三维股份：持股5%以上股东吴善国延期购回2750万股质押股份

Group 1 - Company Sanwei Co., Ltd. announced that major shareholder Wu Shanguo has pledged 27.5 million shares to Huaxi Securities for a stock pledge repurchase transaction, with the pledge period extended to August 28, 2026 [1] - For the first half of 2025, Sanwei's revenue composition is as follows: polyester fiber accounts for 34.23%, BDO and calcium carbide account for 32.76%, rubber industry accounts for 24.6%, concrete sleepers account for 4.78%, and others account for 3.62% [1] - As of the report date, Sanwei's market capitalization is 12.3 billion yuan [1]