- KRKC CO LTD
- Address:409-13, Metan-3Dong, Yeongtong-Gu,
- Samwon Piv
- Address:224-8, Samjeong-dong, Ojeong-gu, Bucheon-si
- KDD
- Address:443 803 409-13 Maetan 3 dong, Yeongtonggu, Suwon city, Gyeonggido
- Telstar Hommel Corporation
- Address:455-2 Hyeongok-ri,Cheongbuk-myeon ,Pyeongtaek-si
- Poltec Co.,Ltd.
- Address:dangsan-dong 6-ga
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