Dai Qiong: Male, master's degree. Certified public accountant, certified asset appraiser and tax agent. He used to be the chief accountant of Beijing Zhongchongxin Certified Public Accountants Co., Ltd. and an independent director of Zhongxin Technology Co., Ltd., and now he is the chief accountant of Beijing Zhongchongxin Certified Public Accountants Co., Ltd. and an independent director of Rong Sheng Real Estate Development Co., Ltd.