康欣新材料股份有限公司关于控股股东增持公司股份计划时间过半暨增持进展的公告

Core Viewpoint - The controlling shareholder of Kangxin New Materials Co., Ltd. plans to increase its stake in the company, demonstrating confidence in the company's future development and aiming to enhance investor confidence [2][3]. Summary by Sections 1. Disclosure of the Increase Plan - The controlling shareholder, Wuxi Construction Development Investment Co., Ltd. (Wuxi Jianfa), intends to increase its shareholding through the Shanghai Stock Exchange from April 10, 2025, for a period of 12 months, with a total investment of no less than RMB 26.9 million and no more than RMB 53.79 million, representing up to 2% of the company's total share capital [2]. 2. Progress of the Increase Plan - As of April 29, 2025, Wuxi Jianfa has acquired 387,800 shares, approximately 0.03% of the total share capital, for a total amount of RMB 775,600. Following this, Wuxi Jianfa holds 517,290,385 shares, accounting for 38.47% of the total share capital [3]. - Between April 30, 2025, and October 9, 2025, Wuxi Jianfa further increased its holdings by 4,523,700 shares, with an investment of RMB 12,699,635, representing about 0.34% of the total share capital [3]. - As of the announcement date, Wuxi Jianfa has cumulatively increased its holdings by 4,911,500 shares, approximately 0.37% of the total share capital, with a total investment of RMB 13,475,235, exceeding half of the lower limit of the planned investment [3][4]. 3. Current Shareholding Status - As of October 10, 2025, Wuxi Jianfa holds a total of 521,814,085 shares, which is 38.81% of the company's total share capital [4].