UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549





FORM 20-F/A

(Amendment No. 1)





(Mark One)

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

or



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

For the fiscal year endedDecember 31, 2007

or



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

For the transition period from              to

or



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

Date of event requiring this shell company report

Commission file number 001-33295





3SBio Inc.

(Exact Name of Registrant as Specified in Its Charter)





Cayman Islands

(Jurisdiction of Incorporation or Organization)

No. 3 A1, Road 10

Shenyang Economy & Technology Development Zone

Shenyang 110027

Peoples
Republic of China

(Address of Principal Executive Offices)





Bo Tan, Chief Financial officer

No. 3 A1, Road 10

Shenyang Economy & Technology Development Zone

Shenyang 110027

Peoples Republic of China

Telephone (China): 86.24.2581.1820

Email: tanbo@3sbio.com

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







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



|                                                                                                   |  |                                          
|-------------------------------------------------------------------------------------------------- |  | -----------------------------------------
|Title of Each Class                                                                                |  | Name of Each Exchange on Which Registered
|American Depositary Shares, each representing seven ordinary shares, par value US$0.0001 per share |  | The NASDAQ Stock Market LLC              

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

None

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

None





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

152,099,155 ordinary shares, par value US$0.0001, as of December 31, 2007

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

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

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

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

Large accelerated filer   ̈    Accelerated filer   ̈    Non-accelerated filer  x*

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

U.S. GAAP  x    International Financial Reporting Standards as issued by the International Accounting Standards Board   ̈    Other   ̈

If Other has been checked in response to the previous questions, indicate by check mark which
financial statement item the registrant has elected to follow.

Item 17   ̈    Item 18   ̈

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



|* | The registrant was a non-accelerated filer with respect to the fiscal year ended December 31, 2007.
|- | ---------------------------------------------------------------------------------------------------









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EXPLANATORY NOTE

3SBio Inc. (the Registrant) filed its Annual Report on Form 20-F for the fiscal year ended December 31, 2007 (the Annual Report) with the Securities and Exchange Commission on
June 27, 2008.

This Amendment No. 1 to the Annual Report (the Amendment) is filed to supplement Item 15T of the Annual Report
to include a managements report on internal control over financial reporting, which was inadvertently omitted from the Annual Report.

This Amendment
consists of a cover page, this explanatory note, Item 15T which is supplemental to Item 15T of the Annual Report, the signature page and the accompanying exhibits, including the required certifications of the principal executive officer
and principal financial officer of the Registrant.

Other than as expressly set forth herein, this Amendment does not, and does not purport to, amend or
restate any other information contained in the Annual Report nor does this Amendment reflect any events that have occurred after the Annual Report was filed.

PART II



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

Report of Management on Internal
Control over Financial Reporting

Our management is responsible for establishing and maintaining adequate internal control over financial reporting, as
defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act, for our company. Our internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of our financial reporting and the
preparation of financial statements for external purposes in accordance with U.S. GAAP. Included in our internal control over financial reporting are policies and procedures that (i) pertain to the maintenance of records that, in reasonable
detail, accurately and fairly reflect the transactions and dispositions of our assets; (ii) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with U.S. GAAP, and
that our receipts and expenditures are being made only in accordance with authorizations from our management and directors; and (iii) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or
disposition of our assets that could have a material effect on our financial statements.

Because of its inherent limitations, a system of internal control
over financial reporting can provide only reasonable assurance with respect to preparation and presentation of financial statements, and may not prevent or detect all misstatements. In addition, projections of any evaluation of effectiveness of our
internal control over financial reporting to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

As required by Section 404 of the Sarbanes-Oxley Act of 2002 and related rules as promulgated by the Securities and Exchange Commission, our management has
assessed the effectiveness of our internal control over financial reporting as of December 31, 2007 based on criteria established in Internal Control-Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway
Commission. Based on this assessment, our management has concluded that our internal control over financial reporting was effective as of December 31, 2007.

This annual report does not include an attestation report of our companys registered public accounting firm regarding internal control over financial reporting. Managements report was not subject to attestation by our
companys registered public accounting firm pursuant to temporary rules of the Securities and Exchange Commission that permit us to provide only managements report in this annual report.

PART III



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



|       |  |                                                                            
|------ |  | ---------------------------------------------------------------------------
|12.3*: |  | CEO Certification Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
|       | 
|12.4*: |  | CFO Certification Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002



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



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SIGNATURES

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



3SBio Inc.By:

/s/ Dr. Jing LouName:

Dr. Jing LouTitle:

Chief Executive OfficerDate:

May 12, 2009




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