| Company | Timeline | Status | |
| Glendale Countryside Limited Director • Arborist | 3 Apr 1996←2 Years 5 Months→31 Aug 1998 | Active | |
| Elder Management Company Limited Director • Aboricultural Manager | 23 Aug 1992←5 Months→1 Feb 1993 | Active | |
| Elder Management Company Limited Director • Unreported | 1 Jan 1970←23 Years→1 Feb 1993 | Active | |
