- Silverex
- Address:17l 81b, Namdong Industrial Complex, Namdong-Gu
- INUS Partners Corporation
- Address:Saemmaelgil
- DMBIO CO., LTD
- Address:101 2F World Trade Center Smaseong-dong, Gangnamg-gu,
- Iwoo Scientific Co.,
- Address:1503-15,Seocho-dong ,Seocho-gu
- Enstar Co., Ltd.
- Address:1148-3, Sooweolam 3-ri, Seotan-myeon
- Korea Bio Nano Tech
- Address:2floor Myung Soo-Building, Seogyo-Dong
- pailand co.,ltd
- Address:1169-10 bunji, Choryang 3-dong
- Twell Co., Ltd.
- Address:678-2 Sungjung-Dong
- Uni Co., Ltd.
- Address:664-14 Deokjindong Deokjingu
- Puri Co., Ltd
- Address:#826 Samsung Midas Venture Town 775-1, JangHang-Dong, Ilsan-Gu
- Hiqtech Co., Ltd.
- Address:
- juntro co.,ltd
- Address:436 Bundong gangbukgu
- Deajin nano filter
- Address:1080-5 Wolamdong
- Hanumul
- Address:Room 701-1 Ilsan Techno Town
- HANDOK CLEAN TECH. CO., LTD.
- Address:No. 690, Gwanpyeong-dong, Yuseong-gu
- OTULAND CO.,LTD
- Address:970-109, Wolchul-dong, Buk-gu
- if hitech Co.,ltd
- Address:Naeduk-2
- KUM YANG MATERIALS COMPANY
- Address:
- Hendi International Inc.
- Address:137-2 Hongje-dong, Seodaemun-ku
- sachima electric appliance company
- Address:Dogn-Myoung Bldg, 23-8, Kuro-5dong,