ABB
Nidec Corporation
Sungrow Power Supply Co.Ltd.
Johnson Controls
Parker Hannifin
Delta Electronics Inc.
HNAC Technology Co. Ltd.
Destin Power Inc.
Jiangsu Linyang Energy Co. Ltd.
China Greatwall Technology Group Co. Ltd.
Dynapower Company LLC
Shanghai Sermatec Energy Technology Co. ltd.
Shenzhen Kstar ScienceandTechnology Co.Ltd.
Soaring
TBEA
Shenzhen Sinexcel Electric Co.Ltd.