| Company | Timeline | Status | |
| Foxhill Court Limited Director • Architectural Consultant | 16 Apr 1993←3 Years→4 May 1996 | Active | |
| Faculty Of Building Director • Architectural Consultant-principal | 15 Jun 1992←8 Months→10 Feb 1993 | Active | |
Tong Properties Limited Director • Architectural Consultant & Surveyor | 20 Apr 1992←24 Years→3 Jan 2017 | Dissolved | |
