- Phoenix Digital Tech Co.,Ltd.
- Address:17-3,Sinyang-ri ,Dunpo-myeon ,Asan-si
- EunSilHong
- Address:Na 118, Asia Electric Dept. 156-1
- HANYOUNG ELEC. IND. CO., LTD.
- Address:228-16,Galjeon-ri,Miyang-myeon,Anseong-si,Gyeonggi-do,Korea
- GSI Semicon Inc
- Address:Doosan Wve 802-1904, 861 Sanghyun-dong, Suji-ku,
- Dong-A Electric Components Co., Ltd.
- Address:521-58,Sutaek-dong ,Guri-si
- JIO FINE CHEM.CO.,LTD
- Address:Geumjeon-dong
- Koosoo Heavy Electric Co.,Ltd
- Address:1277-7,Jeongwang-dong ,Siheung-si
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