| Company | Timeline | Status | |
| Industrial Scrap Processing Limited Director • Manager | 1 Aug 1996←27 Years→30 Apr 2024 | Active | |
| Industrial Scrap Processing Limited Secretary • Unreported | 22 May 1992←4 Years→31 Jul 1996 | Active | |
| Button Holdings Limited Director • Company Secretary | 12 Feb 1992←32 Years→30 Apr 2024 | Active | |
| Button Holdings Limited Secretary • Unreported | 7 Feb 1992←4 Years→31 Jul 1996 | Active | |
| W.F.Button & Son Limited Director • Secretary | 31 Dec 1991←13 Years→19 Aug 2005 | Dissolved | |
| W.F.Button & Son Limited Secretary • Unreported | 31 Dec 1991←4 Years→31 Jul 1996 | Dissolved | |
