Mr. Chen Kesheng: Born in 1976, graduate degree. He used to be an engineer and manager of Colin Electronics Co., Ltd.; Manager of R&D department of Shenzhen step technology co., ltd.; On October 20, 2005-20 10/0 served as manager of R&D department of vibrating mirror and director of motion control center of our company; Vice President of Institute of Standard Module Technology; He is currently the deputy general manager of our company and the general manager of optical fiber marking product line.