- Super alloy Co
- Address:Jeongwangdong
- woobang
- Address:wolamdong 1117
- Eureka Corp.
- Address:Rm. 802, Hanil B / D, Ryuljeon-Dong, Jangn-Ku
- KGF CO.
- Address:113-2, Baeyang-ri, Jingeon-eup
- YUN International
- Address:
- Woodam Corporation
- Address:Suite203, 1589-1Shinwon-dong, Gwanak-gu, Seoul, Korea
- Shinheung Recycling Ltd.,co.
- Address:798-1, Shin Gum Ri, Sam Rye Eup
- SAMICK ENG
- Address:1-194 Wolam-dong Dalseo-gu
- Sanno Butsusan Co., Ltd.
- Address:Rm. 411/412, Victoria Bldg, Yeoksam 1-dong ,Gangnam-gu
- ROYAL RECYCLERS CORPORATION
- Address:Address:Rm.426, #746, Wuin-2 Janghang-2,
- WB Nano27
- Address:193 Sancheon-Dong Yongsan-Gu
- DAEKYOUNG Co, Ltd
- Address:437-1
- BNP in Korea
- Address:389-631,Sanggea-2dong
- GMS Global Corp,.
- Address:BongMyeongDong101, HuengDukGu,
- Hanlab Corporation
- Address:484-1, Dongpae-ri, Gyoha-eup, Paju-si
- DONGSEO E & C CO LTD
- Address:37 Dowha Dong Mapo-Ku, Jindo Bldg 601, Seoul Korea
- HOIYONG CO.,LTD.
- Address:SEOCHO
- EUNKANG T&C CO LTD
- Address:choongung-dong 358-1
- Agolta Trade Company
- Address:802-1, Sangdo1-dong, Dongjak-gu, Seoul, Korea
- Giant Ent.
- Address:Rm 405, Gongjak Buyoung APT 304, Bulim-Dong, Dongan-Gu,