Samwha Electronics

Samwha Electronics makes ferrite cores, small magnetic components that control and convert electrical power in devices ranging from electric vehicles to industrial machinery.

Its customers span automakers and their suppliers (for on-board chargers, DC-DC converters, noise filters, and wireless charging systems in hybrid and electric vehicles), as well as makers of semiconductor equipment, medical devices, solar inverters, and communications infrastructure. Listed on KOSPI, Korea's main stock exchange, the company's core business is ferrite components, and it is actively broadening that product range into higher-frequency, lower-loss materials aimed at the electric-vehicle supply chain.