The board of directors of Sinopec Oilfield Service Corporation announced that it has accepted the resignation of Mr. Ye Guohua from his position as a Director and member of Audit Committee of the Board of the company due to new working arrangement on 23 August 2018. According to the Articles of Association of the company, Mr. Ye's resignation takes effect upon the submission of the resignation letter to the Board on 23 August 2018.