National 24-hour telephone service 
4001546688

Hotline for the liquid gas sale service 
+86-13804914981    Mr Han

+86-18132175646    Mr Jian

Haicheng Sihai Gas Co., Ltd.  
No. 5 park road，Ganwangzhen industrial park，Haicheng，Liaoning province，China
Tel：+86--412-3871280 
Fax：+86-412-3871260 
Email：hcsshqt@163.com

Qinhuangdao Sihai Gas Co., Ltd.

No. 3 zhuhai road，Economic and technological development zone (east)，qinhuangdao，hebei province，China
Tel：+86-335-5183836 
Fax：+86-335-5187188 
Email：qhdsshqt@163.com