
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