ST. JAMES PARISH, La. –The investment includes construction of a new air separation unit in St. James Parish, which will be located at the existing Koch Methanol facility, along with expanded pipeline infrastructure running throughout the Mississippi River corridor. These upgrades will supply critical industrial gases — including oxygen, nitrogen and argon — required for steelmaking at the Hyundai-POSCO Louisiana site, while also increasing efficiency and capacity across Air Liquide’s existing operations in the region.
Gov. Jeff Landry said the project reflects Louisiana’s continued ability to attract major global manufacturers and reinforces the state’s position as a competitive destination for industrial investment. Air Liquide executive Matthieu Giard said the company’s advanced technologies and established infrastructure network will play a key role in supporting lower-emission steel production and long-term industrial sustainability.
Air Liquide has maintained a strong presence in Louisiana for more than six decades and has invested over $470 million statewide in recent years. The company operates more than 35 facilities, employs over 500 workers and manages a 500-mile pipeline system that supports a range of industries including energy, chemicals and manufacturing. This latest expansion builds on that footprint and is expected to further integrate the company into Louisiana’s evolving industrial ecosystem.
Susan B. Bourgeois said large-scale projects like this continue to generate demand for suppliers, contractors and service providers across the state, creating economic opportunities that extend beyond a single facility. Local officials, including Pete Dufresne, highlighted the parish’s strategic location, access to natural resources and established infrastructure as key advantages for industrial development.
Michael Hecht added that the expansion underscores the growing importance of the region in the global economy, particularly as industries shift toward cleaner and more advanced manufacturing processes. The project is also expected to participate in Louisiana’s Industrial Tax Exemption Program, further supporting its long-term viability and economic impact. Commercial operations are currently anticipated to begin in 2028.