| Alexander Amos | Director | 1 May 1998 | 27 Apr 2001 | British | 70 years |
| Barbara Ann Cooper | Director | 1 May 1998 | 19 Apr 2000 | British | 81 years |
| Barbara Ann Cooper | Secretary | 1 May 1998 | 19 Apr 2000 | British | - |
| Clive Eric Porter | Director | 27 Apr 2001 | 15 Oct 2009 | British | 69 years |
| David Gresford Belmont | Secretary | 9 Apr 2008 | 19 Jan 2009 | British | - |
| David John Todd | Director | 29 Apr 2002 | 23 Jan 2004 | British | 77 years |
| Francis Wilkinson | Director | 1 May 2018 | 9 Mar 2021 | British | 47 years |
| Ian Andrew Donaldson | Director | 29 Apr 2002 | 23 Jan 2004 | South African | 61 years |
| Jonathan Colin Michael White | Director | 1 Aug 2014 | 30 Apr 2018 | British | 64 years |
| Martin Stephen Jeremy Lathom-sharp | Director | 19 Apr 2000 | 30 Sept 2020 | British | 58 years |
| Martin Stephen Jeremy Lathom-sharp | Secretary | 19 Apr 2000 | 1 Nov 2023 | British | - |
| Michael Robert Collings | Director | 1 May 1999 | 19 Apr 2000 | British | 69 years |
| Pinsent Masons Director Limited | Corporate Nominee Director | 18 Feb 1998 | 30 Apr 1998 | United Kingdom | - |
| Pinsent Masons Secretarial Limited | Corporate Nominee Secretary | 18 Feb 1998 | 30 Apr 1998 | United Kingdom | - |
| Richard Michael Chandler | Director | 1 May 2017 | 30 Apr 2018 | English | 54 years |
| Richard William Peers | Director | 9 Mar 2021 | 1 Nov 2023 | British | 51 years |
| Robert Alan Hewitt | Director | 1 May 1999 | 15 Oct 2009 | British | 74 years |
| Robert Fraser Mcalister | Director | 19 Apr 2000 | 27 Apr 2001 | British | 70 years |
| Robert Jeffrey Smith | Director | 1 May 1998 | 30 Apr 1999 | British | 86 years |
| Thomas Niall Ledlie Harrison | Director | 1 May 1998 | 19 Apr 2000 | British | 71 years |
| Thomas Niall Ledlie Harrison | Director | 3 May 2005 | 1 May 2017 | British | 71 years |
| Timothy Gordon Wray | Director | 1 May 1998 | 1 May 2011 | British | 77 years |
| William Alistair Wilson | Director | 1 May 1998 | 1 May 2005 | British | 80 years |
| William Keith Woolgar | Director | 19 Apr 2000 | 4 May 2010 | British | 77 years |
