CHINA OIL & GAS (incorporated in Bermuda with limited liability) announced on 25 June 2026 that the circular for its forthcoming Special General Meeting has been published in both English and Chinese on the company website (www.hk603.com) and the HKEXnews platform (www.hkexnews.hk).

Non-registered shareholders who previously elected to receive hard copies will receive the printed circular by mail. Shareholders encountering difficulty accessing the online version can obtain a printed copy free of charge by contacting the Hong Kong branch share registrar, Computershare Hong Kong Investor Services Limited.

Pursuant to Rule 2.07A of the Hong Kong Listing Rules, which expanded the paperless regime effective 31 December 2023, CHINA OIL & GAS has transitioned to electronic dissemination for all future corporate communications. Consequently, printed versions will no longer be issued unless specifically requested.

Non-registered shareholders are advised to provide a functional email address to their respective banks, brokers, custodians, nominees or HKSCC Nominees Limited to ensure receipt of electronic notifications. Absent an email record, shareholders must proactively monitor the company and HKEXnews websites for future releases.

Shareholders wishing to continue receiving printed materials may submit the enclosed reply form to the share registrar or email ecomm@hk603.com, specifying name, address and the request for hard copies.

For enquiries, the company can be reached at +852 2200 2222 on weekdays between 9:00 a.m. and 6:00 p.m. (Hong Kong time).