Starlight New Materials: Specific shareholder Niu Jiang completes the reduction of 1.17% of the company's shares.

Announcement by Xinghua New Materials: Shareholder Niu Jiang reduced his holdings of the company's shares by 1.70 million shares, accounting for 1.00% of the total share capital, through centralized bidding and block trading methods from September 20 to December 19, 2025, with an average price of 28.75 yuan/share; at the same time, he also reduced his holdings by 296,900 shares, accounting for 0.17% of the total share capital, with an average price of 24.5 yuan/share. After the reduction, Niu Jiang no longer holds any shares in the company.