Announcement on Change of Financial Controller and Adjustment of Board Special Committee Members

Stock Code: 300807 Stock Abbreviation: Tianmai Technology Zhengzhou Tianmai Technology Co., Ltd. Announcement No.: 2026-060 Announcement on Change of Financial Controller and Adjustment of Board Special Committee Members The Company and all members of the Board of Directors guarantee that the information disclosed is true, accurate, and complete, and that there are no false records, misleading statements, or material omissions. Zhengzhou Tianmai Technology Co., Ltd. (hereinafter referred to as the "Company") held the sixth meeting of the fifth Board of Directors on June 22, 2026, and reviewed and approved the "Proposal on Appointing the Financial Controller" and the "Proposal on Adjusting the Composition of the Board Special Committee." The specific situation is hereby announced as follows: I. Change of Financial Controller The Board of Directors recently received the written resignation report from Ms. Song Mingxiao, the Company's Financial Controller, who applied to resign from her position as Financial Controller due to work adjustments. Ms. Song Mingxiao will continue to be employed by the Company after resigning as Financial Controller. In accordance with the "Company Law of the People's Republic of China," "Shenzhen Stock Exchange Listed Company Self-Regulatory Supervision Guidelines No. 2 - Norms for the Operation of GEM Listed Companies," and the "Articles of Association," Ms. Song Mingxiao's resignation application shall take effect from the date it is delivered to the Company's Board of Directors. Ms. Song Mingxi