三达膜：聘任唐佳菁为董事会秘书

Group 1 - The core point of the article is the appointment of Tang Jiajing as the secretary of the board of directors to enhance internal operational management efficiency at Sandamembrane [1] - For the year 2024, the revenue composition of Sandamembrane is as follows: membrane technology applications account for 53.09%, water investment and operation account for 42.1%, and construction revenue accounts for 4.81% [1] - As of the report date, Sandamembrane has a market capitalization of 5.5 billion yuan [1]