Mr. Haiyun (Charlie) Cao is a director of the company. He was our chief financial officer from September 2014 to May 2021 and financial controller from February 2012 to September 2014. Prior to joining us, Mr. Cao served as a senior audit manager at PricewaterhouseCoopers from 2002 to 2012. Mr. Cao holds professional accounting qualifications, including AICPA and CICPA. He has a master’s degree in management science and engineering from Shanghai University of Finance and Economics in 2002 and a bachelor’s degree in accounting from Jiangxi University in 1999.