精工钢构：股东精工投资质押5000万股

Group 1 - The company announced that its shareholder, Jinggong Investment, pledged 50 million shares of the company on September 10, 2025 [1] - As of the announcement date, the controlling shareholder, Jinggong Holding Group Co., Ltd., and its subsidiaries have cumulatively pledged 459 million shares, accounting for 77.69% of their total holdings in the company and 23.07% of the company's total share capital [1] - The purpose of this pledge is primarily for the operational needs of the shareholder [1]