- 1983. 9 - KORYO MACHINERY was established.
- 1983. 10 - Authorized as Medium and Small-Sized Enterprises Affiliate: DAELIM MOTORCYCLE (Commerce Industry Ministry)
- 1995. 3 - Change of Address to 1290-2 Jeongwangdong, Siheung-Si, Gyeonggido due to new built factory.
- 1995. 8 - Selected as an Enterprise that executes localizing the materials of machinery parts (Industrial Association of Korea)
- 1995. 11 - Designated as an Industry for Alternative Military Service (Military Manpower Administration)
- 1996. 3 - Developed the components for Screw Compressor
- 1996. 3 - Disposal of Factory above
- 1996. 3 - Change of Address (New Factory) to 1377-15 Jeongwangdong, Siheung-Si, Gyeonggido
- 2000. 1 - Registration of Utility Model: Components for Compressor: SERVO CYLINDER (Korean Intellectual Property Office)
- 2001. 4 - Change of Address to 2ba 103-1, Sihwa Industrial Complex, 2172-2 Jeongwangdong, Siheung-Si, Gyeonggido
- 2008. 8 - Change of Address to 2ba 711, Sihwa Industrial Complex, 2174-3 Jeongwangdong, Siheung-Si, Gyeonggido
- 2014. 2 - Acquisition of ISO 9001:2008
