Sunny Electronics

Sunny Electronics makes quartz crystal oscillators, tiny components that generate or filter precise frequencies and are found in virtually every electronic device that uses a radio signal or clock timing.

The company supplies these components to major Korean consumer-electronics manufacturers, reaching their production facilities both inside Korea and abroad. Listed on KOSPI, Korea's main stock exchange, it operates as a single-segment business focused entirely on quartz crystal products, sourcing most of its key raw materials through imports, predominantly from Japan.