三维股份：吴善国及其一致行动人叶继艇累计质押公司股份5810万股

Group 1 - The core point of the article is that Sanwei Co., Ltd. announced significant shareholding and pledge details involving major shareholders, which may impact the company's financial stability and market perception [1] - Wu Shanguo and his concerted action partner Ye Jiting collectively hold approximately 178 million shares, accounting for about 17.27% of the total share capital of Sanwei Co., Ltd. [1] - After the recent pledge, Wu Shanguo and Ye Jiting have pledged a total of 58.1 million shares, which represents 32.63% of their total holdings and 5.63% of the company's total share capital [1] Group 2 - For the first half of 2025, the revenue composition of Sanwei Co., Ltd. is as follows: polyester fiber accounts for 34.23%, BDO and calcium carbide account for 32.76%, the rubber industry accounts for 24.6%, concrete sleepers account for 4.78%, and others account for 3.62% [1] - As of the report, the market capitalization of Sanwei Co., Ltd. is 12 billion yuan [1]