Ownership Filing for CN ENERGY GROUP. INC.

This filing reports on the ownership details of Wenhua Liu, an insider at CN ENERGY GROUP. INC. (CNEY). Liu Wenhua, identified by CIK 0002125418, holds a director and officer position, specifically Interim CEO. The filing indicates that Liu Wenhua has no securities owned as of the reporting period ending March 18, 2026. The owner's address is located in Lishui, China. The signature date for this document is May 20, 2026.