- Seunggwang Co., Ltd.
- Address:160B-10L, Namdong Ind. Zone, 731-7, Gojan-dong, Namdong-gu
- HANMI PURE TECH CO.,
- Address:420-10, Cheongcheon 2-dong, Bupyeong-gu
- Jintec
- Address:114-1 Bangdongli
- SEOJIN TECHNOLOGY
- Address:2f, Shinwoo Bldg, 8-23 Chongam,
- Daelim Corporation .Co.,Ltd
- Address:Habongam-dong
- FRESHWATER CO.,LTD
- Address:522-4, Shinwo-Ri, Chowol-Eup
- XELPOWER
- Address:DONG A VILLA A DONG 201HO BUN DANG DONG
- Shin Han Aquamate Co., Ltd.
- Address:371-59,Gasan-dong ,Geumcheon-gu
- CAROS CO LTD
- Address:407-1, Jang-am-ri, Majang-myeon,
- DOWOOSYS CO LTD
- Address:Cheongju Univ TBI 15-107, 36 Naedeok-dong, Sangdang-gu,
- POS
- Address:DOWHA
- Anjin Masker Ind. Co.
- Address:Bongmyeong-dong,Bongmyeong-dong ,Yuseong-gu
- HYUNDAI HNS
- Address:3rd floor Hyundai weguard B / D 1-190 Mansu Dong Namdong Gu
- E.Roo Trade
- Address:san 24-1, Soungsa-Dong
- Youngone Corporation
- Address:#401, Hengdang B/D, 287 Dangsan-dong 3-ga, Youngdungpo-gu
- TAEYOUNG E&T CO LTD
- Address:pyeongsan-dong 15-2