| 2008 year | UL, FM certification |
| 2006 year | Acquired INNOBIZ certification |
| 2006 year | Acquired environment management system certification |
| 2006 year | Transferred production facilities to Balan, Hwaseong, Gyeonggi-do |
| 2005 year | Acquired patent for its sprinklers |
| 2006 year | Commenced sprinkler production |
| 2005 year | Shaft processing Export to Mitsubishi |
| 2004 year | Acquired sprinkler certification |
| 2004 year | Manufactured and exported HALCRO casting to Australia |
| 2003 year | Acquired ISO 9001 |
| 1999 year | Precision processing and export of shafts Sanyo and Toshiba |
| 1990 year | Manufactured train wheels |
| 1989 year | Founded Daejin Industry |