| Company | Timeline | Status | |
| Windworth Property(Management) Limited Director • Director | 11 Apr 2002←5 Years→9 Jun 2007 | Active | |
| Stoneway Contracting Co. Limited Secretary • Unreported | 31 Aug 1990←35 Years→Current | Active | |
| Stoneway Contracting Co. Limited Director • Secretary | 31 Aug 1990←1 Year 9 Months→18 Jun 1992 | Active | |
