Jung-Hoi Gu

Alti-Electronics Co., Ltd. manufactures mobile phone parts and semiconductor components. Its business units include Molbile Business, Semiconductor Business, Telecom Business, and Light Emitting Diode(LED) Lighting Busienss. The Mobile Business includes Die Casting external parts, Die Casting internal parts, Development of Material and Processing method, Press terminal and item, and Hinge Mechanism. The Semiconductor Business includes Side View Series, Top View Series, and Power Series. The Telecom Business includes BTS (Base Transceiver System), HRV, and Others. The Light Emitting Diodes (LED) Lighting Business includes Light Emitting Diodes (LED) Light for you (LFY), Light Emitting Diodes(LED) Light, Street Light, Guard Lamp, Down Light, Flat Light, and Installment. The company was founded on October 23, 1972 and is headquartered in Gumi, South Korea.

International Development Co., Ltd. provides construction services. Its services include residential building constructions, civil works, and land development. The company was founded in December 03, 2004 and is headquartered in Gyeongsan, South Korea.

KD Technology Investment Co., Ltd. operates as a South Korean investment company.