[CHINA AUTOMOTIVE SYSTEMS, INC. INDEX Page Explanatory Note 3 Part I — Financial Information 5 Item 1. Financial Statements 5 Condensed Consolidated Statements of Income (Operations) (Unaudited) for the Three Months and Nine Months Ended September 30, 2010 and 2009 5 Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) for the Three Months and Nine Months Ended September 30, 2010] [RULE 13a-14(a) CERTIFICATION FOR FORM 10-Q/A (CEO) CERTIFICATION I, Qizhou Wu, certify that: 1. I have reviewed this quarterly report on Form 10-Q/A 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] [RULE 13a-14(a) CERTIFICATION FOR FORM 10-Q/A (CFO) CERTIFICATION I, Jie Li, certify that: I have reviewed this quarterly report on Form 10-Q/A 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] [SECTION 1350 CERTIFICATION (CEO) 1350 CHINA AUTOMOTIVE SYSTEMS, INC. 18 U.S.C. SECTION 1350, SECTION 906 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. Qizhou Wu Chief Executive Officer EX-32.1 4 v226708_ex32-1.htm] [SECTION 1350 CERTIFICATION (CFO) 1350 CHINA AUTOMOTIVE SYSTEMS, INC. 18 U.S.C. SECTION 1350, SECTION 906 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. Jie Li Chief Financial Officer EX-32.2 5 v226708_ex32-2.htm]

[CHINA AUTOMOTIVE SYSTEMS, INC. INDEX Page Explanatory Note 3 Part I — Financial Information Item 1. Financial Statements 5 Condensed Consolidated Statements of Income (Operations) (Unaudited) for the Three Months Ended March 31, 2010 and 2009 5 Condensed Consolidated Statements of Comprehensive Income (Unaudited) for the Three Months Ended March 31, 2010 and 2009 6 Condensed Consolidated Balance Sheets at] [RULE 13a-14(a) CERTIFICATION FOR FORM 10-Q/A I, Qizhou Wu, certify that: 1. I have reviewed this quarterly report on Form 10-Q/A 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] [I, Jie Li, certify that: 1. I have reviewed this quarterly report on Form 10-Q/A 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 were] [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. Qizhou Wu Chief Executive Officer EX-32.1 4 v226706_ex32-1.htm] [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. Jie Li Chief Financial Officer EX-32.2 5 v226706_ex32-2.htm]