SMK is a company that manufactures and sells various parts for electro-communication devices and electronic equipment. It operates through three divisions: Connection System (CS), Sensing, Communications, and Interface (SCI), and Research and Development Center. The Connection System division produces and sells connectors and jacks. The Sensing, Communications, and Interface division provides remote controls, switches, camera modules, and touch sensors. The Research & Development Center division offers wireless modules and NFC antennas.