三维化学：第四季度土木工程建筑业务新签约订单合计1.46亿元

Group 1 - The core point of the article is that Sanwei Chemical (002469.SZ) reported its civil engineering construction business performance for the fourth quarter of 2025, highlighting significant new contract signings and total uncompleted orders [1] Group 2 - In the fourth quarter, the company signed new contracts totaling 145.6115 million yuan [1] - As of the end of the reporting period, the cumulative amount of signed but uncompleted orders reached 1.3141148 billion yuan [1]