Jong-Koo Kim

Yantai Partron Electronics Co., Ltd. engages in the manufacture and process of mobile phone filters. Its business scope include production and sale of mobile phone filters and electrical appliances, electronics, and communications-related electronic products; engaged in self-built plant operations; and wholesale, import, and export of mobile camera products. The company was founded on March 18, 2003 and is headquartered in Yantai, China.

Partron Precision Co., Ltd. develops mobile phone components. It has expanded its business area from mobile phones parts to base stations, repeaters and oscillators. The company's products include SIM sockets, battery connectors, multimedia plugs, dielectric filters, antennas, DC & ear jacks, dual memory and LCD connectors. The company was founded in June 1999 and is headquartered in Hwaseong, South Korea.