
SUMCO

SUMCO
In July 1999, Silicon United Manufacturing Co., Ltd., a 300mm silicon wafer development and manufacturing company, was jointly invested by Sumitomo Metal Industry Co., Ltd., Mitsubishi Materials Co., Ltd. In 2002, Silicon United Manufacturing Co., Ltd. took over the silicon business from Sumitomo Metal Industry Co., Ltd., and merged with Mitsubishi Materials Silicon Co., Ltd., and renamed Mitsubishi Sumitomo Silicon Co., Ltd. In 2005, it was renamed Shenggao Group.