上大股份：股东拟合计减持不超3.9%公司股份

Core Viewpoint - The announcement indicates significant shareholder intentions to reduce their stakes in the company, which may impact stock performance and investor sentiment [1] Shareholder Reduction Plans - Guotou Mining Investment Co., Ltd., holding 13.45% of the shares, plans to reduce its holdings by up to 3.5 million shares, representing 0.94% of the total share capital [1] - Specific shareholder Yao Xinchun, holding 4.03%, intends to reduce his stake by up to 3.4 million shares, accounting for 0.91% of the total share capital [1] - Zhongjin Company, holding 2.5% through a strategic placement asset management plan, plans to reduce its holdings by up to 7.6285 million shares, which is 2.05% of the total share capital [1]