Liu Yinhong: Male, born in June, 1977, 10: China nationality, without permanent residency abroad, party member, International Economic Law, University of Sheffield, UK&; Master of European Union Law, practicing lawyer in China. He used to be a lawyer of Beijing King & Wood Law Firm Shenzhen Branch. He is currently a member of the management Committee of Beijing Jincheng Tongda Law Firm, a senior partner and the director of Shenzhen Branch; Independent directors of China Resources Yuanda Fund Management Co., Ltd. and Yan 'ao Electric Co., Ltd.; The directors of Hubei International Trade Building Group Co., Ltd. and Yichang International Trade Center City Real Estate Co., Ltd. passed the training for senior managers of listed companies organized by Shenzhen Stock Exchange and obtained the qualification certificates of independent directors recognized by Shenzhen Stock Exchange. Independent director of Shenzhen Yike Acousto-optic Technology Co., Ltd., independent director of Sansheng Wisdom Education Technology Co., Ltd., supervisor of Shenzhen Nantian Information Technology Co., Ltd., and currently independent director of the company. On June 30, 2020, he served as an independent director of Shanghai Junshan Surface Technology Engineering Co., Ltd.