| Company | Timeline | Status | |
| Newton Investment Management Limited Director • Investment Management | 1 Mar 2000←1 Year 8 Months→29 Oct 2001 | Active | |
SGKBB Limited Director • Investment Director | 1 Apr 1997←7 Months→14 Nov 1997 | Dissolved | |
| The Bainbridge & Boston Co., Limited Secretary • Investment Manager | 26 Aug 1995←6 Years→25 Nov 2001 | Active | |
| The Bainbridge & Boston Co., Limited Director • Investment Manager | 26 Aug 1995←9 Years→1 Sep 2004 | Active | |
