The board of directors of CNOOC Limited announced that, Mr. Li Yong (Mr. Li) has resigned as a Non-executive Director and the Vice Chairman of the Board due to retirement, with effect from 18 December 2023. Accordingly, he will also cease to be a member of the remuneration committee and the strategy and sustainability committee of the Company on the same day. Mr. Li confirmed that he has no disagreement with the Board and there is no matter relating to his resignation that need to be brought to the attention to the Shareholders of the Company and The Stock Exchange of Hong Kong Limited.