
Shinda (Tangshan) Creative Oil & Gas Equipment Co., Ltd.

Wuhan Sensor Electronics Co. Ltd.

Gaoyou Huaxing Petroleum Machinery Manufacturing Co. Ltd.

Danjiangkou Danjiang Auto Transmission Shaft Co. Ltd.

Beijing Huake HengRun Intelligent Technology Co., Ltd.

Tekunohama Co. Ltd.

Jiangsu Shanqi Electrical Appliances Co. Ltd.

Jae-hyung Lee

AVIC Guiyang Engine Design and Research Institute

Drilex Systems, Inc.

Project M Co. Ltd.

DOW CORNING ASIA LIMITED