[FORM 10-Q (Mark one) x For the quarterly period ended March 31, 2010 Or ¨ For the transition period from ________ to _________ China Automotive Systems, Inc. specified in its charter) Delaware 33-0885775 (State or other jurisdiction of incorporation or organization) (I.R.S. employer identification number) No. 1 Henglong Road, Yu Qiao Development Zone, Shashi District, Jing Zhou City, Hubei Province,] [CERTIFICATION I, Qizhou Wu, certify that: 1. I have reviewed this quarterly report on Form 10-Q of China Automotive Systems, 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] [CERTIFICATION I, Jie Li, certify that: 1. I have reviewed this quarterly report on Form 10-Q of China Automotive Systems, 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] [CHINA AUTOMOTIVE SYSTEMS, INC. 18 U.S.C. SECTION 1350, OF THE SARBANES-OXLEY ACT OF 2002 (2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company. 6 Qizhou Wu Chief Executive Officer EX-32.1 4 v183525_ex32-1.htm] [CHINA AUTOMOTIVE SYSTEMS, INC. 18 U.S.C. SECTION 1350, OF THE SARBANES-OXLEY ACT OF 2002 (2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company. 6 Jie Li Chief Financial Officer EX-32.2 5 v183525_ex32-2.htm]