| Company | Timeline | Status | |
| Rock Farm Management Company Limited Secretary • Retired | 30 Aug 2003←6 Years→3 Apr 2010 | Active | |
| Rock Farm Management Company Limited Director • Retired | 29 Oct 1999←26 Years→Current | Active | |
| Rock Farm Management Company Limited Director • Retired | 29 Oct 1999←25 Years→4 Oct 2025 | Active | |
