POSCO International began as the trading division spun off from Daewoo in 2000 and now operates as a diversified company combining resource development, trading and infrastructure operations, with trading still accounting for the bulk of revenue.
The company spans resource development, production and processing, and infrastructure development and operation, running trading, energy and investment businesses through roughly 80 overseas offices worldwide.
Its January 2023 merger with POSCO Energy created an integrated LNG value chain covering upstream, midstream and downstream.
Profit is broadly split between energy and the materials (steel and mobility) and food businesses; on its 2025 results call the company said profit was structured around two pillars, 54 percent energy and 46 percent materials.
Energy upstream rests on the offshore Myanmar gas field and Senex Energy in Australia, and the company said it advanced Phase 4 development in Myanmar and completed a threefold expansion framework at Senex during 2025.
In Myanmar it discovered the Shwe, Shwe Phyu and Mya fields and has produced commercially since June 2013, at roughly 500 million cubic feet per day.
The Gwangyang LNG terminal, the core midstream asset, has operated since 2005 as Korea's first private LNG base, unloading, storing and regasifying imported LNG for the Gwangyang steelworks, nearby power plants and customers connected through the national gas trunk line.
The materials business centers on steel trading and drive motor cores for electric vehicles, and the company said it completed production bases in Mexico and Poland and laid out a roadmap for 7.5 million units of capacity by 2030.
In food, it acquired a controlling stake in Indonesian listed company Sampoerna Agro, with investment tied to palm value chain expansion estimated at about 1.3 trillion won.
Domestic peers such as LX International, Hyundai Corporation and SK Networks and Japanese trading houses are the usual comparisons, but owning both operated gas fields and a private LNG terminal sets this structure apart among Korean trading companies.