- Vatech Humanray
- Address:23-8, Seokwoo-Dong
- Reflomax Co., Ltd.
- Address:# 815, Daeryung Techno Town 3, 448 Gasan-dong, Geumcheon-gu
- EcoRay Co., Ltd.
- Address:B-904 Woolim Lions Valley, 371-28, Gasan dong Geumcheon gu, Seoul, KOREA 153-786
- Posdion Co., Ltd
- Address:1479-10 Cheonggye Medical Bldg.