- OZ mnt co.,Ltd
- Address:Rm 903 KOLONdigitaltowerbilllant Guro-Dong
- Hongduk Steel Cord Co., Ltd.
- Address:758,Daesong-myeon ,Nam-gu, Pohang-si
- Hyunjin Steel
- Address:563 Sinpyung-dong, Saha-gu
- Sung Bu Rope
- Address:716-6, Najeon-Ri, Saengrim-myeon
- GSIT CO.,LTD,
- Address:SANG NOKGU REDONG564-85
- AJ Trading Co., Ltd.
- Address:Jongno
- F.I.G. CO LTD
- Address:Rm no. 504, Samsung Bldg. # 23-13 Deachang dong 1ga
- High International Metal Corporation
- Address:The One Bldg, Daechi-dong 891-59, Gangnam-gu
- GITRANS
- Address:506, Dae Joo B / D, Sa dong, Joong Gu
- Hangillogistics
- Address:Yakjun-ri
- You One Marketing Co., Ltd.
- Address:RM 301, KILBUN B/D, 1685-32, BONGCHUN-DONG, KWANAK-KU
- HanShang Metal Resource inc
- Address:Seoul Bldg 2F, 49-1 Samsung-dong, Kangnam-ku, Seoul , Korea
- Fine Steel Co., Ltd.
- Address:230-4,Hakjang-dong ,Sasang-gu
- CYSTEL INC
- Address:# 3408 Trade Tower 159-1
- Jawon Exploitation Company
- Address:4th Fl, Jawon B / D, 913-31 Daechi-Dong, Gangnam-Gu
- CJ O Shopping
- Address:Samsung C & T Corp. Bldg. Seocho 2-Dong, Seocho-Gu
- Korea Nickel Corporation
- Address:YONGPUNG B/D,142, Nonhyeon 1-dong ,Gangnam-gu
- Korea Multitec Ltd.
- Address:41-1, Ungam-1-dong, Eunpyong-ku
- Shentra Co., Ltd
- Address:3710, Daejeo2-Dong, Gangseo-Gu
- Steelplus Corporation
- Address:1304, Byuck San Digital Valley 9, 5-Ga, Mul Lae-Dong, Yeong Deung Po-gu