- Kass Steel & Stationery Co.
- Address:619-21 Buwon
- YNP and DM
- Address:Yeoksamdong
- Infomation Technology Convergence Ubiquitous
- Address:Room# 1518 LG Palace, Donggyo-Dong, Mapo-Gu
- Jinhung Metal Ind. Co.,
- Address:434-278,Oryu-dong ,Seo-gu
- Saemah Co.,Ltd
- Address:Rm# 301 Taewoong Bldg 166-9 SooAn-ong Dongnae-ku
- Hyun dai iron plate superior
- Address:854-32 Bum Chun 1 Dong Jin Gu
- Jung Won Steel
- Address:9-10 Gonghang Dong
- Dooson Inc.
- Address:1F. 67-30,Guui-dong ,Gwangjin-gu
- J J WOOD Corp
- Address:546 Hakik-Dong, Namgu
- Cheong-Sol Eng Co.,Ltd
- Address:710, RivertowerI, 94-119, Yeongdeungpo-Dong 2Ga, Yeongdeungpo-Gu
- Shinsung International Co.
- Address:KUMHO-DONG 2-GA SONGDONG-GU,Geumho-dong 2-ga ,Seongdong-gu
- pipesolutions
- Address:3road
- Seo Heung I&S co.,ltd
- Address:13, Yeouido-dong
- Yuji Corporation
- Address:ROOM 403 CHOONGOK BLDG 561-30 SHINSA-DONG KANGNAM-KU Seoul
- JH International Trade
- Address:namsandong 99-14, guemjung gu
- JUNGJIN METAL Co,.Ltd
- Address:956-22, Gamjun-Dong, Sasang-Gu
- Biocarbon Tech Co Ltd
- Address:D-blk,25-304, #604-1, Kuro-dong, Kuro-ku,
- SeJong Steel Co.,ltd
- Address:
- GNC METAL
- Address:NO. 618 GWANYANGDONG 1597, DONG ANGU
- PNK Trade Networks
- Address:# 1114, Hwanghwa Bldg, 832-7, Yeoksam-Dong,