CHINA GAS INDUSTRY INVESTMENT HOLDINGS CO. LTD. (Incorporated in the Cayman Islands with members' limited liability) （於開曼群島註冊成立的成員有限公司） （Stock Code 股份代號：1940） NOTIFICATION LETTER 通知信函 Dear Registered Shareholders, CHINA GAS INDUSTRY INVESTMENT HOLDINGS CO. LTD. (the "Company") – Notice of publication of 2025 Annual Report, Circular in relation to proposals for general mandates and re-election of retiring directors, and notice of annual general meeting and Proxy Form (the "Current Corporate Communication") a ...