The Board of Directors of Sinopec Oilfield Service Corporation received the resignation letter from Mr. Pan Ying an Independent Non-executive Director of the Company (the "INED") on 2 April 2020. Due to his personal health reasons, Mr. Pan is currently unable to perform his duties normally and has requested to resign as INED, Chief Officer of the Remuneration Committee and Member of the Audit Committee of the Ninth Session of the Board.