Z&F Culture Construction Co., Ltd.Guangdong Sheng, China
Raymond Engineering, Inc.United States
Suzhou Zhongsheng Environmental Remediation Co., Ltd.Jiangsu Sheng, China
Kunming Railway Construction Company of China Railway No. 8
Guizhou Tianbao Ecology Co., Ltd.Guizhou Sheng, China
Henan Zhenhua Engineering Development Co., Ltd.Henan, China
Metal Forms CorporationWisconsin, United States
Huaneng Hainan Power Generation Ltd. Co.
CNPC Xibu Drilling Engineering Co., Ltd.
Black Diamond Group, Inc.
Viewpoint, Inc.Oregon, United States
Dacheng Kechuang Foundation Construction Co., Ltd.Hubei Sheng, China