Simin Ren has served as the chairperson of the board and chief executive officer since August 2026 and as director since November 2023. Ms. Ren served as our co-chief executive officer from January 2025 to August 2026, and vice president of the Company from November 2023 to January 2025. Ms. Ren joined the Company in June 2021 and served as vice president of the Company's PRC entities. Ms. Ren received her bachelor's degree from the University of Manchester in June 2016 and her master's degree from the University of Warwick in November 2017.
Chao Cheng has served as our chief operational officer since May 2014, responsible for our operations and content management. Mr. Cheng served as the operational specialist of Shenzhen Zhangmenren Network Technology Co., Ltd. from June 2010 to April 2011 and served as the project operational manager of Hangzhou Bianfeng Network Technology Co., Ltd. from April 2011 to June 2013. Mr. Cheng graduated from China University of Geosciences (Hankou Branch) in June 2012 with a major in computer science. Mr. Cheng completed the courses for the EMBA program of Guanghua School of Management at Peking University in June 2018 and the Future Technology program of Economics and Management School at Tsinghua University in November 2024. Mr. Cheng also qualified as the Cisco Certified Internet Expert in August 2010.
Mingming Su has served as our chief strategy officer since November 2015 and our director since October 2016. Mr. Su oversees investor relations, investment and financing. Mr. Su served as the investment analyst of Shanda Computer (Shanghai) Co., Ltd. from March 2010 to March 2011, the investment manager of Hangzhou Bianfeng Network Technology Co., Ltd. from March 2011 to August 2012 and the vice president of investment at Shenzhen Qingsong Investment Management Partnership (Limited Partnership) from August 2012 to November 2015. Mr. Su has also served as the independent director of Ebang International Holdings Inc. since November 2021. Mr. Su obtained his bachelor’s degree majoring in library science and minoring in English from Anhui University in July 2007. Mr. Su also obtained his master of management majoring in library science from Chinese Academy of Sciences in March 2010.
Hao Cao has served as our vice president since November 2015 and as our director since October 2016. Mr. Cao is in charge of the internal control, corporate finance, and matters related to the financial management of our company. Mr. Cao served as the audit manager of Deloitte from July 2004 to January 2011, the chief financial officer of Firstextile AG from February 2011 to June 2015. Mr. Cao obtained his bachelor of science majoring in geology from China University of Geosciences in June 2001, and his master degree majoring in finance from Fudan University in June 2004. He is also qualified as a Certified Public Accountants in China and is a CFA Charterholder.
Jie Gao joined the Company in May 2014 as one of its first employees and has served as Investment Director since June 2018. Before that, Mr. Gao served as Assistant to the General Manager from May 2014 to October 2017, and as Investment Manager from October 2017 to June 2018. Mr. Gao received his bachelor’s degree from Hubei Business College in 2013.