Stanley Yi Chang, has served as an independent non-executive director of YS Group since January 2021. Dr. Chang is currently an independent non-executive director of Nongfu Spring Co., Ltd., a company listed on the main board the Hong Kong Stock Exchange (9633.HK). Dr. Chang is currently a standing council member of the China Institute of Internal Audit, and a member of the Auditing Expert Panel of Asian Development Bank. He is also Audit Committee Chair (Board member) of CoWealth Co.  (Shanghai Exchange 603122). Dr. Chang has been a professor at the Shanghai Advance Institute of Finance of Shanghai Jiaotong University since July 2018. He was a professor at National Taiwan University from August 2016 to June 2018. Prior to that, Dr. Chang had successively served as the chief operating officer of MarcumBP where he also led its China Advisory Services; managing partner of China Advisory Services and global business risk services leader for Grant Thornton; and partner of business risk services and Asia Pacific life sciences leader for Ernst & Young from September 2007 to October 2016.