- VATECH SYSTEM CO LTD
- Address:304 Kunpo-jeilkongdan, 323-1 Dangjung-dong
- WOORIM Electronics Co. LTD.
- Address:1108-8 Namchon-ri, Oksan-myeon, Cheongwon-gun
- Hanshin Electronics Co., Ltd.
- Address:
- Dae Ryung Ind., Inc.
- Address:#219-6,Kasan-Dong,KumChun-Gu
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