China Railway No.1 Bureau Group 3 rd Engineering Co., Ltd.
China Railway No.1 Bureau Group No.4 Engineering Co., Ltd.
China Railway No.1 Bureau Group No.5 Engineering Co., Ltd.
China Railway No.1 Bureau Electric Service Engineering Co., Ltd.
China Railway No.1 Bureau Yun Xin Engineering Company
China Railway No.1 Bureau Municipal Environmental Protection Engineering Co., Ltd.
China Railway No.1 Bureau Group Urban Rail Transit Engineering Co., Ltd.
China Railway No.1 Bureau Construction and Installation Engineering Co., Ltd.
China Railway No.1 Bureau Bridge Engineering Co., Ltd.
China Railway No.1 Bureau Materials Industry & Trade Co., Ltd.
China railway No.1 bureau constructional engineering machinery co., ltd
Xi 'an Railway Engineering Staff University
Lanzhou railway skilled workers school
China Railway No.1 Bureau Group Xiamen Branch
China Railway No.1 Bureau Group Guangzhou Branch
China Railway No.1 Bureau Group Tianjin Branch
China Railway No.1 Bureau Group Chongqing Branch
China Railway No.1 Bureau Group Shanghai Branch
China Railway No.1 Bureau Group Beijing Branch
China Railway No.1 Bureau Group Overseas Branch