Air Liquide Spatial Guyane SA

Franceairliquide.com

Air Liquide Spatial Guyane SA (ALSG) is a subsidiary of the Air Liquide group based in Kourou, French Guiana. It produces and supplies industrial gases and cryogenic equipment primarily for the space industry at Europe’s Spaceport.

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The company has supported Ariane launcher programs since the 1970s, delivering liquid hydrogen, liquid oxygen, helium, nitrogen, and related fluids for propulsion and ground operations across hundreds of flights.

ALSG recently renewed contracts with ArianeGroup to provide these supplies and equipment for the Ariane 6 program, including through its operational phase and production ramp-up.

Also known as Air Liquide Spatial Guyane and Air Liquide Spatial Guyane S.A..

Projects ALSG is involved in

None yet. When a new project in the record names ALSG as owner, partner or investor, it shows here.

ALSG in chemical industry news

11 June 2026
Air Liquide and ArianeGroup renew contracts to support Ariane 6 operations

Secures cryogenic equipment through flight 42 and a renewed propellant and fluids supply to back Ariane 6 industrial ramp-up.

11 June 2026
Air Liquide and ArianeGroup renew industrial partnership with two Ariane 6 contracts

Contracts cover cryogenic manufacturing equipment through flight 42 and a three‑year supply of propellants and ground gases for Ariane 6 operations.