China Oilfield Services Limited announced on 21 July 2023, the Board received the written resignation from Mr. Liu Zongzhao, a non-executive director of the company. The resignation of Mr. Liu Zongzhao as a non-executive director of the company was due to the adjustment of his work arrangement, with effect from the date when a new non-executive director is elected by the shareholders of the Company at the extraordinary general meeting. Mr. Liu Zongzhao has confirmed that he has no disagreement with the Board and there is no matter that needs to be brought to the attention of the holders of securities of the Company and The Stock Exchange of Hong Kong Limited with regard to his resignation.

Mr. Liu Zongzhao performed his work rigorously, diligently and pragmatically during his tenure as a non-executive director of the company, and made significant contributions to the development of the Company. The Board would like to express its heartfelt gratitude to Mr. Liu Zongzhao.