| Company | Timeline | Status | |
| Deltamist Limited Secretary • Civil Servant | 1 Jun 2004←9 Years→17 Dec 2013 | Active | |
| Deltamist Limited Director • Retired | 28 Feb 2002←23 Years→Current | Active | |
| Ovalplace Limited Secretary • Civil Servant | 25 Jun 1996←21 Years→12 Jan 2018 | Active | |
| Ovalplace Limited Director • Retired | 6 Feb 1995←30 Years→Current | Active | |
