An integrated nitrous oxide & industrial gas producer in Hunan, China

Hunan Heyun Gas Co., Ltd. is a fully licensed Chinese producer of nitrous oxide (N₂O) and industrial gases, integrating in-house production, cylinder filling, and statutory inspection. We supply oxygen, carbon dioxide, argon, nitrogen and more to industrial, food-grade and export buyers worldwide.

From in-house gas production and cryogenic storage to certified cylinder filling and statutory equipment inspection, every stage runs under our own licenses — giving overseas buyers a single, accountable source.

Established
2021
Registered Capital
CNY 8.88 million
Legal Representative
Wang Huajiang
Location
Zixing, Chenzhou, Hunan, China

Production, storage & filling

Cryogenic liquid storage tanks, automated filling stations and in-house cylinder inspection support consistent quality and volume.

Cryogenic liquid storage tanks (LN₂O / LO₂ / LCO₂ / LAr)
Cryogenic liquid storage tanks (LN₂O / LO₂ / LCO₂ / LAr)
Stainless-steel filling equipment
Stainless-steel filling equipment
Electronic weighing filling stations
Electronic weighing filling stations

What makes Heyun a safe choice

Integrated Production

In-house manufacturing, cylinder filling and inspection under one roof — full control over quality and supply.

Fully Licensed

Hazardous Chemical Business License, Cylinder Filling License and Special Equipment Inspection accreditation — verified compliance.

Export Ready

Import & export rights with UN-classified hazardous-goods documentation for smooth international shipping.

Broad Gas Range

Nitrous oxide, oxygen, carbon dioxide, argon, nitrogen and more — compressed and cryogenic liquid forms.