Mr. Kuang Tongchun:1born in February 1964, China nationality, with no permanent residency abroad, party member, CPC, Ph.D. in materials processing engineering from South China University of Technology, was a professor in the Department of Materials Science of Guangdong University of Technology (65438+February 2002), director of the Experimental Research Center of South China University of Technology (June 2000-September 2004) and director of the Analysis and Testing Center of South China University of Technology. Concurrently director of Guangdong Materials Research Society (from 2001); Member of Guangdong X-ray Diffraction Society (since1999); Member of Guangdong Institute of Physical and Chemical Inspection (since1997); Expert in exchange evaluation of National Natural Science Foundation (2005-present); Technical expert of Guangzhou large-scale scientific instrument cooperation network (2006-present); Member of the Editorial Board of Cemented Carbide (since 2006); Failure Analysis Expert, Failure Analysis Branch of China Mechanical Engineering Society (2007-present). He has presided over or mainly participated in more than 20 national natural SCIence foundation, Guangdong natural science foundation and Guangdong key science and technology projects, applied for more than one invention patent 10, and published more than one paper 100 in journals and academic conferences at home and abroad in recent years, of which more than 80 papers were included by sci and EI. 2065438+Since July 2005, he has been an independent director of the company.