- Dong-A Electric Instrument Co
- Address:154-2, Yanggok-ri, Yangchon-myun
- Daebong Inc.
- Address:424-1, Janghyeon-ri, Jinjeop-eup
- Shinsung Electric Co.,Ltd.
- Address:870-5,DALSAN-RI,Jeonggwan-myeon ,Gijang-gun
- DAEYANG ENGINEERING CO., LTD.
- Address:189-12 1 Floor, Daeyang Bldg, Wonnam-Dong, Jongro-Gu
- Benion Corp.
- Address:300-14,Bonsan-ri ,Jinyeong-eup ,Gimhae-si
- Dae seung ind. co., ltd.
- Address:441-3, Ganab-Ri, Gwanggug-Myun
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