Lei Sun has been our chairman of the board of directors since November 2017. Mr. Sun has over fifteen years of experience in financial services industry and is a recipient of numerous prestigious national awards. Prior to founding our company in August 2006, Mr. Sun was a senior manager at the head office of China Minsheng Bank (HKEX: 1988) from September 2005 to August 2006. From August 2005 to September 2005, Mr. Sun served as a department head with Digital China Group Co., Ltd. (SZ: 000034) in charge of the development of internet financing products. Prior to that, Mr. Sun served as a director of banking service department with Taihe Chengxin Investment Co., Ltd. from August 2004. From March 2003 to August 2004, Mr. Sun served as the department head of financial services department of Hi Sun Technology (China) Limited (HKEX: 0818). Mr. Sun received his bachelor's degree in finance and EMBA from Peking University in 2003 and 2013, respectively.
Lei Liu is our co-founder and has been serving as director since 2019, and our chief risk officer since June 2020 and our chief executive officer since August 2020. Prior to founding our business, Mr. Liu worked as the senior product manager of the retail banking department of the head office of China Minsheng Bank (HKEX: 1988) from 2006 through 2007, responsible for developing personal loan products. Prior to that, Mr. Liu served as a supervisor of personal finance business with the Shenzhen branch of China Minsheng Bank, responsible for business development and product design since 2003. Mr. Liu received his bachelor's degree in economics from Shanghai University of Finance and Economics in 2003, and his EMBA degree from Peking University in 2018.
Ms. Li Zhang has served as Director of Internal Audit and Internal Control of the Company since 2019. Before joining us, Ms. Zhang served as Chief Financial Officer of Agile Fund, a venture capital firm focusing on the technology, media and telecom, sports, fitness and wellness-related sectors in China, from 2018 to 2019. Prior to that time, Ms. Zhang served as Director of Risk and Compliance of USANA Health Sciences, Inc. and was in charge of audit and compliance matters relating the company’s operation in China from 2015 to 2018. Ms. Zhang also worked for PricewaterhouseCoopers as a senior manage from 2005 to 2015. Ms. Zhang received her bachelor degree in Computer Application Technology from North University of China in 1999 and holds an M.B.A from Tingshua University.