Air Liquide invests $350M+ in Louisiana to supply gases for Hyundai‑POSCO low‑carbon steel plant

Key highlights
  • Air Liquide will invest over 350 million USD to add an Air Separation Unit and extend pipeline infrastructure along the Mississippi.
  • The project will supply oxygen, nitrogen and argon to HYUNDAI‑POSCO Louisiana LLC's low‑carbon steel facility.
  • The ASU will be located at Koch Methanol's St. James facility and supports increased methanol production under an optimization project.
  • Gas supply is expected to commence in 2028.

Agreement and scope

Air Liquide signed a long-term contract to supply oxygen, nitrogen and argon to HYUNDAI‑POSCO Louisiana LLC for its new low‑carbon steel facility in Louisiana, ensuring continuous industrial gas volumes for the plant.

Investment and infrastructure

The company will invest over 350 million USD to add an Air Separation Unit at the Koch Methanol site in St. James Parish and to extend pipeline and network infrastructure along the Mississippi River; the ASU also supports increased methanol output under the Koch Methanol St. James Optimization Project.

Timeline and operational notes

Gas supply is expected to commence in 2028; the supply model is designed for scalability and integration with low‑carbon technologies and leverages existing pipeline infrastructure to provide operational flexibility for the facility.