Founded in 1977, Yoosung T&S grew into a comprehensive steel-focused logistics company after signing a road transport contract with POSCO in 1986.
The company handles road transport, cargo handling, rail transport, forwarding and consulting, and operates around 400 owned and managed vehicles, giving it the number one position domestically in rail transport of steel products.
Its main clients are large domestic steelmakers including POSCO and Hyundai Steel, with multi-year logistics contracts underpinning stable business relationships.
Its business is divided into transport (heavy-cargo transport and logistics consulting), steel trading (sale of steel products), and distribution (formerly highway rest area and gas station operation), with the transport segment accounting for the majority of standalone revenue per the 2025 annual report.
The company had long operated numerous rest facilities leased from Korea Expressway Corporation, but the termination of that lease sharply shrank the distribution segment's revenue base.
Consolidated subsidiaries include Apple D&I (50.82% stake), which runs the "LOGIN" convenience store chain, Yoosung Steel (100%), which handles steel product distribution, and Donghwa Industrial (100%), which conducts port cargo handling.
The largest shareholder is Hanil Asset Management & Investment, affiliated with Seohee Construction, placing the company within the Seohee corporate group. Competitively, the trend of large shippers building in-house logistics networks has intensified competition for third-party logistics providers like Yoosung T&S.