E-Comeleon Ltd.
Shenhua Zhungeer Energy Co., Ltd.
Suisaku Co., Ltd.
Beideli Energy Equipment (Jiangsu) Co., Ltd
Zhejiang Institute of Metrology
ENN New Energy (Beijing) Technology Co., Ltd.
Kunshan Zhonggu Precision Hardware Co., Ltd.
Shiyan Longgang Foundry Co., Ltd.
Ogaki Seiko Co., Ltd.
Guangzhou Tongsheng Copper Industrial Co. Ltd.
Yiyang Kangyi Machinery Development Co. Ltd.
Sebang Precision Co.