- APL Corporation
- Address:1758 Jangjae-ri, Baebang-Eup
- C&J Aluco Tech
- Address:25-318 Sihwa Gonggu Sangga, #1364, Jeongwang-dong
- Youngshin Metal
- Address:1206-11 Shinsangri Jinliangeup
- Kyongin Special Metal Co., Ltd.
- Address:717-8,Kojan-dong ,Namdong-gu, Inchon
- Korea Agency Of Environment
- Address:,Wollae-dong ,Yeosu-si
- Sam Kyung Altec Co., Ltd
- Address:144B-2L,Gojan-dong ,Namdong-gu
- Kyungdong Navien Co., Ltd.
- Address:437,Segyo-dong ,Pyeongtaek-si
- SHINWOO METAL KOREA
- Address:
- S&T COREA
- Address:RM 407,Gyeong-Nam International Trade Center, 7-4 YongHo-Dong
- KIPSCO
- Address:Sangnamdong 71-1. 3f
- Aaron Trading
- Address:Seoul
- D&J ENERGY LTD
- Address:jenovia 802 ho, 185-16 Bangi-Dong
- YEDREEN
- Address:A-1608, Samho B / D, 275-1 Yangjae-dong, Seocho-gu
- Hungseng Trading Co., Ltd.
- Address:1, Jungang-dong 3-ga, Jung-gu
- INKOS INTERNATIONAL COMPANY
- Address:KYYONGGI DO
- GUMSUNG TECH CO LTD
- Address:96-10 bongdam buncheon
- SEGYE CAST IRON CO., LTD
- Address:171 eobang ri, dae chang myeon
- SAMIN KOREA CO.,LTD
- Address:#839 Yulsangle, Daegot-myeon
- U & C Corporation
- Address:85,DongDong-ri ,Uiryeong-eup ,Uiryeong-gun
- DOHO Co., Ltd.
- Address:1470 ACEHIGHTECH21 2007-2