| Alain Leopold Grisay | Director | 11 Oct 2004 | 27 Oct 2008 | British | 72 years |
| Anthony Richard Swinburne-johnson | Secretary | 31 Jan 1993 | 17 Oct 1996 | British | - |
| Bmo Asset Management (holdings) Plc | Corporate Secretary | 12 Feb 1999 | 12 Mar 2019 | - | - |
| Brian William Sweetland | Director | 18 Sept 1998 | 12 Feb 1999 | British | 81 years |
| Brian William Sweetland | Secretary | 18 Sept 1998 | 12 Feb 1999 | British | - |
| David Logan | Director | 31 Jul 2006 | 10 Feb 2025 | British | 57 years |
| David Low | Director | 31 Jan 1993 | 18 Sept 1998 | British | 82 years |
| F&c Asset Management Plc | Corporate Director | 24 May 2006 | 27 Oct 2008 | - | - |
| Howard Carter | Director | 12 Feb 1999 | 16 May 2006 | British | 75 years |
| Hugh Cameron Moir | Director | 14 Aug 2019 | 8 Nov 2021 | British | 69 years |
| Ian John Paterson Brown | Director | 28 Jan 2003 | 24 May 2006 | British | 72 years |
| Ian Ogilvie Mcbryde | Director | 1 May 2012 | 1 Jun 2016 | British | 72 years |
| Ivor Smith | Director | 27 Oct 2008 | 7 Mar 2017 | British | 68 years |
| Joan Z Mohammed | Director | 3 Jul 2017 | 2 Aug 2019 | American | 65 years |
| Keith Satchell | Director | 18 Sept 1998 | 12 Feb 1999 | British | 75 years |
| Kenneth John Back | Director | 30 Sept 2000 | 11 Oct 2004 | British | 71 years |
| Kevin David Mcgrath | Director | 27 Oct 2008 | 1 May 2012 | British | 63 years |
| Leopold Noe | Director | 27 Oct 2008 | 7 Mar 2017 | British | 73 years |
| Max Schlaefli | Director | 31 Jan 1993 | 21 Mar 1996 | British | 76 years |
| Nick Criticos | Director | 28 Jan 2003 | 11 Oct 2004 | British | 68 years |
| Nick Criticos | Director | 27 Oct 2008 | 17 May 2019 | British | 68 years |
| Paul Graham Meads | Secretary | 27 Oct 2008 | 7 Mar 2017 | British | - |
| Paul Grant Herrington | Director | 27 Oct 2008 | 22 Aug 2010 | British | 69 years |
| Peter Alistair Kennedy Arthur | Director | 28 Jan 2003 | 11 Oct 2004 | British | 70 years |
| Peter Derek Jones | Director | 18 Sept 1998 | 30 Sept 2000 | British | 85 years |
| Peter Godfrey Metcalfe | Director | 31 Jan 1993 | 18 Sept 1998 | British | 81 years |
| Rachel Danae Burgin | Secretary | 11 Mar 2021 | 11 Oct 2024 | - | - |
| Raymond John Alexander | Director | 31 Jan 1993 | 18 Sept 1998 | British | 77 years |
| Reginald William Ammon | Director | 31 Jan 1993 | 18 Sept 1998 | British | 73 years |
| Richard Frederick Wilson Kirby | Director | 1 May 2012 | 22 Aug 2017 | British | 59 years |
| Richard John Foord | Director | 31 Jan 1993 | 15 Mar 2000 | British | 81 years |
| Robert Edwin Talbut | Director | 28 Jan 2003 | 11 Oct 2004 | British | 66 years |
| Simon Mcclean | Director | 31 Jan 1993 | 3 Nov 1994 | British | 80 years |
| Steven Colin Hornbuckle | Secretary | 17 Oct 1996 | 18 Sept 1998 | British | - |
| Thomas Albert Pyne | Director | 15 Dec 1994 | 18 Sept 1998 | British | 79 years |
| William Theodore Clarke | Secretary | 24 Mar 2017 | 11 Mar 2021 | - | - |