| Company | Timeline | Status | |
| Chasewood House (Southport) Management Company Limited Director • Electrical Engineer | 16 Jul 1998←5 Years→13 Oct 2003 | Active | |
| Chasewood House (Southport) Management Company Limited Secretary • Electrical Engineer | 16 Jul 1998←5 Years→13 Oct 2003 | Active | |
| Bomac Electric Limited Director • Electrical Engineer | 31 Oct 1992←26 Years→18 Sep 2019 | Active | |
