Taihan Fiberoptics

Taihan Fiberoptics makes optical fiber and optical cable, the glass strands and bundled lines that carry data and power signals across telecommunications and electricity networks.

Its products are used by telecom operators and power utilities, and it supplies customers both in South Korea and internationally. Listed on KOSDAQ, South Korea's tech and small-cap exchange, the company describes itself as the only domestic producer with a fully integrated, end-to-end optical fiber and cable manufacturing system. It is also expanding into specialty optical products and advanced materials and components.