Durr Production Systems, Inc.
Dongyeon Design Co. Ltd.
Planet Int Co. Ltd.
Xenith Track Co Ltd
Fuzhou Qiangli Pipeline Equipment Co., Ltd.
State Grid Jilin Electric Power Co., Ltd. Jilin Power Supply Company
Creating Nano Technologies, Inc.
Shaoxing Huanxin Pipe Industry Co.,Ltd.
Rokenbok Toy Co.
Shanghai Yifei Gas Equipment Technology Co., Ltd.
Tokiwa Kagaku Kikai Co. Ltd.
TFK Co., Ltd.