Plus-Plus A/S
Shandong Huatai Light Source Co. Ltd.
Jiangxi Tieshanlong Tungsten Industry Co. Ltd.
Quickutz, Inc.
Qingdao Haier Parts Co., Ltd.Shandong Sheng, China
Techfields Inc
Daesang S T Co. Ltd.
Guizhou Aerospace Precision Manufacturing Co., Ltd.Guizhou Sheng, China
Tecnoma SA
Chaohu Lihua Ceramics Co. Ltd.
Iolab Corp.
Shanxi Institute of Coal Chemistry, Chinese Academy of Sciences