China Communications Group Co., Ltd.
China Metallurgical Science and Industry Group Corporation
Shanghai Baosteel engineering construction company
China Railway No.25 Bureau Group Co., Ltd.
Jilin province yijian engineering co., ltd
Kashi Construction Engineering (Group) Co., Ltd.
Shanghai construction airport road engineering co., ltd.
Beijing Construction Engineering Group Co., Ltd.
China Railway Second Bureau No.4 Engineering Co., Ltd.
Shanxi province first construction engineering company
Hebei construction group co., ltd
Guangsha construction group co., ltd
Shanghai first construction co., ltd
Zhejiang construction engineering group co., ltd
Hu' nan province constructional engineering group company
China Railway Construction Engineering Group Engineering Co., Ltd.
China Construction First Division (Group) Co., Ltd.
Hu' nan province construction decoration corporation