The main products of Liaoning Daewoo Gas Co., Ltd.: cryogenic liquid storage tanks, liquid oxygen storage tanks, liquid nitrogen storage tanks, liquid argon storage tanks, carbon dioxide storage tanks, LNG storage tanks and vaporizers. Address: Dayushu, Dongsi Management District, Haicheng, Anshan, Liaoning. Established: May 2006-18.

Main products of Ou Ke Energy Technology (Tianjin) Co., Ltd.: decompression equipment, LNG skid-mounted equipment, LNG filling stations and CNG filling stations. Address: Phase II, No.1 Saida North Road 12, Xiqing District, Tianjin. Established on 20 10-08-09.

The main products of Shandong Naijie Environmental Protection Technology Co., Ltd.: LNG equipment, CNG equipment, gas pressure regulating box, hydrogen storage bottle and vehicle-mounted hydrogen supply system. Address: Baicheng Industrial Park, Baicheng Town, gaomi city, Weifang, Shandong.

The main products of Chengdu Cryogenic Technology Co., Ltd.: LNG filling station, LNG filling machine, LNG peak shaving station, natural gas filling station and LNG gasification station. Address: No.355, Gangbei 4th Road, Chengdu Modern Industrial Port, Pixian, Chengdu. Established: 20 10- 10-08.

Liangshan xinghao second-hand equipment purchase and sale co., ltd. main products: second-hand chemical equipment, pharmaceutical equipment. Address: Liulijing Village, Quanpu Town, Liangshan County, Jining City, Shandong Province. Established: 2020-0 1- 14.