- CEO
- Yeong-Wan Ji
- Sector
- Producer manufacturing
- Industry
- Metal fabrication
- Address
- Cheonan South Korea
- IPO Date
- Dec 15, 2025
- Business
- TMC Co., Ltd. is a South Korea-based company primarily engaged in the development, manufacture, and distribution of specialized industrial, marine, and telecommunication cables. The company operates through specialized business divisions providing a comprehensive range of products, including: marine and offshore cables, comprising flame-retardant, low-smoke zero-halogen (LSZH), fire-resistant power, control, instrumentation, and telecommunication cables engineered for commercial vessels, naval vessels, floating production storage and offloading (FPSO) units, floating liquefied natural gas (FLNG) facilities, and offshore oil and gas drilling platforms; optical fiber and communication cables, consisting of loose tube optical cables, ribbon fiber cables, armored telecommunication lines, and broadband infrastructure solutions; industrial and plant cables, featuring low- and medium-voltage power distribution cables, control wiring, and instrumentation lines for petrochemical facilities, power generation plants, and commercial infrastructure; rolling stock and transportation cables, comprising lightweight, fire-safe traction and control cabling systems designed for high-speed trains, railways, and subway networks; and specialty defense cables, including military-standard shipboard and tactical communications cabling. Operating as a core manufacturing subsidiary of Songhyun Holdings, the company serves leading domestic and multinational shipbuilders, engineering contractors, and infrastructure operators across the Asia-Pacific region, North America, Europe, and the Middle East. Recent company developments include the strategic expansion of fiber optic and communications cable exports to North American telecommunications and digital infrastructure markets, reinforced procurement agreements for high-value offshore energy installations and eco-friendly liquefied natural gas (LNG) vessel construction projects with major Korean shipbuilders, and ongoing investments in next-generation extreme-environment, high-temperature, and ultra-flame-retardant cable technologies. Founded in 1991 as Seojin Industry Co., Ltd. and renamed TMC Co., Ltd. in 2005, the company is headquartered in Cheonan-si, Chungcheongnam-do, South Korea, and is listed on the Korea Exchange under the ticker 217590.