- POTEC CO LTD
- Address:
- PEMTRON CORPORATION
- Address:1406, Byucksan Digital Valley VI, 481-4, Gasan-Dong, Geumcheon-Gu,
- Tech-Kor Engineering Co.,Ltd
- Address:RM1003, KUMGANG B/D, 14-35, YOUIDO-DONG, YOUNGDUNGPO-GU
- MK Electronics Co.
- Address:#301,5th,Acetechno Tower,197-22,Gurodong,Gurogu
- Dongil Electric Instrument Co., Ltd
- Address:
- SERACORE
- Address:
- Dong Sahn Jenix Co., Ltd.
- Address:285-1 Gung-dong Guro-gu,
- HanKwang Opto Corp
- Address:563-4, Shipjung-Dong, Bupyung-Gu,
- seoyoun electric
- Address:
- Mecasys Co., Ltd.
- Address:10F, 640-3, Banseok-dong, Yuseong-gu
- YJ-Tech
- Address: