Sinopec Marketing Co., Ltd. Madianhe Gas Station

PetroChina Southwest Research & Design Institute of Chemical Industry Co., Ltd. (Shanxi Yuwang Coal Gasification Co., Ltd.)

Meishan Jinhong Electronic Materials Co., Ltd.

Messer Special Gases (Meishan) Co., Ltd.

Shanghai Huaxi Chemical Technology Co., Ltd. (Chengdu Han Zun Energy Co., Ltd.)

Jiangsu Guofu Hydrogen Energy Technology and Equipment Co., Ltd. (Pixian District, Chengdu City, Sichuan Province)

Sichuan Zhiyan Technology Co., Ltd.

Sichuan RunTai Special Gases Co., Ltd.

Simco Asia Gas Systems Chengdu Co., Ltd.

Sichuan Dakete Energy Technology Co., Ltd.

Chengdu Huaxi Chemical Technology Co., Ltd.