[INDEX Page Part I — Financial Information Item 1. Financial Statements. 4 Condensed Unaudited Consolidated Statements of Income for the Three Months and Nine Months Ended September 30, 2011 and 2010 4 Condensed Unaudited Consolidated Statements of Comprehensive Income for the Three Months and Nine Months Ended September 30, 2011 and 2010 6 Condensed Unaudited Consolidated Balance Sheets at September] [RULE 13a-14(a) CERTIFICATION FOR FORM 10-Q 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] [RULE 13a-14(a) CERTIFICATION FOR FORM 10-Q 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] [18 U.S.C. SECTION 1350, OF THE SARBANES-OXLEY ACT OF 2002 (1) (2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company. Qizhou Wu President and Chief Executive Officer] [18 U.S.C. SECTION 1350, OF THE SARBANES-OXLEY ACT OF 2002 (1) (2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company. Jie Li Chief Financial Officer]