*ST国华：高级管理人员于青川辞职

Group 1 - The core point of the article is the resignation of Yu Qingchuan, the Deputy General Manager of *ST Guohua, due to personal reasons [1] - As of the report date, *ST Guohua has a market capitalization of 1.4 billion yuan [1] - The revenue composition for *ST Guohua from January to June 2025 is as follows: mobile network security accounts for 82.23%, pharmaceutical technology services for 12.49%, others for 3.65%, and emergency industry for 1.64% [1]