Which company is Du from? Digital certified independent director

Du: Female, born in 1975, China nationality, with no permanent residence abroad. Doctor of Management, Department of Accounting, Business School, Renmin University of China, postdoctoral fellow, Guanghua School of Management, Peking University. He has successively obtained the qualification certificates of China Certified Public Accountant, American Certified Internal Auditor and American Certified Management Accountant. He is currently an associate professor, director of the accounting department of beijing language and culture university Business School, director of MPAcc Center, independent director of Beijing Caplin Optoelectronic Technology Co., Ltd., independent director of Beijing Shen Dao Technology Co., Ltd. and independent director of Guanxin Software Co., Ltd.