| Company | Timeline | Status | |
| Sound On Sound Limited Secretary • Control Systems Engineer | 8 Apr 1995←23 Years→31 Oct 2018 | Active | |
| Sos Publications Limited Secretary • Company Secretary | 14 Mar 1995←3 Years→7 Aug 1998 | Active | |
| Sound On Sound Limited Director • Control Systems Engineer | 10 Feb 1995←1 Month→8 Apr 1995 | Active | |
