开山股份(300257.SZ)：控股股东拟减持不超过1%股份

Core Viewpoint - Kaishan Holdings Group Co., Ltd., the controlling shareholder of Kaishan Co., Ltd. (300257.SZ), plans to reduce its shareholding by up to 9,936,350 shares, representing no more than 1% of the company's total share capital, within three months starting from December 12, 2025 [1] Summary by Category - Shareholding Reduction Plan - The reduction will be executed through centralized bidding or block trading methods [1] - The announcement is effective from the date of publication, with a specific timeline for the reduction [1]