KPF was founded in 1963 as Korea Bolt and changed its name after expanding into automotive parts in 2006, establishing itself as a specialist in industrial fasteners and automotive forged parts.
Its business structure spans three pillars: a fastener segment producing bolts and nuts for construction, plant, and wind power applications; an automotive forged parts segment covering bearing components and gears; and a marine, offshore, and optical cable segment run through subsidiary TMC.
According to previously disclosed data, first-half 2024 revenue was split roughly 26% fasteners, 25% automotive parts, and 49% marine cable, meaning the cable segment accounted for nearly half of total sales.
The automotive parts segment supplies global bearing makers including SKF, ThyssenKrupp, and NTN, earning recognition for quality and technology, while its China subsidiary was selected as a third-generation bearing parts supplier for Europe's NTN-SNR.
The fastener segment has supplied large wind turbine makers such as GE in the United States and Enercon in Germany, and is pursuing expansion in large offshore wind bolts, including a joint development agreement with POSCO on wind tower bolt demand.
Subsidiary TMC holds roughly a 45% share of the domestic marine cable market and counts HD Hyundai, Hanwha Ocean, and Samsung Heavy Industries among its major shipbuilding customers, while its optical cable supplies about 90% of the Saeul Unit 3 and 4 nuclear plants, with further supply planned for Shin-Hanul Units 3 and 4.
Even after TMC's IPO in December 2025, KPF remains its controlling shareholder with roughly a 47% stake, keeping it as a consolidated subsidiary. At the group level, holding company Songhyun Holdings is the largest shareholder with a 34.47% stake, and the group also includes robotics reducer maker SBB Tech.
KPF operates a global production network with subsidiaries in Vietnam, the United States, and China, with the Vietnam plant focused on cost-competitive standard fasteners and the headquarters plant handling higher value-added products.