- Yujin Electric Corp.
- Address:867, Janghang-Dong, Ilsandong-Gu`
- RSTechnology
- Address:Jinwi Industrial Complex, 348-2 Cheongho-ri, Jinwi-myeon
- CONVEX
- Address:# 501, ACE High-End Tower, 235-2
- OZSYSTEMS
- Address:Yangpyeong-dong 5-ga, Yeongdeungpo-gu
- Erae-tech Co,. Ltd.
- Address:A-304 BYC HighCity 317-17 Gasan-dong
- HODI,CO.,LTD
- Address:# 460-35 Seokyo-Dong, Mapo-Ku, Seoul. Korea
- FHN international
- Address:Jeongwang-dong
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