| Company | Timeline | Status | |
| Opalfine Limited Director • Librarian | 8 May 1992←22 Years→31 Jul 2014 | Active | |
| Kamtao Holdings Limited Director • Librarian | 8 May 1992←22 Years→31 Jul 2014 | Active | |
| Kamtao Properties Limited Director • Librarian | 8 May 1992←22 Years→31 Jul 2014 | Active | |
