| Company | Timeline | Status | |
KGS Development Company Limited Secretary • Consultant | 23 Nov 2004←9 Years→21 Oct 2014 | Dissolved | |
| Kingston Grammar School Secretary • Consultant | 12 Nov 2004←11 Years→23 Nov 2015 | Active | |
Diffusion BMS Limited Director • Managing Director | 2 Feb 1992←2 Years→14 Feb 1994 | Dissolved | |
