Company: CAAS
Filing Date: 2025-09-11
Form Type: 6-K
Source: 0001410578-25-002100
Chunk: 0

Company: China Automotive Systems, Inc.
Filing Date: 2025-09-11
Form: 6-K
Chunk 0
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<div align='center'>UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 6-K

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE
13a-16 OR 15d-16 UNDER
THE SECURITIES EXCHANGE ACT OF 1934

For the month of September 2025

Commission File Number ________

CHINA AUTOMOTIVE SYSTEMS, INC.

(Translation of registrant’s name into English)

No. 1 Henglong Road, Yu Qiao Development Zone

Shashi District, Jing Zhou City, Hubei Province, 434000

The People’s Republic of China

(Address of principal executive office)</div>

Indicate by check mark whether the registrant
files or will file annual reports under cover Form 20-F or Form 40-F. Form 20-F x Form 40-F
¨

On September 11, 2025, China Automotive Systems,
Inc., a Delaware corporation (“CAAS”), completed a redomicile merger (the “Redomicile Merger”), resulting in CAAS
merging with and into China Automotive Systems Holdings, Inc., a company incorporated under the laws of the Cayman Islands (“CAAS
Cayman”), with CAAS Cayman as the surviving company and changing its name to China Automotive Systems, Inc., pursuant to the Agreement
and Plan of Merger, dated as of June 26, 2025, by and between CAAS and CAAS Cayman (the “Merger Agreement”). The Merger Agreement
and the Redomicile Merger were approved by the stockholders of CAAS at a special meeting of stockholders held on September 10, 2025. The
Merger Agreement was filed with CAAS Cayman’s Registration Statement on Form F-4 filed with the Securities and Exchange Commission
(the “SEC”) on July 1, 2025 (the “Registration Statement”) and CAAS Cayman’s prospectus filed with the SEC
on August 4, 2025 (the “Prospectus”). On September 11, 2025, CAAS filed a current report on Form 8-K with the SEC, disclosing
the completion of the Redomicile Merger, which report is incorporated herein by reference.

Prior to the Redomicile Merger, shares of CAAS’
common stock were registered pursuant to Section 12(b) of the Securities Exchange Act of