Yatsen Holding Limited announced the resignation of Mr. Weihua Chen as the chief technology officer of (the Company) and the appointment of Ms. Jing Cheng as the chief scientific officer of the Company, both effective from March 8, 2023.Ms. Cheng has over 25 years of experience in research and development in the beauty industry. Prior to joining the Company, Ms. Cheng worked at Estee Lauder Companies for 17 years, having served in a number of senior management and research positions, including as vice president, APAC R&D, since July 2014. From July 2001 to January 2005, Ms. Cheng worked at Revlon, leading technical, quality control, regulatory and manufacturing organizations in China.

Before 2001, she worked at several other companies, including Henkel from July 2000 to July 2001. Ms. Cheng received her bachelors degree in polymer science from Shanghai Jiao Tong University, and her masters degree in fine chemistry from East China University of Science and Technology. She also completed the Fudan-Olin Executive MBA program co-held by Washington University in St.

Louis and Fudan University in 2009.