| Company | Timeline | Status | |
| Shirley Heights Management Limited Director • Company Director | 20 Nov 2007←5 Years→18 Feb 2013 | Active | |
| 3 D Air Sales Limited Director • Director | 4 Nov 2004←8 Years→31 May 2013 | Active | |
3D Air Conditioning Limited Director • Director | 4 Nov 2004←8 Years→31 May 2013 | Dissolved | |
| HRP Limited Director • Director | 4 Nov 2004←8 Years→31 May 2013 | Active | |
The Air Conditioning Warehouse Limited Director • Company Director | 24 Dec 1999←13 Years→31 May 2013 | Dissolved | |
| 3 D Air Sales Limited Director • Company Director | 28 Jan 1997←7 Years→4 Nov 2004 | Active | |
| Air Conditioning And Refrigeration Industry Board Director • Divisional Director | 11 Apr 1996←1 Year 3 Months→17 Jul 1997 | Active | |
