| Company | Timeline | Status | |
| ABS Metals Limited Director • Builder | 29 Nov 1991←34 Years→Current | Active | |
| Spiral Construction Limited Director • Construction Engineer | 5 Sep 1991←19 Years→4 Oct 2010 | Active | |
| ABS Metals Limited Director • Unreported | 1 Jan 1970←55 Years→28 Nov 2025 | Active | |
