Bok-Young Lee

Gunjang Energy Co., Ltd. engages in the production and distribution of electricity. It operates through following businesses: Electric Power and Steam. The company was founded on November 1, 2001 and is headquartered in Gunsan-si, South Korea.

SMG Energy Co., Ltd. engages in the generation of thermoelectric power. The company was founded on December 4, 2014 and is headquartered in Gunsan-si, South Korea.

Part of SGC Energy Co., Ltd., SGC Solutions Co. Ltd. is a South Korean company that manufactures glassware.

Sg Development Co., Ltd. engages in the provision of rental services of real estates. The company was founded on October 25, 2011 and is headquartered in Gunsan-si, South Korea.

Quartz Tech Ltd. engages in the manufacture and sale of industrial ceramics. Its products include quartz crucibles for silicon ingots. The company was founded on December 12, 2008 and is headquartered in Iksan-si, South Korea.