| Company | Timeline | Status | |
| Kespar Technology Limited Director • Metallurgist | 9 Jul 2003←10 Years→30 Apr 2014 | Active | |
| Blackwater Holdings Ltd Director • Metallurgist | 3 Mar 2000←14 Years→30 Apr 2014 | Active | |
| Weldclad Limited Director • Metallurgist | 1 Jul 1997←16 Years→30 Apr 2014 | Active | |
| Corewire Limited Director • Metallurgist | 12 Jul 1991←22 Years→30 Apr 2014 | Active | |
