*Founded in 1966, 24 employees.
*Began to manufacture SCR in 1974. ----Xiangfan Instrument Component Factory
*1973--1980, more than 100 engineers came from everywhere in China. 400 employees.
*A semiconductor devices manufacturer specified by Chinese Mechanical Ministry.
*1998, renamed as YIYUAN Power Electronics Co., Ltd.
*2003, the company was reformed, privately owned.
Xiangfan TECH Semiconductors Co., Ltd
*2008, the company becomes a joint-stock company.
Hubei TECH Semiconductors Co., Ltd
*2014, The company changed its English name.
TECH Semiconductors Co., Ltd