(Stock code: 632) （股份代號：632） NOTIFICATION LETTER 通知信函 30 September 2025 Dear Shareholder(s), CHK Oil Limited (the "Company") – Notification of publication of the 2025 Interim Report (the "Current Corporate Communication") The Current Corporate Communication of the Company, in both English and Chinese versions, is available on the website of the Company at https://www.chkoilltd.com. You may access the Current Corporate Communication by clicking the "Investor Relations" section of the Company's website. * (In ...