| Company | Timeline | Status | |
| Frontier Properties Limited Director • Property Manager | 20 Sep 1999←6 Years→5 Dec 2005 | Active | |
| Frontier Properties Limited Secretary • Property Manager | 20 Sep 1999←4 Years→15 Mar 2004 | Active | |
J.J.P.Combined Investments Limited Director • Engineer | 18 Jan 1992←23 Years→8 Dec 2015 | Dissolved | |
