[FORM 10-Q x For the quarterly period ended December 31, 2011 OR o For the transition period from SYNUTRA INTERNATIONAL, INC. DELAWARE 13-4306188 (State or Other Jurisdiction of Incorporation or Organization) I.R.S. Employer Identification No. 2275 Research Blvd., Suite 500 Rockville, Maryland 20850 (301) 840-3888 x o x o o Large accelerated filer x Accelerated filer] [I, Liang Zhang, certify that: 1. I have reviewed this quarterly report on Form 10-Q of Synutra International, Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made,] [I, Weiguo Zhang, certify that: 1. I have reviewed this quarterly report on Form 10-Q of Synutra International, Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made,] [18 U.S.C. SECTION 1350, SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002] [18 U.S.C. SECTION 1350, SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002]