SEC Form 6-K filed by CN Energy 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

Commission File Number: 001-39978

Building 2-B, Room 206, No. 268 Shiniu Road

Liandu District, Lishui City, Zhejiang Province

The People’s Republic of China

(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

CN Energy Group. Inc. (the “Company”) is furnishing this report of foreign private issuer on Form 6-K to provide the six-month interim financial statements for the period ended March 31, 2025 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 333-264579), as amended, and into the prospectus outstanding under the foregoing registration statement, to the extent not superseded by documents or reports subsequently filed or furnished by the Company under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as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.

Forward Looking Statements

This Report on Form 6-K includes “forward-looking statements” within the meaning of the “safe harbor” provisions of the Private Securities Litigation Reform Act of 1995. Our actual results may differ from their expectations, estimates and projections and consequently, you should not rely on these forward-looking statements as predictions of future events. Words such as “expect,” “estimate,” “project,” “budget,” “forecast,” “anticipate,” “intend,” “plan,” “may,” “will,” “could,” “should,” “believes,” “predicts,” “potential,” “continue,” and similar expressions are intended to identify such forward-looking statements. These forward-looking statements include, without limitation, our expectations with respect to future performance and anticipated financial impacts. These forward-looking statements involve significant risks and uncertainties that could cause the actual results to differ materially from the expected results. Most of these factors are outside our control and are difficult to predict. Factors that may cause such differences include, but are not limited to risks and uncertainties incorporated by reference under “Risk Factors” in the Registrant’s Form 20-F (001-39978) filed with the Securities and Exchange Commission (the “SEC”) on February 15, 2024 (the “Form 20-F”) and in the Registrant’s other filings with the SEC. The Registrant cautions that the foregoing factors are not exclusive. The Registrant cautions readers not to place undue reliance upon any forward-looking statements, which speak only as of the date made. The Registrant does not undertake or accept any obligation or undertaking to release publicly any updates or revisions to any forward-looking statements to reflect any change in its expectations or any change in events, conditions or circumstances on which any such statement is based.

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.