万德斯：董事会秘书、核心技术人员戴昕离任

Group 1 - The core point of the article is the resignation of Mr. Dai Xin, the secretary of the board and core technical personnel of Wandes, due to personal reasons, effective September 15, 2025 [1] - Wandes' revenue composition for the year 2024 shows that the environmental protection industry accounts for 99.31% of its total revenue, while other businesses contribute only 0.69% [1] - As of the time of reporting, Wandes has a market capitalization of 2.2 billion yuan [2]