Changxun Sun

Chief Executive Officer

Mr. Changxun Sun is our founder 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

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

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.