Construcciones Mecanicas Maer SASpain
Central Iron & Steel Research InstituteBeijing, China
China Iron & Steel Research Institute Group
Fangda Special Steel Technology Co. Ltd.
Outotec Pty Ltd.Australia
Xi'an Shaangu Power Co. Ltd.Shaanxi Sheng, China
Dango & Dienenthal Maschinenbau GmbH
Shuangdun Environment Technology Co. Ltd.Jiangsu Sheng, China
China Iron & Steel Research Institute Group
Wolfram Bergbau und Hütten GmbH NFG KGSteiermark, Austria
Fangda Special Steel Technology Co. Ltd.
Tangshan Guoliang Special Refractory Co. Ltd.Hebei Sheng, China