- SUNGJIN ELCECTRIC
- Address:Jangreung-ri, Juksan-myeon
- Jung-Dae Tech.
- Address:40-8, Wonmi-dong, Wonmi-gu
- Il Kwang Electric Co., Ltd
- Address:1111-1,Gaegok-2ri,Oedong-eup ,Gyeongju-si
- Shin Kwang Hitech Co,Ltd
- Address:539-2,Wonsan-ri ,Haseong-myeon ,Gimpo-si
- Ilsung Ltd
- Address:5f Daeji Bldg. 1125-15 Hwagok-dong Kangseo-gu
- LNC Design
- Address:Yoondang B / D 701
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