SEC Form 6-K filed by Hongli Group Inc.

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

Hongli Group Inc.

(Exact name of registrant as specified in its charter)

No. 777, Daiyi Road,

Changle County, Weifang City,

Shandong Province, China, 262400

(Address of Principal Executive Office)

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 ☐

EXPLANATORY NOTE

Hongli Group Inc., a Cayman Islands exempted company (the “Company”) is furnishing this Form 6-K to provide its unaudited condensed consolidated financial statements as of June 30, 2025 and for the six months ended June 30, 2025 and 2024, and incorporate such financial statements into the Company’s registration statement referenced below.

This report of foreign private issuer on Form 6-K is hereby incorporated by reference into the registration statement on Form F-3 of the Company (File Number 333-289457), as amended, and into the prospectus outstanding under the foregoing registration statement, to the extent not superseded by documents or reports subsequently filed or furnished by the Company under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended.

Financial Statements and Exhibits.

Exhibits:

SIGNATURES

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