- World Science
- Address:271,Neungwon-ri, Mohyeon-myeon, Cheoin-gu
- Kumho Hardware Co., Ltd.
- Address:#1518, Hyundai etrebeau, 852, Janghang-dong, Ilsan-gu, Goyang-si
- Kumyung Industry Co., Ltd
- Address:# 1003, 109dong, Lotte Lakchundae 1cha, Banyeo 1, Haeundae-Gu
- Cnegs
- Address:CN Bldg 195-42, Anyang7-dong, Manan-gu
- Dong Kwang Die Casting Co., Ltd.
- Address:250-4,Yeomchang-dong ,Gangseo-gu
- BUYOUNGMETAL CO., LTD.
- Address:402-3 Shindorimdong Gurogu
- SAMSUNG PRECISION IND. CO. LTD
- Address:167, Bongsu-daero
- HYUNDAE METAL CO.,LTD
- Address:# 665-2, Sangyeok 2 Dong, Buk-Gu
- Soo Young International Ltd.,
- Address:
- STWORLD CO LTD
- Address:Halla Sigma Valley B215, # 442-2, Sangdaewon-dong, Jungwon-gu
- Kopat
- Address:Room702, SinsanBD, Gumjong 874-2
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