- Sam Dong Co., Ltd.
- Insulated Rectangular Conductors,Enamelled Rectangular Conductors,Oxygen Free High Conductivity Copper,Special Insulation Covered Rectangular Conductors,Continuously Transposed Conductors.
- Address:39,Daeso-myeon ,Eumseong-gun
- Kaya Ama Co.,Ltd.
- HCCD - Oxygen Free Copper,FPMD - Rings,Pmd,HCCD - Silver Bearing Copper,FPMD - Filters.
- Address:1010-1,Yongyeon-ri ,Habuk-myeon ,Yangsan-si
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