
Cheil Engineering Co. Ltd.South Korea

Hitachi Plant Construction & Services Co., Ltd.Tokyo-to, Japan

Takamatsu Corp.Osaka-fu, Japan

Zhongshi Chemical Construction Co., Ltd.Hebei Sheng, China

Wuhan Jinzhong PetroChemical Engineering Co., Ltd

Industrial Resources, Inc.Washington, United States

Hebei Haichuan Energy Technology Co., Ltd.

CXT, Inc.Pennsylvania, United States

Cumberland Engineering Pvt Ltd.Delhi, India

China Railway Eighteen Bureau Group Co., Ltd.Tianjin Shi, China

CHC Resources Corp.Taiwan Province, China

Betonrossi SpAPiacenza, Italy