UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

~~WASHINGTON~~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 ~~May~~June 2025

Commission file number: 001-39978

CN ENERGY GROUP. INC.

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 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 ☐

~~Reverse~~CNEY ~~Stock~~Has ~~Split~~Regained Compliance with Nasdaq Minimum Bid Price Requirement

As previously disclosed, on May 28, 2024, CN Energy Group. Inc. (~~NASDAQ: CNEY) (~~“CNEY” or the “Company”) ~~effectuated~~received a ~~1-for-25~~deficiency ~~stock~~notice ~~split~~from the Listing Qualifications Department of the Nasdaq Stock Market LLC (“Nasdaq”) notifying the Company that, for the last 30 consecutive business days, the closing bid price for the Company’s Class A ordinary shares ~~with~~(the no“Ordinary ~~par~~Shares”) ~~value,~~had atbeen ~~12:01~~below athe minimum of $1.m.00 ~~Eastern~~per ~~Time~~Ordinary Share required for continued listing on ~~May~~the ~~19,~~Nasdaq ~~2025~~Capital Market (the “~~Reverse~~Minimum ~~Stock~~Bid ~~Split~~Price Rule”). ~~The~~and ~~Class~~did Anot ~~ordinary~~meet ~~shares~~the ~~began~~Minimum ~~trading~~Bid onPrice Rule set forth in Nasdaq Listing Rule 5550(a)(2). Pursuant to the Nasdaq ~~Capital~~Listing ~~Market~~Rules, onthe Company had been provided with a ~~split-adjusted~~compliance ~~basis~~period ~~beginning~~of on180 ~~May~~calendar 19days, ~~2025,~~or ~~under~~until ~~the~~November ~~Company’s~~25, ~~existing~~2024, ~~trading~~to ~~symbol~~regain ~~“CNEY”~~compliance with the ~~new~~Minimum ~~CUSIP~~Bid ~~number~~Price ~~G2181K204~~Requirement.

~~The~~On ~~Reverse~~November ~~Stock~~26, ~~Split~~2024, ~~reduced~~ the ~~number~~Company ofreceived ~~Class~~a Awritten ~~ordinary~~notice ~~shares~~from ~~issued~~Nasdaq ~~and~~notifying ~~outstanding~~the ~~from~~Company ~~approximately~~that, ~~75.28~~while ~~million~~the toCompany ~~approximately~~has ~~3.01~~not ~~million.~~regained Nocompliance ~~fractional~~with ~~shares~~the ~~were~~Minimum ~~issued~~Bid inPrice ~~connection~~Rule, ~~with~~Nasdaq ~~the~~had ~~Reverse~~determined ~~Stock~~that ~~Split.~~the ~~Any~~Company ~~amount~~was ofeligible ~~fractional~~for ~~shares~~an ~~were~~additional ~~rounded~~180 upcalendar today ~~the~~period, ~~next~~or ~~nearest~~until ~~number~~May at27, ~~the~~2025, ~~participant~~to ~~level~~regain compliance.

~~The~~On ~~Reverse~~June ~~Stock~~4, ~~Split~~2025, isNasdaq ~~primarily~~provided ~~intended~~written confirmation to ~~increase~~the Company that for the ~~market~~last ~~price~~10 ~~per~~consecutive ~~share~~business days, from May 19 through June 3, 2025, the closing bid price of the Company’s ~~Class~~Ordinary AShares ~~ordinary~~has ~~shares~~been toat ~~regain~~$1.00 ~~compliance~~per ~~with~~share or greater. Accordingly, the ~~minimum~~Company ~~bid~~has ~~price~~regained ~~required~~compliance ~~for~~with ~~continued~~Nasdaq ~~listing~~Listing onRule 5550(a)(2), and the ~~Nasdaq~~matter ~~Capital~~is ~~Market~~now closed.

~~SIGNATURE~~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: May 19, 2025	By:	/s/ Wenhua Liu
Date: June 6, 2025	By:	/s/ Wenhua Liu
	Name:	Wenhua Liu
	Title:	Interim Chief Executive Officer

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