6-K - EURO TECH HOLDINGS CO LTD (0001026662) (Filer)

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 October 2026

Commission File Number: 000-22113

18/F Gee Chang Hong Centre, 65 Wong Chuk Hang Road, Hong Kong

(Address of principal executive offices)

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

Form 20-F ☒     Form 40-F ☐

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1):

Yes ☐     No ☒

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7):

Yes ☐     No ☒

Item 5. Other Events

On or about October 26, 2026, Euro Tech Holdings Company Limited caused to be sent to its shareholders of record as of October 19, 2026 a Notice of its Annual Meeting of Shareholders to be held on November 19, 2026 (“Meeting”) in Hong Kong, as well as the Proxy Statement and Proxy Card with regard to the Meeting.

Item 7. Financial Statements and Exhibits

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.