The board of directors of China Oilfield Services Limited has resigned as the company secretary and authorised representative of the Company due to job changes with effect from 28 October 2021. Ms. Wu has confirmed that she has no disagreement with the Board and there is no matter relating to her resignation that needs to be brought to the attention of The Stock Exchange of Hong Kong Limited and the shareholders of the Company. The Company is currently identifying suitable candidate(s) to fill the vacancy of the company secretary and will ensure that suitable candidate(s) will be appointed as soon as practicable. The Company will make further announcement on the appointment of new company secretary in due course.