| Company | Timeline | Status | |
| Clearwater Place Ltd Director • Structural Engineer | 22 May 2009←4 Years→23 Aug 2013 | Active | |
| Clearwater Place Apartments RTM Company Limited Secretary • Retired Structural Engineer | 23 Nov 2007←10 Months→30 Sep 2008 | Active | |
| Clearwater Place Apartments RTM Company Limited Director • Retired Structural Engineer | 23 Nov 2007←4 Years→1 May 2012 | Active | |
| Infotech Management Limited Secretary • Unreported | 22 Dec 2003←15 Years→21 Jun 2019 | Active | |
| Sentis Management Company Limited Director • Retired | 31 Mar 1991←7 Years→18 Jan 1999 | Active | |
