• Changxun Sun

    Chairman of the board and Chief Executive Officer

    Mr. Changxun Sun is our founder and has served as the chairman of our board of directors and our chief executive officer since our inception. Prior to founding our company, Mr. Sun served as the chief engineer and vice president of research and development of Beijing Hisunsray Information Technology Co., Ltd. from August 2000 to August 2013. From July 1998 to August 2000, Mr. Sun served as a software engineer at the research and development center of PCI-Suntek Technology Co. Ltd. (SHEX: 600728). Mr. Sun received his bachelor’s degree in mathematics from Huazhong University of Science and Technology in 1998, and an MBA from Tsinghua University in 2009.

  • Yipeng Li

    Chief Financial Officer, Director

    Mr. Yipeng Li has served as our chief financial officer since May 2020. Mr. Li has also served as an independent director and chairman of audit committee of the board of Lizhi Inc. (Nasdaq: LIZI) since January 2020. Prior to joining us, Mr. Li served as the chief financial officer of Sunlands Technology Group (NYSE: STG) from September 2017 to April 2020. Mr. Li served as the chief financial officer of Alibaba Health Information Technology Limited (HKEx: 241), a subsidiary of Alibaba Group, from September 2015 to September 2017. Prior to that, he was the chief financial officer at Jiuxian.com, a leading online platform for alcohol offerings from March 2015 to August 2015. From June 2010 to February 2015, Mr. Li served as the vice president of iQIYI, Inc. (Nasdaq: IQ), in charge of its financial and legal department. Mr. Li received his bachelor’s degree in accounting from Simon Fraser University in 2002. Mr. Li is a member of Chinese Institution of Certified Public Accountants.

  • Xiegang Xiong

    Chief Product Officer, Chief Technology Officer, Director

    Mr. Xiegang Xiong has served as our chief product officer since November 2018 and our chief technology officer since May 2020. Prior to joining us, Mr. Xiong served as the chief technology officer of Avaya Greater China from April 2012 to October 2018. From May 2000 to March 2012, Mr. Xiong served as a product director at the UC&C product department of Cisco China. From April 1999 to April 2000, Mr. Xiong served as a system engineer manager of Lucent Technologies, Inc. Mr. Xiong received his bachelor’s degree in exploration engineering from Chengdu University of Technology in July 1992, and his master’s degree in exploration engineering from China University of Geosciences in July 1995.

  • Kui Zhou

    Director

    Mr. Kui Zhou has served as our director since June 2016. Mr. Zhou is a partner at Sequoia Capital China who has been focusing on early investments in technology, media, telecom and healthcare industries. Currently Mr. Zhou serves as a director of each of IngageApp, Pony AI, Dada Nexus, Eversec, Winona, Ju Shui Tan Technology and iRay Technology Company Limited. Prior to joining Sequoia in 2005, Mr. Zhou spent many years at Lenovo Group. He received his master’s degree in business administration from Tsinghua University in 2000.

  • Qingsheng Zheng

    Director

    Mr. Qingsheng Zheng has served as our director since February 2015. Mr. Zheng has served as a partner at Sequoia Capital China since October 2014, focusing on investments in consumer internet and enterprise. Prior to joining Sequoia, Mr. Zheng served as a partner and director of Trustbridge from 2007 to 2014. Mr. Zheng also worked for Shanda Interactive, BearingPoint, IBM and PwC from 1999 to 2007. Mr. Zheng received his bachelor’s degree in economics from Fudan University in 1999.

  • Ching Chiu

    Independent Director

    Mr. Ching Chiu has served as our director since November 2020. Mr. Chiu is the managing partner and co-founder of VMCapital, which mainly focuses on opportunities at growth stage in education and related industry, and he is responsible for fundraising, investment, post-investment and management of the fund. As one of the founding members of the strategic investment department of New Oriental Education & Technology Group, Mr. Chiu served as the general manager from 2015 to 2018 and led the company’s strategic development, mergers and acquisitions and strategic collaboration efforts, as well as maintained domestic and international strategic relations. Mr. Chiu has over a decade of in-depth experience in education investment, and led the investment of over 50 cases, with representative cases including Sunlands Technology Group (NYSE:STG) and Tarena International, Inc. (NASDAQ:TEDU). Prior to that, Mr. Chiu had worked at Ernst & Young and Merrill Lynch. Mr. Chiu holds a master’s degree in finance, and a bachelor’s degree in economics, both from Peking University’s School of Economics.

  • Cheng Luo

    Chief Executive Officer Assistant, Director

    Mr. Cheng Luo has served as our chief executive officer assistant since June 2015. Prior to joining us, Mr. Luo served various positions at Jinluo Group, Linksus Digiwork, Attention Communication Group and ZenithOptimedia, focusing on brand and public relations management. Mr. Luo received his bachelor degree in law from Peking University in June 2004.

  • Yunhao Liu

    Independent Director

    Mr. Yunhao Liu has served as the dean of the Global Innovation Exchange of Tsinghua University since August 2020. Mr. Liu mainly focuses on IoT, radio-frequency identification, cloud computing and big data in his research and has published a number of research papers and articles in professional journals. From February 2018 to July 2020, Mr. Liu served as an MSU Foundation professor and the chair of the Department of Computer Science and Engineering at Michigan State University. Mr. Liu served as a Chang Jiang professor of the School of Software at Tsinghua University from June 2013 to January 2018, the dean of the School of Software at Tsinghua University from June 2013 to June 2017, and a professor of the School of Information Technology at Tsinghua University from April 2011 to May 2013. Mr. Liu also served various positions including assistant professor, associate professor and postgraduate director of the Department of Computer Science at Hong Kong University of Science and Technology from July 2004 to March 2011. Mr. Liu received his bachelor's degree in automation from Tsinghua University in 1995, his master's degree from the Graduate School of Translation and Interpreting at Beijing Foreign Studies University in 1997, and his master's degree and Ph.D. from the Department of Computer Science and Engineering at Michigan State University in 2003 and 2004, respectively.

  • Ziguang Gao

    Independent Director

    Ziguang Gao has served as our independent director since May 2021. Mr. Gao has served various positions at Xiaomi Corporation (HKEx: 1810), including vice president, since February 2014. Prior to that, Mr. Gao served various positions at Tencent (HKEx: 700) from August 2004 to January 2014, including engineer, expert engineer and project manager, focusing on products including QQ, Soso, Tencent Weibo and WeSee. Mr. Gao received his bachelor’s degree in computer science and technology from Xi’an Jiaotong University in July 2004 and an MBA from Tsinghua University in July 2010.