
Beijing Leixin Construction Engineering Co., Ltd.

Shanghai Longking Environmental Protection Co. Ltd.

Shandong Qilu Ethylene Chemicals Co. Ltd.Shandong Sheng, China

Meiko Construction Co., Ltd.Nagano-ken, Japan

HBIS Resources Co., Ltd.Hebei Sheng, China

Hysytech SRLPiemonte, Italy

Chengdu Drainage Co., Ltd.Sichuan Sheng, China

Berntsen International, Inc.Wisconsin, United States

Escorts Kubota Ltd.Haryana, India

Wuhan Kaidi Electric Power Environmental Protection Co., Ltd.Hubei Sheng, China

California Expanded Metal Products Co.California, United States

Beijing Zizhuhui Construction Services Co., Ltd.