STP Corp.Delaware, United States
Paul Klckner GmbH
Beijing Ji Shi Kai Intelligent Technology Co., Ltd.Beijing Shi, China
Ertek, Inc.California, United States
Thorn Secure Science Ltd.United Kingdom
Xinjiang Railway Survey and Design Institute Co., Ltd.Xinjiang Uygur Zizhiqu, China
Yunnan Xiaguan Tuocha Group Co. Ltd.Yunnan Sheng, China
Qinghai Sixth Road and Bridge Construction Co., Ltd.
Wenzhou Changsheng Electric Power Co., Ltd.
DAESUN Co., Ltd.
Michael Pachleitner Group GmbH
Shenzhen Jiewang Fine Chemical Technology Co. Ltd.