[GL Asia Mauritius II Cayman Limited 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) [ ] (b) [X] 3. SEC USE ONLY 4. CITIZENSHIP OR PLACE OF ORGANIZATION Cayman Islands NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH: 5. SOLE VOTING POWER 10,252,468 6. SHARED VOTING POWER None 7. SOLE DISPOSITIVE POWER 10,252,468 8.]

[*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]

[Joint Filing Agreement [Remainder of this page has been left intentionally blank.] Donald Zhang Donald Zhang Harry Lu Harry Lu IFM Overseas Partners L.P.] [(Name of Issuer) Class A Ordinary Shares (Title of Class of Securities) 45172L100 (CUSIP Number) December 31, 2010 (Date of Event Which Requires Filing of this Statement) ¨ 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]

[Dated: February 8, 2011 Columbia Wanger Asset Management, LLC Bruce H. Lauer Chief Operating Officer Columbia Acorn Trust Bruce H. Lauer Vice President, Treasurer and Secretary EX-99.1 2 c62860k1exv99w1.htm EX-99.1] [CUSIP No. 45172L100 1 NAMES OF REPORTING PERSONS 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS) o (a) o (b) 3 SEC USE ONLY 4 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware 5 SOLE VOTING POWER]