- 2012
- Jun : PhoenixTek plant completion
- 2011
- Jan : Established Phoenix Tek - Gwangju, Korea (IR optics materials and optics parts production)
- Mar : Signed an investment agreement with Gwangju Metropolitan City Government
- Aug : Signed a contract to enter in the industrial complex within the foreign investment zone of Pyeongdong, Gwangju (61,500m2)
- Nov : Started construction of Phoenix Tek (Pyeongdong industrial complex: 6,612m2)
- 2008
- Established RMI Laser Europe/Poland (Laser sales and services)
- 2006
- Established RMI-Europe (Sales of optic parts)
- Took over Octand, LLC. of Russia to make use of the ZnSe manufacturing technology
- Established RMI Infrared
- 2004
- Established RMI-Japan (Laser sales and services)
- 2003
- Established RMI-Korea (Laser sales and services, technology development)
- 1988
- Established RMI Laser, LLC (Laser platform and marking system)
- 1995
- Established Optic Penta in Moscow, Russia to make use of the optics technology of Russia
- 1983
- Doctor Yu-bong Han took over RMI (Precision optics and coating)
- 1957
- Rocky Mountain Instrument (RMI) established

