Aerial view of Incheon International Airport's Terminal 2 / Courtesy of POSCO International

By Kim Jae-heun

POSCO International will supply 23,000 tons of steel for the expansion of Incheon International Airport's Terminal 2, the company said Tuesday.

POSCO and POSCO Steeleon plan to provide a steel curtain wall and roofing made of low-carbon materials until the expansion work is completed in 2024.

The firm collaborated with small and medium-sized companies that received POSCO Innovilt certification for their external panel processing technologies. The steelmaker gives Innovilt certification to products that are 100 percent made with POSCO steel and have passed the company's strict evaluation on the product's technology and marketability.

A curtain wall refers to an outer covering of a building in which the outer walls are non-structural. Most of the time, it is made mainly of aluminum and steel. Steel has better insulation and fire resistance than other materials such as aluminum. It is an eco-friendly material that generates less carbon and can be recycled.

POSCO's Innovilt-certified steel curtain wall is highly preferred at construction sites for its strength and structural performance. It can also provide wide views and openness. The company will use the country's largest amorphous product with a height of up to 22 meters for this project's curtain wall.

"The 80,000-square-meter roof of the passenger terminal will be made of high-performance materials like MosMac, a steel material with excellent corrosion resistance, and aluminum-fluorinated steel sheets made by POSCO Steeleon," a POSCO International official said.

Furthermore, POSCO International plans to supply PosMac non-flammable color steel plates to build the Inspire Resort Complex near Incheon International Airport on Yeongjong Island.