| Company | Timeline | Status | |
Heytop Limited Director • Director | 1 May 2002←13 Years→14 Jun 2015 | Dissolved | |
Heytop Limited Secretary • Director | 1 May 2002←13 Years→14 Jun 2015 | Dissolved | |
| Formula Sound Limited Director • Secretary | 16 Jan 1991←14 Years→21 Sep 2005 | Active | |
