Chongqing Guanqi Building Materials Co., Ltd.

Chongqing Baomao Materials Co., Ltd.

Chongqing Mingyuan Materials Co., Ltd.

Chongqing Lening Tubing Co., Ltd. (Jinke Branch)

Chongqing Yuanhai Materials Co., Ltd. (Lvyun Steel Material Market A Unit Branch)

Chongqing Shuangheng Company