| Company | Timeline | Status | |
High Tower Properties Limited Director • Company Director | 28 Aug 2008←7 Years→19 Jul 2016 | Dissolved | |
| Ove Arup & Partners Limited Director • Project Manager | 1 Sep 2003←5 Years→10 Dec 2008 | Active | |
High Tower Properties Limited Director • Managing Director | 11 Jun 2002←2 Years 10 Months→7 Apr 2005 | Dissolved | |
| Mace Group Limited Director • Director | 3 Aug 2001←9 Months→7 May 2002 | Active | |
| Mace Limited Director • Project-programme Manager | 31 Aug 1999←2 Years 8 Months→7 May 2002 | Active | |
