The board of directors of WuXi AppTec Co., Ltd. announced that on March 30, 2021, at the thirteenth meeting of the second session of the Board, it has resolved and approved, the change of members of certain committees of the Board. Dr. Jiangnan Cai, an independent non-executive Director who has been involved in health economics and policies education, research and consultation for many years, with significant industry experience and research results in the healthcare industry, has been appointed as a member of the Audit Committee for a term commencing on March 30, 2021 and ending on the expiration of the term of the second session of the Board; and Ms. Yan Liu, an independent non-executive Director, has ceased to be a member of the Audit Committee with effect from March 30, 2021. Mr. Dai Feng, an independent non-executive Director, has been appointed as a member of the Remuneration and Appraisal Committee for a term commencing on March 30, 2021 and ending on the expiration of the term of the second session of the Board; and Dr. Ning Zhao, an executive Director, has ceased to be a member of the Remuneration and Appraisal Committee for a term commencing on March 30, 2021.