What is Yin's title? Director Grinda.

Yin: Male, born in September, 1972, graduated from Zhengzhou Institute of Technology with a bachelor's degree and is a senior engineer. Member of Electronic Chemicals Working Group of National Standardization Committee, member of National Waste Chemical Disposal Standardization Technical Committee, and expert of Zhejiang Fluorine Material Industry Technology Innovation Alliance. 1From August, 1994 to February, 2000, he served as the deputy manager of the production department of Hangzhou Electrochemical Group Corporation. 65438+From February 2000 to March 2003, he served as deputy manager of the production department of Electrochemical Group; From April to 20, 200317, he served as deputy general manager of Grinda Co., Ltd.; 2065438+Since August 2007, he has served as the director and deputy general manager of the company.