- Won Chang Entec Corporation
- Chain flight sludge collector, Bridge-travelling sludge collector, Central-drive type sludge collector.
- Address:386-1, Daejeong-ri, Samseong-myum, Eumseong-gun, Chungcheongbuk-do 369-830 Korea
- Linkon Technology Co. Ltd.
- Sludge Collector, Sludge Scraper, Non metallic Chain, Non Metallic Sprocket.
- Address:#1309 Tech-dong, SKN Technopark, Sangdaewon 1-dong, Jungwon-gu, Seongnam-si Gyeonggi-do 462-120 Korea
- TASET INC.
- Water treatment, Waste water treatment, Sludge collector, Mixer, Filter, Water treatment plant.
- Address:#1205, ACE Twin Tower 2-cha, Guro 3(sam)-dong Guro-gu Seoul 152-779 Korea
- SuckSung Engineering & Construction Co., Ltd.
- chlorine gas neutralizer, sludge collector.
- Address:848 WolGok-ri GunSeo-myeon YoungAm-gun 526-850 Korea
- Hanhim Technology
- Automatic Change-Over Device,Sludge Collector ,Chlorine dioxide Compact system ,Injectors 545,Vacuum Regulators GS146-148,Chlorine Gas Filter LiquFilt,Pressure Reducing Valve 544,Dry Material & Chemical Feeding System ,Liquid chemical facilities,Vacuum Re.
- Address:465-2,Goyang-ri ,Wolgot-myeon ,Gimpo-si
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