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 August 2021

Commission File Number: 001-39978

CN Energy Group. Inc.

Building 1-B, Room 303, No. 268 Shiniu Road

Liandu District, Lishui City, Zhejiang Province 323010

The PRC

+86-571-87555823

(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 xForm 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): ¨

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): ¨

EXPLANATORY NOTE

CN Energy Group. Inc. is furnishing this report on Form 6-K to provide its interim financial statements for the six months ended March 31, 2021 and 2020.

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.

	CN Energy Group. Inc.
Date: August 27, 2021	By:	/s/ Kangbin Zheng
	Name:	Kangbin Zheng
	Title:	Chief Executive Officer

EXHIBIT INDEX

Exhibit No.	Description
99.1	Unaudited Condensed Consolidated Financial Statements for the Six Months Ended March 31, 2021 and 2020