- Hanbo Chemical Co., Ltd.
- Address:296-1,Siksa-dong ,Ilsan-gu, Goyang-si
- Boram Co.
- Address:26-150, 984 Shihung3-Dong
- Kumkang Industrial Co., Ltd.
- Address:1512-3,Dadae-dong ,Saha-gu
- Dae Myung Machine Industry Co., Ltd.
- Address:NAMDONG KONGDAN 37BL-16LT,Namchon-dong ,Namdong-gu
- Dsr Corp.
- Address:Songjeong-dong,Songjeong-dong ,Gangseo-gu
- 49ers Co., Ltd.
- Address:Namdaemunno4-ga, Seoul, Seoul, South Korea
- Daein Co., Ltd.
- Address:170-29,Ojeong-dong ,Gimje-si
- SAC Corporation
- Address:384 daejong-ri, Onsan-eup, Ulju-gun
- EG METAL
- Address:Hwang sung-dong, Nam-gu, Ulsan
- Bison Co., Ltd.
- Address:811,TEHERAN OFFICE BLDG., 707-38, YEOKSAM-DONG. KANGNAM-GU
- Daeyoeng Profile Co., Ltd.
- Address:
- TK Metal Co., Ltd
- Address:301 Samsan-dong
- Metal Korea Resource Co Ltd
- Address:bocksan
- CORELINK enterprise co., ltd.
- Address:Sinsa Bldg. 3F., 3-1, Nonhyeon-dong, Kangnam-ku,
- EMAX INC CO.,LTD
- Address:609-5 Wolpyeong-ri Hwangnyong-myeon
- Eastcape Corporation
- Address:615,Gangbyeon Hanshin Core Bldg., 350,Mapo-dong ,Mapo-gu
- Korea Lost Wax Co., Ltd.
- Address:1058-5,Singil-dong ,Danwon-gu, Ansan-si
- YOU-JIN COMMERCICAL
- Address:
- Kumgok Steel Industry. (Steel Grating, Steel Bar Grating, Metal Grating)
- Address:
- EastCore
- Address:137-1 Sosabondong