蓝天燃气：聘任杨海南为公司董事会秘书

Company Announcement - Mr. Zhao Xin has resigned from the position of Secretary of the Board due to work adjustments, and Mr. Yang Hainan has been appointed as the new Secretary of the Board, recommended by Chairman Li Xinhua and approved by the Board's Nomination Committee [1] Financial Performance - For the first half of 2025, the revenue composition of Blue Sky Gas is as follows: pipeline natural gas sales account for 46.44%, urban natural gas sales for 40.58%, gas installation projects for 9.83%, other revenues for 2.4%, and natural gas transmission for 0.66% [1] Market Valuation - As of the report date, Blue Sky Gas has a market capitalization of 5.7 billion yuan [1]