Air Liquide Engineering & Construction will design and build an air separation unit (ASU) in South Korea as part of a new contract with steel producer POSCO.

To be installed at POSCO’s Pohang site, the ASU will produce oxygen, nitrogen and argon and have a production capacity of 1,700 tonnes per day of oxygen.

The oxygen and argon produced will be used to transform iron into high quality steel and enable POSCO to improve efficiency of the production process, Air Liquide explained in a statement.

This new ASU, replacing two existing units on the Pohang site, will be designed and built using Air Liquide’s best-in-class cryogenics technologies, thereby maximising energy efficiency and reducing environmental footprint.

David Maloney, Vice-President and Chairman of Air Liquide Engineering & Construction, stated, “We are proud to continue our partnership with POSCO and contribute to POSCO’s development for more than 30 years.”

POSCO, as the largest integrated producer in South Korea, delivers 41 million tons of crude steel per year. Founded in 1968 and privatised in 2000, Posco has led the Korean steel industry for more than four decades.

Air Liquide has been working with POSCO for more than 30 years and has supplied 20 ASUs to POSCO’s Pohang and Gwangyang sites.