| Company | Timeline | Status | |
| Plantlink Limited Director • Director  | 17 Feb 2006←6 Years→14 Sep 2012  | Dissolved  | |
Doosan Infracore U.K. Ltd Director • Director  | 1 Feb 1997←9 Years→28 Feb 2006  | Dissolved  | |
Doosan Infracore U.K. Ltd Secretary • Director  | 1 Feb 1997←9 Years→28 Feb 2006  | Dissolved  | |
