Group 1 - The core point of the article is the resignation of Zhao Xin from the board of directors and the strategic and investment committee of Zhengyuan Dixin due to personal reasons, after which he will no longer hold any position in the company [1] - As of the report date, Zhengyuan Dixin has a market capitalization of 3.8 billion yuan [1] - For the first half of 2025, the revenue composition of Zhengyuan Dixin is as follows: surveying and geographic information services account for 40.09%, underground pipeline safety operation and maintenance technology services account for 38.79%, smart city construction and operation account for 19.27%, and other businesses account for 1.84% [1]