
| Country | City | Address |
|---|---|---|
| Korea (Republic of) | Seongnam | 3rd Floor, Sambournesang Park II, 305 Sanseong-daero HQ |
| Korea (Republic of) | Gwangju | Korea Optical Technology Institute, 2-B-dong |
| Korea (Republic of) | Seongnam | Byeoksan Technopia No. 504, 434-6 Sangwon-dong |