Geumgang Metal Co. Ltd.
TauTaTis, Inc.
SEL Chemie BV
Markport Ltd.
Jingquan Lighting Technology Co., Ltd.
Liberty Research Co., Inc.
Carbide International Co. Ltd.
Shanghai Bupin Electronic Technology Co., Ltd.
Danyang Fengchuang Machinery Manufacturing Co., Ltd.
Shenzhen Minbang Optoelectronics Co Ltd.
Regent GmbH
Jiangsu JiCui Functional Materials Research Institute Co., Ltd.