| Company | Timeline | Status | |
| Melbourne Commercial Company Limited Director • Engineer  | 7 Dec 2004←20 Years→Current  | Active  | |
| Melbourne Commercial Company Limited Secretary • Engineer  | 7 Dec 2004←20 Years→Current  | Active  | |
| Mectec Engineering Ltd Director • Engineer  | 14 May 2002←15 Years→28 Sep 2017  | Dissolved  | |
| Mectec Engineering Ltd Secretary • Engineer  | 20 Apr 2001←16 Years→28 Sep 2017  | Dissolved  | |
