Mr. Yusheng Han is our founder, chairman of the board of directors and chief executive officer. Mr. Han has 16 year of experience in life science. From June 2011 to November 2013, he was an associate in Northern Light Venture Capital where he focused on investment in the healthcare industry and helped the firm invest in successful companies. From July 2005 to May 2009, Mr. Han worked at BioTek Instruments, Inc. as its general manager in China. During his term with BioTek Instruments China, he built and led teams across marketing, sales and post-sale. From September 2003 to May 2005, he served as the product specialist of Gene Company Limited. Mr. Han received a bachelor’s degree in biochemistry from Jilin University in July 2000, and a master’s degree in cell biology in Peking Union Medical College in June 2003. He obtained a Master of Business Administration degree from Columbia Business School in May 2011.

Mr. Leo Li has served as our chief financial officer since the third quarter of 2019 and our director since the first quarter of 2020. Prior to joining us, Mr. Li served as the chief financial officer of Weidai Ltd., a NYSE-listed leading auto-backed financing solution provider in China. Prior to Weidai Ltd., Mr. Li served as an investment director and later an executive director of Vision Knight Capital, or VKC, a private equity fund focusing on China’s internet-driven sectors. Prior to VKC, Mr. Li worked at Morgan Stanley Asia Ltd. Mr. Li attended University of Oxford from 2004 to 2008 and received a four-year Master of Physics degree. Mr. Li is a Chartered Financial Analyst.

Dr. Zhihong (Joe) Zhang has served as our director since June 2023. Dr.Zhang joined us as chief technology officer in March 2016. Prior to joining us, Dr. Zhang was a staff scientist of Illumina, Inc., and a senior fellow of Howard Hughes Medical Institute and University of Washington. He obtained a bachelor’s and master’s degree in biochemistry and molecular biology from Fudan University in 1997 and 2000, and a Ph.D. degree in molecular genetics and microbiology from Duke University in 2005.