Yihao New Materials: Liu Lei resigns as company secretary, was previously appointed

Yihao New Materials announced that the company held the 11th meeting of the third board of directors on July 17, 2026, and approved relevant resolutions. Due to work adjustments, general manager LIU LEI resigned from the position of board secretary, but remains as general manager. LIU LEI indirectly holds 1,080,200 shares, accounting for 0.64% of the total share capital. Nominated by the chairman and reviewed by the nomination committee, the meeting agreed to appoint ZENG KAI as the new board secretary, with a term until the end of the third session of the board of directors. ZENG KAI has no holdings, no relevant relationships, and meets the qualifications for the position.