| Company | Timeline | Status | |
| National Liberal Club Limited(The) Director • Academic | 11 May 2004←9 Months→22 Feb 2005 | Active | |
| Konigswinter Director • Academic | 19 Mar 2003←4 Years→26 Jul 2007 | Active | |
Asia-Pacific Technology Network Director • Retired | 23 Oct 1997←3 Years→31 Dec 2000 | Dissolved | |
| Chatham House Enterprises Limited Director • Unreported | 27 Jan 1997←1 Year 5 Months→14 Jul 1998 | Active | |
