Board of Directors

Mr. Bangxin Zhang
Chairman of Board of Directors and Chief Executive Officer

Mr. Bangxin Zhang is one of our founders and has served as our chairman or director and chief executive officer since our inception. Mr. Zhang provides vision, overall management, and strategic decision-making relating to marketing, investment planning, and corporate development. Mr. Zhang received his bachelor's degree in Life Sciences from Sichuan University in July 2002, was in the postgraduate program of the Life Science School of Peking University from September 2002 to April 2007, and received an EMBA degree from China Europe International Business School in September 2009.

Mr. Yunfeng Bai
Director
Mr. Yunfeng Bai served as our chairman from January 2020 to April 2022. He served as our president from October 2016 to December 2021. From April 2011 to October 2016, Mr. Bai was our senior vice president and led our Small Class business throughout China. Prior to this, Mr. Bai served as our vice president between June 2008 and April 2011, and in this capacity he oversaw our personalized premium services. Mr. Bai founded our high school division in 2005 and was the director of our Beijing operations from June 2006 to May 2008. Mr. Bai received his bachelor’s degree in engineering automation from Beijing University of Aeronautics and Astronautics in July 2005. He attended the CEO course of Guanghua Management School at Peking University between 2008 and 2009 and graduated from the EMBA program of China Europe International Business School in 2012.
Janet Yan Feng
Audit Committee Chair, Independent Director

Ms. Janet Yan Feng currently serves as a senior vice president and the chief executive officer of the financial services business unit of Trip.com Group Limited (Nasdaq: TCOM), where she has held a number of general management and finance positions since 2004. Prior to that, Ms. Feng served as a senior audit manager at PricewaterhouseCoopers Zhong Tian LLP from 2000 to 2004. Ms. Feng received her MBA degree in 2008 and bachelor’s degree in 2000 from Shanghai Jiao Tong University and is currently pursuing an EMBA degree at Tsinghua University PBC School of Finance.

Dr. Weiru Chen
Compensation Committee Chair, Independent Director
Dr. Weiru Chen has served as our independent director since June 2015. Mr. Chen is associate professor of strategy at China Europe International Business School (“CEIBS”). Prior to joining CEIBS, he served as a faculty teaching strategy at INSEAD. Mr. Chen’s research is centered on firms’ technological search behaviors, strategic dynamics, and cross-border business model transfer. Mr. Chen received a Ph.D. in Management from Purdue University in 2003.
Dr. Kaifu Zhang
Nominating & Corporate Governance Committee Chair, Independent Director
Dr. Kaifu Zhang has served as our independent director since October 2016. Dr. Zhang is assistant professor of Marketing and the Xerox Junior Chair at the Tepper School of Business, Carnegie Mellon University (“CMU”). Prior to joining CMU, he was assistant professor at Cheung Kong Graduate Schools of Business in China. His research interests include the economics of multi-sided markets, business model design for online platforms, and the use of big data and machine learning in econometrics. He has consulted for and offered executive training at a number of tech firms in Europe, US and China. He holds a Ph.D. in Management from INSEAD (France) and a BE in Computer Science from Tsinghua University.
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