- Hanmi International
- Address:13-113 Sankok-Dong,
- UBS INC Co., Ltd.
- Address:No. 705, 302 dong, Yeonsu Prugio 3rd Complex, Yeonsu-dong# 596
- Femto SFT
- Address:femtosft
- Mywater, INC. (Affiliate Of Keosan Co., Ltd.)
- Address:4th Fl. , Lakeside-Tower, 58, Songpa-Dong, Songpa-Gu,
- CamFront.CO.,LTD
- Address:SONGJEONG
- CHUNGYUDANG
- Address:205-1, Beomeo-dong
- Carbomax Corp.
- Address:149, Chuck Sanri, Nami Meun
- Hana Seoul Corp.
- Address:Buwon B / D, 175-1 Buamdong Chrongrogu
- Choice Energy
- Address:Yatap-dong 151, Bundang Techno Park D-602
- HJ WATER CO
- Address:SINKOK DONG, UIJEONG BU CITY
- Dabinwatec co., Ltd.
- Address:
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