UNITED STATES
                     SECURITIES AND EXCHANGE COMMISSION
                           WASHINGTON, D.C. 20549



                                SCHEDULE 13G

                 UNDER THE SECURITIES EXCHANGE ACT OF 1934
                             (AMENDMENT NO. 1)*


                       Solarfun Power Holdings Co., Ltd
--------------------------------------------------------------------------------
                               (Name of Issuer)

               Ordinary Shares, par value US$0.0001 per share
--------------------------------------------------------------------------------
                        (Title of Class of Securities)

                                  83415U108
            --------------------------------------------------------
                                (CUSIP Number)

                              December 31, 2007
--------------------------------------------------------------------------------
            (Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule
is filed:

   / /       Rule 13d-1(b)
   / /       Rule 13d-1(c)
   /X/       Rule 13d-1(d)


*The remainder of this cover page shall be filled out for a reporting
person's initial filing on this form with respect to the subject class of
securities, and for any subsequent amendment containing information which
would alter the disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be
deemed to be "filed" for the purpose of Section 18 of the Securities Exchange
Act of 1934 ("Act") or otherwise subject to the liabilities of that section
of the Act but shall be subject to all other provisions of the Act (however,
see the Notes).


                                       Page 1
                                     of 12 Pages



                                       SCHEDULE 13G

CUSIP NO. 83415U-10-8                                        PAGE 2 OF 12 PAGES


-------------------------------------------------------------------------------
  1. Names of Reporting Persons

     Citigroup Venture Capital International Growth Partnership, L.P.
-------------------------------------------------------------------------------
  2. Check the Appropriate Box if a Member of a Group (SEE INSTRUCTIONS)

                                                                       (a)  / /
                                                                       (b)  / /
-------------------------------------------------------------------------------
  3. SEC Use Only



-------------------------------------------------------------------------------
  4. Citizenship or Place of Organization                        Cayman Islands


-------------------------------------------------------------------------------
       NUMBER OF           5. Sole Voting Power                      21,409,367

        SHARES
                           ----------------------------------------------------
     BENEFICIALLY          6. Shared Voting Power                             0

       OWNED BY
                           ----------------------------------------------------
        EACH               7. Sole Dispositive Power                 21,409,367

      REPORTING
                           ----------------------------------------------------
      PERSON               8. Shared Dispositive Power                        0

       WITH
-------------------------------------------------------------------------------
 9. Aggregate Amount Beneficially Owned by Each Reporting Person     21,409,367



-------------------------------------------------------------------------------
10. Check if the Aggregate Amount in Row (9) Excludes Certain Shares (SEE
    INSTRUCTIONS) / /


-------------------------------------------------------------------------------
11. Percent of Class Represented by Amount in Row (9)                      8.9%



-------------------------------------------------------------------------------
12. Type of Reporting Person                                                 PN



-------------------------------------------------------------------------------




                                       SCHEDULE 13G

CUSIP NO. 83415U-10-8                                        PAGE 3 OF 12 PAGES


-------------------------------------------------------------------------------
  1. Names of Reporting Persons

     Citigroup Venture Capital International Co-Investment, L.P.
-------------------------------------------------------------------------------
  2. Check the Appropriate Box if a Member of a Group (SEE INSTRUCTIONS)

                                                                        (a) / /
                                                                        (b) / /
-------------------------------------------------------------------------------
  3. SEC Use Only



-------------------------------------------------------------------------------
  4. Citizenship or Place of Organization                        Cayman Islands


-------------------------------------------------------------------------------
        NUMBER OF          5. Sole Voting Power                       1,168,309

         SHARES
                           ----------------------------------------------------
     BENEFICIALLY          6. Shared Voting Power                             0

       OWNED BY
                           ----------------------------------------------------
        EACH               7. Sole Dispositive Power                  1,168,309

      REPORTING
                           ----------------------------------------------------
       PERSON              8. Shared Dispositive Power                        0

        WITH
-------------------------------------------------------------------------------
 9. Aggregate Amount Beneficially Owned by Each Reporting Person      1,168,309



-------------------------------------------------------------------------------
10. Check if the Aggregate Amount in Row (9) Excludes Certain Shares (SEE
    INSTRUCTIONS) / /


-------------------------------------------------------------------------------
11. Percent of Class Represented by Amount in Row (9)                      0.5%



-------------------------------------------------------------------------------
12. Type of Reporting Person                                                 PN



-------------------------------------------------------------------------------




                                       SCHEDULE 13G

CUSIP NO. 83415U-10-8                                        PAGE 4 OF 12 PAGES


-------------------------------------------------------------------------------
  1. Names of Reporting Persons

     Citigroup Venture Capital International Partnership G.P Limited
-------------------------------------------------------------------------------
  2. Check the Appropriate Box if a Member of a Group (SEE INSTRUCTIONS)

                                                                        (a) / /
                                                                        (b) / /
-------------------------------------------------------------------------------
  3. SEC Use Only



-------------------------------------------------------------------------------
  4. Citizenship or Place of Organization               Jersey, Channel Islands


-------------------------------------------------------------------------------
       NUMBER OF           5. Sole Voting Power                      22,577,676

        SHARES
                           ----------------------------------------------------
      BENEFICIALLY         6. Shared Voting Power                             0

       OWNED BY
                           ----------------------------------------------------
        EACH               7. Sole Dispositive Power                 22,577,676

      REPORTING
                           ----------------------------------------------------
       PERSON              8. Shared Dispositive Power                        0

        WITH
-------------------------------------------------------------------------------
 9. Aggregate Amount Beneficially Owned by Each Reporting Person     22,577,676



-------------------------------------------------------------------------------
10. Check if the Aggregate Amount in Row (9) Excludes Certain Shares (SEE
    INSTRUCTIONS) / /


-------------------------------------------------------------------------------
11. Percent of Class Represented by Amount in Row (9)                      9.4%



-------------------------------------------------------------------------------
12. Type of Reporting Person                                                 CO



-------------------------------------------------------------------------------




                                       SCHEDULE 13G

CUSIP NO. 83415U-10-8                                        PAGE 5 OF 12 PAGES


-------------------------------------------------------------------------------
  1. Names of Reporting Persons

     Citigroup Venture Capital International Delaware Corporation
-------------------------------------------------------------------------------
  2. Check the Appropriate Box if a Member of a Group (SEE INSTRUCTIONS)

                                                                        (a) / /
                                                                        (b) / /
-------------------------------------------------------------------------------
  3. SEC Use Only



-------------------------------------------------------------------------------
  4. Citizenship or Place of Organization                              Delaware


-------------------------------------------------------------------------------
       NUMBER OF           5. Sole Voting Power                      22,577,676

        SHARES
                           ----------------------------------------------------
     BENEFICIALLY          6. Shared Voting Power                             0

       OWNED BY
                           ----------------------------------------------------
        EACH               7. Sole Dispositive Power                 22,577,676

      REPORTING
                           ----------------------------------------------------
       PERSON              8. Shared Dispositive Power                        0

        WITH
-------------------------------------------------------------------------------
 9. Aggregate Amount Beneficially Owned by Each Reporting Person     22,577,676



-------------------------------------------------------------------------------
10. Check if the Aggregate Amount in Row (9) Excludes Certain Shares (SEE
    INSTRUCTIONS) / /


-------------------------------------------------------------------------------
11. Percent of Class Represented by Amount in Row (9)                      9.4%



-------------------------------------------------------------------------------
12. Type of Reporting Person                                                 CO



-------------------------------------------------------------------------------




CUSIP NO. 83415U-10-8                                        PAGE 6 OF 12 PAGES


-------------------------------------------------------------------------------
  1. Names of Reporting Persons

     Citicorp International Finance Corporation
-------------------------------------------------------------------------------
  2. Check the Appropriate Box if a Member of a Group (SEE INSTRUCTIONS)

                                                                        (a) / /
                                                                        (b) / /
-------------------------------------------------------------------------------
  3. SEC Use Only



-------------------------------------------------------------------------------
  4. Citizenship or Place of Organization                              Delaware


-------------------------------------------------------------------------------
       NUMBER OF           5. Sole Voting Power                      22,577,676

        SHARES
                           ----------------------------------------------------
     BENEFICIALLY          6. Shared Voting Power                             0

       OWNED BY
                           ----------------------------------------------------
        EACH               7. Sole Dispositive Power                 22,577,676

      REPORTING
                           ----------------------------------------------------
       PERSON              8. Shared Dispositive Power                        0

        WITH
-------------------------------------------------------------------------------
 9. Aggregate Amount Beneficially Owned by Each Reporting Person     22,577,676



-------------------------------------------------------------------------------
10. Check if the Aggregate Amount in Row (9) Excludes Certain Shares (SEE
    INSTRUCTIONS) / /



-------------------------------------------------------------------------------
11. Percent of Class Represented by Amount in Row (9)                      9.4%



-------------------------------------------------------------------------------
12. Type of Reporting Person                                                 CO



-------------------------------------------------------------------------------




CUSIP NO. 83415U-10-8                                        PAGE 7 OF 12 PAGES


-------------------------------------------------------------------------------
  1. Names of Reporting Persons

     Citicorp Banking Corporation
-------------------------------------------------------------------------------
  2. Check the Appropriate Box if a Member of a Group (SEE INSTRUCTIONS)

                                                                        (a) / /
                                                                        (b) / /
-------------------------------------------------------------------------------
  3. SEC Use Only



-------------------------------------------------------------------------------
  4. Citizenship or Place of Organization                              Delaware


-------------------------------------------------------------------------------
       NUMBER OF           5. Sole Voting Power                      22,577,676

        SHARES
                           ----------------------------------------------------
     BENEFICIALLY          6. Shared Voting Power                             0

       OWNED BY
                           ----------------------------------------------------
        EACH               7. Sole Dispositive Power                 22,577,676

      REPORTING
                           ----------------------------------------------------
       PERSON              8. Shared Dispositive Power                        0

        WITH
-------------------------------------------------------------------------------
 9. Aggregate Amount Beneficially Owned by Each Reporting Person     22,577,676



-------------------------------------------------------------------------------
10. Check if the Aggregate Amount in Row (9) Excludes Certain Shares (SEE
    INSTRUCTIONS) / /



-------------------------------------------------------------------------------
11. Percent of Class Represented by Amount in Row (9)                      9.4%



-------------------------------------------------------------------------------
12. Type of Reporting Person                                                 CO



-------------------------------------------------------------------------------




CUSIP NO. 83415U-10-8                                        PAGE 8 OF 12 PAGES


-------------------------------------------------------------------------------
  1. Names of Reporting Persons

     Citigroup Inc.
-------------------------------------------------------------------------------
  2. Check the Appropriate Box if a Member of a Group (SEE INSTRUCTIONS)

                                                                        (a) / /
                                                                        (b) / /
-------------------------------------------------------------------------------
  3. SEC Use Only



-------------------------------------------------------------------------------
  4. Citizenship or Place of Organization                              Delaware


-------------------------------------------------------------------------------
       NUMBER OF           5. Sole Voting Power                     22,578,856*

        SHARES
                           ----------------------------------------------------
     BENEFICIALLY          6. Shared Voting Power                             0

       OWNED BY
                           ----------------------------------------------------
        EACH               7. Sole Dispositive Power                22,578,856*

     REPORTING
                           ----------------------------------------------------
       PERSON              8. Shared Dispositive Power                        0

        WITH
-------------------------------------------------------------------------------
 9. Aggregate Amount Beneficially Owned by Each Reporting Person    22,578,856*



-------------------------------------------------------------------------------
10. Check if the Aggregate Amount in Row (9) Excludes Certain Shares (SEE
    INSTRUCTIONS) / /



-------------------------------------------------------------------------------
11. Percent of Class Represented by Amount in Row (9)                     9.4%*



-------------------------------------------------------------------------------
12. Type of Reporting Person                                                 HC



-------------------------------------------------------------------------------
*   Includes shares held by the other reporting persons.



Item 1(a).   Name of Issuer:

             Solarfun Power Holdings Co. Ltd.

Item 1(b).   Address of Issuer's Principal Executive Offices:

             666 Linyang Road,
             Qidong, Jiangsu Province, 226200,
             People's Republic of China

Item 2(a).*  Name of Person Filing:

             Citigroup Venture Capital International Growth Partnership, L.P.
             ("CVCIGP")
             Citigroup Venture Capital International Co-Investment, L.P.
             ("CVCICI")
             Citigroup Venture Capital International Partnership G.P. Limited
             ("CVCIPL")
             Citigroup Venture Capital International Delaware Corporation
             ("CVCID")
             Citicorp International Finance Corporation ("CIFC")
             Citicorp Banking Corporation ("CBC")
             Citigroup Inc. ("Citigroup")

           * In accordance with Securities and Exchange Commission Release No.
             34-39538 (January 12, 1998), this filing reflects securities
             beneficially owned by Citigroup, a holding company for a global
             financial services group, on behalf of itself and its subsidiaries,
             excluding the Old Lane Partners ("Old Lane") business. Old Lane,
             its executive officers and directors and its direct and indirect
             subsidiaries may beneficially own securities of the Company, and
             such securities are not reported in this filing. Citigroup (other
             than Old Lane) disclaims beneficial ownership of securities
             beneficially owned by Old Lane, and Old Lane disclaims beneficial
             ownership of the securities reported herein.

Item 2(b).   Address or Principal Business Office:

             The address of the principal office of each of CVCIGP, CVCICI
             and CVCIPL is:

             26 New Street
             St. Helier
             Jersey, Channel Islands JE4 8PP

             The address of the principal office of CVCID is:

             731 Lexington Avenue
             New York, NY 10022

             The address of the principal office of each of CIFC and CBC is:

             One Penn's Way
             New Castle, DE 19720

             The address of the principal business office of Citigroup is:

             399 Park Avenue
             New York, NY 10043

Item 2(c).   Citizenship or Place of Organization:

             CVCIGP and CVCICI are chartered in Cayman Islands.

             CVCIPL is chartered in Jersey, Channel Islands.

             CVCID, CIFC, CBC and Citigroup are Delaware corporations.

Item 2(d).   Title of Class of Securities:

             Ordinary Shares, par value US$0.0001 per share.

Item 2(e).   Cusip Number:

             83415U-10-8

                               Page 9
                             of 12 Pages


Item 3.    If This Statement is Filed Pursuant to Rule 13d-1(b), or 13d-2(b)
           or (c), Check Whether the Person Filing is a:

           (a)  / / Broker or dealer registered under section 15 of the
                    Act (15 U.S.C. 78o).

           (b)  / / Bank as defined in section 3(a)(6) of the Act
                    (15 U.S.C. 78c).

           (c)  / / Insurance company as defined in section 3(a)(19) of
                    the Act (15 U.S.C. 78c).

           (d)  / / Investment company registered under section 8 of the
                    Investment Company Act of 1940 (15 U.S.C. 80a-8).

           (e)  / / An investment adviser in accordance with Section
                    240.13d-1(b)(1)(ii)(E);

           (f)  / / An employee benefit plan or endowment fund in accordance
                    with Section 240.13d-1(b)(1)(ii)(F);

           (g)  / / A parent holding company or control person in accordance
                    with Section  240.13d-1(b)(1)(ii)(G);

           (h)  / / A savings association as defined in Section 3(b) of the
                    Federal Deposit Insurance Act (12 U.S.C. 1813);

           (i)  / / A church plan that is excluded from the definition of an
                    investment company under section 3(c)(14) of the
                    Investment Company Act of 1940 (15 U.S.C. 80a-3);

           (j)  / / Group, in accordance with Section 240.13d-1(b)(1)(ii)(J).


Item 4.   Ownership. (as of December 31, 2007)

          (a)  Amount beneficially owned: See item 9 of cover pages

          (b)  Percent of Class: See item 11 of cover pages

          (c)  Number of shares as to which the person has:

                  (i)   Sole power to vote or to direct the vote:

                  (ii)  Shared power to vote or to direct the vote:

                  (iii) Sole power to dispose or to direct the disposition of:

                  (iv)  Shared power to dispose or to direct the disposition of:


                  See Items 5-8 of cover pages

                                       Page 10
                                     of 12 Pages


Item 5.   Ownership of Five Percent or Less of a Class.

          If this statement is being filed to report the fact that as of the
          date hereof the reporting person has ceased to be the beneficial owner
          of more than five percent of the class of securities, check the
          following [ ].

Item 6.   Ownership of More Than Five Percent on Behalf of Another Person.

          Not Applicable.

Item 7.   Identification and Classification of the Subsidiary Which Acquired
          the Security Being Reported on by the Parent Holding Company.

          CVCIPL holds a general partnership interest in each of CVCIGP and
          CVCICI. CVCID is the sole shareholder of CVCIPL. CIFC is the sole
          shareholder of CVCID. CBC is the sole shareholder of CIFC.
          Citigroup is the sole shareholder of CBC.

Item 8.   Identification and Classification of Members of the Group.

          Not applicable.

Item 9.   Notice of Dissolution of Group.

          Not applicable.



                                       Page 11
                                     of 12 Pages




Item 10.  Certification.

          Not Applicable.



SIGNATURE.

     After reasonable inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this statement is true, complete
and correct.

Dated: February 14, 2008


                               CITIGROUP VENTURE CAPITAL INTERNATIONAL
                               GROWTH PARTNERSHIP, L.P.

                               By:    CITIGROUP VENTURE CAPITAL
                                      INTERNATIONAL PARTNERSHIP G.P.
                                      LIMITED, AS GENERAL PARTNER

                               By:    /s/ Alfred Rodrigues
                                      -----------------------------------------
                               Name:  Alfred Rodrigues
                               Title: Alternate Director of Citigroup
                                      Venture Capital International
                                      Partnership G.P. Limited


                               CITIGROUP VENTURE CAPITAL INTERNATIONAL
                               CO-INVESTMENT, L.P.

                               By:    CITIGROUP VENTURE CAPITAL
                                      INTERNATIONAL PARTNERSHIP G.P.
                                      LIMITED, AS GENERAL PARTNER

                               By:    /s/ Alfred Rodrigues
                                      -----------------------------------------
                               Name:  Alfred Rodrigues
                               Title: Alternate Director of Citigroup
                                      Venture Capital International
                                      Partnership G.P. Limited


                               CITIGROUP VENTURE CAPITAL INTERNATIONAL
                               PARTNERSHIP G.P. LIMITED

                               By:    /s/ Alfred Rodrigues
                                      -----------------------------------------
                               Name:  Alfred Rodrigues
                               Title: Alternate Director



                               CITIGROUP VENTURE CAPITAL INTERNATIONAL
                               DELAWARE CORPORATION

                               By:    /s/ Alfred Rodrigues
                                      -----------------------------------------
                               Name:  Alfred Rodrigues
                               Title: Director






                               CITICORP INTERNATIONAL FINANCE
                               CORPORATION

                               By:    /s/ William H. Wolf
                                      -----------------------------------------
                               Name:  William H. Wolf
                               Title: Vice President


                               CITICORP BANKING CORPORATION

                               By:    /s/ William H. Wolf
                                      -----------------------------------------
                               Name:  William H. Wolf
                               Title: Senior Vice President


                               CITIGROUP INC.

                               By:    /s/ Riqueza V. Feaster
                                      -----------------------------------------
                               Name:  Riqueza V. Feaster
                               Title: Assistant Secretary


                                       Page 12
                                     of 12 Pages




                          EXHIBIT INDEX TO SCHEDULE 13G
                          -----------------------------


EXHIBIT 1
---------

Agreement among CVCIGP, CVCICI, CVCIPL, CVCID, CIFC, CBC and Citigroup as to
joint filing of Schedule 13G.