The board of directors of WuXi AppTec Co., Ltd. announces that Dr. Shuhui Chen of the Company will retire on April 10, 2024, being the 20th anniversary of him joining the Company. On that day, he will resign from his roles as an executive vice president and head of WuXi DDSU of the Company. Following his retirement, Dr. Chen will continue to provide advice and guidance to WuXi DDSU as a consultant of the Company.

Dr. Chen has confirmed that he has no disagreement with the Board and there are no matters relating to his retirement that need to be brought to the attention of the shareholders of the Company and The Stock Exchange of Hong Kong Limited.