 | 193536 |
| Total | $15812971 | $17209328 | $17416732 |
| Current | $5280436 | $5893377 | $6081214 |
| Non-current | 10532535 | 11315951 | 11335518 |
| Total | $15812971 | $17209328 | $17416732 |

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a.These investments in equity instruments are held for medium to long-term purposes and therefore are accounted for as fair value through other comprehensive income.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b.Dividend income recognized in profit or loss from equity instruments designated as fair value through other comprehensive income were listed below:

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| | | |
|:---|:---|:---|
|  | For the three-month periods<br>ended September 30, | For the three-month periods<br>ended September 30, |
|  | 2025 | 2024 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Held at end of period | $654548 | $689462 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Derecognized during the period | - | - |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total | $654548 | $689462 |

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| | | |
|:---|:---|:---|
|  | For the nine-month periods<br>ended September 30, | For the nine-month periods<br>ended September 30, |
|  | 2025 | 2024 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Held at end of period | $853924 | $888826 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Derecognized during the period | - | - |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total | $853924 | $888826 |

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;c.UMC issued unsecured exchangeable bonds where the bondholders may exchange the bonds at any time on or after October 8, 2021 and prior to June 27, 2026 into NOVATEK common shares which UMC holds and accounts for as equity instruments investments measured at fair value through other comprehensive income. Please refer to Note 6(13) for the Company's unsecured exchangeable bonds.

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(4)<u>Financial Assets Measured at Amortized Cost</u>

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| | | | |
|:---|:---|:---|:---|
|  | As of | As of | As of |
|  | September 30,<br>2025 | December 31,<br>2024 | September 30,<br>2024 |
| &nbsp;&nbsp;&nbsp;&nbsp;Time deposits with original maturities over three months | $8932294 | $3739224 | $4331331 |
| Current | $8932294 | $3739224 | $4302460 |
| Non-current | - | - | 28871 |
| Total | $8932294 | $3739224 | $4331331 |

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(5)<u>Accounts Receivable, Net</u>

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| | | | |
|:---|:---|:---|:---|
|  | As of | As of | As of |
|  | September 30,<br>2025 | December 31,<br>2024 | September 30,<br>2024 |
| Accounts receivable | $31650655 | $32734422 | $33054571 |
| Less: loss allowance | (8100) | (10996) | (11050) |
| Net | $31642555 | $32723426 | $33043521 |

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Aging analysis of accounts receivable:

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| | | | |
|:---|:---|:---|:---|
|  | As of | As of | As of |
|  | September 30,<br>2025 | December 31,<br>2024 | September 30,<br>2024 |
| Neither past due | $29130437 | $29338097 | $28385654 |
| Past due: |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;≤ 30 days | 2449922 | 3292457 | 3988058 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;31 to 60 days | 38246 | 77929 | 154075 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;61 to 90 days | 7292 | 1249 | 10971 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;91 to 120 days | 2501 | 1115 | 12 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;≥ 121 days | 22257 | 23575 | 515801 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Subtotal | 2520218 | 3396325 | 4668917 |
| Total | $31650655 | $32734422 | $33054571 |

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Movement of loss allowance for accounts receivable:

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| | | |
|:---|:---|:---|
|  | For the nine-month periods <br>ended September 30, | For the nine-month periods <br>ended September 30, |
|  | 2025 | 2024 |
| Beginning balance | $10996 | $79062 |
| Net recognition (reversal) for the period | (2896) | (68012) |
| Ending balance | $8100 | $11050 |

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The collection periods for third party domestic sales and third party overseas sales were month-end 30 - 60 days and net 30 - 60 days, respectively.

An impairment analysis is performed at each reporting date to measure expected credit losses (ECLs) of accounts receivable. For the receivables past due within 60 days, including not past due, the Company estimates an expected credit loss rate to calculate ECLs. For the nine-month periods ended September 30, 2025 and 2024, the expected credit loss rates were not greater than 0.2%. The rate is determined based on the Company's historical credit loss experience and customer's current financial condition, adjusted for forward-looking factors such as customer's economic environment. For the receivables past due over 60 days, the Company applies the aforementioned rate and assesses individually whether to recognize additional expected credit losses by considering customer's operating condition and debt-paying ability.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(6)<u>Inventories, Net</u>

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| | | | |
|:---|:---|:---|:---|
|  | As of | As of | As of |
|  | September 30,<br>2025 | December 31,<br>2024 | September 30,<br>2024 |
| Raw materials | $9987157 | $10731866 | $11980054 |
| Supplies and spare parts | 5854886 | 6238353 | 6176399 |
| Work in process | 17379060 | 16051506 | 16892608 |
| Finished goods | 1959403 | 2760739 | 3040977 |
| Total | $35180506 | $35782464 | $38090038 |

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a.For the three-month periods ended September 30, 2025 and 2024, the Company recognized NT$39,556 million and NT$38,098 million, respectively, in operating costs, of which NT$488 million was related to reversal of write-down of inventories and NT$560 million were related to write-down of inventories. For the nine-month periods ended September 30, 2025 and 2024, the Company recognized NT$119,869 million and NT$108,371 million, respectively, in operating cost, of which NT$1,006 million and NT$523 million was related to write-down of inventories.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b.None of the aforementioned inventories were pledged.

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(7)<u>Investments Accounted for Under the Equity Method</u>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a.Details of investments accounted for under the equity method are as follows:

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| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
|  | &nbsp;&nbsp;&nbsp;As of | &nbsp;&nbsp;&nbsp;As of | &nbsp;&nbsp;&nbsp;As of | &nbsp;&nbsp;&nbsp;As of | &nbsp;&nbsp;&nbsp;As of | &nbsp;&nbsp;&nbsp;As of |
|  | September 30,<br>2025 | September 30,<br>2025 | December 31,<br>2024 | December 31,<br>2024 | September 30,<br>2024 | September 30,<br>2024 |
| Investee companies | Amount | Percentage of ownership or voting rights | Amount | Percentage of ownership or voting rights | Amount | Percentage of ownership or voting rights |
| <u>Listed companies</u> |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;SILICON INTEGRATED SYSTEMS CORP. (SIS) (Note A) | $3378448 | 17.99 | $2977838 | 19.02 | $3526791 | 19.02 |
| &nbsp;&nbsp;&nbsp;&nbsp;FARADAY TECHNOLOGY CORP. (FARADAY) (Note B) | 2437201 | 13.80 | 2492118 | 13.80 | 2502993 | 13.80 |
| &nbsp;&nbsp;&nbsp;&nbsp;UNIMICRON TECHNOLOGY CORP. (UNIMICRON) (Note C) | 13592545 | 13.01 | 13853588 | 13.01 | 13864927 | 13.05 |
| <u>Unlisted companies</u> |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;MTIC HOLDINGS PTE. LTD. (Note D) | - | 45.44 | - | 45.44 | - | 45.44 |
| &nbsp;&nbsp;&nbsp;&nbsp;UNITECH CAPITAL INC. | 566295 | 42.00 | 556610 | 42.00 | 527060 | 42.00 |
| &nbsp;&nbsp;&nbsp;&nbsp;TRIKNIGHT CAPITAL CORPORATION (TRIKNIGHT) (Note E) | 862339 | 40.00 | 1298112 | 40.00 | 1580752 | 40.00 |
| &nbsp;&nbsp;&nbsp;&nbsp;HSUN CHIEH CAPITAL CORP. | 245969 | 40.00 | 266066 | 40.00 | 258533 | 40.00 |
| &nbsp;&nbsp;&nbsp;&nbsp;PURIUMFIL INC. (Note F) | 9144 | 40.00 | 12423 | 40.00 | 13309 | 40.00 |
| &nbsp;&nbsp;&nbsp;&nbsp;HSUN CHIEH INVESTMENT CO., LTD. (HSUN CHIEH) (Note G) | 12200237 | 36.49 | 11654611 | 36.49 | 13374490 | 36.49 |

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| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
|  | &nbsp;&nbsp;&nbsp;As of | &nbsp;&nbsp;&nbsp;As of | &nbsp;&nbsp;&nbsp;As of | &nbsp;&nbsp;&nbsp;As of | &nbsp;&nbsp;&nbsp;As of | &nbsp;&nbsp;&nbsp;As of |
|  | September 30,<br>2025 | September 30,<br>2025 | December 31,<br>2024 | December 31,<br>2024 | September 30,<br>2024 | September 30,<br>2024 |
| Investee companies | Amount | Percentage of ownership or voting rights | Amount | Percentage of ownership or voting rights | Amount | Percentage of ownership or voting rights |
| &nbsp;&nbsp;&nbsp;&nbsp;YANN YUAN INVESTMENT CO., LTD. (YANN YUAN) | $11247379 | 26.78 | $10067226 | 26.78 | $11044207 | 26.78 |
| &nbsp;&nbsp;&nbsp;&nbsp;UNITED LED CORPORATION HONG KONG LIMITED | 117555 | 25.14 | 101468 | 25.14 | 101668 | 25.14 |
| &nbsp;&nbsp;&nbsp;&nbsp;VSENSE CO., LTD. (VSENSE) (Note D and H) | - | - | - | 23.98 | - | 23.98 |
| &nbsp;&nbsp;&nbsp;&nbsp;TRANSLINK CAPITAL PARTNERS I, L.P. (Note I) | - | - | 40545 | 10.38 | 50215 | 10.38 |
| &nbsp;&nbsp;&nbsp;&nbsp;Total | $44657112 |  | $43320605 |  | $46844945 |  |

---

Note A:In August 2023, the board chairman of SIS changed and became the same person as the board chairman of UMC. After considering the comprehensive conditions, including ownership interest held and representation on Board of Directors of SIS, etc., the Company determines that it has significant influence over SIS and accounts for its investment in SIS as an associate. SIS executed a capital reduction and refunded NT$499 million based on UMC's stockholding percentage in July 2024.

Note B:Beginning from June 2015, the Company accounts for its investment in FARADAY as an associate given the fact that UMC obtained the ability to exercise significant influence over FARADAY through representation on its Board of Directors. The Company participated in the capital increase of FARADAY in March 2024. Please refer to Note 7 for the relevant information.

Note C:Beginning from June 2020, the Company accounts for its investment in UNIMICRON as an associate given the fact that UMC obtained the ability to exercise significant influence over UNIMICRON through representation on its Board of Directors.

------

Note D:When the Company's share of losses of an associate equals or exceeds its interest in that associate, the Company discontinues recognizing its share of further losses. Additional losses and liabilities are recognized only to the extent that the Company has incurred legal or constructive obligations or made payments on behalf of that associate.

Note E:TRIKNIGHT executed a capital reduction and refunded NT$232 million, NT$400 million and NT$360 million based on UMC's stockholding percentage in June 2025, July 2024 and December 2024, respectively.

Note F:In August 2025, the Board of Directors of the Company's subsidiary, TERA ENERGY, resolved to merge with PURIUMFIL INC., with TERA ENERGY as the surviving company. The effective date of merger is October 3, 2025.

Note G:HSUN CHIEH executed a capital reduction and refunded NT$343 million and NT$343 million based on UMC's stockholding percentage in March 2025 and April 2024, respectively.

Note H:VSENSE has ceased operations. The Company's subsidiary no longer participates in the financial and operating policy decisions of the investee, therefore losing significant influence over it. Accordingly, the investment was discontinued from being accounted for under the equity method and was reclassified as a financial asset at fair value through profit or loss.

Note I:The Company follows international accounting practices in equity accounting for limited partnerships and uses the equity method to account for these investees. The investee was dissolved in April 2025.

The carrying amount of investments accounted for using the equity method for which there are published price quotations amounted to NT$19,408 million, NT$19,324 million and NT$19,895 million as of September 30, 2025, December 31, 2024 and September 30, 2024, respectively. The fair value of these investments were NT$41,139 million, NT$43,305 million and NT$44,783 million as of September 30, 2025, December 31, 2024 and September 30, 2024, respectively.

Certain investments accounted for under the equity method were reviewed by other independent accountants. Shares of profit or loss of these associates and joint ventures amounted to NT$1,088 million, NT$358 million, NT$1,005 million and NT$1,378 million for the three-month and nine-month periods ended September 30, 2025 and 2024, respectively. Share of other comprehensive income (loss) of these associates and joint ventures amounted to NT$329 million, NT$(65) million, NT$(298) million and NT$274 million for the three-month and nine-month periods ended September 30, 2025 and 2024, respectively. The balances of investments accounted for under the equity method were NT$27,221 million, NT$27,670 million and NT$29,347 million as of September 30, 2025, December 31, 2024 and September 30, 2024, respectively.

------

Although the Company is the largest shareholder of some associates, after comprehensive assessment, the Company does not own the major voting rights as the remaining voting rights holders are able to align and prevent the Company from ruling the relevant operation. Therefore, the Company does not control but has significant influence over the aforementioned associates.

None of the aforementioned associates were pledged.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b.Financial information of associates:

There is no individually significant associate for the Company. When an associate is a foreign operation, and the functional currency of the foreign entity is different from the Company, an exchange difference arising from translation of the foreign entity will be recognized in other comprehensive income (loss). Such exchange differences recognized in other comprehensive income (loss) in the financial statements for the three-month and nine-month periods ended September 30, 2025 and 2024 were NT$25 million, NT$(18) million, NT$(58) million and NT$27 million, respectively, which were not included in the following table.

The aggregate amount of the Company's share of all its individually immaterial associates that are accounted for using the equity method were as follows:

---

| | | |
|:---|:---|:---|
|  | For the three-month periods<br>ended September 30, | For the three-month periods<br>ended September 30, |
|  | 2025 | 2024 |
| Income (loss) from continuing operations | $1250411 | $842760 |
| Other comprehensive income (loss) | 2025702 | (642823) |
| Total comprehensive income (loss) | $3276113 | $199937 |

---

---

| | | |
|:---|:---|:---|
|  | For the nine-month periods<br>ended September 30, | For the nine-month periods<br>ended September 30, |
|  | 2025 | 2024 |
| Income (loss) from continuing operations | $1488765 | $2210894 |
| Other comprehensive income (loss) | 856861 | 898826 |
| Total comprehensive income (loss) | $2345626 | $3109720 |

---

------

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;c.Details of UMC's stock (thousand shares) held by the Company's associates are as follows:

---

| | | | |
|:---|:---|:---|:---|
|  | As of | As of | As of |
|  | September 30,<br>2025 | December 31,<br>2024 | September 30,<br>2024 |
| HSUN CHIEH | 441371 | 441371 | 441371 |
| SIS | 266580 | 266580 | 266580 |
| YANN YUAN | 192963 | 192963 | 192963 |
| &nbsp;&nbsp;&nbsp;&nbsp;UNIMICRON and its Subsidiaries | 47 | 47 | 47 |
| Total | 900961 | 900961 | 900961 |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(8)<u>Property, Plant and Equipment</u>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a.<u>For the nine-month period ended September 30, 2025:</u>

<u>Assets Used by the Company:</u>

<u>Cost:</u>

---

| | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|
|  | Land | Buildings | Machinery <br>and equipment | Transportation equipment | Furniture<br>and fixtures | Leasehold improvement | Construction in progress and equipment awaiting inspection | Total |
| &nbsp;&nbsp;As of January 1, 2025 | $1410796 | $65588012 | $1126546727 | $78020 | $9533232 | $68407 | $44767602 | $1247992796 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Additions | - | 26708 | - | - | - | - | 31099421 | 31126129 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Disposals | - | (15629) | (2862503) | (360) | (6759) | - | - | (2885251) |
| &nbsp;&nbsp;&nbsp;Transfers and reclassifications | - | 2887729 | 52136849 | 2354 | 1229032 | 2163 | (50861410) | 5396717 |
| &nbsp;&nbsp;&nbsp;Exchange effect | (10828) | (2503784) | (20907434) | (1661) | (64731) | (3567) | (2677719) | (26169724) |
| &nbsp;&nbsp;&nbsp;As of September 30, 2025 | $1399968 | $65983036 | $1154913639 | $78353 | $10690774 | $67003 | $22327894 | $1255460667 |

---

<u>Accumulated Depreciation and Impairment:</u>

---

| | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|
|  | Land | Buildings | Machinery<br>and equipment | Transportation equipment | Furniture<br>and fixtures | Leasehold improvement | Construction in progress and equipment awaiting inspection | Total |
| &nbsp;&nbsp;As of January 1, 2025 | $- | $25675000 | $937309791 | $61733 | $7534386 | $67464 | $- | $970648374 |
| &nbsp;&nbsp;Depreciation | - | 1683756 | 38835793 | 3030 | 440317 | 1560 | - | 40964456 |
| &nbsp;&nbsp;Disposals | - | (15629) | (2856293) | (360) | (6759) | - | - | (2879041) |
| Exchange effect | - | (357768) | (16465435) | (1203) | (48250) | (3492) | - | (16876148) |
| &nbsp;&nbsp;&nbsp;As of September 30, 2025 | $- | $26985359 | $956823856 | $63200 | $7919694 | $65532 | $- | $991857641 |
| &nbsp;&nbsp;&nbsp;Net carrying amount: |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;As of September 30, 2025 | $1399968 | $38997677 | $198089783 | $15153 | $2771080 | $1471 | $22327894 | $263603026 |

---

------

<u>Assets Subject to Operating Leases:</u>

<u>Cost:</u>

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
|  | Land | Buildings | Machinery <br>and equipment | Furniture<br>and fixtures | Total |
| &nbsp;&nbsp;As of January 1, 2025 | $536721 | $2461012 | $6345 | $1409464 | $4413542 |
| &nbsp;&nbsp;&nbsp;Disposals | - | (1250) | - | (512) | (1762) |
| &nbsp;&nbsp;&nbsp;Transfers and reclassifications | - | 19858 | - | 4691 | 24549 |
| &nbsp;&nbsp;&nbsp;Exchange effect | (1652) | (21382) | - | (11458) | (34492) |
| &nbsp;&nbsp;&nbsp;As of September 30, 2025 | $535069 | $2458238 | $6345 | $1402185 | $4401837 |

---

<u>Accumulated Depreciation and Impairment:</u>

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
|  | Land | Buildings | Machinery <br>and equipment | Furniture<br>and fixtures | Total |
| &nbsp;&nbsp;As of January 1, 2025 | $- | $1347206 | $6345 | $1345376 | $2698927 |
| &nbsp;&nbsp;Depreciation | - | 29462 | - | 11032 | 40494 |
| &nbsp;&nbsp;Disposals | - | (476) | - | (512) | (988) |
| &nbsp;&nbsp;&nbsp;Exchange effect | - | (13381) | - | (11104) | (24485) |
| &nbsp;&nbsp;&nbsp;As of September 30, 2025 | $- | $1362811 | $6345 | $1344792 | $2713948 |
| &nbsp;&nbsp;&nbsp;Net carrying amount: |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;As of September 30, 2025 | $535069 | $1095427 | $- | $57393 | $1687889 |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b.<u>For the nine-month period ended September 30, 2024:</u>

<u>Assets Used by the Company:</u>

<u>Cost:</u>

---

| | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|
|  | Land | Buildings | Machinery <br>and equipment | Transportation equipment | Furniture<br>and fixtures | Leasehold improvement | Construction in progress and equipment awaiting inspection | Total |
| &nbsp;&nbsp;As of January 1, 2024 | $1430338 | $38369863 | $1021498821 | $71712 | $8873468 | $65823 | $82358651 | $1152668676 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Additions | - | 30056 | - | - | - | - | 64507409 | 64537465 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Disposals | - | (1019) | (1556187) | - | (69409) | - | (708) | (1627323) |
| &nbsp;&nbsp;&nbsp;Disposal of a subsidiary | - | (119012) | - | - | (40258) | - | - | (159270) |
| &nbsp;&nbsp;&nbsp;Transfers and reclassifications | - | 1319623 | 76374580 | 741 | 532426 | - | (75634927) | 2592443 |
| &nbsp;&nbsp;&nbsp;Exchange effect | 13469 | 568700 | 9100516 | 961 | 64198 | 1614 | 2035869 | 11785327 |
| &nbsp;&nbsp;&nbsp;As of September 30, 2024 | $1443807 | $40168211 | $1105417730 | $73414 | $9360425 | $67437 | $73266294 | $1229797318 |

---

------

<u>Accumulated Depreciation and Impairment:</u>

---

| | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|
|  | Land | Buildings | Machinery<br>and equipment | Transportation equipment | Furniture<br>and fixtures | Leasehold improvement | Construction in progress and equipment awaiting inspection | Total |
| &nbsp;&nbsp;As of January 1, 2024 | $- | $24028140 | $884088674 | $56257 | $7056013 | $63038 | $- | $915292122 |
| &nbsp;&nbsp;Depreciation | - | 1045620 | 30811061 | 3444 | 381837 | 1744 | - | 32243706 |
| &nbsp;&nbsp;Disposals | - | (110) | (1512043) | - | (68972) | - | - | (1581125) |
| Disposal of a subsidiary | - | (27012) | - | - | (20005) | - | - | (47017) |
| Exchange effect | - | 215807 | 8903111 | 689 | 53387 | 1591 | - | 9174585 |
| &nbsp;&nbsp;&nbsp;As of September 30, 2024 | $- | $25262445 | $922290803 | $60390 | $7402260 | $66373 | $- | $955082271 |
| &nbsp;&nbsp;&nbsp;Net carrying amount: |  |  |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;As of September 30, 2024 | $1443807 | $14905766 | $183126927 | $13024 | $1958165 | $1064 | $73266294 | $274715047 |

---

<u>Assets Subject to Operating Leases:</u>

<u>Cost:</u>

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
|  | Land | Buildings | Machinery <br>and equipment | Furniture<br>and fixtures | Total |
| &nbsp;&nbsp;As of January 1, 2024 | $539703 | $2440917 | $6345 | $1385740 | $4372705 |
| &nbsp;&nbsp;&nbsp;Transfers and reclassifications | - | - | - | 14531 | 14531 |
| &nbsp;&nbsp;&nbsp;Exchange effect | 2055 | 11970 | - | 8876 | 22901 |
| &nbsp;&nbsp;&nbsp;As of September 30, 2024 | $541758 | $2452887 | $6345 | $1409147 | $4410137 |

---

<u>Accumulated Depreciation and Impairment:</u>

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
|  | Land | Buildings | Machinery <br>and equipment | Furniture<br>and fixtures | Total |
| &nbsp;&nbsp;As of January 1, 2024 | $- | $1297068 | $6345 | $1322598 | $2626011 |
| &nbsp;&nbsp;Depreciation | - | 29358 | - | 10529 | 39887 |
| &nbsp;&nbsp;&nbsp;Exchange effect | - | 5814 | - | 8756 | 14570 |
| &nbsp;&nbsp;&nbsp;As of September 30, 2024 | $- | $1332240 | $6345 | $1341883 | $2680468 |
| &nbsp;&nbsp;&nbsp;Net carrying amount: |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;As of September 30, 2024 | $541758 | $1120647 | $- | $67264 | $1729669 |

---

------

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;c.Details of interest expense capitalized were as follows:

---

| | | |
|:---|:---|:---|
|  | For the nine-month periods<br>ended September 30, | For the nine-month periods<br>ended September 30, |
|  | 2025 | 2024 |
| &nbsp;&nbsp;&nbsp;&nbsp;Interest expense capitalized | $6777 | $10142 |
| Interest rates applied | 1.64% - 1.81% | 1.52% - 1.95% |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;d.Please refer to Note 8 for property, plant and equipment pledged as collateral.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(9)<u>Leases</u>

The Company leases various properties, such as land (including land use right), buildings, machinery and equipment, transportation equipment and other equipment with lease terms of 2 to 31 years, except for the land use rights with lease term of 50 years. Most lease contracts of land located in R.O.C state that lease payments will be adjusted based on the announced land value. The Company does not have purchase options of leased land at the end of the lease terms.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a.The Company as a lessee

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a)Right-of-use Assets

---

| | | | |
|:---|:---|:---|:---|
|  | As of | As of | As of |
|  | September 30,<br>2025 | December 31,<br>2024 | September 30,<br>2024 |
| Land (including land use right) | $5367527 | $5755484 | $5825525 |
| Buildings | 122194 | 168568 | 187774 |
| Machinery and equipment | 1975073 | 2082479 | 2025948 |
| Transportation equipment | 8066 | 12561 | 13948 |
| Other equipment | 20668 | 19923 | 4270 |
| Net | $7493528 | $8039015 | $8057465 |

---

---

| | | |
|:---|:---|:---|
|  | For the three-month periods<br>ended September 30, | For the three-month periods<br>ended September 30, |
|  | 2025 | 2024 |
| <u>Depreciation</u> |  |  |
| Land (including land use right) | $92942 | $95225 |
| Buildings | 19527 | 21628 |
| Machinery and equipment | 58140 | 58744 |
| Transportation equipment | 2656 | 2534 |
| Other equipment | 977 | 331 |
| Total | $174242 | $178462 |

---

------

---

| | | |
|:---|:---|:---|
|  | For the nine-month periods <br>ended September 30, | For the nine-month periods <br>ended September 30, |
|  | 2025 | 2024 |
| <u>Depreciation</u> |  |  |
| Land (including land use right) | $281024 | $282495 |
| Buildings | 59956 | 66105 |
| Machinery and equipment | 178520 | 160726 |
| Transportation equipment | 7613 | 8279 |
| Other equipment | 2725 | 824 |
| Total | $529838 | $518429 |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;i.For the nine-month periods ended September 30, 2025 and 2024, the Company's addition to right-of-use assets amounted to NT$334 million and NT$1,523 million, respectively.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;ii.Please refer to Note 8 for right-of-use assets pledged as collateral.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b)Lease Liabilities

---

| | | | |
|:---|:---|:---|:---|
|  | As of | As of | As of |
|  | September 30,<br>2025 | December 31,<br>2024 | September 30,<br>2024 |
| Current | $644247 | $636357 | $628299 |
| Non-current | 5449340 | 5782659 | 5882282 |
| Total | $6093587 | $6419016 | $6510581 |

---

Please refer to Note 6(24) for the interest expenses on the lease liabilities.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b.The Company as a lessor

The Company entered into leases on certain property, plant and equipment which are classified as operating leases as they did not transfer substantially all of the risks and rewards incidental to ownership of the underlying assets. The main contracts are to lease the dormitory to the employees with cancellation clauses. Please refer to Note 6(8) for relevant disclosure of property, plant and equipment for operating leases.

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(10)<u>Intangible Assets</u>

<u>For the nine-month period ended September 30, 2025:</u>

<u>Cost:</u>

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
|  | Goodwill | Software | Patents and technology license fees | Others | Total |
| As of January 1, 2025 | $15012 | $5476499 | $2042479 | $2951272 | $10485262 |
| Additions | - | 1874265 | 7769 | 551892 | 2433926 |
| Write-off | - | (1543809) | - | (422902) | (1966711) |
| Exchange effect | - | (58290) | (482681) | (2376) | (543347) |
| &nbsp;&nbsp;As of September 30, 2025 | $15012 | $5748665 | $1567567 | $3077886 | $10409130 |

---

<u>Accumulated Amortization and Impairment:</u>

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
|  | Goodwill | Software | Patents and technology license fees | Others | Total |
| As of January 1, 2025 | $7398 | $3231115 | $1162797 | $1929637 | $6330947 |
| Amortization | - | 1281288 | 186484 | 566905 | 2034677 |
| Write-off | - | (1543809) | - | (422902) | (1966711) |
| Exchange effect | - | (25426) | (417904) | (2725) | (446055) |
| As of September 30, 2025 | $7398 | $2943168 | $931377 | $2070915 | $5952858 |
| &nbsp;&nbsp;Net carrying amount: |  |  |  |  |  |
| &nbsp;&nbsp;As of September 30, 2025 | $7614 | $2805497 | $636190 | $1006971 | $4456272 |

---

<u>For the nine-month period ended September 30, 2024:</u>

<u>Cost:</u>

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
|  | Goodwill | Software | Patents and technology license fees | Others | Total |
| As of January 1, 2024 | $15012 | $5466077 | $1773541 | $3310641 | $10565271 |
| Additions | - | 774207 | - | 397932 | 1172139 |
| Write-off | - | (1201819) | (214874) | (251919) | (1668612) |
| Disposal of a subsidiary | - | (3143) | - | - | (3143) |
| Reclassifications | - | 6097 | - | - | 6097 |
| Exchange effect | - | 39531 | 498823 | 3473 | 541827 |
| &nbsp;&nbsp;As of September 30, 2024 | $15012 | $5080950 | $2057490 | $3460127 | $10613579 |

---

------

<u>Accumulated Amortization and Impairment:</u>

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
|  | Goodwill | Software | Patents and technology license fees | Others | Total |
| As of January 1, 2024 | $7398 | $2890831 | $908965 | $2385522 | $6192716 |
| Amortization | - | 1214886 | 157217 | 493551 | 1865654 |
| Write-off | - | (1201819) | (214874) | (251919) | (1668612) |
| Disposal of a subsidiary | - | (2020) | - | - | (2020) |
| Exchange effect | - | 26563 | 342434 | 3412 | 372409 |
| As of September 30, 2024 | $7398 | $2928441 | $1193742 | $2630566 | $6760147 |
| &nbsp;&nbsp;Net carrying amount: |  |  |  |  |  |
| &nbsp;&nbsp;As of September 30, 2024 | $7614 | $2152509 | $863748 | $829561 | $3853432 |

---

The amortization amounts of intangible assets were as follows:

---

| | | |
|:---|:---|:---|
|  | For the three-month periods<br>ended September 30, | For the three-month periods<br>ended September 30, |
|  | 2025 | 2024 |
| Operating costs | $320411 | $267758 |
| Operating expenses | $346999 | $362974 |

---

---

| | | |
|:---|:---|:---|
|  | For the nine-month periods <br>ended September 30, | For the nine-month periods <br>ended September 30, |
|  | 2025 | 2024 |
| Operating costs | $930889 | $702675 |
| Operating expenses | $1103788 | $1162979 |

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(11)<u>Short-Term Loans</u>

---

| | | | |
|:---|:---|:---|:---|
|  | As of | As of | As of |
|  | September 30,<br>2025 | December 31,<br>2024 | September 30,<br>2024 |
| Unsecured bank loans | $16060185 | $8515000 | $17068900 |

---

---

| | | | |
|:---|:---|:---|:---|
|  | As of | As of | As of |
|  | September 30,<br>2025 | December 31,<br>2024 | September 30,<br>2024 |
| Interest rates applied | 1.78% - 4.96% | 1.87% - 2.99% | 1.79% - 2.72% |

---

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(12)<u>Financial Liabilities at Fair Value through Profit or Loss, Current</u>

---

| | | | |
|:---|:---|:---|:---|
|  | As of | As of | As of |
|  | September 30,<br>2025 | December 31,<br>2024 | September 30,<br>2024 |
| &nbsp;&nbsp;&nbsp;&nbsp;Embedded derivatives in exchangeable bonds | $312462 | $899961 | $1086488 |
| &nbsp;&nbsp;&nbsp;&nbsp;Forward exchange contracts | 2081 | 1039 | - |
| &nbsp;&nbsp;&nbsp;&nbsp;Total | $314543 | $901000 | $1086488 |

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(13)<u>Bonds Payable</u>

---

| | | | |
|:---|:---|:---|:---|
|  | As of | As of | As of |
|  | September 30,<br>2025 | December 31,<br>2024 | September 30,<br>2024 |
| &nbsp;&nbsp;&nbsp;&nbsp;Unsecured domestic bonds payable | $34800000 | $24600000 | $28000000 |
| &nbsp;&nbsp;&nbsp;&nbsp;Unsecured exchangeable bonds payable | 5757373 | 5757373 | 5757373 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Less: Discounts on bonds payable | (169407) | (305805) | (353956) |
| &nbsp;&nbsp;&nbsp;&nbsp;Total | 40387966 | 30051568 | 33403417 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Less: Current or exchangeable portion due within one year | (11109608) | (5466589) | (8819770) |
| &nbsp;&nbsp;&nbsp;&nbsp;Net | $29278358 | $24584979 | $24583647 |

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a.UMC issued domestic unsecured corporate bonds. The terms and conditions of the bonds are as follows:

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| | | | | |
|:---|:---|:---|:---|:---|
| Term | Issuance date | Issued amount | Coupon rate | Repayment |
| Seven-year | &nbsp;&nbsp;In early October 2017 | NT$3,400 million | 1.13% | &nbsp;&nbsp;&nbsp;&nbsp;Interest was paid annually and the principal was fully repaid in October 2024. |
| Five-year | &nbsp;&nbsp;In late April 2021 | NT$5,500 million | 0.57% | &nbsp;&nbsp;&nbsp;&nbsp;Interest will be paid annually and the principal will be repayable in April 2026 upon maturity. |
| Seven-year | &nbsp;&nbsp;In late April 2021 | NT$2,000 million | 0.63% | &nbsp;&nbsp;&nbsp;&nbsp;Interest will be paid annually and the principal will be repayable in April 2028 upon maturity. |
| Ten-year (Green bond) | &nbsp;&nbsp;In late April 2021 | NT$2,100 million | 0.68% | &nbsp;&nbsp;&nbsp;&nbsp;Interest will be paid annually and the principal will be repayable in April 2031 upon maturity. |

---

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| | | | | |
|:---|:---|:---|:---|:---|
| Term | Issuance date | Issued amount | Coupon rate | Repayment |
| Five-year | &nbsp;&nbsp;In mid-December 2021 | NT$5,000 million | 0.63% | &nbsp;&nbsp;&nbsp;&nbsp;Interest will be paid annually and the principal will be repayable in December 2026 upon maturity. |
| Five-year (Green bond) | &nbsp;&nbsp;In mid-September 2023 | NT$10,000 million | 1.62% | &nbsp;&nbsp;&nbsp;&nbsp;Interest will be paid annually and the principal will be repayable in September 2028 upon maturity. |
| Five-year (Green bond) | &nbsp;&nbsp;In late June 2025 | NT$2,000 million | 1.94% | &nbsp;&nbsp;&nbsp;&nbsp;Interest will be paid annually and the principal will be repayable in June 2030 upon maturity. |
| Five-year | &nbsp;&nbsp;In late June 2025 | NT$3,200 million | 1.99% | &nbsp;&nbsp;&nbsp;&nbsp;Interest will be paid annually and the principal will be repayable in June 2030 upon maturity. |
| Three-year | &nbsp;&nbsp;In late August 2025 | NT$5,000 million | 1.80% | &nbsp;&nbsp;&nbsp;&nbsp;Interest will be paid annually and the principal will be repayable in August 2028 upon maturity. |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b.On July 7, 2021, UMC issued SGX-ST listed currency linked zero coupon exchangeable bonds. In accordance with IFRS 9, the value of the exchange right, call option and put option (together referred to as Option) of the exchangeable bonds was separated from the host and accounted for as "financial liabilities at fair value through profit or loss, current". The effective rate of the host bond was 3.49%. The terms and conditions of the bonds are as follows:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;i.Issue Amount: USD 400 million

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;ii.Period: July 7, 2021 - July 7, 2026 (Maturity Date)

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;iii.Redemption:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(i)UMC may, at its option, redeem in whole or in part at the principal amount of the bonds with an interest calculated at the rate of -0.625% per annum (the Early Redemption Amount) at any time after the third anniversary from the issue date and prior to the Maturity Date, if the closing price of the common shares of NOVATEK MICROELECTRONICS CORPORATION (NOVATEK) on the TWSE, converted into U.S. dollars at the prevailing exchange rate, for 20 out of 30 consecutive trading days prior to the publication of the redemption notice is at least 130% of the quotient of the Early Redemption Amount multiplied by the then exchange price (converted into U.S. dollars at the Fixed Exchange Rate), divided by the principal amount of the bonds. The Early Redemption Amount will be converted into NTD based on the Fixed Exchange Rate (NTD 27.902=USD 1.00), and this fixed NTD amount will then be converted using the prevailing exchange rate at the time of redemption for payment in USD.

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(ii)UMC may redeem the outstanding bonds in whole, but not in part, at the Early Redemption Amount, in the event that over 90% of the bonds have been previously redeemed, repurchased and cancelled or exchanged.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(iii)In the event of any change in ROC taxation resulting in increase of tax obligation or the necessity to pay additional interest expense or increase of additional costs to UMC, UMC may redeem the outstanding bonds in whole, but not in part, at the Early Redemption Amount. Bondholders may elect not to have their bonds redeemed but with no entitlement to any additional amounts or reimbursement of additional taxes.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(iv)All or any portion of the bonds will be redeemable at put price at the option of bondholders on July 7, 2024 at 98.14% of the principal amount.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(v)In the event that the common shares of NOVATEK cease to be listed or are suspended from trading for a period equal to or exceeding 30 consecutive trading days on the TWSE, each bondholder shall have the right to require UMC to redeem the bonds, in whole but not in part, at the Early Redemption Amount.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(vi)Upon the occurrence of a change of control (as defined in the indenture) of UMC, each bondholder shall have the right to require UMC to redeem the bonds, in whole but not in part, at the Early Redemption Amount.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;iv.Terms of Exchange:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(i)Underlying Securities: Common Shares of NOVATEK

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(ii)Exchange Period: The bonds are exchangeable at any time on or after October 8, 2021 and prior to June 27, 2026, into NOVATEK common shares.

If for any reason UMC does not have sufficient NOVATEK common shares to deliver upon the exchange of any bond, then, UMC will pay to the exchanging bondholder an amount in U.S. dollars equal to the product of the volume-weighted average closing price per NOVATEK common share on the TWSE for five consecutive trading days starting from and including the applicable exercise date (as defined in the indenture) (or such fewer number of trading days as are available within ten days starting from and including the applicable exercise date) each converted into USD at the prevailing rate on the day preceding the applicable trading day and the number of NOVATEK common shares that UMC is unable to deliver. 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 converting holder of the bonds to vote with respect to the shares it receives will be subject to certain restrictions.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(iii)Exchange Price and Adjustment: The exchange price was originally NT$731.25 per NOVATEK common share. The exchange price will be subject to adjustments upon the occurrence of certain events set out in the indenture. The exchange price was NT$479.8 per NOVATEK common share on September 30, 2025.

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;v.Redemption on the Maturity Date:

The bonds will be redeemed with 96.92% principal amount on the maturity date unless:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(i)UMC shall have redeemed the bonds at the option of UMC, or the bonds shall have been redeemed at option of the bondholder,

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(ii)The bondholders shall have exercised the exchange right before maturity, or

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(iii)The bonds shall have been redeemed or repurchased by UMC and cancelled.

On July 7, 2024, there were no bondholders that required UMC to redeem the outstanding exchangeable bonds.

As of September 30, 2025, December 31, 2024 and September 30, 2024, UMC has cumulatively repurchased and cancelled the outstanding principal amount of exchangeable bonds totaling USD 187.1 million, USD 187.1 million and USD 187.1 million, respectively with derecognition of the related derivative financial liabilities.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(14)<u>Long-Term Loans</u>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a.Details of long-term loans as of September 30, 2025, December 31, 2024 and September 30, 2024 were as follows:

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| | | | | |
|:---|:---|:---|:---|:---|
|  | As of | As of | As of |  |
| Lenders | September 30,<br>2025 | December 31,<br>2024 | September 30,<br>2024 | Redemption |
| &nbsp;&nbsp;&nbsp;NTD secured bank loans | $411583 | $494920 | $503228 | &nbsp;&nbsp;&nbsp;&nbsp;Repayable from October 19, 2015 to October 15, 2031. |
| &nbsp;&nbsp;&nbsp;RMB secured bank loans | 4185488 | 10025233 | 10191725 | &nbsp;&nbsp;&nbsp;&nbsp;Repayable from March 19, 2021 to March 18, 2031. |
| &nbsp;&nbsp;&nbsp;NTD unsecured bank loans | 8458167 | 5919266 | 6029333 | &nbsp;&nbsp;&nbsp;&nbsp;Repayable from March 24, 2023 to March 15, 2031. |
| &nbsp;&nbsp;&nbsp;USD unsecured bank loans | - | 1237490 | 1393053 | &nbsp;&nbsp;&nbsp;&nbsp;Repayable from June 24, 2023 to June 24, 2026. |
| &nbsp;&nbsp;&nbsp;&nbsp;NTD unsecured revolving bank loans (Note) | 14400000 | 17500000 | 20400000 | &nbsp;&nbsp;&nbsp;&nbsp;Repayable from March 2, 2023 to December 31, 2029. |
| &nbsp;&nbsp;&nbsp;&nbsp;USD unsecured revolving bank loans (Note) | - | 1300000 | - | &nbsp;&nbsp;&nbsp;&nbsp;Settlement due on September 26, 2029. |
| &nbsp;&nbsp;&nbsp;Subtotal | 27455238 | 36476909 | 38517339 |  |
| &nbsp;&nbsp;&nbsp;Less: Current portion | (2975986) | (5528409) | (4966850) |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total | $24479252 | $30948500 | $33550489 |  |

---

---

| | | | |
|:---|:---|:---|:---|
|  | As of | As of | As of |
|  | September 30,<br>2025 | December 31,<br>2024 | September 30,<br>2024 |
| Interest rates applied | 1.53% - 2.98% | 1.53% - 5.49% | 1.53% - 5.83% |

---

------

---

| | |
|:---|:---|
| Note: | The bank loans are available on a revolving basis during the contract period. As of September 30, 2025, December 31, 2024, and September 30, 2024, the available revolving line of credit amounted to NT$54.3 billion, NT$43.3 billion and NT$31.5 billion, respectively. The abovementioned unused line of credit were NT$39.9 billion, NT$24.5 billion and NT$11.1 billion, respectively. |

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b.Please refer to Note 8 for property, plant and equipment and right-of-use assets pledged as collateral for long-term loans.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(15)<u>Post-Employment Benefits</u>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a.Defined contribution plan

The employee pension plan under the Labor Pension Act of R.O.C. is a defined contribution plan. Pursuant to the plan, UMC and its domestic subsidiaries make monthly contributions of 6% based on each individual employee's salary or wage to employees' pension accounts. Pension benefits for employees of the Singapore branch and subsidiaries overseas are provided in accordance with the local regulations. Total pension expenses of NT$528 million, NT$501 million, NT$1,534 million and NT$1,482 million were contributed by the Company for the three-month and nine -month periods ended September 30, 2025 and 2024, respectively.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b.Defined benefit plan

The employee pension plan mandated by the Labor Standards Act of R.O.C. is a defined benefit plan. The pension benefits are disbursed based on the units of service years and average monthly salary prior to retirement according to the Labor Standards Act. 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 15th year and the total units will not exceed 45 units. The Company contributes an amount equivalent to 2% of the employees' total salaries and wages on a monthly basis to the pension fund deposited with the Bank of Taiwan under the name of a pension fund supervisory committee. The pension fund is managed by the government's designated authorities and therefore is not included in the Company's consolidated financial statements. Pension cost for an interim period is calculated on a year-to-date basis by using the actuarially determined pension cost rate at the end of the prior financial year. For the three-month and nine-month periods ended September 30, 2025 and 2024, total pension expenses of NT$7 million, NT$9 million, NT$21 million and NT$26 million, respectively, were recognized by the Company.

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(16)<u>Deferred Government Grants</u>

---

| | | | |
|:---|:---|:---|:---|
|  | As of | As of | As of |
|  | September 30,<br>2025 | December 31,<br>2024 | September 30,<br>2024 |
| &nbsp;&nbsp;&nbsp;&nbsp;Beginning balance | $3961028 | $2547022 | $2547022 |
| &nbsp;&nbsp;&nbsp;&nbsp;Arising during the period | 3751732 | 2131264 | 728498 |
| &nbsp;&nbsp;&nbsp;&nbsp;Recorded in profit or loss: |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Other operating income | (1096347) | (841091) | (642100) |
| &nbsp;&nbsp;&nbsp;&nbsp;Exchange effect | (442308) | 123833 | 131049 |
| &nbsp;&nbsp;&nbsp;&nbsp;Ending balance | $6174105 | $3961028 | $2764469 |
| &nbsp;&nbsp;&nbsp;&nbsp;Current (classified under other current liabilities) | $1492066 | $906935 | $729717 |
| &nbsp;&nbsp;&nbsp;&nbsp;Non-current (classified under other noncurrent liabilities-others) | 4682039 | 3054093 | 2034752 |
| &nbsp;&nbsp;&nbsp;&nbsp;Total | $6174105 | $3961028 | $2764469 |

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The significant government grants related to equipment acquisitions received by the Company are amortized as income over the useful lives of related equipment and recorded in the net other operating income and expenses.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(17)<u>Refund Liabilities (classified under other current liabilities)</u>

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| | | | |
|:---|:---|:---|:---|
|  | As of | As of | As of |
|  | September 30,<br>2025 | December 31,<br>2024 | September 30,<br>2024 |
| Refund liabilities | $4241533 | $3918437 | $3246813 |

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(18)<u>Provisions</u>

---

| | | | |
|:---|:---|:---|:---|
|  | As of | As of | As of |
|  | September 30,<br>2025 | December 31,<br>2024 | September 30,<br>2024 |
| &nbsp;&nbsp;&nbsp;&nbsp;Onerous Contracts (classified under other current liabilities) | $192097 | $281244 | $164893 |
| &nbsp;&nbsp;&nbsp;&nbsp;Decommissioning Liabilities (classified under other noncurrent liabilities-others) | 686871 | 695168 | 663886 |
| &nbsp;&nbsp;&nbsp;&nbsp;Others (classified under other current liabilities) | 50973 | - | - |
| Total | $929941 | $976412 | $828779 |

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------

---

| | | | |
|:---|:---|:---|:---|
|  | Onerous Contracts | Decommissioning Liabilities | Others |
| &nbsp;&nbsp;&nbsp;&nbsp;Balance as of January 1, 2025 | $281244 | $695168 | $- |
| &nbsp;&nbsp;&nbsp;&nbsp;Arising during the period | 35370 | 26708 | 50827 |
| &nbsp;&nbsp;&nbsp;&nbsp;Unused provision reversed | (120652) | - | - |
| &nbsp;&nbsp;&nbsp;&nbsp;Discount rate adjustment and unwinding of discount from the passage of time | - | 13641 | - |
| &nbsp;&nbsp;&nbsp;&nbsp;Exchange effect | (3865) | (48646) | 146 |
| Balance as of September 30, 2025 | $192097 | $686871 | $50973 |

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When the Company expects that the unavoidable costs of fulfilling the contractual obligations exceed the expected economic benefits from the contracts, the present obligation under the onerous contract are recognized and measured as provisions.

Under certain applicable agreement, the Company is obligated to dismantling and removing the items of property, plant and equipment and restoring the site on which they are located. Accordingly, the Company recognized the liability pursuant to the present value of the estimated decommissioning and restoration cost.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(19)<u>Equity</u>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a.Capital stock:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;i.UMC had 26,000 million common shares authorized to be issued as of September 30, 2025, December 31, 2024 and September 30, 2024, of which 12,556 million shares, 12,561 million shares, and 12,528 million shares were issued as of September 30, 2025, December 31, 2024 and September 30, 2024, respectively, each at a par value of NT$10.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;ii.UMC had 95 million, 115 million and 149 million ADSs, which were traded on the NYSE as of September 30, 2025, December 31, 2024 and September 30, 2024, respectively. The total number of common shares of UMC represented by all issued ADSs were 475 million shares, 576 million shares and 746 million shares as of September 30, 2025, December 31, 2024 and September 30, 2024, respectively. One ADS represents five common shares.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;iii.On December 5, 2024, UMC issued restricted stocks for its employees in a total of 33 million shares with a par value of NT$10 each. The aforementioned issuance of new shares was approved by the competent authority and the registration was completed. Please refer to Note 6(20) for the information of restricted stocks.

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;iv.In July 2025, April 2025, February 2025, October 2024, July 2024, April 2024 and February 2024, UMC has recalled and cancelled 0.18 million shares, 2 million shares, 2 million shares, 0.71 million shares, 0.12 million shares, 0.45 million shares and 0.79 million shares, respectively of unvested restricted stocks issued for employees according to the issuance plan. The aforementioned reduction of capital was approved by the competent authority and the registration was completed.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b.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:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;i.Payment of taxes.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;ii.Making up loss for preceding years.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;iii.Setting aside 10% for legal reserve, except for when accumulated legal reserve has reached UMC's paid-in capital.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;iv.Appropriating or reversing special reserve by government officials or other regulations.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;v.The remaining, in addition to the previous year's unappropriated earnings, UMC shall distribute it according to the distribution plan proposed by the Board of Directors according to the dividend policy and submitted to the shareholders' meeting for approval.

Because UMC conducts business in a capital intensive industry and continues to operate in its growth phase, the dividend policy of UMC shall be determined pursuant to factors such as the investment environment, its funding requirements, domestic and overseas competitive landscape and its capital expenditure forecast, as well as shareholders' interest, balancing dividends and UMC's long-term financial planning. The Board of Directors shall propose the distribution plan and submit it to the shareholders' meeting every year. The distribution of shareholders' dividend shall be allocated as cash dividend in the range of 20% to 100%, and stock dividend in the range of 0% to 80%.

According to the regulations of Taiwan FSC, UMC is required to appropriate a special reserve in the amount equal to the sum of debit elements under equity, such as unrealized loss on financial instruments and debit balance of exchange differences on translation of foreign operations, at every year-end. Such special reserve is prohibited from distribution. However, if any of the debit elements is reversed, the special reserve in the amount equal to the reversal may be released for earnings distribution or offsetting accumulated deficits.

------

The appropriation of earnings for 2024 and 2023 were approved by the shareholders' meeting held on May 28, 2025 and May 30, 2024, respectively. The details of appropriation were as follows:

---

| | | | | |
|:---|:---|:---|:---|:---|
|  | Appropriation of earnings<br>(in thousand NT dollars) | Appropriation of earnings<br>(in thousand NT dollars) | Cash dividend per share<br>(NT dollars) | Cash dividend per share<br>(NT dollars) |
|  | 2024 | 2023 | 2024 | 2023 |
| &nbsp;&nbsp;Legal reserve | $4738237 | $6255736 |  |  |
| &nbsp;&nbsp;Special reserve | - | (2734057) |  |  |
| &nbsp;&nbsp;Cash dividends | 35787598 | 37587102 | $2.85 | $3.00 |

---

The aforementioned 2024 and 2023 appropriation approved by shareholders' meeting were consistent with the resolutions of the Board of Directors' meeting held on February 26, 2025 and February 27, 2024, respectively.

The cash dividend per share for 2024 and 2023 were adjusted to NT$2.85016443 and NT$3.00011747 per share. The adjustments were due to the decrease of outstanding common shares from cancellation of the restricted stock in April 2025 and April 2024, respectively.

Please refer to Note 6(22) for information on the employees and directors' compensation.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;c.Non-controlling interests:

---

| | | |
|:---|:---|:---|
|  | For the nine-month periods <br>ended September 30, | For the nine-month periods <br>ended September 30, |
|  | 2025 | 2024 |
| &nbsp;&nbsp;&nbsp;&nbsp;Balance as of January 1 | $256613 | $340859 |
| &nbsp;&nbsp;&nbsp;&nbsp;Attributable to non-controlling interests: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Net income (loss) | (125893) | (67780) |
| &nbsp;&nbsp;&nbsp;&nbsp;Other comprehensive income (loss) | (119) | 72 |
| Share-based payment transactions | 1465 | 2046 |
| &nbsp;&nbsp;&nbsp;&nbsp;Changes in subsidiaries' ownership | (7152) | (2074) |
| &nbsp;&nbsp;&nbsp;&nbsp;Others | 15061 | 14041 |
| &nbsp;&nbsp;&nbsp;&nbsp;Ending balance | $139975 | $287164 |

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(20)<u>Share-Based Payment</u>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a.Restricted stock plan for employees

The equity-settled share-based payment of restricted stock plans for employees in each year are as follows:

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| | | | | | |
|:---|:---|:---|:---|:---|:---|
|  | 2024 Plan | 2022 Plan | 2022 Plan | 2020 Plan | 2020 Plan |
|  | 1st tranche | 1st tranche | 2nd tranche | 1st tranche | 2nd tranche |
| &nbsp;&nbsp;&nbsp;&nbsp;Resolution date of UMC's shareholders meeting | May 30, 2024 |  | May 27, 2022 |  | June 10, 2020 |
| &nbsp;&nbsp;&nbsp;&nbsp;Maximum shares to be issued <br>(in thousands) | 66000 | 50000 | 50000 | 233200 | 233200 |
| &nbsp;&nbsp;&nbsp;&nbsp;Eligible employees | Qualified employees of the Company  | Qualified employees<br>of the Company | Qualified employees<br>of the Company | Qualified employees<br>of UMC | Qualified employees<br>of UMC |
| &nbsp;&nbsp;&nbsp;&nbsp;Issuance of shares (in thousands) | 32956 | 23060 | 26728 | 200030  | 1268 |
| &nbsp;&nbsp;&nbsp;&nbsp;Issuance date | December 5, 2024 | December 5, 2022 | December 5, 2023 | September 1, 2020 | June 9, 2021 |
| &nbsp;&nbsp;&nbsp;&nbsp;Weighted-average fair value on the grant date <br>(NT$/ per share) | $39.27 | $44.40 | $48.90 | $21.80 | $53.00 |

---

The aforementioned restricted stock plans for employees are issued gratuitously and have a duration of four years. Beginning from the end of two years since the date of grant, those employees who fulfill both service period and performance conditions set by UMC are gradually eligible to the vested restricted stocks at certain percentage and time frame. For those employees who fail to fulfill the vesting conditions, UMC will recall and cancel their stocks without consideration. Before any employee who has been granted restricted stock award shares fulfills the vesting conditions, the rights of the restricted stocks to attendance, proposal, statement, voting and election at the shareholders' meeting shall be exercised by an entrusted institution according to a custodial agreement. Other rights of restricted stocks including but not limited to, the right to distribution of cash dividends, stock dividends, legal reserves and capital reserves, and the preemptive right for new shares of capital increase by cash, shall be the same as those of the outstanding common shares of UMC, but are restricted from selling, pledging, setting guarantee, transferring, granting, or disposing of the restricted stocks in any other ways. Related information can be obtained from the "Market Observation Post System" on the website of the TWSE.

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The 2024 restricted stock plan for employees includes market conditions. The compensation cost for these market conditions was measured at fair value initially by using Monte Carlo Simulation on the grant date. The assumptions used are as follows:

---

| | |
|:---|:---|
|  | 2024 Plan |
|  | 1st tranche |
| Share price of measurement date (NT$/ per share) | $44.60 |
| Expected volatility | 23.76% - 34.32% |
| Expected life | 2 - 4 years |
| Risk-free interest rate | 1.40% - 1.46% |

---

For the aforementioned plans, the unvested restricted stocks issued on the grant date for employees are recognized in unearned employee compensation as a transitional contra equity account and such account shall be amortized as compensation expense over the vesting period. The restricted stock plan, which was implemented in 2020, expired in June 2025. For the three-month and nine-month periods ended September 30, 2025 and 2024, the compensation costs of NT$202 million, NT$241 million, NT$624 million and NT$814 million, respectively, were recognized in expenses by the Company.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b.Stock appreciation right plan for employees

In June 2021 and September 2020, the Company executed a compensation plan to grant 1 million units and 26 million units of cash-settled stock appreciation right to qualified employees of the Company without consideration, respectively. One unit of stock appreciation right to employees represents a right to the intrinsic value of one common share of UMC. The life of the plan is four years. Beginning from the end of two years since the date of grant, those employees who fulfill both service period and performance conditions set by the Company are gradually eligible to the vested stock appreciation right at certain percentage and time frame. For those employees who fail to fulfill the vesting conditions, the Company will withdraw their rights without consideration. During the vesting period, the holders of the stock appreciation right are not entitled the same rights as those of common stock holders of UMC. The compensation plans, which were implemented in June 2021 and September 2020, respectively, expired in June 2025 and August 2024.

For the three-month and nine-month periods ended September 30, 2025 and 2024, the compensation costs of nil, NT$(4) million, NT$1 million and NT$20 million, respectively, were recognized in expenses by the Company. The liabilities for stock appreciation right recognized which were classified under other payables amounted to nil, NT$8 million and NT$8 million as of September 30, 2025, December 31, 2024 and September 30, 2024, respectively. The intrinsic value for the liabilities of vested rights was all nil.

------

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(21)<u>Operating Revenues</u>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a.Disaggregation of revenue

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;i.By Product

---

| | | |
|:---|:---|:---|
|  | For the three-month periods<br>ended September 30, | For the three-month periods<br>ended September 30, |
|  | 2025 | 2024 |
| Wafer | $56955803 | $58076307 |
| Others | 2171237 | 2408778 |
| Total | $59127040 | $60485085 |

---

---

| | | |
|:---|:---|:---|
|  | For the nine-month periods<br>ended September 30, | For the nine-month periods<br>ended September 30, |
|  | 2025 | 2024 |
| Wafer | $169044223 | $163961638 |
| Others | 6699431 | 7954836 |
| Total | $175743654 | $171916474 |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;ii.By geography

---

| | | |
|:---|:---|:---|
|  | For the three-month periods<br>ended September 30, | For the three-month periods<br>ended September 30, |
|  | 2025 | 2024 |
| &nbsp;&nbsp;&nbsp;Taiwan | $21501788 | $22361647 |
| &nbsp;&nbsp;&nbsp;&nbsp;China (includes Hong Kong) | 10110656 | 10676629 |
| &nbsp;&nbsp;&nbsp;Japan | 2476726 | 2513869 |
| &nbsp;&nbsp;&nbsp;Korea | 5654209 | 6456821 |
| &nbsp;&nbsp;&nbsp;USA | 14661299 | 15377968 |
| &nbsp;&nbsp;&nbsp;Europe | 4721616 | 3095866 |
| &nbsp;&nbsp;&nbsp;Others | 746 | 2285 |
| &nbsp;&nbsp;&nbsp;Total | $59127040 | $60485085 |

---

---

| | | |
|:---|:---|:---|
|  | For the nine-month periods<br>ended September 30, | For the nine-month periods<br>ended September 30, |
|  | 2025 | 2024 |
| &nbsp;&nbsp;&nbsp;Taiwan | $70177197 | $63189734 |
| &nbsp;&nbsp;&nbsp;&nbsp;China (includes Hong Kong) | 27385145 | 27537636 |
| &nbsp;&nbsp;&nbsp;Japan | 7994585 | 7255435 |
| &nbsp;&nbsp;&nbsp;Korea | 17566066 | 19377771 |
| &nbsp;&nbsp;&nbsp;USA | 39255629 | 43100770 |
| &nbsp;&nbsp;&nbsp;Europe | 13359945 | 11450728 |
| &nbsp;&nbsp;&nbsp;Others | 5087 | 4400 |
| &nbsp;&nbsp;&nbsp;Total | $175743654 | $171916474 |

---

The geographic breakdown of the Company's operating revenues is based on the location where the Company's customers are headquartered.

------

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;iii.By the timing of revenue recognition

---

| | | |
|:---|:---|:---|
|  | For the three-month periods<br>ended September 30, | For the three-month periods<br>ended September 30, |
|  | 2025 | 2024 |
| &nbsp;&nbsp;&nbsp;At a point in time | $58293542 | $59822466 |
| Over time | 833498 | 662619 |
| Total | $59127040 | $60485085 |

---

---

| | | |
|:---|:---|:---|
|  | For the nine-month periods<br>ended September 30, | For the nine-month periods<br>ended September 30, |
|  | 2025 | 2024 |
| &nbsp;&nbsp;&nbsp;At a point in time | $173838261 | $169804865 |
| Over time | 1905393 | 2111609 |
| Total | $175743654 | $171916474 |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b.Contract balances

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;i.Contract assets, current

---

| | | | | |
|:---|:---|:---|:---|:---|
|  | As of | As of | As of | As of |
|  | September 30,<br>2025 | December 31,<br>2024 | September 30,<br>2024 | December 31,<br>2023 |
| &nbsp;&nbsp;&nbsp;Sales of goods and services | $884893 | $1043680 | $1135295 | $1132477 |
| Less: Loss allowance | (389354) | (417967) | (405282) | (392949) |
| Net | $495539 | $625713 | $730013 | $739528 |

---

The loss allowance was assessed by the Company primarily at an amount equal to lifetime expected credit losses. The loss allowance was mainly resulted from the suspension of the joint technology development agreement due to litigation.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;ii.Contract liabilities

---

| | | | | |
|:---|:---|:---|:---|:---|
|  | As of | As of | As of | As of |
|  | September 30,<br>2025 | December 31,<br>2024 | September 30,<br>2024 | December 31,<br>2023 |
| &nbsp;&nbsp;&nbsp;Sales of goods and services | $3444406 | $2660181 | $3450528 | $3681352 |
| Current | $2969526 | $2200561 | $3006728 | $3250712 |
| Non-current | 474880 | 459620 | 443800 | 430640 |
| Total | $3444406 | $2660181 | $3450528 | $3681352 |

---

------

The movement of contract liabilities is mainly caused by the timing difference of the satisfaction of a performance of obligation and the consideration received from customers.

The Company recognized NT$1,782 million and NT$2,824 million, respectively, in revenues from the contract liabilities balance at the beginning of the period as performance obligations were satisfied for the nine-month periods ended September 30, 2025 and 2024.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;c.The Company's transaction price allocated to unsatisfied performance obligations amounted to NT$337 million and NT$207 million as of September 30, 2025 and 2024, respectively. The Company will recognize revenue as the Company satisfies its performance obligations over time that aligns with progress toward completion of a contract in the future. The estimate of the transaction price does not include any estimated amounts of variable consideration that are constrained.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;d.Asset recognized from costs to fulfill a contract with customer

As of September 30, 2025, December 31, 2024 and September 30, 2024, the Company recognized costs to fulfill engineering service contracts eligible for capitalization as other current assets which amounted to NT$1,011 million, NT$584 million and NT$678 million, respectively. Subsequently, the Company will expense from costs to fulfill a contract to operating costs when the related obligations are satisfied.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(22)<u>Operating Costs and Expenses</u>

The Company's employee benefit, depreciation and amortization expenses are summarized as follows:

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
|  | For the three-month periods ended September 30, | For the three-month periods ended September 30, | For the three-month periods ended September 30, | For the three-month periods ended September 30, | For the three-month periods ended September 30, | For the three-month periods ended September 30, |
|  | 2025 | 2025 | 2025 | 2024 | 2024 | 2024 |
|  | Operating costs | Operating expenses | Total | Operating costs  | Operating expenses | Total |
| &nbsp;&nbsp;&nbsp;&nbsp;Employee benefit expenses |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Salaries | $6367098 | $2800939 | $9168037 | $6629716 | $3012072 | $9641788 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Labor and health insurance | 324376 | 128435 | 452811 | 337145 | 130137 | 467282 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pension | 403207 | 131684 | 534891 | 381965 | 128113 | 510078 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Other employee benefit expenses | 79355 | 32355 | 111710 | 84092 | 37680 | 121772 |
| Depreciation  | 13495707 | 780259 | 14275966 | 11620061 | 405648 | 12025709 |
| Amortization  | 336317 | 351197 | 687514 | 267901 | 375183 | 643084 |

---

------

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
|  | For the nine-month periods ended September 30, | For the nine-month periods ended September 30, | For the nine-month periods ended September 30, | For the nine-month periods ended September 30, | For the nine-month periods ended September 30, | For the nine-month periods ended September 30, |
|  | 2025 | 2025 | 2025 | 2024 | 2024 | 2024 |
|  | Operating costs | Operating expenses | Total | Operating costs  | Operating expenses | Total |
| &nbsp;&nbsp;&nbsp;&nbsp;Employee benefit expenses |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Salaries | $18292451 | $7832627 | $26125078 | $19242479 | $8653491 | $27895970 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Labor and health insurance | 968055 | 371691 | 1339746 | 1058733 | 402841 | 1461574 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pension | 1171882 | 383341 | 1555223 | 1131035 | 376715 | 1507750 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Other employee benefit expenses | 244725 | 103119 | 347844 | 244692 | 107551 | 352243 |
| Depreciation  | 39303421 | 2135746 | 41439167 | 31526566 | 1173469 | 32700035 |
| Amortization  | 977786 | 1116396 | 2094182 | 719778 | 1183145 | 1902923 |

---

According to UMC's Articles of Incorporation, the employees and directors' compensation shall be distributed in the following order:

UMC shall allocate no less than 5% of profit as employees' compensation and no more than 0.2% of profit as directors' compensation for each profitable fiscal year after offsetting any cumulative losses; no less than 30% of the aforementioned profit as employees' compensation should be allocated to entry-level employees. The aforementioned employees' compensation will be distributed in shares or cash. The employees of UMC's subsidiaries who fulfill specific requirements stipulated by the Board of Directors may be granted such compensation. Directors may only receive compensation in cash. UMC may, by a resolution adopted by a majority vote at a meeting of the Board of Directors attended by two-thirds of the total number of directors, distribute the aforementioned employees and directors' compensation and report to the shareholders' meeting for such distribution.

The Company recognized the employees and directors' compensation in the profit or loss with corresponding other payables during the periods when earned for the nine-month periods ended September 30, 2025 and 2024. The Board of Directors estimates the amount by taking into consideration the Articles of Incorporation, government regulations and industry averages. If the Board of Directors resolves to distribute employee compensation through stock, the number of stock distributed is calculated based on total employee compensation divided by the closing price of the day before the Board of Directors' meeting. If the Board of Directors subsequently modifies the estimates significantly, the Company will recognize the change as an adjustment in the profit or loss in the subsequent period.

------

The distributions of employees and directors' compensation for 2024 and 2023 were reported to the shareholders' meeting held on May 28, 2025 and May 30, 2024, respectively. The details of distribution were as follows:

---

| | | |
|:---|:---|:---|
|  | 2024 | 2023 |
| &nbsp;&nbsp;&nbsp;&nbsp;Employees' compensation – Cash | $4509603 | $5439059 |
| &nbsp;&nbsp;&nbsp;&nbsp;Directors' compensation | 45000 | 45000 |

---

The aforementioned 2024 and 2023 employees and directors' compensation reported during the shareholders' meeting were consistent with the resolutions of the Board of Directors' meeting held on February 26, 2025 and February 27, 2024.

Information relevant to the aforementioned employees and directors' compensation can be obtained from the "Market Observation Post System" on the website of the TWSE.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(23)<u>Net Other Operating Income and Expenses</u>

---

| | | |
|:---|:---|:---|
|  | For the three-month periods<br>ended September 30, | For the three-month periods<br>ended September 30, |
|  | 2025 | 2024 |
| Government grants | $415712 | $229693 |
| Rental income from property, plant and equipment | 47027 | 50598 |
| Gain on disposal of property, plant and equipment | 63401 | 20819 |
| Others | (58647) | (71503) |
| Total | $467493 | $229607 |

---

---

| | | |
|:---|:---|:---|
|  | For the nine-month periods<br>ended September 30, | For the nine-month periods<br>ended September 30, |
|  | 2025 | 2024 |
| Government grants | $1276448 | $947186 |
| Rental income from property, plant and equipment | 141638 | 151329 |
| Gain on disposal of property, plant and equipment | 87732 | 58211 |
| Others | (167222) | (194994) |
| Total | $1338596 | $961732 |

---

------

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(24)<u>Non-Operating Income and Expenses</u>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a.Other gains and losses

---

| | | |
|:---|:---|:---|
|  | For the three-month periods<br>ended September 30, | For the three-month periods<br>ended September 30, |
|  | 2025 | 2024 |
| &nbsp;&nbsp;&nbsp;&nbsp;Gain on valuation of financial assets and liabilities at fair value through profit or loss | $1181767 | $1182804 |
| Others | 17195 | 417 |
| Total | $1198962 | $1183221 |

---

---

| | | |
|:---|:---|:---|
|  | For the nine-month periods<br>ended September 30, | For the nine-month periods<br>ended September 30, |
|  | 2025 | 2024 |
| &nbsp;&nbsp;&nbsp;&nbsp;Gain on valuation of financial assets and liabilities at fair value through profit or loss | $97300 | $541274 |
| Others | 15195 | 20344 |
| Total | $112495 | $561618 |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b.Finance costs

---

| | | |
|:---|:---|:---|
|  | For the three-month periods<br>ended September 30, | For the three-month periods<br>ended September 30, |
|  | 2025 | 2024 |
| Interest expenses |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Bonds payable | $148778 | $119975 |
| &nbsp;&nbsp;&nbsp;&nbsp;Bank loans | 232591 | 290068 |
| &nbsp;&nbsp;&nbsp;&nbsp;Lease liabilities  | 47278 | 52278 |
| &nbsp;&nbsp;&nbsp;&nbsp;Others | 4546 | 4596 |
| Financial expenses | 20935 | 20306 |
| Total | $454128 | $487223 |

---

---

| | | |
|:---|:---|:---|
|  | For the nine-month periods<br>ended September 30, | For the nine-month periods<br>ended September 30, |
|  | 2025 | 2024 |
| Interest expenses |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Bonds payable | $370814 | $390591 |
| &nbsp;&nbsp;&nbsp;&nbsp;Bank loans | 612243 | 671647 |
| &nbsp;&nbsp;&nbsp;&nbsp;Lease liabilities  | 146397 | 144538 |
| &nbsp;&nbsp;&nbsp;&nbsp;Others | 14067 | 13572 |
| Financial expenses | 69935 | 76704 |
| Total | $1213456 | $1297052 |

---

------

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(25)<u>Components of Other Comprehensive Income (Loss)</u>

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
|  | For the three-month period ended September 30, 2025 | For the three-month period ended September 30, 2025 | For the three-month period ended September 30, 2025 | For the three-month period ended September 30, 2025 | For the three-month period ended September 30, 2025 |
|  | Arising during the period | Reclassification adjustments during the period | Other comprehensive income (loss), before tax | Income tax effect  | Other comprehensive income (loss), net of tax |
| &nbsp;&nbsp;&nbsp;&nbsp;Items that will not be reclassified subsequently to profit or loss: |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Unrealized gains or losses from equity instruments investments measured at fair value through other comprehensive income | $(1251557) | $- | $(1251557) | $(112489) | $(1364046) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Share of other comprehensive income (loss) of associates and joint ventures which will not be reclassified subsequently to profit or loss | 1757268 | - | 1757268 | - | 1757268 |
| &nbsp;&nbsp;&nbsp;&nbsp;Items that may be reclassified subsequently to profit or loss: |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Exchange differences on translation of foreign operations | 8414143 | - | 8414143 | (90202) | 8323941 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Share of other comprehensive income (loss) of associates and joint ventures which may be reclassified subsequently to profit or loss | 293027 | (1) | 293026 | (4919) | 288107 |
| &nbsp;&nbsp;&nbsp;&nbsp;Total other comprehensive income (loss) | $9212881 | $(1) | $9212880 | $(207610) | $9005270 |

---

------

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
|  | For the three-month period ended September 30, 2024 | For the three-month period ended September 30, 2024 | For the three-month period ended September 30, 2024 | For the three-month period ended September 30, 2024 | For the three-month period ended September 30, 2024 |
|  | Arising during the period | Reclassification adjustments during the period | Other comprehensive income (loss), before tax | Income tax effect  | Other comprehensive income (loss), net of tax |
| &nbsp;&nbsp;&nbsp;&nbsp;Items that will not be reclassified subsequently to profit or loss: |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Unrealized gains or losses from equity instruments investments measured at fair value through other comprehensive income | $(1719254) | $- | $(1719254) | $(18694) | $(1737948) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Share of other comprehensive income (loss) of associates and joint ventures which will not be reclassified subsequently to profit or loss | (614105) | - | (614105) | - | (614105) |
| &nbsp;&nbsp;&nbsp;&nbsp;Items that may be reclassified subsequently to profit or loss: |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Exchange differences on translation of foreign operations | 590295 | - | 590295 | (493642) | 96653 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Share of other comprehensive income (loss) of associates and joint ventures which may be reclassified subsequently to profit or loss | (46885) | - | (46885) | 3634 | (43251) |
| &nbsp;&nbsp;&nbsp;&nbsp;Total other comprehensive income (loss) | $(1789949) | $- | $(1789949) | $(508702) | $(2298651) |

---

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
|  | For the nine-month period ended September 30, 2025 | For the nine-month period ended September 30, 2025 | For the nine-month period ended September 30, 2025 | For the nine-month period ended September 30, 2025 | For the nine-month period ended September 30, 2025 |
|  | Arising during the period | Reclassification adjustments during the period | Other comprehensive income (loss), before tax | Income tax effect  | Other comprehensive income (loss), net of tax |
| &nbsp;&nbsp;&nbsp;&nbsp;Items that will not be reclassified subsequently to profit or loss: |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Unrealized gains or losses from equity instruments investments measured at fair value through other comprehensive income | $(1385697) | $- | $(1385697) | $(56208) | $(1441905) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Share of other comprehensive income (loss) of associates and joint ventures which will not be reclassified subsequently to profit or loss | 1179449 | - | 1179449 | - | 1179449 |

---

------

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
|  | For the nine-month period ended September 30, 2025 | For the nine-month period ended September 30, 2025 | For the nine-month period ended September 30, 2025 | For the nine-month period ended September 30, 2025 | For the nine-month period ended September 30, 2025 |
|  | Arising during the period | Reclassification adjustments during the period | Other comprehensive income (loss), before tax | Income tax effect  | Other comprehensive income (loss), net of tax |
| &nbsp;&nbsp;&nbsp;&nbsp;Items that may be reclassified subsequently to profit or loss: |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Exchange differences on translation of foreign operations | $(13125780) | $- | $(13125780) | $176384 | $(12949396) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Share of other comprehensive income (loss) of associates and joint ventures which may be reclassified subsequently to profit or loss | (380219) | 7 | (380212) | 11526 | (368686) |
| &nbsp;&nbsp;&nbsp;&nbsp;Total other comprehensive income (loss) | $(13712247) | $7 | $(13712240) | $131702 | $(13580538) |

---

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
|  | For the nine-month period ended September 30, 2024 | For the nine-month period ended September 30, 2024 | For the nine-month period ended September 30, 2024 | For the nine-month period ended September 30, 2024 | For the nine-month period ended September 30, 2024 |
|  | Arising during the period | Reclassification adjustments during the period | Other comprehensive income (loss), before tax | Income tax effect  | Other comprehensive income (loss), net of tax |
| &nbsp;&nbsp;&nbsp;&nbsp;Items that will not be reclassified subsequently to profit or loss: |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Unrealized gains or losses from equity instruments investments measured at fair value through other comprehensive income | $(331922) | $- | $(331922) | $21337 | $(310585) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Share of other comprehensive income (loss) of associates and joint ventures which will not be reclassified subsequently to profit or loss | 646834 | - | 646834 | - | 646834 |
| &nbsp;&nbsp;&nbsp;&nbsp;Items that may be reclassified subsequently to profit or loss: |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Exchange differences on translation of foreign operations | 6571602 | - | 6571602 | (150995) | 6420607 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Share of other comprehensive income (loss) of associates and joint ventures which may be reclassified subsequently to profit or loss | 279124 | - | 279124 | (5426)  | 273698 |
| &nbsp;&nbsp;&nbsp;&nbsp;Total other comprehensive income (loss) | $7165638 | $- | $7165638 | $(135084) | $7030554 |

---

------

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(26)<u>Income Tax</u>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a.The major components of income tax for the three-month and nine-month periods ended September 30, 2025 and 2024 were as follows:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;i.Income tax expense (benefit) recorded in profit or loss

---

| | | |
|:---|:---|:---|
|  | For the three-month periods<br>ended September 30, | For the three-month periods<br>ended September 30, |
|  | 2025 | 2024 |
| Current income tax expense (benefit): |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Current income tax charge | $1364449 | $1818815 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Adjustments in respect of current income tax of prior periods | (85) | 374 |
| Deferred income tax expense (benefit): |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Deferred income tax related to origination and reversal of temporary differences | (1640232) | 538157 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Deferred income tax related to recognition and derecognition of tax losses and unused tax credits | (24933) | (234719) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Deferred income tax related to changes in tax rates | 220 | - |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Adjustment of prior year's deferred income tax  | 14 | (39) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Deferred income tax arising from write-down or reversal of write-down of deferred tax assets | 257 | (158) |
| &nbsp;&nbsp;&nbsp;&nbsp;Income tax expense (benefit) recorded in profit or loss | $(300310) | $2122430 |

---

---

| | | |
|:---|:---|:---|
|  | For the nine-month periods <br>ended September 30, | For the nine-month periods <br>ended September 30, |
|  | 2025 | 2024 |
| Current income tax expense (benefit): |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Current income tax charge | $3961779 | $5110109 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Adjustments in respect of current income tax of prior periods | 58639 | (124279) |
| Deferred income tax expense (benefit): |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Deferred income tax related to origination and reversal of temporary differences | (1388137) | 2325712 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Deferred income tax related to recognition and derecognition of tax losses and unused tax credits | 28656 | (234719) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Deferred income tax related to changes in tax rates | (15612) | 69 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Adjustment of prior year's deferred income tax  | (22066) | (3494) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Deferred income tax arising from write-down or reversal of write-down of deferred tax assets | (14241) | (14566) |
| &nbsp;&nbsp;&nbsp;&nbsp;Income tax expense recorded in profit or loss | $2609018 | $7058832 |

---

------

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;ii.Deferred income tax related to components of other comprehensive income (loss)

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(i)Items that will not be reclassified subsequently to profit or loss:

---

| | | |
|:---|:---|:---|
|  | For the three-month periods<br>ended September 30, | For the three-month periods<br>ended September 30, |
|  | 2025 | 2024 |
| &nbsp;&nbsp;&nbsp;&nbsp;Unrealized gains or losses from equity instruments investments measured at fair value through other comprehensive income | $(112489) | $(18694) |

---

---

| | | |
|:---|:---|:---|
|  | For the nine-month periods <br>ended September 30, | For the nine-month periods <br>ended September 30, |
|  | 2025 | 2024 |
| &nbsp;&nbsp;&nbsp;&nbsp;Unrealized gains or losses from equity instruments investments measured at fair value through other comprehensive income | $(56208) | $21337 |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(ii)Items that may be reclassified subsequently to profit or loss:

---

| | | |
|:---|:---|:---|
|  | For the three-month periods<br>ended September 30, | For the three-month periods<br>ended September 30, |
|  | 2025 | 2024 |
| &nbsp;&nbsp;&nbsp;&nbsp;Exchange differences on translation of foreign operations | $(90202) | $(493642) |
| &nbsp;&nbsp;&nbsp;&nbsp;Share of other comprehensive income (loss) of associates and joint ventures which may be reclassified subsequently to profit or loss | (4919) | 3634 |
| &nbsp;&nbsp;&nbsp;&nbsp;Income tax related to items that may be reclassified subsequently to profit or loss | $(95121) | $(490008) |

---

---

| | | |
|:---|:---|:---|
|  | For the nine-month periods <br>ended September 30, | For the nine-month periods <br>ended September 30, |
|  | 2025 | 2024 |
| &nbsp;&nbsp;&nbsp;&nbsp;Exchange differences on translation of foreign operations | $176384 | $(150995) |
| &nbsp;&nbsp;&nbsp;&nbsp;Share of other comprehensive income (loss) of associates and joint ventures which may be reclassified subsequently to profit or loss | 11526 | (5426) |
| &nbsp;&nbsp;&nbsp;&nbsp;Income tax related to items that may be reclassified subsequently to profit or loss | $187910 | $(156421) |

---

------

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b.The Company is subject to taxation in Taiwan and other foreign jurisdictions. As of September 30, 2025, income tax returns of UMC and its subsidiaries in Taiwan have been examined by the tax authorities through 2022, while in other foreign jurisdictions, relevant tax authorities have completed the examination through 2014.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;c.UMC's branch in Singapore obtained three tax incentives granted by the Singapore government for a period of ten years from July and August 2025. The qualifying incomes are either tax-exempt or taxed at concessionary tax rate. The incentive period will end in July 2035.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;d.Pillar Two legislation has been enacted or substantively enacted in certain jurisdictions and was gradually coming into effect or implemented. There was no material impact on current income tax expense of the Company for the nine-month periods ended September 30, 2025 and 2024.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(27)<u>Earnings Per Share</u>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a.Earnings per share-basic

---

| | | |
|:---|:---|:---|
|  | For the three-month periods<br>ended September 30, | For the three-month periods<br>ended September 30, |
|  | 2025 | 2024 |
| Net income attributable to the parent company | $14982060 | $14472042 |
| &nbsp;&nbsp;&nbsp;&nbsp;Weighted-average number of ordinary shares for basic earnings per share (thousand shares) | 12485163 | 12436437 |
| Earnings per share-basic (NTD) | $1.20 | $1.16 |

---

---

| | | |
|:---|:---|:---|
|  | For the nine-month periods<br>ended September 30, | For the nine-month periods<br>ended September 30, |
|  | 2025 | 2024 |
| Net income attributable to the parent company | $31661331 | $38714347 |
| &nbsp;&nbsp;&nbsp;&nbsp;Weighted-average number of ordinary shares for basic earnings per share (thousand shares) | 12484942 | 12421625 |
| Earnings per share-basic (NTD) | $2.54 | $3.12 |

---

------

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b.Earnings per share-diluted

---

| | | |
|:---|:---|:---|
|  | For the three-month periods<br>ended September 30, | For the three-month periods<br>ended September 30, |
|  | 2025 | 2024 |
| Net income attributable to the parent company | $14982060 | $14472042 |
| &nbsp;&nbsp;&nbsp;&nbsp;Weighted-average number of ordinary shares for basic earnings per share (thousand shares) | 12485163 | 12436437 |
| Effect of dilution |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Restricted stocks for employees | 29068 | 67480 |
| &nbsp;&nbsp;&nbsp;&nbsp;Employees' compensation | 42115 | 55441 |
| &nbsp;&nbsp;&nbsp;&nbsp;Weighted-average number of ordinary shares after dilution (thousand shares) | 12556346 | 12559358 |
| Earnings per share-diluted (NTD) | $1.19 | $1.15 |

---

---

| | | |
|:---|:---|:---|
|  | For the nine-month periods<br>ended September 30, | For the nine-month periods<br>ended September 30, |
|  | 2025 | 2024 |
| Net income attributable to the parent company | $31661331 | $38714347 |
| &nbsp;&nbsp;&nbsp;&nbsp;Weighted-average number of ordinary shares for basic earnings per share (thousand shares) | 12484942 | 12421625 |
| Effect of dilution |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Restricted stocks for employees | 31798 | 81453 |
| &nbsp;&nbsp;&nbsp;&nbsp;Employees' compensation | 63478 | 79014 |
| &nbsp;&nbsp;&nbsp;&nbsp;Weighted-average number of ordinary shares after dilution (thousand shares) | 12580218 | 12582092 |
| Earnings per share-diluted (NTD) | $2.52 | $3.08 |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(28)<u>Reconciliation of Liabilities Arising from Financing Activities</u>

<u>For the nine-month period ended September 30, 2025:</u>

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
|  |  |  | Non-cash changes | Non-cash changes |  |
| Items | As of<br>January 1, 2025 | Cash Flows | Foreign exchange | Others<br>(Note A) | As of <br>September 30,<br>2025 |
| Short-term loans | $8515000 | $7507086 | $38099 | $- | $16060185 |
| &nbsp;&nbsp;&nbsp;&nbsp;Long-term loans (current portion included) | 36476909 | (8418027) | (603644) | - | 27455238 |
| &nbsp;&nbsp;&nbsp;&nbsp;Bonds payable (current portion included) | 30051568 | 10194520 | - | 141878 | 40387966 |
| &nbsp;&nbsp;&nbsp;&nbsp;Guarantee deposits (current portion included) | 42874494 | (661473) | (1912833) | - | 40,300,188<br>(Note B) |
| Lease liabilities  | 6419016 | (636867) | (111860) | 423,298<br>(Note C) | 6093587 |

---

------

<u>For the nine-month period ended September 30, 2024:</u>

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
|  |  |  | Non-cash changes | Non-cash changes |  |
| Items | As of<br>January 1, 2024 | Cash Flows | Foreign exchange | Others<br>(Note A) | As of <br>September 30,<br>2024 |
| Short-term loans | $13530000 | $3538900 | $- | $- | $17068900 |
| &nbsp;&nbsp;&nbsp;&nbsp;Long-term loans (current portion included) | 22883344 | 15120017 | 513978 | - | 38517339 |
| &nbsp;&nbsp;&nbsp;&nbsp;Bonds payable (current portion included) | 38359352 | (5100065) | - | 144130 | 33403417 |
| &nbsp;&nbsp;&nbsp;&nbsp;Guarantee deposits (current portion included) | 41599386 | (355623) | 886457 | - | 42,130,220<br>(Note B) |
| Lease liabilities  | 5393187 | (526439) | 190739 | 1,453,094<br>(Note C) | 6510581 |

---

Note A: Other non-cash changes mainly consisted of discount amortization measured by the effective interest method.

Note B: Guarantee deposits mainly consisted of deposits of capacity reservation.

Note C: Mainly due to the addition to lease properties.

7.<u>RELATED PARTY TRANSACTIONS</u>

In addition to those disclosed in other notes, the following is a summary of transactions between the Company and related parties during the financial reporting periods:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1)<u>Name and Relationship of Related Parties</u>

---

| | |
|:---|:---|
| Name of related parties | Relationship with the Company |
| FARADAY TECHNOLOGY CORP. and its Subsidiaries | &nbsp;&nbsp;&nbsp;Associate |
| &nbsp;&nbsp;&nbsp;&nbsp;UNIMICRON TECHNOLOGY CORP. | &nbsp;&nbsp;&nbsp;Associate |
| &nbsp;&nbsp;&nbsp;&nbsp;SILICON INTEGRATED SYSTEMS CORP. and its Subsidiaries | &nbsp;&nbsp;&nbsp;Associate |
| &nbsp;&nbsp;&nbsp;&nbsp;YANN YUAN INVESTMENT CO., LTD. | &nbsp;&nbsp;&nbsp;Associate |
| PURIUMFIL INC. | &nbsp;&nbsp;&nbsp;Associate |
| TRANSLINK CAPITAL PARTNERS I, L.P. | &nbsp;&nbsp;&nbsp;Associate |
| PHOTRONICS DNP MASK CORPORATION | &nbsp;&nbsp;&nbsp;Other related party |

---

------

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2)<u>Significant Related Party Transactions</u>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a.Operating transactions

<u>Operating revenues</u>

---

| | | |
|:---|:---|:---|
|  | For the three-month periods<br>ended September 30, | For the three-month periods<br>ended September 30, |
|  | 2025 | 2024 |
| Associates | $1224189 | $960346 |

---

---

| | | |
|:---|:---|:---|
|  | For the nine-month periods<br>ended September 30, | For the nine-month periods<br>ended September 30, |
|  | 2025 | 2024 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Associates | $3122658 | $2398699 |

---

<u>Accounts receivable, net</u>

---

| | | | |
|:---|:---|:---|:---|
|  | As of | As of | As of |
|  | September 30,<br>2025 | December 31,<br>2024 | September 30,<br>2024 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Associates |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;FARADAY TECHNOLOGY CORP. and its Subsidiaries |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;FARADAY TECHNOLOGY CORP. | $331927 | $456332 | $413696 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;ARTERY TECHNOLOGY CORPORATION, LTD. | 159559 | 148508 | 189210 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Others | 2153 | 493 | - |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;SILICON INTEGRATED SYSTEMS CORP. and its Subsidiaries |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;UNITEDDS SEMICONDUCTOR (SHANDONG) CO., LTD. | 69213 | 10227 | 93321 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Others | 39348 | 4453 | 4669 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total | $602200 | $620013 | $700896 |

---

The sales price to the above related parties was determined through mutual agreement in reference to market conditions. The collection periods for domestic sales to related parties were month-end 30 - 60 days, while the collection periods for overseas sales were month-end 30 - 60 days.

------

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b.Significant asset transactions

<u>Acquisition of investments accounted for under the equity method</u>

For the three-month periods ended September 30, 2025 and 2024: None.

For the nine-month periods ended September 30, 2025: None.

---

| | | | |
|:---|:---|:---|:---|
|  | Transaction<br>underlying | Trading Volume<br>(In thousands <br>of shares) | |
|  | Transaction<br>underlying | Trading Volume<br>(In thousands <br>of shares) | Purchase price <br>For the nine-month period<br>ended September 30, 2024 |
| &nbsp;&nbsp;&nbsp;Associates  | Stock of FARADAY | 1723 | $533973 |

---

Please refer to Note 6(7) for the relevant information.

<u>Acquisition of intangible assets</u>

---

| | | |
|:---|:---|:---|
|  | Purchase price | Purchase price |
|  | For the three-month periods<br>ended September 30, | For the three-month periods<br>ended September 30, |
|  | 2025 | 2024 |
| FARADAY TECHNOLOGY CORP. | $62794 | $50284 |

---

---

| | | |
|:---|:---|:---|
|  | Purchase price | Purchase price |
|  | For the nine-month periods<br>ended September 30, | For the nine-month periods<br>ended September 30, |
|  | 2025 | 2024 |
| FARADAY TECHNOLOGY CORP. | $170491 | $169419 |

---

<u>Disposal of subsidiary ownership</u>

For the three-month and nine-month periods ended September 30, 2025: None.

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
|  |  |  | Disposal price | Disposal price | Gain on disposal | Gain on disposal |
|  | &nbsp;&nbsp;Transaction<br>underlying | Trading Capital Amount<br>(In thousands<br>of dollars) | For the three-month period ended<br>September 30, 2024 | For the nine-month period ended<br>September 30, 2024 | For the three-month period ended<br>September 30, 2024 | For the nine-month period ended<br>September 30, 2024 |
| Associates |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Subsidiary of SIS - SIS SEMICONDUCTOR (SHANDONG) CO., LTD. | Ownership of UDS | RMB 30,000 | $341387 | $341387 | $352 | $352 |

---

------

On April 2, 2024, the Board of Directors of HEJIAN approved to dispose of its 100% of ownership interest in the subsidiary, UDS. The disposal was completed in August 2024.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;c.Others

<u>Mask expenditure</u>

---

| | | |
|:---|:---|:---|
|  | For the three-month periods<br>ended September 30, | For the three-month periods<br>ended September 30, |
|  | 2025 | 2024 |
| Other related party | $478024 | $459803 |

---

---

| | | |
|:---|:---|:---|
|  | For the nine-month periods<br>ended September 30, | For the nine-month periods<br>ended September 30, |
|  | 2025 | 2024 |
| Other related party | $1690596 | $1754169 |

---

<u>Other payables of mask expenditure</u>

---

| | | | |
|:---|:---|:---|:---|
|  | As of | As of | As of |
|  | September 30,<br>2025 | December 31,<br>2024 | September 30,<br>2024 |
| Other related party | $608336 | $621737 | $531017 |

---

<u>Cash dividends from investments accounted for under the equity method</u>

---

| | | |
|:---|:---|:---|
|  | For the nine-month periods<br>ended September 30, | For the nine-month periods<br>ended September 30, |
|  | 2025 | 2024 |
| &nbsp;&nbsp;&nbsp;&nbsp;Associates | $592337 | $973706 |

---

As of September 30, 2025, December 31, 2024 and September 30, 2024, all of the abovementioned cash dividends has been received.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;d.Key management personnel compensation

---

| | | |
|:---|:---|:---|
|  | For the three-month periods<br>ended September 30, | For the three-month periods<br>ended September 30, |
|  | 2025 | 2024 |
| Short-term employee benefits | $241602 | $392963 |
| Post-employment benefits | 633 | 655 |
| Share-based payment | 80256 | 85530 |
| Others | 85 | 110 |
| Total | $322576 | $479258 |

---

------

---

| | | |
|:---|:---|:---|
|  | For the nine-month periods <br>ended September 30, | For the nine-month periods <br>ended September 30, |
|  | 2025 | 2024 |
| Short-term employee benefits | $787681 | $1043445 |
| Post-employment benefits | 1835 | 2028 |
| Share-based payment | 243337 | 312299 |
| Others | 263 | 307 |
| Total | $1033116 | $1358079 |

---

8.<u>ASSETS PLEDGED AS COLLATERAL</u>

The following table lists assets of the Company pledged as collateral:

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
|  | &nbsp;&nbsp;&nbsp;&nbsp;Carrying Amount | &nbsp;&nbsp;&nbsp;&nbsp;Carrying Amount | &nbsp;&nbsp;&nbsp;&nbsp;Carrying Amount |  |  |
|  | &nbsp;&nbsp;&nbsp;&nbsp;As of | &nbsp;&nbsp;&nbsp;&nbsp;As of | &nbsp;&nbsp;&nbsp;&nbsp;As of |  |  |
|  | September 30,<br>2025 | December 31,<br>2024 | September 30,<br>2024 | &nbsp;&nbsp;&nbsp;&nbsp;Party to which asset(s)<br>was pledged | &nbsp;&nbsp;&nbsp;&nbsp;Purpose of pledge |
| &nbsp;&nbsp;&nbsp;&nbsp;Refundable Deposits<br>(Time deposit) | $1013289 | $1009000 | $1009000 | &nbsp;&nbsp;Customs | &nbsp;&nbsp;Customs duty guarantee |
| &nbsp;&nbsp;&nbsp;&nbsp;Refundable Deposits<br>(Time deposit) | 328732 | 237051 | 237051 | &nbsp;&nbsp;Science Park Bureau | &nbsp;&nbsp;Collateral for land lease |
| &nbsp;&nbsp;&nbsp;&nbsp;Refundable Deposits<br>(Time deposit) | 18647 | 18647 | 18647 | &nbsp;&nbsp;Science Park Bureau | &nbsp;&nbsp;Collateral for dormitory lease |
| &nbsp;&nbsp;&nbsp;&nbsp;Refundable Deposits<br>(Time deposit) | 64950 | 64950 | 64950 | &nbsp;&nbsp;National Property Administration, Ministry of Finance | &nbsp;&nbsp;Guarantee for the application of national non-public use land for development |
| &nbsp;&nbsp;&nbsp;&nbsp;Refundable Deposits<br>(Time deposit) | - | 8118 | 8118 | &nbsp;&nbsp;Bureau of Land Administration, Tainan City Government | &nbsp;&nbsp;Guarantee for the application of national non-public use land for development |
| &nbsp;&nbsp;&nbsp;&nbsp;Refundable Deposits<br>(Time deposit) | 47033 | 38073 | 38073 | &nbsp;&nbsp;Liquefied Natural Gas Business Division, CPC Corporation, Taiwan | &nbsp;&nbsp;Energy resources guarantee |
| &nbsp;&nbsp;&nbsp;&nbsp;Refundable Deposits<br>(Time deposit) | 212940 | 490950 | 474000 | &nbsp;&nbsp;CTBC Bank Singapore Branch | &nbsp;&nbsp;Collateral for letter of credit |
| &nbsp;&nbsp;&nbsp;&nbsp;Buildings | 3990789 | 4377176 | 4488982 | &nbsp;&nbsp;Taiwan Cooperative Bank and Secured Syndicated Loans from China Development Bank and 6 others | &nbsp;&nbsp;Collateral for long-term loans |

---

------

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
|  | &nbsp;&nbsp;&nbsp;&nbsp;Carrying Amount | &nbsp;&nbsp;&nbsp;&nbsp;Carrying Amount | &nbsp;&nbsp;&nbsp;&nbsp;Carrying Amount |  |  |
|  | &nbsp;&nbsp;&nbsp;&nbsp;As of | &nbsp;&nbsp;&nbsp;&nbsp;As of | &nbsp;&nbsp;&nbsp;&nbsp;As of |  |  |
|  | September 30,<br>2025 | December 31,<br>2024 | September 30,<br>2024 | &nbsp;&nbsp;&nbsp;&nbsp;Party to which asset(s)<br>was pledged | &nbsp;&nbsp;&nbsp;&nbsp;Purpose of pledge |
| &nbsp;&nbsp;&nbsp;&nbsp;Machinery and equipment | $2470499 | $4057201 | $4674070 | &nbsp;&nbsp;Taiwan Cooperative Bank, Mega International Commercial Bank, KGI Bank, First Commercial Bank, Shanghai Commercial Bank, CTBC Bank and Secured Syndicated Loans from China Development Bank and 6 others | &nbsp;&nbsp;Collateral for long-term loans |
| &nbsp;&nbsp;&nbsp;&nbsp;Right-of-use assets | 251947 | 269152 | 273693 | &nbsp;&nbsp;Secured Syndicated Loans from China Development Bank and 6 others | &nbsp;&nbsp;Collateral for long-term loans |
| &nbsp;&nbsp;&nbsp;&nbsp;Total | $8398826 | $10570318 | $11286584 |  |  |

---

9.<u>SIGNIFICANT CONTINGENCIES AND UNRECOGNIZED CONTRACT COMMITMENTS</u>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1)As of September 30, 2025, amounts available under unused letters of credit were NT$0.2 billion.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2)As of September 30, 2025, the Company entrusted financial institutions to open performance guarantee, mainly related to the customs tax and electricity supply guarantee, amounting to NT$1.0 billion.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(3)The Company entered into several patent license agreements and development contracts of intellectual property for a total contract amount of approximately NT$3.9 billion. As of September 30, 2025, the portion of royalties and development fees not yet recognized was NT$1.3 billion.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(4)The Company entered into several construction contracts for the expansion of its operations. As of September 30, 2025, these construction contracts amounted to approximately NT$41.3 billion and the portion of the contracts not yet recognized was approximately NT$6.8 billion.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(5)The Company entered into several wafer fabrication contracts with its customers. According to the contracts, the Company shall provide agreed production capacity with the customers.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(6)The Company has entered into long-term contracts with multiple suppliers for the purchase of renewable energy. The relative duration, anticipated quantity and pricing of the energy purchase are specified in the contracts.

------

10.<u>SIGNIFICANT DISASTER LOSS</u>

None.

11.<u>SIGNIFICANT SUBSEQUENT EVENTS</u>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1)From October 1 to October 29, 2025, the Company made repayments of the long-term loans in a total amount of NT$5,017 million which were classified as non-current liabilities.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2)In late October 2025, UMC issued the third unsecured straight corporate bond in the amount of NT$5.0 billion, with a three-year issuance period and an annual interest rate of 1.70%.

12.<u>OTHERS</u>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1)<u>Categories of financial instruments</u>

---

| | | | |
|:---|:---|:---|:---|
|  | As of | As of | As of |
| Financial Assets | September 30,<br>2025 | December 31,<br>2024 | September 30,<br>2024 |
| &nbsp;&nbsp;&nbsp;&nbsp;Financial assets at fair value through profit or loss | $17684540 | $18456932 | $19109271 |
| &nbsp;&nbsp;&nbsp;&nbsp;Financial assets at fair value through other comprehensive income | 15812971 | 17209328 | 17416732 |
| &nbsp;&nbsp;&nbsp;&nbsp;Financial assets measured at amortized cost |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Cash and cash equivalents (cash on hand excluded) | 104210832 | 104993968 | 103401135 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Receivables | 33979831 | 34994933 | 35687048 |
| &nbsp;&nbsp;&nbsp;&nbsp;Refundable deposits | 1763650 | 1992400 | 1957916 |
| &nbsp;&nbsp;&nbsp;&nbsp;Other financial assets | 8932294 | 3739224 | 4331331 |
| Total | $182384118 | $181386785 | $181903433 |
| Financial Liabilities |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Financial liabilities at fair value through profit or loss | $314543 | $901000 | $1086488 |
| &nbsp;&nbsp;&nbsp;&nbsp;Financial liabilities measured at amortized cost |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Short-term loans | 16060185 | 8515000 | 17068900 |
| &nbsp;&nbsp;&nbsp;&nbsp;Payables | 39897664 | 42259798 | 45213147 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Guarantee deposits (current portion included) | 40300188 | 42874494 | 42130220 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Bonds payable (current portion included) | 40387966 | 30051568 | 33403417 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Long-term loans (current portion included) | 27455238 | 36476909 | 38517339 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Lease liabilities | 6093587 | 6419016 | 6510581 |
| Total | $170509371 | $167497785 | $183930092 |

---

------

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2)<u>Financial risk management objectives and policies</u>

The Company's risk management objectives are to manage the market risk, credit risk and liquidity risk related to its operating activities. The Company identifies, measures and manages the aforementioned risks based on policy and risk preference.

The Company has established appropriate policies, procedures and internal controls for financial risk management. Before entering into significant financial activities, approval process by the Board of Directors and Audit Committee must be carried out based on related protocols and internal control procedures. The Company complies with its financial risk management policies at all times.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(3)<u>Market risk</u>

Market risk is the risk that the fair value or future cash flows of a financial instrument will fluctuate because of changes in market prices. Market risks comprise currency risk, interest rate risk and other price risk (such as equity price risk).

<u>Foreign currency risk</u>

The Company's exposure to the risk of changes in foreign exchange rates relates primarily to the Company's operating activities (when revenue or expense is denominated in a different currency from the Company's functional currency) and the Company's net investments in foreign subsidiaries.

The Company applies natural hedges on the foreign currency risk arising from purchases or sales, and utilizes spot or forward exchange contracts to manage foreign currency risk and the net effect of the risks related to monetary financial assets and liabilities is minor. 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 exchange contracts for uncertain commitments. Furthermore, as net investments in foreign subsidiaries are for strategic purposes, they are not hedged by the Company.

The foreign currency sensitivity analysis of the possible change in foreign exchange rates on the Company's profit is performed on significant monetary items denominated in foreign currencies as of the end of the reporting period. When NTD strengthens/weakens against USD by 10%, the profit for the nine-month periods ended September 30, 2025 and 2024 decreases/increases by NT$248 million and NT$871 million, respectively. When RMB strengthens/weakens against USD by 10%, the profit for the nine-month periods ended September 30, 2025 and 2024 decreases/increases by NT$289 million and NT$299 million, respectively. When JPY strengthens/weakens against USD by 10%, the profit for the nine-month periods ended September 30, 2025 and 2024 decreases/increases by NT$146 million and NT$100 million, respectively.

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<u>Interest rate risk</u>

The Company is exposed to interest rate risk arising from borrowing at floating interest rates. All of the Company's bonds have fixed interest rates and are measured at amortized cost. As such, changes in interest rates would not affect the future cash flows. On the other hand, as the interest rates of the Company's short-term and long-term bank loans are floating, changes in interest rates would affect the future cash flows but not the fair value. Please refer to Note 6(11), (13) and (14) for the range of interest rates of the Company's bonds and bank loans.

At the reporting dates, a change of 10 basis points of interest rate in a reporting period could cause the profit for the nine-month periods ended September 30, 2025 and 2024 to decrease/increase by NT$33 million and NT$42 million, respectively.

<u>Equity price risk</u>

The Company's listed and unlisted equity securities, investments in convertible bonds and exchange right of the exchangeable bonds issued are susceptible to market price risk arising from uncertainties about future performance of equity markets. The Company's equity investments are classified as financial assets at fair value through profit or loss and financial assets at fair value through other comprehensive income, the investments in convertible bonds which contain the right of conversion to equity instruments are classified as financial assets at fair value through profit or loss, and the exchange right of the exchangeable bonds issued is classified as financial liabilities at fair value through profit or loss as it does not satisfy the definition of an equity component. Please refer to Note 6(2), (3) and (12) for the relevant information.

The sensitivity analysis for the equity instruments is based on the change in fair value as of the reporting date. A change of 5% in the price of the aforementioned financial assets at fair value through profit or loss of listed companies could increase/decrease the Company's profit for the nine-month periods ended September 30, 2025 and 2024 by NT$250 million and NT$257 million, respectively. A change of 5% in the price of the aforementioned financial assets at fair value through other comprehensive income of listed companies could increase/decrease the Company's other comprehensive income (loss) for the nine-month periods ended September 30, 2025 and 2024 by NT$591 million and NT$701 million, respectively.

Please refer to Note 12(7) for sensitivity analysis information of other equity instruments or derivatives that are linked to such equity instruments whose fair value measurement is categorized under Level 3.

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(4)<u>Credit risk management</u>

The Company only trades with approved and creditworthy third parties. Where the Company trades with third parties which have less credit, it will request collateral from them. It is the Company's policy that all customers who wish to trade on credit terms are subject to credit verification procedures. In addition, notes and accounts receivable balances are monitored on an ongoing basis to decrease the Company's exposure to credit risk.

The Company mitigates the credit risks from financial institutions by limiting its counter parties to only reputable domestic or international financial institutions with good credit standing and spreading its holdings among various financial institutions. The Company's exposure to credit risk arising from the default of counter-parties is limited to the carrying amount of these instruments.

As of September 30, 2025, December 31, 2024 and September 30, 2024, accounts receivable from the top ten customers represent 61%, 66% and 60% of the total accounts receivable of the Company, respectively. The credit concentration risk of other accounts receivable is insignificant.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(5)<u>Liquidity risk management</u>

The Company's objectives are to maintain a balance between continuity of funding and flexibility through the use of cash and cash equivalents, bank loans, bonds and lease.

The table below summarizes the maturity profile of the Company's financial liabilities based on the contractual undiscounted payments and contractual maturity:

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| | | | | | |
|:---|:---|:---|:---|:---|:---|
|  | As of September 30, 2025 | As of September 30, 2025 | As of September 30, 2025 | As of September 30, 2025 | As of September 30, 2025 |
|  | Less than<br>1 year | 2 to 3<br>years | 4 to 5<br>years | > 5 years | Total |
| &nbsp;&nbsp;&nbsp;&nbsp;Non-derivative financial liabilities |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Short-term loans | $16609847 | $- | $- | $- | $16609847 |
| &nbsp;&nbsp;&nbsp;&nbsp;Payables | 39725617 | - | - | - | 39725617 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Guarantee deposits | 648171 | 3859241 | 30214356 | 5578420 | 40300188 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Bonds payable (Note A) | 11782229 | 22746640 | 5406761 | 2107973 | 42043603 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Long-term loans (Note B) | 3542586 | 13751757 | 12115692 | 45418 | 29455453 |
| &nbsp;&nbsp;&nbsp;&nbsp;Lease liabilities | 825279 | 1467827 | 1412395 | 4068352 | 7773853 |
| &nbsp;&nbsp;&nbsp;Total | $73133729 | $41825465 | $49149204 | $11800163 | $175908561 |
| &nbsp;&nbsp;&nbsp;&nbsp;Derivative financial liabilities |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Forward exchange contracts |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Net settlement - outflow | $(2081) | $- | $- | $- | $(2081) |

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| | | | | | |
|:---|:---|:---|:---|:---|:---|
|  | As of December 31, 2024 | As of December 31, 2024 | As of December 31, 2024 | As of December 31, 2024 | As of December 31, 2024 |
|  | Less than<br>1 year | 2 to 3<br>years | 4 to 5<br>years | > 5 years | Total |
| &nbsp;&nbsp;&nbsp;&nbsp;Non-derivative financial liabilities |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Short-term loans | $8683215 | $- | $- | $- | $8683215 |
| &nbsp;&nbsp;&nbsp;&nbsp;Payables | 42136632 | - | - | - | 42136632 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Guarantee deposits | 921134 | 4571633 | 27522150 | 9859577 | 42874494 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Bonds payable (Note A) | 340976 | 16675030 | 12146745 | 2118683 | 31281434 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Long-term loans | 6354561 | 11490087 | 21478391 | 93106 | 39416145 |
| &nbsp;&nbsp;&nbsp;&nbsp;Lease liabilities | 830618 | 1509438 | 1437870 | 4442706 | 8220632 |
| &nbsp;&nbsp;&nbsp;Total | $59267136 | $34246188 | $62585156 | $16514072 | $172612552 |
| &nbsp;&nbsp;&nbsp;&nbsp;Derivative financial liabilities |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Forward exchange contracts |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Net settlement - outflow | $(1039) | $- | $- | $- | $(1039) |

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| | | | | | |
|:---|:---|:---|:---|:---|:---|
|  | As of September 30, 2024 | As of September 30, 2024 | As of September 30, 2024 | As of September 30, 2024 | As of September 30, 2024 |
|  | Less than<br>1 year | 2 to 3<br>years | 4 to 5<br>years | > 5 years | Total |
| &nbsp;&nbsp;&nbsp;Non-derivative financial liabilities |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Short-term loans | $17410265 | $- | $- | $- | $17410265 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Payables | 44988496 | - | - | - | 44988496 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Guarantee deposits | 1120349 | 4474333 | 26338320 | 10197218 | 42130220 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Bonds payable (Note A) | 3747964 | 16690742 | 12190395 | 2122253 | 34751354 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Long-term loans  | 5835118 | 13766408 | 22050167 | 86182 | 41737875 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Lease liabilities | 829223 | 1520933 | 1440243 | 4605518 | 8395917 |
| &nbsp;&nbsp;&nbsp;Total | $73931415 | $36452416 | $62019125 | $17011171 | $189414127 |

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Note A:UMC issued unsecured exchangeable bonds where the bondholders may exchange the bonds at any time on or after October 8, 2021 and prior to June 27, 2026 into NOVATEK common shares which UMC holds and accounts for as equity instruments investments measured at fair value through other comprehensive income. The balances of equity instruments investments measured at fair value through other comprehensive income were NT$5,280 million, NT$5,893 million and NT$6,081 million as of September 30, 2025, December 31, 2024 and September 30, 2024, respectively. Please refer to Note 6(13) for the terms of redemption.

Note B:For the long-term loans with contractual maturity within 2 to 3 years and 4 to 5 years as of September 30, 2025, the Company made repayments in the amounts of NT$3,017 million and NT$2,000 million, respectively, from October 1 to October 29, 2025.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(6)<u>Foreign currency risk management</u>

UMC entered into forward exchange contracts for hedging the exchange rate risk arising from the net monetary assets or liabilities denominated in foreign currency. The details of forward exchange contracts entered into by UMC are summarized as follows:

<u>As of September 30, 2025</u>

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| | | |
|:---|:---|:---|
| Type | Notional Amount | Contract Period |
| Forward exchange contracts | Sell USD 10 million | September 12, 2025 – October 21, 2025 |

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<u>As of December 31, 2024</u>

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| | | |
|:---|:---|:---|
| Type | Notional Amount | Contract Period |
| Forward exchange contracts | Sell USD 24 million | December 27, 2024 – January 21, 2025 |

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<u>As of September 30, 2024</u>

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| | | |
|:---|:---|:---|
| Type | Notional Amount | Contract Period |
| Forward exchange contracts | Sell USD 20 million | September 10, 2024 – October 17, 2024 |

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(7)<u>Fair value of financial instruments</u>

Fair value is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. The fair value measurement is based on the presumption that the transaction to sell the asset or transfer the liability takes place either in the principal market for the asset or liability, or in the absence of a principal market, in the most advantageous market for the asset or liability.

The principal or the most advantageous market must be accessible by the Company.

The fair value of an asset or a liability is measured using the assumptions that market participants would use when pricing the asset or liability, assuming that market participants act in their economic best interest.

A fair value measurement of a non-financial asset takes into account a market participant's ability to generate economic benefits by using the asset in its highest and best use or by selling it to another market participant that would use the asset in its highest and best use.

The Company uses valuation techniques that are appropriate in the circumstances and for which sufficient data are available to measure fair value, maximizing the use of relevant observable inputs and minimizing the use of unobservable inputs.

All assets and liabilities for which fair value is measured or disclosed in the financial statements are categorized within the fair value hierarchy, described as follows, based on the lowest level input that is significant to the fair value measurement as a whole:

Level 1 — Quoted (unadjusted) market prices in active markets for identical assets or liabilities,

Level 2 — Valuation techniques for which the lowest level input that is significant to the fair value measurement is directly or indirectly observable,

Level 3 — Valuation techniques for which the lowest level input that is significant to the fair value measurement is unobservable.

For assets and liabilities that are recognized in the financial statements on a recurring basis, the Company determines whether transfers have occurred between levels in the hierarchy by re-assessing categorization (based on the lowest level input that is significant to the fair value measurement as a whole) at the end of each reporting period.

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a.Assets and liabilities measured and recorded at fair value on a recurring basis:

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| | | | | |
|:---|:---|:---|:---|:---|
|  | As of September 30, 2025 | As of September 30, 2025 | As of September 30, 2025 | As of September 30, 2025 |
|  | Level 1 | Level 2 | Level 3 | Total |
| &nbsp;&nbsp;&nbsp;&nbsp;Financial assets: |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Financial assets at fair value through profit or loss, current | $555413 | $- | $54558 | $609971 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Financial assets at fair value through profit or loss, noncurrent | 5902988 | 19900 | 11151681 | 17074569 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Financial assets at fair value through other comprehensive income, current | 5280436 | - | - | 5280436 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Financial assets at fair value through other comprehensive income, noncurrent | 6542113 | - | 3990422 | 10532535 |
| &nbsp;&nbsp;&nbsp;&nbsp;Financial liabilities: |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Financial liabilities at fair value through profit or loss, current | - | 2081 | 312462 | 314543 |

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| | | | | |
|:---|:---|:---|:---|:---|
|  | As of December 31, 2024 | As of December 31, 2024 | As of December 31, 2024 | As of December 31, 2024 |
|  | Level 1 | Level 2 | Level 3 | Total |
| &nbsp;&nbsp;&nbsp;&nbsp;Financial assets: |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Financial assets at fair value through profit or loss, current | $606016 | $2 | $- | $606018 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Financial assets at fair value through profit or loss, noncurrent | 5703325 | 18800 | 12128789 | 17850914 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Financial assets at fair value through other comprehensive income, current | 5893377 | - | - | 5893377 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Financial assets at fair value through other comprehensive income, noncurrent | 7879553 | - | 3436398 | 11315951 |
| &nbsp;&nbsp;&nbsp;&nbsp;Financial liabilities: |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Financial liabilities at fair value through profit or loss, current | - | 1039 | 899961 | 901000 |

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| | | | | |
|:---|:---|:---|:---|:---|
|  | As of September 30, 2024 | As of September 30, 2024 | As of September 30, 2024 | As of September 30, 2024 |
|  | Level 1 | Level 2 | Level 3 | Total |
| &nbsp;&nbsp;&nbsp;&nbsp;Financial assets: |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Financial assets at fair value through profit or loss, current | $626620 | $8696 | $- | $635316 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Financial assets at fair value through profit or loss, noncurrent | 5728468 | 18600 | 12726887 | 18473955 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Financial assets at fair value through other comprehensive income, current | 6081214 | - | - | 6081214 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Financial assets at fair value through other comprehensive income, noncurrent | 7940833 | - | 3394685 | 11335518 |
| Financial liabilities: |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Financial liabilities at fair value through profit or loss, current | - | - | 1086488 | 1086488 |

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Fair values of financial assets at fair value through profit or loss and financial assets at fair value through other comprehensive income that are categorized into Level 1 are based on the quoted market prices in active markets. If there is no active market, the Company estimates the fair value by using the valuation techniques (income approach and market approach) in consideration of cash flow forecast, recent fund raising activities, valuation of similar companies, individual company's development, market conditions and other economic indicators.

If there are restrictions on the sale or transfer of a financial asset, which are a characteristic of the 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. To measure fair values, if the lowest level input that is significant to the fair value measurement is directly or indirectly observable, then the financial assets are classified as Level 2 of the fair value hierarchy, otherwise as Level 3.

During the nine-month periods ended September 30, 2025 and 2024, there were no transfers between Level 1 and Level 2 fair value measurements.

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Reconciliation for fair value measurement in Level 3 fair value hierarchy were as follows:

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| | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
|  | Financial assets at fair value through profit or loss | Financial assets at fair value through profit or loss | Financial assets at fair value through profit or loss | Financial assets at fair value through profit or loss | Financial assets at fair value through profit or loss | Financial assets at fair value through profit or loss | Financial assets at fair value through<br>other comprehensive income | Financial assets at fair value through<br>other comprehensive income | Financial assets at fair value through<br>other comprehensive income |
|  | Common stock | Preferred stock | Funds | Convertible bonds | Others | Total | Common stock | Preferred stock | Total |
| &nbsp;&nbsp;&nbsp;&nbsp;As of January 1, 2025 | $3008183 | $3403933 | $5596447 | $54766 | $65460 | $12128789 | $3231518 | $204880 | $3436398 |
| &nbsp;&nbsp;&nbsp;&nbsp;Recognized in profit (loss) | 169711 | (165881) | (627651) | 2930 | (4620) | (625511) | - | - | - |
| &nbsp;&nbsp;&nbsp;&nbsp;Recognized in other comprehensive income (loss) | - | - | - | - | - | - | 569524 | (4841) | 564683 |
| &nbsp;&nbsp;&nbsp;&nbsp;Acquisition | 193720 | 104260 | 272646 | 85229 | 9917 | 665772 | 150000 | - | 150000 |
| &nbsp;&nbsp;&nbsp;&nbsp;Disposal | (5690) | (1539) | (372135) | (66010) | - | (445374) | - | - | - |
| &nbsp;&nbsp;&nbsp;&nbsp;Return of capital | - | - | (2261) | - | - | (2261) | (160659) | - | (160659) |
| &nbsp;&nbsp;&nbsp;&nbsp;Transfer out of Level 3 | (159660) | - | - | - | - | (159660) | - | - | - |
| &nbsp;&nbsp;&nbsp;&nbsp;Exchange effect | (43970) | (119534) | (190117) | (1643) | (252) | (355516) | - | - | - |
| &nbsp;&nbsp;&nbsp;&nbsp;As of September 30, 2025 | $3162294 | $3221239 | $4676929 | $75272 | $70505 | $11206239 | $3790383 | $200039 | $3990422 |

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| | |
|:---|:---|
|  | Financial liabilities at fair value<br>through profit or loss |
|  | Derivatives |
| &nbsp;&nbsp;&nbsp;&nbsp;As of January 1, 2025 | $899961 |
| &nbsp;&nbsp;&nbsp;&nbsp;Recognized in loss(profit) | (587499) |
| &nbsp;&nbsp;&nbsp;&nbsp;As of September 30, 2025 | $312462 |

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| | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
|  | Financial assets at fair value through profit or loss | Financial assets at fair value through profit or loss | Financial assets at fair value through profit or loss | Financial assets at fair value through profit or loss | Financial assets at fair value through profit or loss | Financial assets at fair value through profit or loss | Financial assets at fair value through<br>other comprehensive income | Financial assets at fair value through<br>other comprehensive income | Financial assets at fair value through<br>other comprehensive income |
|  | Common stock | Preferred stock | Funds | Convertible bonds | Others | Total | Common stock | Preferred stock | Total |
| &nbsp;&nbsp;&nbsp;&nbsp;As of January 1, 2024 | $3036255 | $2786634 | $4274896 | $- | $153300 | $10251085 | $3062325 | $175063 | $3237388 |
| &nbsp;&nbsp;&nbsp;&nbsp;Recognized in profit (loss) | 75406 | (73808) | 1086264 | 690 | 1880 | 1090432 | - | - | - |
| &nbsp;&nbsp;&nbsp;&nbsp;Recognized in other comprehensive income (loss) | - | - | - | - | - | - | 74130 | 18473 | 92603 |
| &nbsp;&nbsp;&nbsp;&nbsp;Acquisition | 333324 | 381993 | 999770 | 51146 | - | 1766233 | 64694 | - | 64694 |
| &nbsp;&nbsp;&nbsp;&nbsp;Disposal | (78058) | (87939) | (81174) | - | (96078) | (343249) | - | - | - |
| &nbsp;&nbsp;&nbsp;&nbsp;Return of capital | (83) | - | (2433) | - | - | (2516) | - | - | - |
| &nbsp;&nbsp;&nbsp;&nbsp;Transfer out of Level 3 | (153869) | - | - | - | - | (153869) | - | - | - |
| &nbsp;&nbsp;&nbsp;&nbsp;Exchange effect | 17880 | 38238 | 58855 | (300) | 4098 | 118771 | - | - | - |
| &nbsp;&nbsp;&nbsp;&nbsp;As of September 30, 2024 | $3230855 | $3045118 | $6336178 | $51536 | $63200 | $12726887 | $3201149 | $193536 | $3394685 |

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| | |
|:---|:---|
|  | Financial liabilities at fair value<br>through profit or loss |
|  | Derivatives |
| &nbsp;&nbsp;&nbsp;&nbsp;As of January 1, 2024 | $1019362 |
| &nbsp;&nbsp;&nbsp;&nbsp;Recognized in loss (profit) | 67126 |
| &nbsp;&nbsp;&nbsp;&nbsp;As of September 30, 2024 | $1086488 |

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The total profit (loss) of NT$(630) million and NT$1,090 million for the nine-month periods ended September 30, 2025 and 2024, were included in profit or loss that is attributable to the change in unrealized gains or losses relating to those financial assets without quoted market prices held at the end of the reporting period.

The total profit (loss) of NT$587 million and NT$(67) million for the nine-month periods ended September 30, 2025 and 2024, were included in profit or loss that is attributable to the change in unrealized gains or losses relating to those financial liabilities without quoted market prices held at the end of the reporting period.

The Company's policy to recognize the transfer into and out of fair value hierarchy levels is based on the event or changes in circumstances that caused the transfer.

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Significant unobservable inputs of fair value measurement in Level 3 fair value hierarchy were as follows:

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| | | | | | |
|:---|:---|:---|:---|:---|:---|
| As of September 30, 2025 | As of September 30, 2025 | As of September 30, 2025 | As of September 30, 2025 | As of September 30, 2025 | As of September 30, 2025 |
| Category | Valuation technique | Significant unobservable inputs | Quantitative information | Interrelationship between inputs and fair value | Sensitivity analysis of interrelationship between inputs and fair value |
| &nbsp;&nbsp;&nbsp;&nbsp;Unlisted stock | &nbsp;&nbsp;&nbsp;&nbsp;Market approach | &nbsp;&nbsp;&nbsp;&nbsp;Discount for lack of marketability | &nbsp;&nbsp;&nbsp;&nbsp;0% - 60% | &nbsp;&nbsp;&nbsp;&nbsp;The greater degree of lack of marketability, the lower the estimated fair value is determined. | &nbsp;&nbsp;&nbsp;A change of 5% in the discount for lack of marketability of the aforementioned fair values of unlisted stocks could decrease/increase the Company's profit (loss) for the nine-month period ended September 30, 2025 by NT$339 million and NT$298 million, respectively, and decrease/increase the Company's other comprehensive income (loss) for the nine-month period ended September 30, 2025 by NT$283 million. |
| &nbsp;&nbsp;&nbsp;&nbsp;Fund | &nbsp;&nbsp;&nbsp;&nbsp;Net asset value approach | &nbsp;&nbsp;&nbsp;&nbsp;N/A | &nbsp;&nbsp;&nbsp;&nbsp;N/A | &nbsp;&nbsp;&nbsp;&nbsp;N/A | &nbsp;&nbsp;&nbsp;&nbsp;N/A |
| &nbsp;&nbsp;&nbsp;&nbsp;Convertible bonds | &nbsp;&nbsp;&nbsp;&nbsp;Binomial tree valuation model | &nbsp;&nbsp;&nbsp;&nbsp;Volatility | &nbsp;&nbsp;&nbsp;&nbsp;57.97% | &nbsp;&nbsp;&nbsp;&nbsp;The higher the volatility, the higher the estimated fair value is determined. | &nbsp;&nbsp;&nbsp;&nbsp;A change of 5% in the volatility could increase/decrease the Company's profit (loss) for the nine-month period ended September 30, 2025 by NT$0.01 million. |
| &nbsp;&nbsp;&nbsp;&nbsp;Embedded derivatives in exchangeable bonds | &nbsp;&nbsp;&nbsp;&nbsp;Binomial tree valuation model | &nbsp;&nbsp;&nbsp;&nbsp;Volatility | &nbsp;&nbsp;&nbsp;&nbsp;25.66% | &nbsp;&nbsp;&nbsp;&nbsp;The higher the volatility, the higher the estimated fair value is determined. | &nbsp;&nbsp;&nbsp;&nbsp;A change of 5% in the volatility could decrease/increase the Company's profit (loss) for the nine-month period ended September 30, 2025 by NT$89 million. |

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| | | | | | |
|:---|:---|:---|:---|:---|:---|
| As of September 30, 2024 | As of September 30, 2024 | As of September 30, 2024 | As of September 30, 2024 | As of September 30, 2024 | As of September 30, 2024 |
| Category | Valuation technique | Significant unobservable inputs | Quantitative information | Interrelationship between inputs and fair value | Sensitivity analysis of interrelationship between inputs and fair value |
| &nbsp;&nbsp;&nbsp;&nbsp;Unlisted stock | &nbsp;&nbsp;&nbsp;&nbsp;Market approach | &nbsp;&nbsp;&nbsp;&nbsp;Discount for lack of marketability | &nbsp;&nbsp;&nbsp;&nbsp;0% - 50% | &nbsp;&nbsp;&nbsp;&nbsp;The greater degree of lack of marketability, the lower the estimated fair value is determined. | &nbsp;&nbsp;&nbsp;A change of 5% in the discount for lack of marketability of the aforementioned fair values of unlisted stocks could decrease/increase the Company's profit (loss) for the nine-month period ended September 30, 2024 by NT$325 million and NT$284 million, respectively, and decrease/increase the Company's other comprehensive income (loss) for the nine-month period ended September 30, 2024 by NT$246 million. |
| &nbsp;&nbsp;&nbsp;&nbsp;Fund | &nbsp;&nbsp;&nbsp;&nbsp;Net asset value approach | &nbsp;&nbsp;&nbsp;&nbsp;N/A | &nbsp;&nbsp;&nbsp;&nbsp;N/A | &nbsp;&nbsp;&nbsp;&nbsp;N/A | &nbsp;&nbsp;&nbsp;&nbsp;N/A |
| &nbsp;&nbsp;&nbsp;&nbsp;Convertible bonds | &nbsp;&nbsp;&nbsp;&nbsp;Binomial tree valuation model | &nbsp;&nbsp;&nbsp;&nbsp;Volatility | &nbsp;&nbsp;&nbsp;&nbsp;54.28% | &nbsp;&nbsp;&nbsp;&nbsp;The higher the volatility, the higher the estimated fair value is determined. | &nbsp;&nbsp;&nbsp;&nbsp;A change of 5% in the volatility could increase/decrease the Company's profit (loss) for the nine-month period ended September 30, 2024 by NT$0.3 million and NT$0.4 million, respectively. |
| &nbsp;&nbsp;&nbsp;&nbsp;Embedded derivatives in exchangeable bonds | &nbsp;&nbsp;&nbsp;&nbsp;Binomial tree valuation model | &nbsp;&nbsp;&nbsp;&nbsp;Volatility | &nbsp;&nbsp;&nbsp;&nbsp;29.06% | &nbsp;&nbsp;&nbsp;&nbsp;The higher the volatility, the higher the estimated fair value is determined. | &nbsp;&nbsp;&nbsp;&nbsp;A change of 5% in the volatility could decrease/increase the Company's profit (loss) for the nine-month period ended September 30, 2024 by NT$86 million and NT$107 million, respectively. |

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b.Assets and liabilities not recorded at fair value but for which fair value is disclosed:

The fair value of bonds payable is estimated by the market price or using a valuation model. The model uses market-based observable inputs including share price, exchange price, volatility, risk-free interest rates and risk discount rates. The fair value of long-term loans is determined using discounted cash flow model, based on the Company's current incremental borrowing rates of similar loans.

The fair values of the Company's cash and cash equivalents, receivables, refundable deposits, other financial assets, short-term loans, payables and guarantee deposits approximate their carrying amount.

<u>As of September 30, 2025</u>

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| | | | | | |
|:---|:---|:---|:---|:---|:---|
|  |  | Fair value measurements during <br>reporting period using | Fair value measurements during <br>reporting period using | Fair value measurements during <br>reporting period using |  |
| Items | Fair value | Level 1 | Level 2 | Level 3 | Carrying amount |
| &nbsp;&nbsp;&nbsp;&nbsp;Bonds payables (current portion included) | $40400458 | $34713774 | $5686684 | $- | $40387966 |
| &nbsp;&nbsp;&nbsp;&nbsp;Long-term loans (current portion included) | 27455238 | - | 27455238 | - | 27455238 |

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<u>As of December 31, 2024</u>

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| | | | | | |
|:---|:---|:---|:---|:---|:---|
|  |  | Fair value measurements during <br>reporting period using | Fair value measurements during <br>reporting period using | Fair value measurements during <br>reporting period using |  |
| Items | Fair value | Level 1 | Level 2 | Level 3 | Carrying amount |
| &nbsp;&nbsp;&nbsp;&nbsp;Bonds payables (current portion included) | $30020005 | $24409952 | $5610053 | $- | $30051568 |
| &nbsp;&nbsp;&nbsp;&nbsp;Long-term loans (current portion included) | 36476909 | - | 36476909 | - | 36476909 |

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<u>As of September 30, 2024</u>

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| | | | | | |
|:---|:---|:---|:---|:---|:---|
|  |  | Fair value measurements during <br>reporting period using | Fair value measurements during <br>reporting period using | Fair value measurements during <br>reporting period using |  |
| Items | Fair value | Level 1 | Level 2 | Level 3 | Carrying amount |
| &nbsp;&nbsp;&nbsp;&nbsp;Bonds payables (current portion included) | $33394308 | $27807422 | $5586886 | $- | $33403417 |
| &nbsp;&nbsp;&nbsp;&nbsp;Long-term loans (current portion included) | 38517339 | - | 38517339 | - | 38517339 |

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(8)<u>Significant financial assets and liabilities denominated in foreign currencies</u>

The following information was summarized by the foreign currencies other than the functional currency of the Company. The exchange rates disclosed were used to translate the foreign currencies into the functional currency. The significant financial assets and liabilities denominated in foreign currencies were as follows:

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| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
|  | As of | As of | As of | As of | As of | As of |
|  | September 30, 2025 | September 30, 2025 | September 30, 2025 | December 31, 2024 | December 31, 2024 | December 31, 2024 |
|  | Foreign Currency (thousand) | Exchange Rate | NTD (thousand) | Foreign Currency (thousand) | Exchange Rate | NTD (thousand) |
| <u>Financial Assets</u> |  |  |  |  |  |  |
| <u>Monetary items</u> |  |  |  |  |  |  |
| USD:NTD | $915117 | 30.42 | $27837874 | $1135303 | 32.73 | $37158473 |
| JPY:NTD | 3334345 | 0.2039 | 679873 | 3839482 | 0.2080 | 798612 |
| SGD:USD | 186129 | 0.7738 | 4381288 | 169091 | 0.7348 | 4066659 |
| EUR:USD | 75071 | 1.1703 | 2672562 | 13306 | 1.0373 | 451740 |
| JPY:USD | 8609606 | 0.0067 | 1754758 | 3508746 | 0.0064 | 734984 |
| USD:RMB | 217372 | 7.1055 | 6561193 | 351316 | 7.1884 | 11245592 |
| USD:JPY | 106856 | 148.89 | 3244001 | 119794 | 158.17 | 3941156 |
| <u>Non-Monetary items</u> |  |  |  |  |  |  |
| USD:NTD |  |  |  |  |  |  |
| <u>Financial Liabilities</u> | 201796 | 30.42 | 6138641 | 198151 | 32.73 | 6485482 |
| <u>Monetary items</u> |  |  |  |  |  |  |
| USD:NTD | 830810 | 30.52 | 25356325 | 798182 | 32.83 | 26204313 |
| JPY:NTD | 3713919 | 0.2080 | 772495 | 4293687 | 0.2121 | 910691 |
| SGD:USD | 170781 | 0.7772 | 4050947 | 162496 | 0.7380 | 3937045 |
| EUR:USD | 76319 | 1.1796 | 2747577 | 22753 | 1.0463 | 781576 |
| JPY:USD | 8322009 | 0.0068 | 1727116 | 4362898 | 0.0065 | 931021 |
| USD:RMB | 123193 | 7.1055 | 3762282 | 159134 | 7.1884 | 5151076 |
| USD:JPY | 60386 | 148.89 | 1870087 | 49095 | 158.17 | 1647048 |

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| | | | |
|:---|:---|:---|:---|
|  | As of | As of | As of |
|  | September 30, 2024 | September 30, 2024 | September 30, 2024 |
|  | Foreign Currency (thousand) | Exchange Rate | NTD (thousand) |
| <u>Financial Assets</u> |  |  |  |
| <u>Monetary items</u> |  |  |  |
| USD:NTD | $1224527 | 31.60 | $38695068 |
| JPY:NTD | 5108550 | 0.2205 | 1126435 |
| SGD:USD | 124339 | 0.7797 | 3063532 |
| EUR:USD | 15344 | 1.1136 | 539940 |
| JPY:USD | 4693455 | 0.0070 | 1038192 |
| USD:RMB | 277618 | 7.0074 | 8754196 |
| USD:JPY | 85517 | 142.82 | 2693088 |

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| | | | |
|:---|:---|:---|:---|
|  | As of | As of | As of |
|  | September 30, 2024 | September 30, 2024 | September 30, 2024 |
|  | Foreign Currency (thousand) | Exchange Rate | NTD (thousand) |
| <u>Non-Monetary items</u> |  |  |  |
| USD:NTD | $220383 | 31.60 | $6964096 |
| <u>Financial Liabilities</u> |  |  |  |
| <u>Monetary items</u> |  |  |  |
| USD:NTD | 945813 | 31.70 | 29982285 |
| JPY:NTD | 5295661 | 0.2246 | 1189405 |
| SGD:USD | 229686 | 0.7830 | 5701063 |
| EUR:USD | 7738 | 1.1227 | 275378 |
| JPY:USD | 4433803 | 0.0071 | 997916 |
| USD:RMB | 181573 | 7.0074 | 5789258 |
| USD:JPY | 52683  | 142.82 | 1689939 |

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The foreign currency transactions mentioned above are expressed in terms of the amount before elimination.

Please refer to the consolidated statements of comprehensive income for the total of realized and unrealized foreign exchange gain and loss. Since there were varieties of foreign currency transactions and functional currencies within the subsidiaries of the Company, the Company was unable to disclose foreign exchange gain (loss) towards each foreign currency with significant impact.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(9)Significant intercompany transactions among consolidated entities are disclosed in Attachment 1.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(10)<u>Capital management</u>

The primary objective of the Company's capital management is to ensure that it maintains a strong credit rating and healthy capital ratios to support its business and maximize the shareholders' value. The Company also ensures its ability to operate continuously to provide returns to shareholders and the interests of other related parties, while maintaining the optimal capital structure to reduce costs of capital.

To maintain or adjust the capital structure, the Company may adjust the dividend payment to shareholders, return capital to shareholders, issue new shares or dispose assets to redeem liabilities.

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Similar to its peers, the Company monitors its capital based on debt to capital ratio. The ratio is calculated as the Company's net debt divided by its total capital. The net debt is derived by taking the total liabilities on the consolidated balance sheets minus cash and cash equivalents. The total capital consists of total equity (including capital, additional paid-in capital, retained earnings, other components of equity and non-controlling interests) plus net debt.

The Company's strategy, which is unchanged for the reporting periods, is to maintain a reasonable ratio in order to raise capital with reasonable cost. The debt to capital ratios as of September 30, 2025, December 31, 2024 and September 30, 2024 were as follows:

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| | | | |
|:---|:---|:---|:---|
|  | As of | As of | As of |
|  | September 30,<br>2025 | December 31,<br>2024 | September 30,<br>2024 |
| Total liabilities | $194195228 | $192015673 | $205801571 |
| Less: Cash and cash equivalents | (104217382) | (105000226) | (103407426) |
| Net debt | 89977846 | 87015447 | 102394145 |
| Total equity | 361200194 | 378185004 | 368490866 |
| Total capital | $451178040 | $465200451 | $470885011 |
| Debt to capital ratios | 19.94% | 18.70% | 21.75% |

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13.<u>ADDITIONAL DISCLOSURES</u>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1)The following are additional disclosures for the Company and its affiliates as required by the R.O.C. Securities and Futures Bureau:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a.Financing provided to others for the nine-month period ended September 30, 2025: Please refer to Attachment 2.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b.Endorsement/Guarantee provided to others for the nine-month period ended September 30, 2025: Please refer to Attachment 3.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;c.Securities held as of September 30, 2025 (excluding subsidiaries, associates and joint venture): Please refer to Attachment 4.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;d.Related party transactions for purchases and sales amounts exceeding the lower of NT$100 million or 20 percent of the capital stock for the nine-month period ended September 30, 2025: Please refer to Attachment 5.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;e.Receivables from related parties with amounts exceeding the lower of NT$100 million or 20 percent of capital stock as of September 30, 2025: Please refer to Attachment 6.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;f.Names, locations and related information of investees as of September 30, 2025 (excluding investment in Mainland China): Please refer to Attachment 7.

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2)Investment in Mainland China

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a.Investee company name, main businesses and products, total amount of capital, method of investment, accumulated inflow and outflow of investments from Taiwan, net income (loss) of investee company, percentage of ownership, investment income (loss), carrying amount of investments, cumulated inward remittance of earnings and limits on investment in Mainland China: Please refer to Attachment 8.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b.Directly or indirectly significant transactions through third regions with the investees in Mainland China, including price, payment terms, unrealized gain or loss, and other events with significant effects on the operating results and financial condition: Please refer to Attachment 1, 3 and 5.

14.<u>OPERATING SEGMENT INFORMATION</u>

The Company determined its operating segments based on business activities with discrete financial information regularly reported through the Company's internal reporting protocols to the Company's chief operating decision maker. The Company only has wafer fabrication operating segment as the single reporting segment. The primary operating activity of the wafer fabrication segment is the manufacture of chips to the design specifications of our customers by using our own proprietary processes and techniques. There was no material difference between the accounting policies of the operating segment and those described in Note 4. Please refer to the Company's consolidated financial statements for the related segment revenue and operating results.

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| | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|
| ATTACHMENT 1 (Significant intercompany transactions between consolidated entities) | ATTACHMENT 1 (Significant intercompany transactions between consolidated entities) | ATTACHMENT 1 (Significant intercompany transactions between consolidated entities) | ATTACHMENT 1 (Significant intercompany transactions between consolidated entities) | ATTACHMENT 1 (Significant intercompany transactions between consolidated entities) | ATTACHMENT 1 (Significant intercompany transactions between consolidated entities) | ATTACHMENT 1 (Significant intercompany transactions between consolidated entities) | ATTACHMENT 1 (Significant intercompany transactions between consolidated entities) |
| (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) |
| <u>For the nine-month period ended September 30, 2025</u> | <u>For the nine-month period ended September 30, 2025</u> | <u>For the nine-month period ended September 30, 2025</u> | <u>For the nine-month period ended September 30, 2025</u> | <u>For the nine-month period ended September 30, 2025</u> | <u>For the nine-month period ended September 30, 2025</u> | <u>For the nine-month period ended September 30, 2025</u> | <u>For the nine-month period ended September 30, 2025</u> |
|  |  |  |  | Transactions | Transactions | Transactions | Transactions |
| No.<br>(Note 1) | Related party | Counterparty | Relationship with <br>the Company<br>(Note 2) | Account | Amount | Collection periods<br>(Note 3) | Percentage of consolidated operating <br>revenues or consolidated total assets <br>(Note 4) |
| 0 | UNITED MICROELECTRONICS CORPORATION | UMC GROUP (USA) | 1 | Sales | $39334745 | Net 60 days | 22% |
| 0 | UNITED MICROELECTRONICS CORPORATION | UMC GROUP (USA) | 1 | Accounts receivable | 7465060 | - | 1% |
| 0 | UNITED MICROELECTRONICS CORPORATION | UNITED SEMICONDUCTOR (XIAMEN) CO., LTD. | 1 | Sales | 872,279<br>(Note 5) | Net 30 days | 0% |
| 0 | UNITED MICROELECTRONICS CORPORATION | UNITED SEMICONDUCTOR (XIAMEN) CO., LTD. | 1 | Accounts receivable | 5309 | - | 0% |
| 1 | UNITED SEMICONDUCTOR JAPAN CO., LTD. | UMC GROUP (USA) | 3 | Sales | 3837109 | Net 60 days | 2% |
| 1 | UNITED SEMICONDUCTOR JAPAN CO., LTD. | UMC GROUP (USA) | 3 | Accounts receivable | 963185 | - | 0% |
| 2 | UNITED SEMICONDUCTOR (XIAMEN) CO., LTD. | UMC GROUP (USA) | 3 | Sales | 304867 | Net 60 days | 0% |
| 2 | UNITED SEMICONDUCTOR (XIAMEN) CO., LTD. | UMC GROUP (USA) | 3 | Accounts receivable | 30249 | - | 0% |
| 3 | WAVETEK MICROELECTRONICS CORPORATION | UMC GROUP (USA) | 3 | Sales | 274622 | Net 60 days | 0% |
| 3 | WAVETEK MICROELECTRONICS CORPORATION | UMC GROUP (USA) | 3 | Accounts receivable | 66943 | - | 0% |
| Note 1: UMC and its subsidiaries are coded as follows:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1. UMC is coded "0".<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2. The subsidiaries are coded consecutively beginning from "1" in the order presented in the table above. | Note 1: UMC and its subsidiaries are coded as follows:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1. UMC is coded "0".<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2. The subsidiaries are coded consecutively beginning from "1" in the order presented in the table above. | Note 1: UMC and its subsidiaries are coded as follows:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1. UMC is coded "0".<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2. The subsidiaries are coded consecutively beginning from "1" in the order presented in the table above. | Note 1: UMC and its subsidiaries are coded as follows:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1. UMC is coded "0".<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2. The subsidiaries are coded consecutively beginning from "1" in the order presented in the table above. | Note 1: UMC and its subsidiaries are coded as follows:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1. UMC is coded "0".<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2. The subsidiaries are coded consecutively beginning from "1" in the order presented in the table above. | Note 1: UMC and its subsidiaries are coded as follows:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1. UMC is coded "0".<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2. The subsidiaries are coded consecutively beginning from "1" in the order presented in the table above. | Note 1: UMC and its subsidiaries are coded as follows:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1. UMC is coded "0".<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2. The subsidiaries are coded consecutively beginning from "1" in the order presented in the table above. | Note 1: UMC and its subsidiaries are coded as follows:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1. UMC is coded "0".<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2. The subsidiaries are coded consecutively beginning from "1" in the order presented in the table above. |
| Note 2: Transactions are categorized as follows:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1. The holding company to subsidiary.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2. Subsidiary to holding company.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 3. Subsidiary to subsidiary. | Note 2: Transactions are categorized as follows:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1. The holding company to subsidiary.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2. Subsidiary to holding company.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 3. Subsidiary to subsidiary. | Note 2: Transactions are categorized as follows:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1. The holding company to subsidiary.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2. Subsidiary to holding company.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 3. Subsidiary to subsidiary. | Note 2: Transactions are categorized as follows:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1. The holding company to subsidiary.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2. Subsidiary to holding company.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 3. Subsidiary to subsidiary. | Note 2: Transactions are categorized as follows:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1. The holding company to subsidiary.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2. Subsidiary to holding company.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 3. Subsidiary to subsidiary. | Note 2: Transactions are categorized as follows:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1. The holding company to subsidiary.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2. Subsidiary to holding company.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 3. Subsidiary to subsidiary. | Note 2: Transactions are categorized as follows:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1. The holding company to subsidiary.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2. Subsidiary to holding company.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 3. Subsidiary to subsidiary. | Note 2: Transactions are categorized as follows:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1. The holding company to subsidiary.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2. Subsidiary to holding company.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 3. Subsidiary to subsidiary. |
| Note 3: The sales price to the above related parties was determined through mutual agreement in reference to market conditions. | Note 3: The sales price to the above related parties was determined through mutual agreement in reference to market conditions. | Note 3: The sales price to the above related parties was determined through mutual agreement in reference to market conditions. | Note 3: The sales price to the above related parties was determined through mutual agreement in reference to market conditions. | Note 3: The sales price to the above related parties was determined through mutual agreement in reference to market conditions. | Note 3: The sales price to the above related parties was determined through mutual agreement in reference to market conditions. | Note 3: The sales price to the above related parties was determined through mutual agreement in reference to market conditions. | Note 3: The sales price to the above related parties was determined through mutual agreement in reference to market conditions. |
| Note 4: The percentage with respect to the consolidated asset/liability for transactions of balance sheet items are based on each item's balance at period-end.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; For profit or loss items, cumulative balances are used as basis. | Note 4: The percentage with respect to the consolidated asset/liability for transactions of balance sheet items are based on each item's balance at period-end.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; For profit or loss items, cumulative balances are used as basis. | Note 4: The percentage with respect to the consolidated asset/liability for transactions of balance sheet items are based on each item's balance at period-end.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; For profit or loss items, cumulative balances are used as basis. | Note 4: The percentage with respect to the consolidated asset/liability for transactions of balance sheet items are based on each item's balance at period-end.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; For profit or loss items, cumulative balances are used as basis. | Note 4: The percentage with respect to the consolidated asset/liability for transactions of balance sheet items are based on each item's balance at period-end.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; For profit or loss items, cumulative balances are used as basis. | Note 4: The percentage with respect to the consolidated asset/liability for transactions of balance sheet items are based on each item's balance at period-end.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; For profit or loss items, cumulative balances are used as basis. | Note 4: The percentage with respect to the consolidated asset/liability for transactions of balance sheet items are based on each item's balance at period-end.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; For profit or loss items, cumulative balances are used as basis. | Note 4: The percentage with respect to the consolidated asset/liability for transactions of balance sheet items are based on each item's balance at period-end.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; For profit or loss items, cumulative balances are used as basis. |
| Note 5: UMC authorized technology licenses to its subsidiary, UNITED SEMICONDUCTOR (XIAMEN) CO., LTD., in the amount of USD 0.35 billion which was recognized as deferred revenue. <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Since it was a downstream transaction, the deferred revenue would be realized over time. | Note 5: UMC authorized technology licenses to its subsidiary, UNITED SEMICONDUCTOR (XIAMEN) CO., LTD., in the amount of USD 0.35 billion which was recognized as deferred revenue. <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Since it was a downstream transaction, the deferred revenue would be realized over time. | Note 5: UMC authorized technology licenses to its subsidiary, UNITED SEMICONDUCTOR (XIAMEN) CO., LTD., in the amount of USD 0.35 billion which was recognized as deferred revenue. <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Since it was a downstream transaction, the deferred revenue would be realized over time. | Note 5: UMC authorized technology licenses to its subsidiary, UNITED SEMICONDUCTOR (XIAMEN) CO., LTD., in the amount of USD 0.35 billion which was recognized as deferred revenue. <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Since it was a downstream transaction, the deferred revenue would be realized over time. | Note 5: UMC authorized technology licenses to its subsidiary, UNITED SEMICONDUCTOR (XIAMEN) CO., LTD., in the amount of USD 0.35 billion which was recognized as deferred revenue. <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Since it was a downstream transaction, the deferred revenue would be realized over time. | Note 5: UMC authorized technology licenses to its subsidiary, UNITED SEMICONDUCTOR (XIAMEN) CO., LTD., in the amount of USD 0.35 billion which was recognized as deferred revenue. <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Since it was a downstream transaction, the deferred revenue would be realized over time. | Note 5: UMC authorized technology licenses to its subsidiary, UNITED SEMICONDUCTOR (XIAMEN) CO., LTD., in the amount of USD 0.35 billion which was recognized as deferred revenue. <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Since it was a downstream transaction, the deferred revenue would be realized over time. | Note 5: UMC authorized technology licenses to its subsidiary, UNITED SEMICONDUCTOR (XIAMEN) CO., LTD., in the amount of USD 0.35 billion which was recognized as deferred revenue. <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Since it was a downstream transaction, the deferred revenue would be realized over time. |

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| ATTACHMENT 2 (Financing provided to others for the nine-month period ended September 30, 2025) | ATTACHMENT 2 (Financing provided to others for the nine-month period ended September 30, 2025) | ATTACHMENT 2 (Financing provided to others for the nine-month period ended September 30, 2025) | ATTACHMENT 2 (Financing provided to others for the nine-month period ended September 30, 2025) | ATTACHMENT 2 (Financing provided to others for the nine-month period ended September 30, 2025) | ATTACHMENT 2 (Financing provided to others for the nine-month period ended September 30, 2025) | ATTACHMENT 2 (Financing provided to others for the nine-month period ended September 30, 2025) | ATTACHMENT 2 (Financing provided to others for the nine-month period ended September 30, 2025) | ATTACHMENT 2 (Financing provided to others for the nine-month period ended September 30, 2025) | ATTACHMENT 2 (Financing provided to others for the nine-month period ended September 30, 2025) | ATTACHMENT 2 (Financing provided to others for the nine-month period ended September 30, 2025) | ATTACHMENT 2 (Financing provided to others for the nine-month period ended September 30, 2025) | ATTACHMENT 2 (Financing provided to others for the nine-month period ended September 30, 2025) | ATTACHMENT 2 (Financing provided to others for the nine-month period ended September 30, 2025) | ATTACHMENT 2 (Financing provided to others for the nine-month period ended September 30, 2025) | ATTACHMENT 2 (Financing provided to others for the nine-month period ended September 30, 2025) |
| (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) |
|  |  |  |  |  |  |  |  |  |  |  |  | Collateral | Collateral |  |  |
| No. | Lender | Counterparty | Financial statement account | Related party | Maximum balance for the period<br> Ending balance | Actual amount provided | Interest rate | Nature of financing | Amount of sales to (purchases from) counterparty | Reason for financing | Loss allowance | Item | Value | Limit of financing amount for individual counterparty | Limit of total financing amount |

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| | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| ATTACHMENT 3 (Endorsement/Guarantee provided to others for the nine-month period ended September 30, 2025) | ATTACHMENT 3 (Endorsement/Guarantee provided to others for the nine-month period ended September 30, 2025) | ATTACHMENT 3 (Endorsement/Guarantee provided to others for the nine-month period ended September 30, 2025) | ATTACHMENT 3 (Endorsement/Guarantee provided to others for the nine-month period ended September 30, 2025) | ATTACHMENT 3 (Endorsement/Guarantee provided to others for the nine-month period ended September 30, 2025) | ATTACHMENT 3 (Endorsement/Guarantee provided to others for the nine-month period ended September 30, 2025) | ATTACHMENT 3 (Endorsement/Guarantee provided to others for the nine-month period ended September 30, 2025) | ATTACHMENT 3 (Endorsement/Guarantee provided to others for the nine-month period ended September 30, 2025) | ATTACHMENT 3 (Endorsement/Guarantee provided to others for the nine-month period ended September 30, 2025) | ATTACHMENT 3 (Endorsement/Guarantee provided to others for the nine-month period ended September 30, 2025) | ATTACHMENT 3 (Endorsement/Guarantee provided to others for the nine-month period ended September 30, 2025) |
| (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) |
| **<u>UNITED MICROELECTRONICS CORPORATION</u>** | **<u>UNITED MICROELECTRONICS CORPORATION</u>** | **<u>UNITED MICROELECTRONICS CORPORATION</u>** | **<u>UNITED MICROELECTRONICS CORPORATION</u>** | **<u>UNITED MICROELECTRONICS CORPORATION</u>** | **<u>UNITED MICROELECTRONICS CORPORATION</u>** | **<u>UNITED MICROELECTRONICS CORPORATION</u>** | **<u>UNITED MICROELECTRONICS CORPORATION</u>** | **<u>UNITED MICROELECTRONICS CORPORATION</u>** | **<u>UNITED MICROELECTRONICS CORPORATION</u>** | **<u>UNITED MICROELECTRONICS CORPORATION</u>** |
|  |  | Receiving party | Receiving party |  |  |  |  |  |  |  |
| No.<br>(Note 1) | Endorsor/Guarantor | Company name | Relationship<br>(Note 2) | Limit of guarantee/endorsement amount for receiving party<br>(Note 3) | Maximum balance for the period | Ending balance | Actual amount <br>provided | Amount of collateral guarantee/endorsement | Percentage of accumulated guarantee amount to net assets value from the latest financial statement | Limit of total guarantee/endorsement amount <br>(Note 4) |
| 0 | UNITED MICROELECTRONICS <br>CORPORATION | UNITED SEMICONDUCTOR (XIAMEN) CO., LTD. | 2 | $162477099 | $8326080 | $3,632,040<br>(Note 5) | $3,537,259<br>(Note 5) | $- | 1.01% | $162477099 |
| **<u>HEJIAN TECHNOLOGY (SUZHOU) CO., LTD.</u>** | **<u>HEJIAN TECHNOLOGY (SUZHOU) CO., LTD.</u>** | **<u>HEJIAN TECHNOLOGY (SUZHOU) CO., LTD.</u>** | **<u>HEJIAN TECHNOLOGY (SUZHOU) CO., LTD.</u>** | **<u>HEJIAN TECHNOLOGY (SUZHOU) CO., LTD.</u>** | **<u>HEJIAN TECHNOLOGY (SUZHOU) CO., LTD.</u>** | **<u>HEJIAN TECHNOLOGY (SUZHOU) CO., LTD.</u>** | **<u>HEJIAN TECHNOLOGY (SUZHOU) CO., LTD.</u>** | **<u>HEJIAN TECHNOLOGY (SUZHOU) CO., LTD.</u>** | **<u>HEJIAN TECHNOLOGY (SUZHOU) CO., LTD.</u>** | **<u>HEJIAN TECHNOLOGY (SUZHOU) CO., LTD.</u>** |
|  |  | Receiving party | Receiving party |  |  |  |  |  |  |  |
| No.<br>(Note 1) | Endorsor/Guarantor | Company name | Relationship<br>(Note 2) | Limit of guarantee/endorsement amount for receiving party<br>(Note 6) | Maximum balance for the period | Ending balance | Actual amount <br>provided | Amount of collateral guarantee/endorsement | Percentage of accumulated guarantee amount to net assets value from the latest financial statement | Limit of total guarantee/endorsement amount <br>(Note 6) |
| 1 | HEJIAN TECHNOLOGY (SUZHOU) CO., LTD. | UNITED SEMICONDUCTOR (XIAMEN) CO., LTD. | 6 | $18687864 | $1410545 | $614886 | $599538 | $- | 1.48% | $18687864 |
| Note 1: The parent company and its subsidiaries are coded as follows:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1. The parent company is coded "0".<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2. The subsidiaries are coded consecutively beginning from "1" in the order presented in the table above. | Note 1: The parent company and its subsidiaries are coded as follows:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1. The parent company is coded "0".<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2. The subsidiaries are coded consecutively beginning from "1" in the order presented in the table above. | Note 1: The parent company and its subsidiaries are coded as follows:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1. The parent company is coded "0".<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2. The subsidiaries are coded consecutively beginning from "1" in the order presented in the table above. | Note 1: The parent company and its subsidiaries are coded as follows:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1. The parent company is coded "0".<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2. The subsidiaries are coded consecutively beginning from "1" in the order presented in the table above. | Note 1: The parent company and its subsidiaries are coded as follows:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1. The parent company is coded "0".<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2. The subsidiaries are coded consecutively beginning from "1" in the order presented in the table above. | Note 1: The parent company and its subsidiaries are coded as follows:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1. The parent company is coded "0".<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2. The subsidiaries are coded consecutively beginning from "1" in the order presented in the table above. | Note 1: The parent company and its subsidiaries are coded as follows:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1. The parent company is coded "0".<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2. The subsidiaries are coded consecutively beginning from "1" in the order presented in the table above. | Note 1: The parent company and its subsidiaries are coded as follows:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1. The parent company is coded "0".<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2. The subsidiaries are coded consecutively beginning from "1" in the order presented in the table above. | Note 1: The parent company and its subsidiaries are coded as follows:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1. The parent company is coded "0".<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2. The subsidiaries are coded consecutively beginning from "1" in the order presented in the table above. | Note 1: The parent company and its subsidiaries are coded as follows:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1. The parent company is coded "0".<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2. The subsidiaries are coded consecutively beginning from "1" in the order presented in the table above. | Note 1: The parent company and its subsidiaries are coded as follows:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1. The parent company is coded "0".<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2. The subsidiaries are coded consecutively beginning from "1" in the order presented in the table above. |
| Note 2: According to the "Guidelines Governing the Preparation of Financial Reports by Securities Issuers" issued by the R.O.C. Securities and Futures Bureau, receiving parties should be disclosed as one of the following:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1. A company with which it does business.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2. A company in which the public company directly and indirectly holds more than 50% of the voting shares.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 3. A company that directly and indirectly holds more than 50% of the voting shares in the public company.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 4. A company in which the public company holds, directly or indirectly, 90% or more of the voting shares.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 5. A company that fulfills its contractual obligations by providing mutual endorsements/guarantees for another company in the same industry or for joint builders for purposes of undertaking a construction project.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 6. A company that all capital contributing shareholders make endorsements/guarantees for their jointly invested company in proportion to their shareholding percentages.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 7. Companies in the same industry provide among themselves joint and several security for a performance guarantee of a sales contract for pre-construction homes pursuant to the Consumer Protection Act for each other. | Note 2: According to the "Guidelines Governing the Preparation of Financial Reports by Securities Issuers" issued by the R.O.C. Securities and Futures Bureau, receiving parties should be disclosed as one of the following:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1. A company with which it does business.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2. A company in which the public company directly and indirectly holds more than 50% of the voting shares.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 3. A company that directly and indirectly holds more than 50% of the voting shares in the public company.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 4. A company in which the public company holds, directly or indirectly, 90% or more of the voting shares.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 5. A company that fulfills its contractual obligations by providing mutual endorsements/guarantees for another company in the same industry or for joint builders for purposes of undertaking a construction project.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 6. A company that all capital contributing shareholders make endorsements/guarantees for their jointly invested company in proportion to their shareholding percentages.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 7. Companies in the same industry provide among themselves joint and several security for a performance guarantee of a sales contract for pre-construction homes pursuant to the Consumer Protection Act for each other. | Note 2: According to the "Guidelines Governing the Preparation of Financial Reports by Securities Issuers" issued by the R.O.C. Securities and Futures Bureau, receiving parties should be disclosed as one of the following:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1. A company with which it does business.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2. A company in which the public company directly and indirectly holds more than 50% of the voting shares.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 3. A company that directly and indirectly holds more than 50% of the voting shares in the public company.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 4. A company in which the public company holds, directly or indirectly, 90% or more of the voting shares.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 5. A company that fulfills its contractual obligations by providing mutual endorsements/guarantees for another company in the same industry or for joint builders for purposes of undertaking a construction project.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 6. A company that all capital contributing shareholders make endorsements/guarantees for their jointly invested company in proportion to their shareholding percentages.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 7. Companies in the same industry provide among themselves joint and several security for a performance guarantee of a sales contract for pre-construction homes pursuant to the Consumer Protection Act for each other. | Note 2: According to the "Guidelines Governing the Preparation of Financial Reports by Securities Issuers" issued by the R.O.C. Securities and Futures Bureau, receiving parties should be disclosed as one of the following:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1. A company with which it does business.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2. A company in which the public company directly and indirectly holds more than 50% of the voting shares.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 3. A company that directly and indirectly holds more than 50% of the voting shares in the public company.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 4. A company in which the public company holds, directly or indirectly, 90% or more of the voting shares.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 5. A company that fulfills its contractual obligations by providing mutual endorsements/guarantees for another company in the same industry or for joint builders for purposes of undertaking a construction project.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 6. A company that all capital contributing shareholders make endorsements/guarantees for their jointly invested company in proportion to their shareholding percentages.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 7. Companies in the same industry provide among themselves joint and several security for a performance guarantee of a sales contract for pre-construction homes pursuant to the Consumer Protection Act for each other. | Note 2: According to the "Guidelines Governing the Preparation of Financial Reports by Securities Issuers" issued by the R.O.C. Securities and Futures Bureau, receiving parties should be disclosed as one of the following:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1. A company with which it does business.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2. A company in which the public company directly and indirectly holds more than 50% of the voting shares.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 3. A company that directly and indirectly holds more than 50% of the voting shares in the public company.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 4. A company in which the public company holds, directly or indirectly, 90% or more of the voting shares.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 5. A company that fulfills its contractual obligations by providing mutual endorsements/guarantees for another company in the same industry or for joint builders for purposes of undertaking a construction project.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 6. A company that all capital contributing shareholders make endorsements/guarantees for their jointly invested company in proportion to their shareholding percentages.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 7. Companies in the same industry provide among themselves joint and several security for a performance guarantee of a sales contract for pre-construction homes pursuant to the Consumer Protection Act for each other. | Note 2: According to the "Guidelines Governing the Preparation of Financial Reports by Securities Issuers" issued by the R.O.C. Securities and Futures Bureau, receiving parties should be disclosed as one of the following:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1. A company with which it does business.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2. A company in which the public company directly and indirectly holds more than 50% of the voting shares.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 3. A company that directly and indirectly holds more than 50% of the voting shares in the public company.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 4. A company in which the public company holds, directly or indirectly, 90% or more of the voting shares.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 5. A company that fulfills its contractual obligations by providing mutual endorsements/guarantees for another company in the same industry or for joint builders for purposes of undertaking a construction project.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 6. A company that all capital contributing shareholders make endorsements/guarantees for their jointly invested company in proportion to their shareholding percentages.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 7. Companies in the same industry provide among themselves joint and several security for a performance guarantee of a sales contract for pre-construction homes pursuant to the Consumer Protection Act for each other. | Note 2: According to the "Guidelines Governing the Preparation of Financial Reports by Securities Issuers" issued by the R.O.C. Securities and Futures Bureau, receiving parties should be disclosed as one of the following:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1. A company with which it does business.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2. A company in which the public company directly and indirectly holds more than 50% of the voting shares.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 3. A company that directly and indirectly holds more than 50% of the voting shares in the public company.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 4. A company in which the public company holds, directly or indirectly, 90% or more of the voting shares.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 5. A company that fulfills its contractual obligations by providing mutual endorsements/guarantees for another company in the same industry or for joint builders for purposes of undertaking a construction project.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 6. A company that all capital contributing shareholders make endorsements/guarantees for their jointly invested company in proportion to their shareholding percentages.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 7. Companies in the same industry provide among themselves joint and several security for a performance guarantee of a sales contract for pre-construction homes pursuant to the Consumer Protection Act for each other. | Note 2: According to the "Guidelines Governing the Preparation of Financial Reports by Securities Issuers" issued by the R.O.C. Securities and Futures Bureau, receiving parties should be disclosed as one of the following:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1. A company with which it does business.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2. A company in which the public company directly and indirectly holds more than 50% of the voting shares.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 3. A company that directly and indirectly holds more than 50% of the voting shares in the public company.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 4. A company in which the public company holds, directly or indirectly, 90% or more of the voting shares.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 5. A company that fulfills its contractual obligations by providing mutual endorsements/guarantees for another company in the same industry or for joint builders for purposes of undertaking a construction project.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 6. A company that all capital contributing shareholders make endorsements/guarantees for their jointly invested company in proportion to their shareholding percentages.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 7. Companies in the same industry provide among themselves joint and several security for a performance guarantee of a sales contract for pre-construction homes pursuant to the Consumer Protection Act for each other. | Note 2: According to the "Guidelines Governing the Preparation of Financial Reports by Securities Issuers" issued by the R.O.C. Securities and Futures Bureau, receiving parties should be disclosed as one of the following:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1. A company with which it does business.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2. A company in which the public company directly and indirectly holds more than 50% of the voting shares.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 3. A company that directly and indirectly holds more than 50% of the voting shares in the public company.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 4. A company in which the public company holds, directly or indirectly, 90% or more of the voting shares.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 5. A company that fulfills its contractual obligations by providing mutual endorsements/guarantees for another company in the same industry or for joint builders for purposes of undertaking a construction project.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 6. A company that all capital contributing shareholders make endorsements/guarantees for their jointly invested company in proportion to their shareholding percentages.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 7. Companies in the same industry provide among themselves joint and several security for a performance guarantee of a sales contract for pre-construction homes pursuant to the Consumer Protection Act for each other. | Note 2: According to the "Guidelines Governing the Preparation of Financial Reports by Securities Issuers" issued by the R.O.C. Securities and Futures Bureau, receiving parties should be disclosed as one of the following:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1. A company with which it does business.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2. A company in which the public company directly and indirectly holds more than 50% of the voting shares.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 3. A company that directly and indirectly holds more than 50% of the voting shares in the public company.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 4. A company in which the public company holds, directly or indirectly, 90% or more of the voting shares.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 5. A company that fulfills its contractual obligations by providing mutual endorsements/guarantees for another company in the same industry or for joint builders for purposes of undertaking a construction project.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 6. A company that all capital contributing shareholders make endorsements/guarantees for their jointly invested company in proportion to their shareholding percentages.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 7. Companies in the same industry provide among themselves joint and several security for a performance guarantee of a sales contract for pre-construction homes pursuant to the Consumer Protection Act for each other. | Note 2: According to the "Guidelines Governing the Preparation of Financial Reports by Securities Issuers" issued by the R.O.C. Securities and Futures Bureau, receiving parties should be disclosed as one of the following:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1. A company with which it does business.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2. A company in which the public company directly and indirectly holds more than 50% of the voting shares.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 3. A company that directly and indirectly holds more than 50% of the voting shares in the public company.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 4. A company in which the public company holds, directly or indirectly, 90% or more of the voting shares.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 5. A company that fulfills its contractual obligations by providing mutual endorsements/guarantees for another company in the same industry or for joint builders for purposes of undertaking a construction project.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 6. A company that all capital contributing shareholders make endorsements/guarantees for their jointly invested company in proportion to their shareholding percentages.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 7. Companies in the same industry provide among themselves joint and several security for a performance guarantee of a sales contract for pre-construction homes pursuant to the Consumer Protection Act for each other. |
| Note 3: The amount of endorsements/guarantees shall not exceed 45% of the net worth of endorsor/guarantor, and the ceilings on the amount of endorsements/guarantees for any single entity are as follows:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1. The amount of endorsements/guarantees for any single entity shall not exceed 45% of net worth of endorsor/guarantor.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2. The amount of endorsements/guarantees for a company which endorsor/guarantor does business with, except the ceiling rules abovementioned shall not exceed the needed amounts arising from<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; business dealings which is the higher amount of total sales or purchase transactions between endorsor/guarantor and the receiving party.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The aggregate amount of endorsements/guarantees that the Company as a whole is permitted to make shall not exceed 45% of the Company's net worth, and the aggregate amount of<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; endorsements/guarantees for any single entity shall not exceed 45% of the Company's net worth. | Note 3: The amount of endorsements/guarantees shall not exceed 45% of the net worth of endorsor/guarantor, and the ceilings on the amount of endorsements/guarantees for any single entity are as follows:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1. The amount of endorsements/guarantees for any single entity shall not exceed 45% of net worth of endorsor/guarantor.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2. The amount of endorsements/guarantees for a company which endorsor/guarantor does business with, except the ceiling rules abovementioned shall not exceed the needed amounts arising from<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; business dealings which is the higher amount of total sales or purchase transactions between endorsor/guarantor and the receiving party.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The aggregate amount of endorsements/guarantees that the Company as a whole is permitted to make shall not exceed 45% of the Company's net worth, and the aggregate amount of<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; endorsements/guarantees for any single entity shall not exceed 45% of the Company's net worth. | Note 3: The amount of endorsements/guarantees shall not exceed 45% of the net worth of endorsor/guarantor, and the ceilings on the amount of endorsements/guarantees for any single entity are as follows:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1. The amount of endorsements/guarantees for any single entity shall not exceed 45% of net worth of endorsor/guarantor.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2. The amount of endorsements/guarantees for a company which endorsor/guarantor does business with, except the ceiling rules abovementioned shall not exceed the needed amounts arising from<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; business dealings which is the higher amount of total sales or purchase transactions between endorsor/guarantor and the receiving party.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The aggregate amount of endorsements/guarantees that the Company as a whole is permitted to make shall not exceed 45% of the Company's net worth, and the aggregate amount of<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; endorsements/guarantees for any single entity shall not exceed 45% of the Company's net worth. | Note 3: The amount of endorsements/guarantees shall not exceed 45% of the net worth of endorsor/guarantor, and the ceilings on the amount of endorsements/guarantees for any single entity are as follows:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1. The amount of endorsements/guarantees for any single entity shall not exceed 45% of net worth of endorsor/guarantor.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2. The amount of endorsements/guarantees for a company which endorsor/guarantor does business with, except the ceiling rules abovementioned shall not exceed the needed amounts arising from<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; business dealings which is the higher amount of total sales or purchase transactions between endorsor/guarantor and the receiving party.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The aggregate amount of endorsements/guarantees that the Company as a whole is permitted to make shall not exceed 45% of the Company's net worth, and the aggregate amount of<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; endorsements/guarantees for any single entity shall not exceed 45% of the Company's net worth. | Note 3: The amount of endorsements/guarantees shall not exceed 45% of the net worth of endorsor/guarantor, and the ceilings on the amount of endorsements/guarantees for any single entity are as follows:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1. The amount of endorsements/guarantees for any single entity shall not exceed 45% of net worth of endorsor/guarantor.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2. The amount of endorsements/guarantees for a company which endorsor/guarantor does business with, except the ceiling rules abovementioned shall not exceed the needed amounts arising from<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; business dealings which is the higher amount of total sales or purchase transactions between endorsor/guarantor and the receiving party.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The aggregate amount of endorsements/guarantees that the Company as a whole is permitted to make shall not exceed 45% of the Company's net worth, and the aggregate amount of<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; endorsements/guarantees for any single entity shall not exceed 45% of the Company's net worth. | Note 3: The amount of endorsements/guarantees shall not exceed 45% of the net worth of endorsor/guarantor, and the ceilings on the amount of endorsements/guarantees for any single entity are as follows:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1. The amount of endorsements/guarantees for any single entity shall not exceed 45% of net worth of endorsor/guarantor.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2. The amount of endorsements/guarantees for a company which endorsor/guarantor does business with, except the ceiling rules abovementioned shall not exceed the needed amounts arising from<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; business dealings which is the higher amount of total sales or purchase transactions between endorsor/guarantor and the receiving party.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The aggregate amount of endorsements/guarantees that the Company as a whole is permitted to make shall not exceed 45% of the Company's net worth, and the aggregate amount of<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; endorsements/guarantees for any single entity shall not exceed 45% of the Company's net worth. | Note 3: The amount of endorsements/guarantees shall not exceed 45% of the net worth of endorsor/guarantor, and the ceilings on the amount of endorsements/guarantees for any single entity are as follows:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1. The amount of endorsements/guarantees for any single entity shall not exceed 45% of net worth of endorsor/guarantor.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2. The amount of endorsements/guarantees for a company which endorsor/guarantor does business with, except the ceiling rules abovementioned shall not exceed the needed amounts arising from<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; business dealings which is the higher amount of total sales or purchase transactions between endorsor/guarantor and the receiving party.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The aggregate amount of endorsements/guarantees that the Company as a whole is permitted to make shall not exceed 45% of the Company's net worth, and the aggregate amount of<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; endorsements/guarantees for any single entity shall not exceed 45% of the Company's net worth. | Note 3: The amount of endorsements/guarantees shall not exceed 45% of the net worth of endorsor/guarantor, and the ceilings on the amount of endorsements/guarantees for any single entity are as follows:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1. The amount of endorsements/guarantees for any single entity shall not exceed 45% of net worth of endorsor/guarantor.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2. The amount of endorsements/guarantees for a company which endorsor/guarantor does business with, except the ceiling rules abovementioned shall not exceed the needed amounts arising from<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; business dealings which is the higher amount of total sales or purchase transactions between endorsor/guarantor and the receiving party.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The aggregate amount of endorsements/guarantees that the Company as a whole is permitted to make shall not exceed 45% of the Company's net worth, and the aggregate amount of<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; endorsements/guarantees for any single entity shall not exceed 45% of the Company's net worth. | Note 3: The amount of endorsements/guarantees shall not exceed 45% of the net worth of endorsor/guarantor, and the ceilings on the amount of endorsements/guarantees for any single entity are as follows:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1. The amount of endorsements/guarantees for any single entity shall not exceed 45% of net worth of endorsor/guarantor.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2. The amount of endorsements/guarantees for a company which endorsor/guarantor does business with, except the ceiling rules abovementioned shall not exceed the needed amounts arising from<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; business dealings which is the higher amount of total sales or purchase transactions between endorsor/guarantor and the receiving party.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The aggregate amount of endorsements/guarantees that the Company as a whole is permitted to make shall not exceed 45% of the Company's net worth, and the aggregate amount of<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; endorsements/guarantees for any single entity shall not exceed 45% of the Company's net worth. | Note 3: The amount of endorsements/guarantees shall not exceed 45% of the net worth of endorsor/guarantor, and the ceilings on the amount of endorsements/guarantees for any single entity are as follows:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1. The amount of endorsements/guarantees for any single entity shall not exceed 45% of net worth of endorsor/guarantor.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2. The amount of endorsements/guarantees for a company which endorsor/guarantor does business with, except the ceiling rules abovementioned shall not exceed the needed amounts arising from<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; business dealings which is the higher amount of total sales or purchase transactions between endorsor/guarantor and the receiving party.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The aggregate amount of endorsements/guarantees that the Company as a whole is permitted to make shall not exceed 45% of the Company's net worth, and the aggregate amount of<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; endorsements/guarantees for any single entity shall not exceed 45% of the Company's net worth. | Note 3: The amount of endorsements/guarantees shall not exceed 45% of the net worth of endorsor/guarantor, and the ceilings on the amount of endorsements/guarantees for any single entity are as follows:<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1. The amount of endorsements/guarantees for any single entity shall not exceed 45% of net worth of endorsor/guarantor.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 2. The amount of endorsements/guarantees for a company which endorsor/guarantor does business with, except the ceiling rules abovementioned shall not exceed the needed amounts arising from<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; business dealings which is the higher amount of total sales or purchase transactions between endorsor/guarantor and the receiving party.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The aggregate amount of endorsements/guarantees that the Company as a whole is permitted to make shall not exceed 45% of the Company's net worth, and the aggregate amount of<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; endorsements/guarantees for any single entity shall not exceed 45% of the Company's net worth. |
| Note 4: Limit of total guarantee/endorsement amount shall not exceed 45% of UMC's net assets value as of September 30, 2025. | Note 4: Limit of total guarantee/endorsement amount shall not exceed 45% of UMC's net assets value as of September 30, 2025. | Note 4: Limit of total guarantee/endorsement amount shall not exceed 45% of UMC's net assets value as of September 30, 2025. | Note 4: Limit of total guarantee/endorsement amount shall not exceed 45% of UMC's net assets value as of September 30, 2025. | Note 4: Limit of total guarantee/endorsement amount shall not exceed 45% of UMC's net assets value as of September 30, 2025. | Note 4: Limit of total guarantee/endorsement amount shall not exceed 45% of UMC's net assets value as of September 30, 2025. | Note 4: Limit of total guarantee/endorsement amount shall not exceed 45% of UMC's net assets value as of September 30, 2025. | Note 4: Limit of total guarantee/endorsement amount shall not exceed 45% of UMC's net assets value as of September 30, 2025. | Note 4: Limit of total guarantee/endorsement amount shall not exceed 45% of UMC's net assets value as of September 30, 2025. | Note 4: Limit of total guarantee/endorsement amount shall not exceed 45% of UMC's net assets value as of September 30, 2025. | Note 4: Limit of total guarantee/endorsement amount shall not exceed 45% of UMC's net assets value as of September 30, 2025. |
| Note 5: Total endorsement amount is up to RMB 0.86 billion. As of September 30, 2025, actual amount provided was NT$3.54 billion. | Note 5: Total endorsement amount is up to RMB 0.86 billion. As of September 30, 2025, actual amount provided was NT$3.54 billion. | Note 5: Total endorsement amount is up to RMB 0.86 billion. As of September 30, 2025, actual amount provided was NT$3.54 billion. | Note 5: Total endorsement amount is up to RMB 0.86 billion. As of September 30, 2025, actual amount provided was NT$3.54 billion. | Note 5: Total endorsement amount is up to RMB 0.86 billion. As of September 30, 2025, actual amount provided was NT$3.54 billion. | Note 5: Total endorsement amount is up to RMB 0.86 billion. As of September 30, 2025, actual amount provided was NT$3.54 billion. | Note 5: Total endorsement amount is up to RMB 0.86 billion. As of September 30, 2025, actual amount provided was NT$3.54 billion. | Note 5: Total endorsement amount is up to RMB 0.86 billion. As of September 30, 2025, actual amount provided was NT$3.54 billion. | Note 5: Total endorsement amount is up to RMB 0.86 billion. As of September 30, 2025, actual amount provided was NT$3.54 billion. | Note 5: Total endorsement amount is up to RMB 0.86 billion. As of September 30, 2025, actual amount provided was NT$3.54 billion. | Note 5: Total endorsement amount is up to RMB 0.86 billion. As of September 30, 2025, actual amount provided was NT$3.54 billion. |
| Note 6: Limit of total endorsed/guaranteed amount shall not exceed 45% of HEJIAN TECHNOLOGY (SUZHOU) CO., LTD.'s net assets value as of September 30, 2025.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The amount of endorsements/guarantees for any single entity shall not exceed 45% of net worth of HEJIAN TECHNOLOGY (SUZHOU) CO., LTD.'s net assets value as of September 30, 2025.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The aggregate amount of endorsements/guarantees that the Company as a whole is permitted to make shall not exceed 45% of the Company's net worth, and the aggregate amount of<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; endorsements/guarantees for any single entity shall not exceed 45% of the Company's net worth. | Note 6: Limit of total endorsed/guaranteed amount shall not exceed 45% of HEJIAN TECHNOLOGY (SUZHOU) CO., LTD.'s net assets value as of September 30, 2025.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The amount of endorsements/guarantees for any single entity shall not exceed 45% of net worth of HEJIAN TECHNOLOGY (SUZHOU) CO., LTD.'s net assets value as of September 30, 2025.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The aggregate amount of endorsements/guarantees that the Company as a whole is permitted to make shall not exceed 45% of the Company's net worth, and the aggregate amount of<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; endorsements/guarantees for any single entity shall not exceed 45% of the Company's net worth. | Note 6: Limit of total endorsed/guaranteed amount shall not exceed 45% of HEJIAN TECHNOLOGY (SUZHOU) CO., LTD.'s net assets value as of September 30, 2025.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The amount of endorsements/guarantees for any single entity shall not exceed 45% of net worth of HEJIAN TECHNOLOGY (SUZHOU) CO., LTD.'s net assets value as of September 30, 2025.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The aggregate amount of endorsements/guarantees that the Company as a whole is permitted to make shall not exceed 45% of the Company's net worth, and the aggregate amount of<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; endorsements/guarantees for any single entity shall not exceed 45% of the Company's net worth. | Note 6: Limit of total endorsed/guaranteed amount shall not exceed 45% of HEJIAN TECHNOLOGY (SUZHOU) CO., LTD.'s net assets value as of September 30, 2025.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The amount of endorsements/guarantees for any single entity shall not exceed 45% of net worth of HEJIAN TECHNOLOGY (SUZHOU) CO., LTD.'s net assets value as of September 30, 2025.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The aggregate amount of endorsements/guarantees that the Company as a whole is permitted to make shall not exceed 45% of the Company's net worth, and the aggregate amount of<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; endorsements/guarantees for any single entity shall not exceed 45% of the Company's net worth. | Note 6: Limit of total endorsed/guaranteed amount shall not exceed 45% of HEJIAN TECHNOLOGY (SUZHOU) CO., LTD.'s net assets value as of September 30, 2025.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The amount of endorsements/guarantees for any single entity shall not exceed 45% of net worth of HEJIAN TECHNOLOGY (SUZHOU) CO., LTD.'s net assets value as of September 30, 2025.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The aggregate amount of endorsements/guarantees that the Company as a whole is permitted to make shall not exceed 45% of the Company's net worth, and the aggregate amount of<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; endorsements/guarantees for any single entity shall not exceed 45% of the Company's net worth. | Note 6: Limit of total endorsed/guaranteed amount shall not exceed 45% of HEJIAN TECHNOLOGY (SUZHOU) CO., LTD.'s net assets value as of September 30, 2025.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The amount of endorsements/guarantees for any single entity shall not exceed 45% of net worth of HEJIAN TECHNOLOGY (SUZHOU) CO., LTD.'s net assets value as of September 30, 2025.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The aggregate amount of endorsements/guarantees that the Company as a whole is permitted to make shall not exceed 45% of the Company's net worth, and the aggregate amount of<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; endorsements/guarantees for any single entity shall not exceed 45% of the Company's net worth. | Note 6: Limit of total endorsed/guaranteed amount shall not exceed 45% of HEJIAN TECHNOLOGY (SUZHOU) CO., LTD.'s net assets value as of September 30, 2025.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The amount of endorsements/guarantees for any single entity shall not exceed 45% of net worth of HEJIAN TECHNOLOGY (SUZHOU) CO., LTD.'s net assets value as of September 30, 2025.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The aggregate amount of endorsements/guarantees that the Company as a whole is permitted to make shall not exceed 45% of the Company's net worth, and the aggregate amount of<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; endorsements/guarantees for any single entity shall not exceed 45% of the Company's net worth. | Note 6: Limit of total endorsed/guaranteed amount shall not exceed 45% of HEJIAN TECHNOLOGY (SUZHOU) CO., LTD.'s net assets value as of September 30, 2025.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The amount of endorsements/guarantees for any single entity shall not exceed 45% of net worth of HEJIAN TECHNOLOGY (SUZHOU) CO., LTD.'s net assets value as of September 30, 2025.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The aggregate amount of endorsements/guarantees that the Company as a whole is permitted to make shall not exceed 45% of the Company's net worth, and the aggregate amount of<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; endorsements/guarantees for any single entity shall not exceed 45% of the Company's net worth. | Note 6: Limit of total endorsed/guaranteed amount shall not exceed 45% of HEJIAN TECHNOLOGY (SUZHOU) CO., LTD.'s net assets value as of September 30, 2025.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The amount of endorsements/guarantees for any single entity shall not exceed 45% of net worth of HEJIAN TECHNOLOGY (SUZHOU) CO., LTD.'s net assets value as of September 30, 2025.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The aggregate amount of endorsements/guarantees that the Company as a whole is permitted to make shall not exceed 45% of the Company's net worth, and the aggregate amount of<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; endorsements/guarantees for any single entity shall not exceed 45% of the Company's net worth. | Note 6: Limit of total endorsed/guaranteed amount shall not exceed 45% of HEJIAN TECHNOLOGY (SUZHOU) CO., LTD.'s net assets value as of September 30, 2025.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The amount of endorsements/guarantees for any single entity shall not exceed 45% of net worth of HEJIAN TECHNOLOGY (SUZHOU) CO., LTD.'s net assets value as of September 30, 2025.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The aggregate amount of endorsements/guarantees that the Company as a whole is permitted to make shall not exceed 45% of the Company's net worth, and the aggregate amount of<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; endorsements/guarantees for any single entity shall not exceed 45% of the Company's net worth. | Note 6: Limit of total endorsed/guaranteed amount shall not exceed 45% of HEJIAN TECHNOLOGY (SUZHOU) CO., LTD.'s net assets value as of September 30, 2025.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The amount of endorsements/guarantees for any single entity shall not exceed 45% of net worth of HEJIAN TECHNOLOGY (SUZHOU) CO., LTD.'s net assets value as of September 30, 2025.<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The aggregate amount of endorsements/guarantees that the Company as a whole is permitted to make shall not exceed 45% of the Company's net worth, and the aggregate amount of<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; endorsements/guarantees for any single entity shall not exceed 45% of the Company's net worth. |

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|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| ATTACHMENT 4 (Significant securities held as of September 30, 2025) (Excluding subsidiaries, associates and joint ventures) | ATTACHMENT 4 (Significant securities held as of September 30, 2025) (Excluding subsidiaries, associates and joint ventures) | ATTACHMENT 4 (Significant securities held as of September 30, 2025) (Excluding subsidiaries, associates and joint ventures) | ATTACHMENT 4 (Significant securities held as of September 30, 2025) (Excluding subsidiaries, associates and joint ventures) | ATTACHMENT 4 (Significant securities held as of September 30, 2025) (Excluding subsidiaries, associates and joint ventures) | ATTACHMENT 4 (Significant securities held as of September 30, 2025) (Excluding subsidiaries, associates and joint ventures) | ATTACHMENT 4 (Significant securities held as of September 30, 2025) (Excluding subsidiaries, associates and joint ventures) | ATTACHMENT 4 (Significant securities held as of September 30, 2025) (Excluding subsidiaries, associates and joint ventures) | ATTACHMENT 4 (Significant securities held as of September 30, 2025) (Excluding subsidiaries, associates and joint ventures) | ATTACHMENT 4 (Significant securities held as of September 30, 2025) (Excluding subsidiaries, associates and joint ventures) | ATTACHMENT 4 (Significant securities held as of September 30, 2025) (Excluding subsidiaries, associates and joint ventures) | ATTACHMENT 4 (Significant securities held as of September 30, 2025) (Excluding subsidiaries, associates and joint ventures) |
| (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) |
|  |  |  |  |  | September 30, 2025 | September 30, 2025 | September 30, 2025 | September 30, 2025 | September 30, 2025 | September 30, 2025 |  |
| Investor Company | Type of securities | Name of securities | Relationship | Financial statement account | Units (thousand)/ bonds/ shares (thousand) | Carrying amount | Carrying amount | Percentage of ownership (%) | Fair value/<br>Net assets value | Fair value/<br>Net assets value | Shares as collateral<br>(thousand) |
| UNITED MICROELECTRONICS CORPORATION | Stock | PIXART IMAGING, INC. | - | Financial assets at fair value through profit or loss, current | 1600 |  | $388000 | 1.07 |  | $388000 |  |
|  | Fund | TGVEST ASIA PARTNERS II(TAIWAN), L.P. | - | Financial assets at fair value through profit or loss, noncurrent | - |  | 761543 | - |  | 761543 |  |
|  | Stock | HOLTEK SEMICONDUCTOR INC. | - | Financial assets at fair value through profit or loss, noncurrent | 22144 |  | 926737 | 9.61 |  | 926737 |  |
|  | Fund | GRANDFULL CONVERGENCE INNOVATION GROWTH FUND, L.P. | - | Financial assets at fair value through profit or loss, noncurrent | - |  | 286281 | - |  | 286281 |  |
|  | Stock | UNITED INDUSTRIAL GASES CO., LTD. | - | Financial assets at fair value through profit or loss, noncurrent | 16680 |  | 1307855 | 7.66 |  | 1307855 |  |
|  | Stock | OCTTASIA INVESTMENT HOLDING INC. | - | Financial assets at fair value through profit or loss, noncurrent | 4530 |  | 223240 | 6.29 |  | 223240 |  |
|  | Stock | ENNOSTAR INC. | - | Financial assets at fair value through profit or loss, noncurrent | 5357 |  | 210282 | 0.73 |  | 210282 |  |
|  | Stock | NOVATEK MICROELECTRONICS CORP. | - | Financial assets at fair value through other comprehensive income, current | 12381 |  | 5280436 | 2.03 |  | 5280436 |  |
|  | Stock | UNIMICRON HOLDING LIMITED | Associate | Financial assets at fair value through other comprehensive income, noncurrent | 15129 |  | 2614004 | 10.57 |  | 2614004 |  |
|  | Stock | ITE TECH. INC. | - | Financial assets at fair value through other comprehensive income, noncurrent | 13960 |  | 1863657 | 8.41 |  | 1863657 |  |
|  | Stock | KAI-HONG ENERGY CO., LTD. | - | Financial assets at fair value through other comprehensive income, noncurrent | 6469 |  | 66829 | 3.4 |  | 66829 |  |
|  | Stock | CHIPBOND TECHNOLOGY CORPORATION | - | Financial assets at fair value through other comprehensive income, noncurrent | 53164 |  | 2945276 | 7.14 |  | 2945276 |  |
|  | Stock | TAIWAN SMART ELECTRICITY & ENERGY CO., LTD. | - | Financial assets at fair value through other comprehensive income, noncurrent | 15000 |  | 147750 | 9.52 |  | 147750 |  |
|  | Stock | NOVATEK MICROELECTRONICS CORP. | - | Financial assets at fair value through other comprehensive income, noncurrent | 4064 |  | 1733180 | 0.67 |  | 1733180 |  |
|  | Stock-preferred stock | MTIC HOLDINGS PTE. LTD. | Associate | Financial assets at fair value through other comprehensive income, noncurrent | 12000 |  | 200039 | - |  | 200039 |  |
| FORTUNE VENTURE CAPITAL CORP. | Stock | TOPOINT TECHNOLOGY CO., LTD. | - | Financial assets at fair value through profit or loss, noncurrent | 4416 |  | 446031 | 3.11 |  | 446031 |  |
|  | Stock | CENTERA PHOTONICS INC. | - | Financial assets at fair value through profit or loss, noncurrent | 1762 |  | 393386 | 2.71 |  | 393386 |  |
|  | Stock | TAIWAN SEMICONDUCTOR CO., LTD. | - | Financial assets at fair value through profit or loss, noncurrent | 6741 |  | 370755 | 2.56 |  | 370755 |  |
|  | Stock | CHIPBOND TECHNOLOGY CORPORATION | - | Financial assets at fair value through profit or loss, noncurrent | 13489 |  | 747263 | 1.81 |  | 747263 |  |
|  | Stock | AIROHA TECHNOLOGY CORP. | - | Financial assets at fair value through profit or loss, noncurrent | 400 |  | 207600 | 0.24 |  | 207600 |  |
|  | Stock-Preferred Stock | EJOULE INTERNATIONAL LTD. | - | Financial assets at fair value through profit or loss, noncurrent | 23909 |  | 158432 | - |  | 158432 |  |
|  | Stock-Preferred Stock | SONATUS, INC. | - | Financial assets at fair value through profit or loss, noncurrent | 897 |  | 206459 | - |  | 206459 |  |
|  | Fund | TRANSLINK CAPITAL PARTNERS IV, L.P. | - | Financial assets at fair value through profit or loss, noncurrent | - |  | 188622 | - |  | 188622 |  |
|  | Fund | TRANSLINK CAPITAL PARTNERS V, L.P. | - | Financial assets at fair value through profit or loss, noncurrent | - |  | 121165 | - |  | 121165 |  |
|  | Stock | SHIN-ETSU HANDOTAI TAIWAN CO., LTD. | - | Financial assets at fair value through other comprehensive income, noncurrent | 10500 |  | 961800 | 7.00 |  | 961800 |  |
| TLC CAPITAL CO., LTD. | Stock | ARTERY TECHNOLOGY CORP. | Associate | Financial assets at fair value through profit or loss, noncurrent | 5112 |  | 201617 | 9.99 |  | 201617 |  |
|  | Stock | SIMPLO TECHNOLOGY CO., LTD. | - | Financial assets at fair value through profit or loss, noncurrent | 1422 |  | 526319 | 0.77 |  | 526319 |  |
|  | Fund | TRANSLINK CAPITAL PARTNERS III, L.P. | - | Financial assets at fair value through profit or loss, noncurrent | - |  | 130787 | - |  | 130787 |  |
|  | Stock-Preferred stock | EJOULE INTERNATIONAL LTD. | - | Financial assets at fair value through profit or loss, noncurrent | 50767 |  | 384512 | - |  | 384512 |  |
| UMC CAPITAL CORP. | Stock | OCTTASIA INVESTMENT HOLDING INC. | - | Financial assets at fair value through profit or loss, noncurrent | 5594 | USD | 9062 | 7.76 | USD | 9062 |  |
|  | Stock | ALL-STARS SP IV LTD. | - | Financial assets at fair value through profit or loss, noncurrent | 7 | USD | 6753 | 5.03 | USD | 6753 |  |
|  | Fund | TRANSLINK CAPITAL PARTNERS III, L.P. | - | Financial assets at fair value through profit or loss, noncurrent | - | USD | 11624 | - | USD | 11624 |  |
|  | Fund | STORM VENTURES FUND V, L.P. | - | Financial assets at fair value through profit or loss, noncurrent | - | USD | 9094 | - | USD | 9094 |  |

---

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| | | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| ATTACHMENT 4 (Significant securities held as of September 30, 2025) (Excluding subsidiaries, associates and joint ventures) | ATTACHMENT 4 (Significant securities held as of September 30, 2025) (Excluding subsidiaries, associates and joint ventures) | ATTACHMENT 4 (Significant securities held as of September 30, 2025) (Excluding subsidiaries, associates and joint ventures) | ATTACHMENT 4 (Significant securities held as of September 30, 2025) (Excluding subsidiaries, associates and joint ventures) | ATTACHMENT 4 (Significant securities held as of September 30, 2025) (Excluding subsidiaries, associates and joint ventures) | ATTACHMENT 4 (Significant securities held as of September 30, 2025) (Excluding subsidiaries, associates and joint ventures) | ATTACHMENT 4 (Significant securities held as of September 30, 2025) (Excluding subsidiaries, associates and joint ventures) | ATTACHMENT 4 (Significant securities held as of September 30, 2025) (Excluding subsidiaries, associates and joint ventures) | ATTACHMENT 4 (Significant securities held as of September 30, 2025) (Excluding subsidiaries, associates and joint ventures) | ATTACHMENT 4 (Significant securities held as of September 30, 2025) (Excluding subsidiaries, associates and joint ventures) | ATTACHMENT 4 (Significant securities held as of September 30, 2025) (Excluding subsidiaries, associates and joint ventures) | ATTACHMENT 4 (Significant securities held as of September 30, 2025) (Excluding subsidiaries, associates and joint ventures) |
| (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) |
|  |  |  |  |  | September 30, 2025 | September 30, 2025 | September 30, 2025 | September 30, 2025 | September 30, 2025 | September 30, 2025 |  |
| Investor Company | Type of securities | Name of securities | Relationship | Financial statement account | Units (thousand)/ bonds/ shares (thousand) | Carrying amount | Carrying amount | Percentage of ownership (%) | Fair value/<br>Net assets value | Fair value/<br>Net assets value | Shares as collateral<br>(thousand) |
| UMC CAPITAL CORP. | Fund | SIERRA VENTURES XI, L.P. | - | Financial assets at fair value through profit or loss, noncurrent | - | USD | 12410 | - | USD | 12410 |  |
|  | Fund | TRANSLINK CAPITAL PARTNERS IV, L.P. | - | Financial assets at fair value through profit or loss, noncurrent | - | USD | 18602 | - | USD | 18602 |  |
|  | Fund | TRANSLINK CAPITAL PARTNERS V, L.P. | - | Financial assets at fair value through profit or loss, noncurrent | - | USD | 2655 | - | USD | 2655 |  |
|  | Fund | 7V AI CAPITAL LLC | - | Financial assets at fair value through profit or loss, noncurrent | - | USD | 8783 | - | USD | 8783 |  |

---

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| | | | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| ATTACHMENT 5 (Related party transactions for purchases and sales amounts exceeding the lower of NT$100 million or 20 percent of capital stock for the nine-month period ended September 30, 2025) | ATTACHMENT 5 (Related party transactions for purchases and sales amounts exceeding the lower of NT$100 million or 20 percent of capital stock for the nine-month period ended September 30, 2025) | ATTACHMENT 5 (Related party transactions for purchases and sales amounts exceeding the lower of NT$100 million or 20 percent of capital stock for the nine-month period ended September 30, 2025) | ATTACHMENT 5 (Related party transactions for purchases and sales amounts exceeding the lower of NT$100 million or 20 percent of capital stock for the nine-month period ended September 30, 2025) | ATTACHMENT 5 (Related party transactions for purchases and sales amounts exceeding the lower of NT$100 million or 20 percent of capital stock for the nine-month period ended September 30, 2025) | ATTACHMENT 5 (Related party transactions for purchases and sales amounts exceeding the lower of NT$100 million or 20 percent of capital stock for the nine-month period ended September 30, 2025) | ATTACHMENT 5 (Related party transactions for purchases and sales amounts exceeding the lower of NT$100 million or 20 percent of capital stock for the nine-month period ended September 30, 2025) | ATTACHMENT 5 (Related party transactions for purchases and sales amounts exceeding the lower of NT$100 million or 20 percent of capital stock for the nine-month period ended September 30, 2025) | ATTACHMENT 5 (Related party transactions for purchases and sales amounts exceeding the lower of NT$100 million or 20 percent of capital stock for the nine-month period ended September 30, 2025) | ATTACHMENT 5 (Related party transactions for purchases and sales amounts exceeding the lower of NT$100 million or 20 percent of capital stock for the nine-month period ended September 30, 2025) | ATTACHMENT 5 (Related party transactions for purchases and sales amounts exceeding the lower of NT$100 million or 20 percent of capital stock for the nine-month period ended September 30, 2025) | ATTACHMENT 5 (Related party transactions for purchases and sales amounts exceeding the lower of NT$100 million or 20 percent of capital stock for the nine-month period ended September 30, 2025) | ATTACHMENT 5 (Related party transactions for purchases and sales amounts exceeding the lower of NT$100 million or 20 percent of capital stock for the nine-month period ended September 30, 2025) |
| (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) |
| **<u>UNITED MICROELECTRONICS CORPORATION</u>** | **<u>UNITED MICROELECTRONICS CORPORATION</u>** | **<u>UNITED MICROELECTRONICS CORPORATION</u>** | **<u>UNITED MICROELECTRONICS CORPORATION</u>** | **<u>UNITED MICROELECTRONICS CORPORATION</u>** | **<u>UNITED MICROELECTRONICS CORPORATION</u>** | **<u>UNITED MICROELECTRONICS CORPORATION</u>** | **<u>UNITED MICROELECTRONICS CORPORATION</u>** | **<u>UNITED MICROELECTRONICS CORPORATION</u>** | **<u>UNITED MICROELECTRONICS CORPORATION</u>** | **<u>UNITED MICROELECTRONICS CORPORATION</u>** | **<u>UNITED MICROELECTRONICS CORPORATION</u>** | **<u>UNITED MICROELECTRONICS CORPORATION</u>** |
|  |  | Transactions | Transactions | Transactions | Transactions | Transactions | Details of non-arm's length transaction | Details of non-arm's length transaction | Notes and accounts<br>receivable (payable) | Notes and accounts<br>receivable (payable) | Notes and accounts<br>receivable (payable) |  |
| Counterparty | Relationship | Purchases (Sales) | Amount | Amount | Percentage of total purchases (sales) | Term | Unit price | Term | Balance | Balance | Percentage of total receivables (payable) | Note |
| UMC GROUP (USA) | Subsidiary | Sales |  | $39334745 | 29% | Net 60 days | N/A | N/A |  | $7465060 | 30% |  |
| FARADAY TECHNOLOGY CORPORATION | Associate | Sales |  | 1163804 | 1% | Month-end 60 days | N/A | N/A |  | 258303 | 1% |  |
| UNITED SEMICONDUCTOR (XIAMEN) CO., LTD. | Subsidiary | Sales |  | 872279 | 1% | Net 30 days | N/A | N/A |  | 5309 | 0% |  |
| ARTERY TECHNOLOGY CORPORATION, LTD. | Associate | Sales |  | 498081 | 0% | Month-end 60 days | N/A | N/A |  | 146148 | 1% |  |
| UNITEDDS SEMICONDUCTOR (SHANDONG) CO., LTD. | Associate | Sales |  | 486976 | 0% | Net 30 days | N/A | N/A |  | 48296 | 0% |  |
| **<u>UMC GROUP (USA)</u>** | **<u>UMC GROUP (USA)</u>** | **<u>UMC GROUP (USA)</u>** | **<u>UMC GROUP (USA)</u>** | **<u>UMC GROUP (USA)</u>** | **<u>UMC GROUP (USA)</u>** | **<u>UMC GROUP (USA)</u>** | **<u>UMC GROUP (USA)</u>** | **<u>UMC GROUP (USA)</u>** | **<u>UMC GROUP (USA)</u>** | **<u>UMC GROUP (USA)</u>** | **<u>UMC GROUP (USA)</u>** | **<u>UMC GROUP (USA)</u>** |
|  |  | Transactions | Transactions | Transactions | Transactions | Transactions | Details of non-arm's length transaction | Details of non-arm's length transaction | Notes and accounts<br>receivable (payable) | Notes and accounts<br>receivable (payable) | Notes and accounts<br>receivable (payable) |  |
| Counterparty | Relationship | Purchases (Sales) | Amount | Amount | Percentage of total purchases (sales) | Term | Unit price | Term | Balance | Balance | Percentage of total receivables (payable) | Note |
| UNITED MICROELECTRONICS CORPORATION | Parent company | Purchases | USD | 1224328 | 90% | Net 60 days | N/A | N/A | USD | 242670 | 86% |  |
| UNITED SEMICONDUCTOR JAPAN CO., LTD. | Associate | Purchases | USD | 117203 | 9% | Net 60 days | N/A | N/A | USD | 30598 | 11% |  |
| UNITED SEMICONDUCTOR (XIAMEN) CO., LTD. | Associate | Purchases | USD | 9184 | 1% | Net 60 days | N/A | N/A | USD | 853 | 0% |  |
| WAVETEK MICROELECTRONICS CORPORATION | Associate | Purchases | USD | 7371 | 0% | Net 60 days | N/A | N/A | USD | 1757 | 1% |  |
| **<u>UNITED SEMICONDUCTOR JAPAN CO., LTD.</u>** | **<u>UNITED SEMICONDUCTOR JAPAN CO., LTD.</u>** | **<u>UNITED SEMICONDUCTOR JAPAN CO., LTD.</u>** | **<u>UNITED SEMICONDUCTOR JAPAN CO., LTD.</u>** | **<u>UNITED SEMICONDUCTOR JAPAN CO., LTD.</u>** | **<u>UNITED SEMICONDUCTOR JAPAN CO., LTD.</u>** | **<u>UNITED SEMICONDUCTOR JAPAN CO., LTD.</u>** | **<u>UNITED SEMICONDUCTOR JAPAN CO., LTD.</u>** | **<u>UNITED SEMICONDUCTOR JAPAN CO., LTD.</u>** | **<u>UNITED SEMICONDUCTOR JAPAN CO., LTD.</u>** | **<u>UNITED SEMICONDUCTOR JAPAN CO., LTD.</u>** | **<u>UNITED SEMICONDUCTOR JAPAN CO., LTD.</u>** | **<u>UNITED SEMICONDUCTOR JAPAN CO., LTD.</u>** |
|  |  | Transactions | Transactions | Transactions | Transactions | Transactions | Details of non-arm's length transaction | Details of non-arm's length transaction | Notes and accounts<br>receivable (payable) | Notes and accounts<br>receivable (payable) | Notes and accounts<br>receivable (payable) |  |
| Counterparty | Relationship | Purchases (Sales) | Amount | Amount | Percentage of total purchases (sales) | Term | Unit price | Term | Balance | Balance | Percentage of total receivables (payable) | Note |
| UMC GROUP (USA) | Associate | Sales | JPY | 18193972 | 34% | Net 60 days | N/A | N/A | JPY | 4723809 | 32% |  |
| **<u>UNITED SEMICONDUCTOR (XIAMEN) CO., LTD.</u>** | **<u>UNITED SEMICONDUCTOR (XIAMEN) CO., LTD.</u>** | **<u>UNITED SEMICONDUCTOR (XIAMEN) CO., LTD.</u>** | **<u>UNITED SEMICONDUCTOR (XIAMEN) CO., LTD.</u>** | **<u>UNITED SEMICONDUCTOR (XIAMEN) CO., LTD.</u>** | **<u>UNITED SEMICONDUCTOR (XIAMEN) CO., LTD.</u>** | **<u>UNITED SEMICONDUCTOR (XIAMEN) CO., LTD.</u>** | **<u>UNITED SEMICONDUCTOR (XIAMEN) CO., LTD.</u>** | **<u>UNITED SEMICONDUCTOR (XIAMEN) CO., LTD.</u>** | **<u>UNITED SEMICONDUCTOR (XIAMEN) CO., LTD.</u>** | **<u>UNITED SEMICONDUCTOR (XIAMEN) CO., LTD.</u>** | **<u>UNITED SEMICONDUCTOR (XIAMEN) CO., LTD.</u>** | **<u>UNITED SEMICONDUCTOR (XIAMEN) CO., LTD.</u>** |
|  |  | Transactions | Transactions | Transactions | Transactions | Transactions | Details of non-arm's length transaction | Details of non-arm's length transaction | Notes and accounts<br>receivable (payable) | Notes and accounts<br>receivable (payable) | Notes and accounts<br>receivable (payable) |  |
| Counterparty | Relationship | Purchases (Sales) | Amount | Amount | Percentage of total purchases (sales) | Term | Unit price | Term | Balance | Balance | Percentage of total receivables (payable) | Note |
| UMC GROUP (USA) | Associate | Sales | RMB | 70596 | 2% | Net 60 days | N/A | N/A | RMB | 7121 | 1% |  |
| FARADAY TECHNOLOGY CORPORATION | Associate | Sales | RMB | 70269 | 2% | Month-end 60 days | N/A | N/A | RMB | 16522 | 2% |  |
| UNITEDDS SEMICONDUCTOR (SHANDONG) CO., LTD. | Associate | Sales | RMB | 54468 | 1% | Month-end 30 days | N/A | N/A | RMB | 2214 | 0% |  |
| **<u>WAVETEK MICROELECTRONICS CORPORATION</u>** | **<u>WAVETEK MICROELECTRONICS CORPORATION</u>** | **<u>WAVETEK MICROELECTRONICS CORPORATION</u>** | **<u>WAVETEK MICROELECTRONICS CORPORATION</u>** | **<u>WAVETEK MICROELECTRONICS CORPORATION</u>** | **<u>WAVETEK MICROELECTRONICS CORPORATION</u>** | **<u>WAVETEK MICROELECTRONICS CORPORATION</u>** | **<u>WAVETEK MICROELECTRONICS CORPORATION</u>** | **<u>WAVETEK MICROELECTRONICS CORPORATION</u>** | **<u>WAVETEK MICROELECTRONICS CORPORATION</u>** | **<u>WAVETEK MICROELECTRONICS CORPORATION</u>** | **<u>WAVETEK MICROELECTRONICS CORPORATION</u>** | **<u>WAVETEK MICROELECTRONICS CORPORATION</u>** |
|  |  | Transactions | Transactions | Transactions | Transactions | Transactions | Details of non-arm's length transaction | Details of non-arm's length transaction | Notes and accounts<br>receivable (payable) | Notes and accounts<br>receivable (payable) | Notes and accounts<br>receivable (payable) |  |
| Counterparty | Relationship | Purchases (Sales) | Amount | Amount | Percentage of total purchases (sales) | Term | Unit price | Term | Balance | Balance | Percentage of total receivables (payable) | Note |
| UMC GROUP (USA) | Associate | Sales |  | $274622 | 20% | Net 60 days | N/A | N/A |  | $66943 | 35% |  |

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| | | | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| ATTACHMENT 5 (Related party transactions for purchases and sales amounts exceeding the lower of NT$100 million or 20 percent of capital stock for the nine-month period ended September 30, 2025) | ATTACHMENT 5 (Related party transactions for purchases and sales amounts exceeding the lower of NT$100 million or 20 percent of capital stock for the nine-month period ended September 30, 2025) | ATTACHMENT 5 (Related party transactions for purchases and sales amounts exceeding the lower of NT$100 million or 20 percent of capital stock for the nine-month period ended September 30, 2025) | ATTACHMENT 5 (Related party transactions for purchases and sales amounts exceeding the lower of NT$100 million or 20 percent of capital stock for the nine-month period ended September 30, 2025) | ATTACHMENT 5 (Related party transactions for purchases and sales amounts exceeding the lower of NT$100 million or 20 percent of capital stock for the nine-month period ended September 30, 2025) | ATTACHMENT 5 (Related party transactions for purchases and sales amounts exceeding the lower of NT$100 million or 20 percent of capital stock for the nine-month period ended September 30, 2025) | ATTACHMENT 5 (Related party transactions for purchases and sales amounts exceeding the lower of NT$100 million or 20 percent of capital stock for the nine-month period ended September 30, 2025) | ATTACHMENT 5 (Related party transactions for purchases and sales amounts exceeding the lower of NT$100 million or 20 percent of capital stock for the nine-month period ended September 30, 2025) | ATTACHMENT 5 (Related party transactions for purchases and sales amounts exceeding the lower of NT$100 million or 20 percent of capital stock for the nine-month period ended September 30, 2025) | ATTACHMENT 5 (Related party transactions for purchases and sales amounts exceeding the lower of NT$100 million or 20 percent of capital stock for the nine-month period ended September 30, 2025) | ATTACHMENT 5 (Related party transactions for purchases and sales amounts exceeding the lower of NT$100 million or 20 percent of capital stock for the nine-month period ended September 30, 2025) | ATTACHMENT 5 (Related party transactions for purchases and sales amounts exceeding the lower of NT$100 million or 20 percent of capital stock for the nine-month period ended September 30, 2025) | ATTACHMENT 5 (Related party transactions for purchases and sales amounts exceeding the lower of NT$100 million or 20 percent of capital stock for the nine-month period ended September 30, 2025) |
| (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) |
| **<u>HEJIAN TECHNOLOGY (SUZHOU) CO., LTD.</u>** | **<u>HEJIAN TECHNOLOGY (SUZHOU) CO., LTD.</u>** | **<u>HEJIAN TECHNOLOGY (SUZHOU) CO., LTD.</u>** | **<u>HEJIAN TECHNOLOGY (SUZHOU) CO., LTD.</u>** | **<u>HEJIAN TECHNOLOGY (SUZHOU) CO., LTD.</u>** | **<u>HEJIAN TECHNOLOGY (SUZHOU) CO., LTD.</u>** | **<u>HEJIAN TECHNOLOGY (SUZHOU) CO., LTD.</u>** | **<u>HEJIAN TECHNOLOGY (SUZHOU) CO., LTD.</u>** | **<u>HEJIAN TECHNOLOGY (SUZHOU) CO., LTD.</u>** | **<u>HEJIAN TECHNOLOGY (SUZHOU) CO., LTD.</u>** | **<u>HEJIAN TECHNOLOGY (SUZHOU) CO., LTD.</u>** | **<u>HEJIAN TECHNOLOGY (SUZHOU) CO., LTD.</u>** | **<u>HEJIAN TECHNOLOGY (SUZHOU) CO., LTD.</u>** |
|  |  | Transactions | Transactions | Transactions | Transactions | Transactions | Details of non-arm's length transaction | Details of non-arm's length transaction | Notes and accounts<br>receivable (payable) | Notes and accounts<br>receivable (payable) | Notes and accounts<br>receivable (payable) |  |
| Counterparty | Relationship | Purchases (Sales) | Amount | Amount | Percentage of total purchases (sales) | Term | Unit price | Term | Balance | Balance | Percentage of total receivables (payable) | Note |
| UNITEDDS SEMICONDUCTOR (SHANDONG) CO., LTD. | Associate | Sales | RMB | 23813 | 1% | Month-end 30 days | N/A | N/A | RMB | 2710 | 1% |  |

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| | | | | | | | | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| ATTACHMENT 6 (Receivables from related parties with amounts exceeding the lower of NT$100 million or 20 percent of capital stock as of September 30, 2025) | ATTACHMENT 6 (Receivables from related parties with amounts exceeding the lower of NT$100 million or 20 percent of capital stock as of September 30, 2025) | ATTACHMENT 6 (Receivables from related parties with amounts exceeding the lower of NT$100 million or 20 percent of capital stock as of September 30, 2025) | ATTACHMENT 6 (Receivables from related parties with amounts exceeding the lower of NT$100 million or 20 percent of capital stock as of September 30, 2025) | ATTACHMENT 6 (Receivables from related parties with amounts exceeding the lower of NT$100 million or 20 percent of capital stock as of September 30, 2025) | ATTACHMENT 6 (Receivables from related parties with amounts exceeding the lower of NT$100 million or 20 percent of capital stock as of September 30, 2025) | ATTACHMENT 6 (Receivables from related parties with amounts exceeding the lower of NT$100 million or 20 percent of capital stock as of September 30, 2025) | ATTACHMENT 6 (Receivables from related parties with amounts exceeding the lower of NT$100 million or 20 percent of capital stock as of September 30, 2025) | ATTACHMENT 6 (Receivables from related parties with amounts exceeding the lower of NT$100 million or 20 percent of capital stock as of September 30, 2025) | ATTACHMENT 6 (Receivables from related parties with amounts exceeding the lower of NT$100 million or 20 percent of capital stock as of September 30, 2025) | ATTACHMENT 6 (Receivables from related parties with amounts exceeding the lower of NT$100 million or 20 percent of capital stock as of September 30, 2025) | ATTACHMENT 6 (Receivables from related parties with amounts exceeding the lower of NT$100 million or 20 percent of capital stock as of September 30, 2025) | ATTACHMENT 6 (Receivables from related parties with amounts exceeding the lower of NT$100 million or 20 percent of capital stock as of September 30, 2025) | ATTACHMENT 6 (Receivables from related parties with amounts exceeding the lower of NT$100 million or 20 percent of capital stock as of September 30, 2025) | ATTACHMENT 6 (Receivables from related parties with amounts exceeding the lower of NT$100 million or 20 percent of capital stock as of September 30, 2025) | ATTACHMENT 6 (Receivables from related parties with amounts exceeding the lower of NT$100 million or 20 percent of capital stock as of September 30, 2025) | ATTACHMENT 6 (Receivables from related parties with amounts exceeding the lower of NT$100 million or 20 percent of capital stock as of September 30, 2025) | ATTACHMENT 6 (Receivables from related parties with amounts exceeding the lower of NT$100 million or 20 percent of capital stock as of September 30, 2025) |
| (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) |
| **<u>UNITED MICROELECTRONICS CORPORATION</u>** | **<u>UNITED MICROELECTRONICS CORPORATION</u>** | **<u>UNITED MICROELECTRONICS CORPORATION</u>** | **<u>UNITED MICROELECTRONICS CORPORATION</u>** | **<u>UNITED MICROELECTRONICS CORPORATION</u>** | **<u>UNITED MICROELECTRONICS CORPORATION</u>** | **<u>UNITED MICROELECTRONICS CORPORATION</u>** | **<u>UNITED MICROELECTRONICS CORPORATION</u>** | **<u>UNITED MICROELECTRONICS CORPORATION</u>** | **<u>UNITED MICROELECTRONICS CORPORATION</u>** | **<u>UNITED MICROELECTRONICS CORPORATION</u>** | **<u>UNITED MICROELECTRONICS CORPORATION</u>** | **<u>UNITED MICROELECTRONICS CORPORATION</u>** | **<u>UNITED MICROELECTRONICS CORPORATION</u>** | **<u>UNITED MICROELECTRONICS CORPORATION</u>** | **<u>UNITED MICROELECTRONICS CORPORATION</u>** | **<u>UNITED MICROELECTRONICS CORPORATION</u>** | **<u>UNITED MICROELECTRONICS CORPORATION</u>** |
|  |  | Ending balance | Ending balance | Ending balance | Ending balance | Ending balance | Ending balance | Ending balance | Ending balance |  | Overdue receivables | Overdue receivables | Overdue receivables |  |  |  |  |
| Counterparty | Relationship | Notes <br>receivable | Notes <br>receivable | Accounts<br>receivable | Accounts<br>receivable | Other<br> receivables | Other<br> receivables | Total | Total | Turnover rate (times) | Amount | Amount | Collection status | Amount received in subsequent period | Amount received in subsequent period | Loss allowance | Loss allowance |
| UMC GROUP (USA) | Subsidiary |  | $- |  | $7465060 |  | $6165 |  | $7471225 | 7.27 |  | $- | - |  | $4331769 |  | $3963 |
| FARADAY TECHNOLOGY CORPORATION | Associate |  | - |  | 258303 |  | - |  | 258303 | 7.43 |  | 504 | - |  | - |  | 1 |
| ARTERY TECHNOLOGY<br>CORPORATION, LTD. | Associate |  | - |  | 146148 |  | - |  | 146148 | 4.52 |  | 12029 | - |  | - |  | 0 |
| **<u>UNITED SEMICONDUCTOR JAPAN CO., LTD.</u>** | **<u>UNITED SEMICONDUCTOR JAPAN CO., LTD.</u>** | **<u>UNITED SEMICONDUCTOR JAPAN CO., LTD.</u>** | **<u>UNITED SEMICONDUCTOR JAPAN CO., LTD.</u>** | **<u>UNITED SEMICONDUCTOR JAPAN CO., LTD.</u>** | **<u>UNITED SEMICONDUCTOR JAPAN CO., LTD.</u>** | **<u>UNITED SEMICONDUCTOR JAPAN CO., LTD.</u>** | **<u>UNITED SEMICONDUCTOR JAPAN CO., LTD.</u>** | **<u>UNITED SEMICONDUCTOR JAPAN CO., LTD.</u>** | **<u>UNITED SEMICONDUCTOR JAPAN CO., LTD.</u>** | **<u>UNITED SEMICONDUCTOR JAPAN CO., LTD.</u>** | **<u>UNITED SEMICONDUCTOR JAPAN CO., LTD.</u>** | **<u>UNITED SEMICONDUCTOR JAPAN CO., LTD.</u>** | **<u>UNITED SEMICONDUCTOR JAPAN CO., LTD.</u>** | **<u>UNITED SEMICONDUCTOR JAPAN CO., LTD.</u>** | **<u>UNITED SEMICONDUCTOR JAPAN CO., LTD.</u>** | **<u>UNITED SEMICONDUCTOR JAPAN CO., LTD.</u>** | **<u>UNITED SEMICONDUCTOR JAPAN CO., LTD.</u>** |
|  |  | Ending balance | Ending balance | Ending balance | Ending balance | Ending balance | Ending balance | Ending balance | Ending balance |  | Overdue receivables | Overdue receivables | Overdue receivables |  |  |  |  |
| Counterparty | Relationship | Notes <br>receivable | Notes <br>receivable | Accounts<br>receivable | Accounts<br>receivable | Other<br> receivables | Other<br> receivables | Total | Total |  | Amount | Amount | Collection status | Amount received in subsequent period | Amount received in subsequent period | Loss allowance | Loss allowance |
| UMC GROUP (USA) | Associate | JPY | - | JPY | 4723809 | JPY | - | JPY | 4723809 | 5.95 | JPY | - | - | JPY | 2237716 | JPY | - |

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|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| ATTACHMENT 7 (Names, locations and related information of investee companies as of September 30, 2025) (Not including investment in Mainland China) | ATTACHMENT 7 (Names, locations and related information of investee companies as of September 30, 2025) (Not including investment in Mainland China) | ATTACHMENT 7 (Names, locations and related information of investee companies as of September 30, 2025) (Not including investment in Mainland China) | ATTACHMENT 7 (Names, locations and related information of investee companies as of September 30, 2025) (Not including investment in Mainland China) | ATTACHMENT 7 (Names, locations and related information of investee companies as of September 30, 2025) (Not including investment in Mainland China) | ATTACHMENT 7 (Names, locations and related information of investee companies as of September 30, 2025) (Not including investment in Mainland China) | ATTACHMENT 7 (Names, locations and related information of investee companies as of September 30, 2025) (Not including investment in Mainland China) | ATTACHMENT 7 (Names, locations and related information of investee companies as of September 30, 2025) (Not including investment in Mainland China) | ATTACHMENT 7 (Names, locations and related information of investee companies as of September 30, 2025) (Not including investment in Mainland China) | ATTACHMENT 7 (Names, locations and related information of investee companies as of September 30, 2025) (Not including investment in Mainland China) | ATTACHMENT 7 (Names, locations and related information of investee companies as of September 30, 2025) (Not including investment in Mainland China) | ATTACHMENT 7 (Names, locations and related information of investee companies as of September 30, 2025) (Not including investment in Mainland China) | ATTACHMENT 7 (Names, locations and related information of investee companies as of September 30, 2025) (Not including investment in Mainland China) | ATTACHMENT 7 (Names, locations and related information of investee companies as of September 30, 2025) (Not including investment in Mainland China) |
| (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) |
|  |  |  |  | Initial Investment | Initial Investment | Initial Investment | Initial Investment | Investment as of September 30, 2025 | Investment as of September 30, 2025 | Investment as of September 30, 2025 |  |  |  |
| Investor Company | Investee company | Address | Main businesses and products | Ending balance | Ending balance | Beginning balance | Beginning balance | Number of shares (thousand) | Percentage of ownership<br>(%) | Carrying amount | Net income (loss) of investee company | Investment income (loss) recognized | Note |
| UNITED MICROELECTRONICS CORPORATION | UMC GROUP (USA) | USA | IC Sales | USD | 16438 | USD | 16438 | 16438 | 100.00 | $2499806 | $154237 | $154237 |  |
|  | UNITED MICROELECTRONICS (EUROPE) B.V. | The Netherlands | Marketing support activities | USD | 5421 | USD | 5421 | 9 | 100.00 | 174975 | 5405 | 5405 |  |
|  | UMC CAPITAL CORP. | Cayman Islands | Investment holding | USD | 103500 | USD | 103500 | 93663 | 100.00 | 4626161 | (963470) | (963470) |  |
|  | GREEN EARTH LIMITED | Samoa | Investment holding | USD | 1549000 | USD | 1549000 | 1549000 | 100.00 | 30052474 | 4355552 | 4355552 |  |
|  | TLC CAPITAL CO., LTD. | Taipei City, Taiwan | Venture capital |  | 4610000 |  | 4610000 | 473530 | 100.00 | 4989548 | (96152) | (96152) |  |
|  | UMC INVESTMENT (SAMOA) LIMITED | Samoa | Investment holding | USD | 1520 | USD | 1520 | 1520 | 100.00 | 47141 | (2295) | (2295) |  |
|  | FORTUNE VENTURE CAPITAL CORP. | Taipei City, Taiwan | Consulting and planning for venture capital |  | 3440053 |  | 3440053 | 585462 | 100.00 | 8372302 | 852856 | 852856 |  |
|  | UMC KOREA CO., LTD. | Korea | Marketing support activities | KRW | 550000 | KRW | 550000 | 110 | 100.00 | 29164 | 1363 | 1363 |  |
|  | OMNI GLOBAL LIMITED | Samoa | Investment holding | USD | 4300 | USD | 4300 | 4300 | 100.00 | 843918 | 20566 | 20566 |  |
|  | SINO PARAGON LIMITED | Samoa | Investment holding | USD | 2600 | USD | 2600 | 2600 | 100.00 | 130555 | (37958) | (37958) |  |
|  | BEST ELITE INTERNATIONAL LIMITED | British Virgin Islands | Investment holding | USD | 309102 | USD | 309102 | 664966 | 100.00 | 41855739 | 4946154 | 4946154 |  |
|  | UNITED SEMICONDUCTOR JAPAN CO., LTD. | Japan | Sales and manufacturing of integrated circuits | JPY | 64421068 | JPY | 64421068 | 116247 | 100.00 | 26063812 | 599656 | 599656 |  |
|  | WAVETEK MICROELECTRONICS CORPORATION | Hsinchu County, Taiwan | Sales and manufacturing of integrated circuits |  | 1903741 |  | 1903741 | 148112 | 78.65 | 417114 | (621849) | (490277) |  |
|  | MTIC HOLDINGS PTE. LTD. | Singapore | Investment holding | SGD | 12000 | SGD | 12000 | 12000 | 45.44 | - | (7077) | - |  |
|  | UNITECH CAPITAL INC. | British Virgin Islands | Investment holding | USD | 21000 | USD | 21000 | 21000 | 42.00 | 566295 | 119697 | 50273 |  |
|  | TRIKNIGHT CAPITAL CORPORATION | Taipei City, Taiwan | Investment holding |  | 943148 |  | 1109500 | 131534 | 40.00 | 862339 | (509433) | (203773) |  |
|  | HSUN CHIEH INVESTMENT CO., LTD. | Taipei City, Taiwan | Investment holding |  | 307448 |  | 317045 | 1098863 | 36.49 | 12200237 | 2361665 | 861724 |  |
|  | YANN YUAN INVESTMENT CO., LTD. | Taipei City, Taiwan | Investment holding |  | 2300000 |  | 2300000 | 234600 | 26.78 | 11247379 | 1050722 | 281334 |  |
|  | SILICON INTEGRATED SYSTEMS CORP. | Hsinchu City, Taiwan | Research, manufacturing and sales of integrated circuits |  | 3527742 |  | 3527742 | 92648 | 17.99 | 3378448 | 751052 | 130440 |  |
|  | FARADAY TECHNOLOGY CORPORATION | Hsinchu City, Taiwan | Design of application-specific integrated circuit |  | 572891 |  | 572891 | 35963 | 13.80 | 2437201 | 523785 | 71501 |  |
|  | UNIMICRON TECHNOLOGY CORP. | Taoyuan City, Taiwan | Manufacturing of PCB |  | 2775835 |  | 2775835 | 198878 | 13.01 | 13592545 | 3138640 | 296983 |  |

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| | | | | | | | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| ATTACHMENT 7 (Names, locations and related information of investee companies as of September 30, 2025) (Not including investment in Mainland China) | ATTACHMENT 7 (Names, locations and related information of investee companies as of September 30, 2025) (Not including investment in Mainland China) | ATTACHMENT 7 (Names, locations and related information of investee companies as of September 30, 2025) (Not including investment in Mainland China) | ATTACHMENT 7 (Names, locations and related information of investee companies as of September 30, 2025) (Not including investment in Mainland China) | ATTACHMENT 7 (Names, locations and related information of investee companies as of September 30, 2025) (Not including investment in Mainland China) | ATTACHMENT 7 (Names, locations and related information of investee companies as of September 30, 2025) (Not including investment in Mainland China) | ATTACHMENT 7 (Names, locations and related information of investee companies as of September 30, 2025) (Not including investment in Mainland China) | ATTACHMENT 7 (Names, locations and related information of investee companies as of September 30, 2025) (Not including investment in Mainland China) | ATTACHMENT 7 (Names, locations and related information of investee companies as of September 30, 2025) (Not including investment in Mainland China) | ATTACHMENT 7 (Names, locations and related information of investee companies as of September 30, 2025) (Not including investment in Mainland China) | ATTACHMENT 7 (Names, locations and related information of investee companies as of September 30, 2025) (Not including investment in Mainland China) | ATTACHMENT 7 (Names, locations and related information of investee companies as of September 30, 2025) (Not including investment in Mainland China) | ATTACHMENT 7 (Names, locations and related information of investee companies as of September 30, 2025) (Not including investment in Mainland China) | ATTACHMENT 7 (Names, locations and related information of investee companies as of September 30, 2025) (Not including investment in Mainland China) | ATTACHMENT 7 (Names, locations and related information of investee companies as of September 30, 2025) (Not including investment in Mainland China) | ATTACHMENT 7 (Names, locations and related information of investee companies as of September 30, 2025) (Not including investment in Mainland China) | ATTACHMENT 7 (Names, locations and related information of investee companies as of September 30, 2025) (Not including investment in Mainland China) |
| (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) |
|  |  |  |  | Initial Investment | Initial Investment | Initial Investment | Initial Investment | Investment as of September 30, 2025 | Investment as of September 30, 2025 | Investment as of September 30, 2025 | Investment as of September 30, 2025 |  |  |  |  |  |
| Investor Company | Investee company | Address | Main businesses and products | Ending balance | Ending balance | Beginning balance | Beginning balance | Number of shares (thousand) | Percentage of ownership<br>(%) | Carrying amount | Carrying amount | Net income (loss) of investee company | Net income (loss) of investee company | Investment income (loss) recognized | Investment income (loss) recognized | Note |
| FORTUNE VENTURE CAPITAL CORP. | TERA ENERGY DEVELOPMENT CO., LTD. | Hsinchu City, Taiwan | Energy Technical Services |  | $100752 |  | $100752 | 10858 | 92.64 |  | $142479 |  | $22916 |  | $21186 |  |
|  | PURIUMFIL INC. | Hsinchu City, Taiwan | Chemicals and filtration products & Microcontamination control service |  | 10000 |  | 10000 | 1000 | 40.00 |  | 9144 |  | (4068) |  | (1627) |  |
|  | UNITED LED CORPORATION HONG KONG LIMITED | Hongkong | Investment holding | USD | 22500 | USD | 22500 | 22500 | 25.14 |  | 117555 |  | 82881 |  | 20836 |  |
|  | WAVETEK MICROELECTRONICS CORPORATION | Hsinchu County, Taiwan | Sales and manufacturing of integrated circuits |  | 8856 |  | 8856 | 1194 | 0.63 |  | 3935 |  | (621849) |  | (3951) |  |
| TLC CAPITAL CO., LTD. | SOARING CAPITAL CORP. | Samoa | Investment holding | USD | 900 | USD | 900 | 900 | 100.00 |  | 13283 |  | 705 |  | 705 |  |
|  | HSUN CHIEH CAPITAL CORP. | Samoa | Investment holding | USD | 8000 | USD | 8000 | 8000 | 40.00 |  | 245969 |  | (7633) |  | (3053) |  |
|  | VSENSE CO., LTD. | Taipei City, Taiwan | Medical devices, measuring equipment, reagents and consumables |  | - |  | 95916 | - | - |  | - |  | (6927) |  | - | Note 1 |
| UMC CAPITAL CORP. | TRANSLINK CAPITAL PARTNERS I, L.P. | Cayman Islands | Investment holding | USD | - | USD | 3473 | - | - | USD | - | USD | (6122) | USD | (509) | Note 2 |
| TERA ENERGY DEVELOPMENT CO., LTD. | EVERRICH ENERGY INVESTMENT (HK) LIMITED | Hongkong | Investment holding | USD | 460 | USD | 460 | 460 | 100.00 |  | 20457 |  | 2423 |  | 2423 |  |
| WAVETEK MICROELECTRONICS CORPORATION | WAVETEK MICROELECTRONICS CORPORATION (USA) | USA | Marketing service | USD | 60 | USD | 60 | 60 | 100.00 |  | 2836 |  | (33) |  | (33) |  |
| BEST ELITE INTERNATIONAL LIMITED | INFOSHINE TECHNOLOGY LIMITED | British Virgin Islands | Investment holding | USD | 354000 | USD | 354000 | - | 100.00 |  | 42414660 |  | 4948816 |  | 4948816 |  |
| INFOSHINE TECHNOLOGY LIMITED | OAKWOOD ASSOCIATES LIMITED | British Virgin Islands | Investment holding | USD | 354000 | USD | 354000 | - | 100.00 |  | 42414660 |  | 4948816 |  | 4948816 |  |
| OMNI GLOBAL LIMITED | UNITED MICROTECHNOLOGY CORPORATION (CALIFORNIA) | USA | Research & Development | USD | 1000 | USD | 1000 | 0 | 100.00 |  | 49985 |  | 3850 |  | 3850 |  |
|  | ECP VITA PTE. LTD. | Singapore | Insurance | USD | 9000 | USD | 9000 | 9000 | 100.00 |  | 654065 |  | (106773) |  | (106773) |  |
| GREEN EARTH LIMITED | UNITED MICROCHIP CORPORATION | Cayman Islands | Investment holding | USD | 1546050 | USD | 1546050 | 1546050 | 100.00 |  | 30947735 |  | 4357293 |  | 4357293 |  |
| Note 1: VSENSE has ceased operations. The Company's subsidiary no longer participates in the financial and operating policy decisions of the investee, therefore losing significant influence over it. Accordingly, the investment was discontinued from being accounted for under the equity method and was reclassified as a financial asset at fair value through profit or loss. | Note 1: VSENSE has ceased operations. The Company's subsidiary no longer participates in the financial and operating policy decisions of the investee, therefore losing significant influence over it. Accordingly, the investment was discontinued from being accounted for under the equity method and was reclassified as a financial asset at fair value through profit or loss. | Note 1: VSENSE has ceased operations. The Company's subsidiary no longer participates in the financial and operating policy decisions of the investee, therefore losing significant influence over it. Accordingly, the investment was discontinued from being accounted for under the equity method and was reclassified as a financial asset at fair value through profit or loss. | Note 1: VSENSE has ceased operations. The Company's subsidiary no longer participates in the financial and operating policy decisions of the investee, therefore losing significant influence over it. Accordingly, the investment was discontinued from being accounted for under the equity method and was reclassified as a financial asset at fair value through profit or loss. | Note 1: VSENSE has ceased operations. The Company's subsidiary no longer participates in the financial and operating policy decisions of the investee, therefore losing significant influence over it. Accordingly, the investment was discontinued from being accounted for under the equity method and was reclassified as a financial asset at fair value through profit or loss. | Note 1: VSENSE has ceased operations. The Company's subsidiary no longer participates in the financial and operating policy decisions of the investee, therefore losing significant influence over it. Accordingly, the investment was discontinued from being accounted for under the equity method and was reclassified as a financial asset at fair value through profit or loss. | Note 1: VSENSE has ceased operations. The Company's subsidiary no longer participates in the financial and operating policy decisions of the investee, therefore losing significant influence over it. Accordingly, the investment was discontinued from being accounted for under the equity method and was reclassified as a financial asset at fair value through profit or loss. | Note 1: VSENSE has ceased operations. The Company's subsidiary no longer participates in the financial and operating policy decisions of the investee, therefore losing significant influence over it. Accordingly, the investment was discontinued from being accounted for under the equity method and was reclassified as a financial asset at fair value through profit or loss. | Note 1: VSENSE has ceased operations. The Company's subsidiary no longer participates in the financial and operating policy decisions of the investee, therefore losing significant influence over it. Accordingly, the investment was discontinued from being accounted for under the equity method and was reclassified as a financial asset at fair value through profit or loss. | Note 1: VSENSE has ceased operations. The Company's subsidiary no longer participates in the financial and operating policy decisions of the investee, therefore losing significant influence over it. Accordingly, the investment was discontinued from being accounted for under the equity method and was reclassified as a financial asset at fair value through profit or loss. | Note 1: VSENSE has ceased operations. The Company's subsidiary no longer participates in the financial and operating policy decisions of the investee, therefore losing significant influence over it. Accordingly, the investment was discontinued from being accounted for under the equity method and was reclassified as a financial asset at fair value through profit or loss. | Note 1: VSENSE has ceased operations. The Company's subsidiary no longer participates in the financial and operating policy decisions of the investee, therefore losing significant influence over it. Accordingly, the investment was discontinued from being accounted for under the equity method and was reclassified as a financial asset at fair value through profit or loss. | Note 1: VSENSE has ceased operations. The Company's subsidiary no longer participates in the financial and operating policy decisions of the investee, therefore losing significant influence over it. Accordingly, the investment was discontinued from being accounted for under the equity method and was reclassified as a financial asset at fair value through profit or loss. | Note 1: VSENSE has ceased operations. The Company's subsidiary no longer participates in the financial and operating policy decisions of the investee, therefore losing significant influence over it. Accordingly, the investment was discontinued from being accounted for under the equity method and was reclassified as a financial asset at fair value through profit or loss. | Note 1: VSENSE has ceased operations. The Company's subsidiary no longer participates in the financial and operating policy decisions of the investee, therefore losing significant influence over it. Accordingly, the investment was discontinued from being accounted for under the equity method and was reclassified as a financial asset at fair value through profit or loss. | Note 1: VSENSE has ceased operations. The Company's subsidiary no longer participates in the financial and operating policy decisions of the investee, therefore losing significant influence over it. Accordingly, the investment was discontinued from being accounted for under the equity method and was reclassified as a financial asset at fair value through profit or loss. | Note 1: VSENSE has ceased operations. The Company's subsidiary no longer participates in the financial and operating policy decisions of the investee, therefore losing significant influence over it. Accordingly, the investment was discontinued from being accounted for under the equity method and was reclassified as a financial asset at fair value through profit or loss. |
| Note 2: TRANSLINK CAPITAL PARTNERS I, L.P. was dissolved in April 2025. | Note 2: TRANSLINK CAPITAL PARTNERS I, L.P. was dissolved in April 2025. | Note 2: TRANSLINK CAPITAL PARTNERS I, L.P. was dissolved in April 2025. | Note 2: TRANSLINK CAPITAL PARTNERS I, L.P. was dissolved in April 2025. | Note 2: TRANSLINK CAPITAL PARTNERS I, L.P. was dissolved in April 2025. | Note 2: TRANSLINK CAPITAL PARTNERS I, L.P. was dissolved in April 2025. | Note 2: TRANSLINK CAPITAL PARTNERS I, L.P. was dissolved in April 2025. | Note 2: TRANSLINK CAPITAL PARTNERS I, L.P. was dissolved in April 2025. | Note 2: TRANSLINK CAPITAL PARTNERS I, L.P. was dissolved in April 2025. | Note 2: TRANSLINK CAPITAL PARTNERS I, L.P. was dissolved in April 2025. | Note 2: TRANSLINK CAPITAL PARTNERS I, L.P. was dissolved in April 2025. | Note 2: TRANSLINK CAPITAL PARTNERS I, L.P. was dissolved in April 2025. | Note 2: TRANSLINK CAPITAL PARTNERS I, L.P. was dissolved in April 2025. | Note 2: TRANSLINK CAPITAL PARTNERS I, L.P. was dissolved in April 2025. | Note 2: TRANSLINK CAPITAL PARTNERS I, L.P. was dissolved in April 2025. | Note 2: TRANSLINK CAPITAL PARTNERS I, L.P. was dissolved in April 2025. | Note 2: TRANSLINK CAPITAL PARTNERS I, L.P. was dissolved in April 2025. |

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| ATTACHMENT 8 (Investment in Mainland China as of September 30, 2025) | ATTACHMENT 8 (Investment in Mainland China as of September 30, 2025) | ATTACHMENT 8 (Investment in Mainland China as of September 30, 2025) | ATTACHMENT 8 (Investment in Mainland China as of September 30, 2025) | ATTACHMENT 8 (Investment in Mainland China as of September 30, 2025) | ATTACHMENT 8 (Investment in Mainland China as of September 30, 2025) | ATTACHMENT 8 (Investment in Mainland China as of September 30, 2025) | ATTACHMENT 8 (Investment in Mainland China as of September 30, 2025) | ATTACHMENT 8 (Investment in Mainland China as of September 30, 2025) | ATTACHMENT 8 (Investment in Mainland China as of September 30, 2025) | ATTACHMENT 8 (Investment in Mainland China as of September 30, 2025) | ATTACHMENT 8 (Investment in Mainland China as of September 30, 2025) |
| (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) | (Amount in thousand, Currency denomination in NTD or in foreign currencies) |
|  |  |  |  |  | Investment flows |  |  |  |  |  |  |
| Investee company | Main businesses and products | Total amount of<br>paid-in capital | Method of investment<br>(Note 1) | Accumulated<br>outflow of<br>investment from<br>Taiwan as of <br>January 1, 2025 | Outflow | Accumulated outflow of investment from Taiwan as of <br>September 30, 2025 | Net income (loss) of investee company | Percentage of ownership | Investment income (loss) recognized<br>(Note 2) | Carrying amount <br>as of <br>September 30, 2025 | Accumulated inward remittance of earnings as of <br>September 30, 2025 |
| UNITRUTH ADVISOR (SHANGHAI) CO., LTD. | Investment Holding and advisory | $24,336<br>(USD 800) | (ii)SOARING CAPITAL CORP. | $24,336<br>(USD 800) | $- | $24,336<br>(USD 800) | $708 | 100.00% | $708<br>(iii) | $13244 | $- |
| EVERRICH (JINING) NEW ENERGY TECHNOLOGY CO., LTD. (formerly EVERRICH (SHANDONG) ENERGY CO., LTD.) | Solar engineering integrated design services | 13,719<br>(USD 451) | (ii)EVERRICH ENERGY INVESTMENT (HK) LIMITED | 13,993<br>(USD 460) | - | 13,993<br>(USD 460) | 2493 | 100.00% | 2,493<br>(iii) | 20142 | 153,956<br>(USD 5,061) |
| UNITED LED CORPORATION | Research, manufacturing and sales in LED epitaxial wafers | 2,555,280<br>(USD 84,000) | (ii)UNITED LED CORPORATION HONG KONG LIMITED | 616,005<br>(USD 20,250) | - | 616,005<br>(USD 20,250) | 82,122<br>(RMB 19,332) | 25.14% | 20,645<br>(RMB 4,860)<br>(iii) | 114,118<br>(RMB 26,864) | - |
| HEJIAN TECHNOLOGY (SUZHOU) CO., LTD. | Sales and manufacturing of integrated circuits | 13,361,005<br>(RMB 3,145,246) | (ii)OAKWOOD ASSOCIATES LIMITED | 9,402,883<br>(USD 309,102) | - | 9,402,883<br>(USD 309,102) | 4,914,443<br>(RMB 1,156,884) | 100.00%<br>(Note 4) | 4,914,443<br>(RMB 1,156,884)<br>(ii) | 41,528,588<br>(RMB 9,776,033) | - |
| UNITED SEMICONDUCTOR (XIAMEN) CO., LTD. | Sales and manufacturing of integrated circuits | 68,808,229<br>(RMB 16,197,794) | (ii)UNITED MICROCHIP CORPORATION and (iii)HEJIAN TECHNOLOGY (SUZHOU) CO., LTD. | 46,701,210<br>(USD 1,535,214)<br>(Note 5) | - | 46,701,210<br>(USD 1,535,214)<br>(Note 5) | 6,850,372<br>(RMB 1,612,611) | 100.00% | 6,850,372<br>(RMB 1,612,611)<br>(ii) | 48,802,596<br>(RMB 11,488,370) | - |
| Accumulated investment in Mainland China as of <br>September 30, 2025 | Accumulated investment in Mainland China as of <br>September 30, 2025 | Investment amounts authorized by Investment Commission, MOEA | Investment amounts authorized by Investment Commission, MOEA | Upper limit on investment | Upper limit on investment |  |  |  |  |  |  |
| $56,758,427<br>(USD 1,865,826) | $56,758,427<br>(USD 1,865,826) | $85,705,065<br>(USD 2,817,392) | $85,705,065<br>(USD 2,817,392) | $216636131 | $216636131 |  |  |  |  |  |  |
| Note 1 : The methods for engaging in investment in Mainland China include the following: | Note 1 : The methods for engaging in investment in Mainland China include the following: | Note 1 : The methods for engaging in investment in Mainland China include the following: | Note 1 : The methods for engaging in investment in Mainland China include the following: | Note 1 : The methods for engaging in investment in Mainland China include the following: | Note 1 : The methods for engaging in investment in Mainland China include the following: | Note 1 : The methods for engaging in investment in Mainland China include the following: | Note 1 : The methods for engaging in investment in Mainland China include the following: | Note 1 : The methods for engaging in investment in Mainland China include the following: | Note 1 : The methods for engaging in investment in Mainland China include the following: | Note 1 : The methods for engaging in investment in Mainland China include the following: | Note 1 : The methods for engaging in investment in Mainland China include the following: |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (i) Direct investment in Mainland China. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (i) Direct investment in Mainland China. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (i) Direct investment in Mainland China. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (i) Direct investment in Mainland China. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (i) Direct investment in Mainland China. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (i) Direct investment in Mainland China. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (i) Direct investment in Mainland China. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (i) Direct investment in Mainland China. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (i) Direct investment in Mainland China. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (i) Direct investment in Mainland China. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (i) Direct investment in Mainland China. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (i) Direct investment in Mainland China. |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (ii) Indirectly investment in Mainland China through companies registered in a third region (Please specify the name of the company in third region). | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (ii) Indirectly investment in Mainland China through companies registered in a third region (Please specify the name of the company in third region). | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (ii) Indirectly investment in Mainland China through companies registered in a third region (Please specify the name of the company in third region). | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (ii) Indirectly investment in Mainland China through companies registered in a third region (Please specify the name of the company in third region). | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (ii) Indirectly investment in Mainland China through companies registered in a third region (Please specify the name of the company in third region). | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (ii) Indirectly investment in Mainland China through companies registered in a third region (Please specify the name of the company in third region). | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (ii) Indirectly investment in Mainland China through companies registered in a third region (Please specify the name of the company in third region). | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (ii) Indirectly investment in Mainland China through companies registered in a third region (Please specify the name of the company in third region). | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (ii) Indirectly investment in Mainland China through companies registered in a third region (Please specify the name of the company in third region). | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (ii) Indirectly investment in Mainland China through companies registered in a third region (Please specify the name of the company in third region). | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (ii) Indirectly investment in Mainland China through companies registered in a third region (Please specify the name of the company in third region). | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (ii) Indirectly investment in Mainland China through companies registered in a third region (Please specify the name of the company in third region). |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (iii) Other methods. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (iii) Other methods. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (iii) Other methods. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (iii) Other methods. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (iii) Other methods. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (iii) Other methods. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (iii) Other methods. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (iii) Other methods. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (iii) Other methods. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (iii) Other methods. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (iii) Other methods. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (iii) Other methods. |
| Note 2 : The investment income (loss) recognized in current period, the investment income (loss) were determined based on the following basis: | Note 2 : The investment income (loss) recognized in current period, the investment income (loss) were determined based on the following basis: | Note 2 : The investment income (loss) recognized in current period, the investment income (loss) were determined based on the following basis: | Note 2 : The investment income (loss) recognized in current period, the investment income (loss) were determined based on the following basis: | Note 2 : The investment income (loss) recognized in current period, the investment income (loss) were determined based on the following basis: | Note 2 : The investment income (loss) recognized in current period, the investment income (loss) were determined based on the following basis: | Note 2 : The investment income (loss) recognized in current period, the investment income (loss) were determined based on the following basis: | Note 2 : The investment income (loss) recognized in current period, the investment income (loss) were determined based on the following basis: | Note 2 : The investment income (loss) recognized in current period, the investment income (loss) were determined based on the following basis: | Note 2 : The investment income (loss) recognized in current period, the investment income (loss) were determined based on the following basis: | Note 2 : The investment income (loss) recognized in current period, the investment income (loss) were determined based on the following basis: | Note 2 : The investment income (loss) recognized in current period, the investment income (loss) were determined based on the following basis: |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (i) The financial statements were reviewed by an international certified public accounting firm in cooperation with an R.O.C. accounting firm. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (i) The financial statements were reviewed by an international certified public accounting firm in cooperation with an R.O.C. accounting firm. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (i) The financial statements were reviewed by an international certified public accounting firm in cooperation with an R.O.C. accounting firm. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (i) The financial statements were reviewed by an international certified public accounting firm in cooperation with an R.O.C. accounting firm. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (i) The financial statements were reviewed by an international certified public accounting firm in cooperation with an R.O.C. accounting firm. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (i) The financial statements were reviewed by an international certified public accounting firm in cooperation with an R.O.C. accounting firm. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (i) The financial statements were reviewed by an international certified public accounting firm in cooperation with an R.O.C. accounting firm. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (i) The financial statements were reviewed by an international certified public accounting firm in cooperation with an R.O.C. accounting firm. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (i) The financial statements were reviewed by an international certified public accounting firm in cooperation with an R.O.C. accounting firm. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (i) The financial statements were reviewed by an international certified public accounting firm in cooperation with an R.O.C. accounting firm. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (i) The financial statements were reviewed by an international certified public accounting firm in cooperation with an R.O.C. accounting firm. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (i) The financial statements were reviewed by an international certified public accounting firm in cooperation with an R.O.C. accounting firm. |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (ii) The financial statements were reviewed by the auditors of the parent company. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (ii) The financial statements were reviewed by the auditors of the parent company. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (ii) The financial statements were reviewed by the auditors of the parent company. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (ii) The financial statements were reviewed by the auditors of the parent company. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (ii) The financial statements were reviewed by the auditors of the parent company. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (ii) The financial statements were reviewed by the auditors of the parent company. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (ii) The financial statements were reviewed by the auditors of the parent company. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (ii) The financial statements were reviewed by the auditors of the parent company. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (ii) The financial statements were reviewed by the auditors of the parent company. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (ii) The financial statements were reviewed by the auditors of the parent company. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (ii) The financial statements were reviewed by the auditors of the parent company. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (ii) The financial statements were reviewed by the auditors of the parent company. |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (iii) Others. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (iii) Others. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (iii) Others. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (iii) Others. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (iii) Others. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (iii) Others. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (iii) Others. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (iii) Others. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (iii) Others. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (iii) Others. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (iii) Others. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (iii) Others. |
| Note 3 : Initial investment amounts denominated in foreign currencies are translated into New Taiwan Dollars using the spot rates at the financial report date. | Note 3 : Initial investment amounts denominated in foreign currencies are translated into New Taiwan Dollars using the spot rates at the financial report date. | Note 3 : Initial investment amounts denominated in foreign currencies are translated into New Taiwan Dollars using the spot rates at the financial report date. | Note 3 : Initial investment amounts denominated in foreign currencies are translated into New Taiwan Dollars using the spot rates at the financial report date. | Note 3 : Initial investment amounts denominated in foreign currencies are translated into New Taiwan Dollars using the spot rates at the financial report date. | Note 3 : Initial investment amounts denominated in foreign currencies are translated into New Taiwan Dollars using the spot rates at the financial report date. | Note 3 : Initial investment amounts denominated in foreign currencies are translated into New Taiwan Dollars using the spot rates at the financial report date. | Note 3 : Initial investment amounts denominated in foreign currencies are translated into New Taiwan Dollars using the spot rates at the financial report date. | Note 3 : Initial investment amounts denominated in foreign currencies are translated into New Taiwan Dollars using the spot rates at the financial report date. | Note 3 : Initial investment amounts denominated in foreign currencies are translated into New Taiwan Dollars using the spot rates at the financial report date. | Note 3 : Initial investment amounts denominated in foreign currencies are translated into New Taiwan Dollars using the spot rates at the financial report date. | Note 3 : Initial investment amounts denominated in foreign currencies are translated into New Taiwan Dollars using the spot rates at the financial report date. |
| Note 4 : The Company indirectly invested in HEJIAN TECHNOLOGY (SUZHOU) CO., LTD. via investment in BEST ELITE INTERNATIONAL LIMITED, an equity investee. The investment has been approved by the Investment Commission, MOEA | Note 4 : The Company indirectly invested in HEJIAN TECHNOLOGY (SUZHOU) CO., LTD. via investment in BEST ELITE INTERNATIONAL LIMITED, an equity investee. The investment has been approved by the Investment Commission, MOEA | Note 4 : The Company indirectly invested in HEJIAN TECHNOLOGY (SUZHOU) CO., LTD. via investment in BEST ELITE INTERNATIONAL LIMITED, an equity investee. The investment has been approved by the Investment Commission, MOEA | Note 4 : The Company indirectly invested in HEJIAN TECHNOLOGY (SUZHOU) CO., LTD. via investment in BEST ELITE INTERNATIONAL LIMITED, an equity investee. The investment has been approved by the Investment Commission, MOEA | Note 4 : The Company indirectly invested in HEJIAN TECHNOLOGY (SUZHOU) CO., LTD. via investment in BEST ELITE INTERNATIONAL LIMITED, an equity investee. The investment has been approved by the Investment Commission, MOEA | Note 4 : The Company indirectly invested in HEJIAN TECHNOLOGY (SUZHOU) CO., LTD. via investment in BEST ELITE INTERNATIONAL LIMITED, an equity investee. The investment has been approved by the Investment Commission, MOEA | Note 4 : The Company indirectly invested in HEJIAN TECHNOLOGY (SUZHOU) CO., LTD. via investment in BEST ELITE INTERNATIONAL LIMITED, an equity investee. The investment has been approved by the Investment Commission, MOEA | Note 4 : The Company indirectly invested in HEJIAN TECHNOLOGY (SUZHOU) CO., LTD. via investment in BEST ELITE INTERNATIONAL LIMITED, an equity investee. The investment has been approved by the Investment Commission, MOEA | Note 4 : The Company indirectly invested in HEJIAN TECHNOLOGY (SUZHOU) CO., LTD. via investment in BEST ELITE INTERNATIONAL LIMITED, an equity investee. The investment has been approved by the Investment Commission, MOEA | Note 4 : The Company indirectly invested in HEJIAN TECHNOLOGY (SUZHOU) CO., LTD. via investment in BEST ELITE INTERNATIONAL LIMITED, an equity investee. The investment has been approved by the Investment Commission, MOEA | Note 4 : The Company indirectly invested in HEJIAN TECHNOLOGY (SUZHOU) CO., LTD. via investment in BEST ELITE INTERNATIONAL LIMITED, an equity investee. The investment has been approved by the Investment Commission, MOEA | Note 4 : The Company indirectly invested in HEJIAN TECHNOLOGY (SUZHOU) CO., LTD. via investment in BEST ELITE INTERNATIONAL LIMITED, an equity investee. The investment has been approved by the Investment Commission, MOEA |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; in the total amount of USD 383,569 thousand. As of September 30, 2025, the amount of investment has been all remitted. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; in the total amount of USD 383,569 thousand. As of September 30, 2025, the amount of investment has been all remitted. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; in the total amount of USD 383,569 thousand. As of September 30, 2025, the amount of investment has been all remitted. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; in the total amount of USD 383,569 thousand. As of September 30, 2025, the amount of investment has been all remitted. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; in the total amount of USD 383,569 thousand. As of September 30, 2025, the amount of investment has been all remitted. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; in the total amount of USD 383,569 thousand. As of September 30, 2025, the amount of investment has been all remitted. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; in the total amount of USD 383,569 thousand. As of September 30, 2025, the amount of investment has been all remitted. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; in the total amount of USD 383,569 thousand. As of September 30, 2025, the amount of investment has been all remitted. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; in the total amount of USD 383,569 thousand. As of September 30, 2025, the amount of investment has been all remitted. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; in the total amount of USD 383,569 thousand. As of September 30, 2025, the amount of investment has been all remitted. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; in the total amount of USD 383,569 thousand. As of September 30, 2025, the amount of investment has been all remitted. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; in the total amount of USD 383,569 thousand. As of September 30, 2025, the amount of investment has been all remitted. |
| Note 5 : The investment to UNITED SEMICONDUCTOR (XIAMEN) CO., LTD. (USCXM) from HEJIAN TECHNOLOGY (SUZHOU) CO., LTD. and indirectly invested in USCXM via investment in GREEN EARTH LIMITED. | Note 5 : The investment to UNITED SEMICONDUCTOR (XIAMEN) CO., LTD. (USCXM) from HEJIAN TECHNOLOGY (SUZHOU) CO., LTD. and indirectly invested in USCXM via investment in GREEN EARTH LIMITED. | Note 5 : The investment to UNITED SEMICONDUCTOR (XIAMEN) CO., LTD. (USCXM) from HEJIAN TECHNOLOGY (SUZHOU) CO., LTD. and indirectly invested in USCXM via investment in GREEN EARTH LIMITED. | Note 5 : The investment to UNITED SEMICONDUCTOR (XIAMEN) CO., LTD. (USCXM) from HEJIAN TECHNOLOGY (SUZHOU) CO., LTD. and indirectly invested in USCXM via investment in GREEN EARTH LIMITED. | Note 5 : The investment to UNITED SEMICONDUCTOR (XIAMEN) CO., LTD. (USCXM) from HEJIAN TECHNOLOGY (SUZHOU) CO., LTD. and indirectly invested in USCXM via investment in GREEN EARTH LIMITED. | Note 5 : The investment to UNITED SEMICONDUCTOR (XIAMEN) CO., LTD. (USCXM) from HEJIAN TECHNOLOGY (SUZHOU) CO., LTD. and indirectly invested in USCXM via investment in GREEN EARTH LIMITED. | Note 5 : The investment to UNITED SEMICONDUCTOR (XIAMEN) CO., LTD. (USCXM) from HEJIAN TECHNOLOGY (SUZHOU) CO., LTD. and indirectly invested in USCXM via investment in GREEN EARTH LIMITED. | Note 5 : The investment to UNITED SEMICONDUCTOR (XIAMEN) CO., LTD. (USCXM) from HEJIAN TECHNOLOGY (SUZHOU) CO., LTD. and indirectly invested in USCXM via investment in GREEN EARTH LIMITED. | Note 5 : The investment to UNITED SEMICONDUCTOR (XIAMEN) CO., LTD. (USCXM) from HEJIAN TECHNOLOGY (SUZHOU) CO., LTD. and indirectly invested in USCXM via investment in GREEN EARTH LIMITED. | Note 5 : The investment to UNITED SEMICONDUCTOR (XIAMEN) CO., LTD. (USCXM) from HEJIAN TECHNOLOGY (SUZHOU) CO., LTD. and indirectly invested in USCXM via investment in GREEN EARTH LIMITED. | Note 5 : The investment to UNITED SEMICONDUCTOR (XIAMEN) CO., LTD. (USCXM) from HEJIAN TECHNOLOGY (SUZHOU) CO., LTD. and indirectly invested in USCXM via investment in GREEN EARTH LIMITED. | Note 5 : The investment to UNITED SEMICONDUCTOR (XIAMEN) CO., LTD. (USCXM) from HEJIAN TECHNOLOGY (SUZHOU) CO., LTD. and indirectly invested in USCXM via investment in GREEN EARTH LIMITED. |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The consent to invest in USCXM's investment has been approved by the Investment Commission, MOEA in the total amount of USD 2,412,313 thousand. As of September 30, 2025, the amount of investment has been all remitted. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The consent to invest in USCXM's investment has been approved by the Investment Commission, MOEA in the total amount of USD 2,412,313 thousand. As of September 30, 2025, the amount of investment has been all remitted. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The consent to invest in USCXM's investment has been approved by the Investment Commission, MOEA in the total amount of USD 2,412,313 thousand. As of September 30, 2025, the amount of investment has been all remitted. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The consent to invest in USCXM's investment has been approved by the Investment Commission, MOEA in the total amount of USD 2,412,313 thousand. As of September 30, 2025, the amount of investment has been all remitted. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The consent to invest in USCXM's investment has been approved by the Investment Commission, MOEA in the total amount of USD 2,412,313 thousand. As of September 30, 2025, the amount of investment has been all remitted. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The consent to invest in USCXM's investment has been approved by the Investment Commission, MOEA in the total amount of USD 2,412,313 thousand. As of September 30, 2025, the amount of investment has been all remitted. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The consent to invest in USCXM's investment has been approved by the Investment Commission, MOEA in the total amount of USD 2,412,313 thousand. As of September 30, 2025, the amount of investment has been all remitted. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The consent to invest in USCXM's investment has been approved by the Investment Commission, MOEA in the total amount of USD 2,412,313 thousand. As of September 30, 2025, the amount of investment has been all remitted. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The consent to invest in USCXM's investment has been approved by the Investment Commission, MOEA in the total amount of USD 2,412,313 thousand. As of September 30, 2025, the amount of investment has been all remitted. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The consent to invest in USCXM's investment has been approved by the Investment Commission, MOEA in the total amount of USD 2,412,313 thousand. As of September 30, 2025, the amount of investment has been all remitted. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The consent to invest in USCXM's investment has been approved by the Investment Commission, MOEA in the total amount of USD 2,412,313 thousand. As of September 30, 2025, the amount of investment has been all remitted. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The consent to invest in USCXM's investment has been approved by the Investment Commission, MOEA in the total amount of USD 2,412,313 thousand. As of September 30, 2025, the amount of investment has been all remitted. |

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