Lian Yi: Male, born in 1963, China nationality, without permanent residency abroad, bachelor degree. He has served as deputy director of the Department of Economic Management of Guilin Institute of Technology, dean of the Business School of Guilin University of Technology, general manager of Gomez (China) Guilin Company, director and general manager of Duff Group. At present, he is also the vice president of China University Marketing Research Association, a member of the expert committee of Guilin Philosophy and Social Science Development Planning Leading Group, a director of Duff Group and the president of Duff College. At present, he is a Rhine biology professor, master tutor and independent director of Guilin University of Technology Business School. Has obtained the qualification certificate of independent director recognized by China Securities Regulatory Commission.