| Alan Edward Moore | Director | 1 Aug 1998 | 16 Apr 2003 | British | 90 years |
| Christopher Michael Wiscarson | Director | 1 Jun 2000 | 15 Feb 2005 | British | 75 years |
| Colin Graham Dowsett | Director | 7 Nov 2022 | 22 Nov 2023 | British | 62 years |
| Colin Neville Joseph Wilks | Director | 13 Apr 1992 | 31 Dec 1994 | British | 90 years |
| David Blair Pirrie | Director | 18 Dec 1992 | 31 May 1997 | British | 88 years |
| David John Joyce | Director | 27 Mar 2012 | 11 Jul 2023 | British | 65 years |
| Francis Edward Jones | Director | 13 Apr 1992 | 18 Dec 1992 | British | 94 years |
| George Truett Tate | Director | 21 Apr 2004 | 6 Feb 2012 | American | 76 years |
| Hans-wolfgang Main | Secretary | 13 Apr 1992 | 3 Jun 1996 | British | - |
| Helen Alison Weir | Director | 15 Feb 2005 | 2 May 2008 | British | 64 years |
| Helen Suzanne Rodgers | Secretary | 3 Jun 1996 | 18 Oct 2001 | British | - |
| Iain Donald Cheyne | Director | 1 Apr 1997 | 31 May 2000 | British | 84 years |
| Jakob Pfaudler | Director | 27 Mar 2012 | 28 Jan 2014 | Austrian | 54 years |
| John Richardson | Director | 23 Jan 2024 | 17 Apr 2025 | British | 58 years |
| John Thomas Davies | Director | 31 Mar 1995 | 31 Jul 1998 | British | 93 years |
| Lloyds Secretaries Limited | Corporate Secretary | 21 Jun 2011 | 2 Feb 2016 | United Kingdom | - |
| Mark Jeffrey Preston | Director | 17 Jan 2007 | 8 Mar 2008 | British | 66 years |
| Michael Harry Rex Thompson | Director | 13 Apr 1992 | 30 Mar 1995 | British | 95 years |
| Michael Kent Atkinson | Director | 1 Jan 1995 | 31 May 2002 | Anglo Brazilian | 81 years |
| Michael William Joseph | Director | 15 Feb 2005 | 15 Nov 2006 | British | 70 years |
| Michelle Antoinette Angela Johnson | Secretary | 2 Feb 2016 | 4 Aug 2017 | - | - |
| Paul Gittins | Secretary | 4 Aug 2017 | 31 Jul 2024 | - | - |
| Philip Robert Grant | Director | 28 Jan 2014 | 7 Nov 2022 | British | 60 years |
| Philip Roy Hampton | Director | 27 Jun 2002 | 12 Jan 2004 | British | 73 years |
| Stephen Craig Targett | Director | 16 Jun 2003 | 30 Apr 2004 | Australian | 71 years |
| Stephen John Hopkins | Secretary | 18 Oct 2001 | 28 Feb 2010 | British | - |
| Timothy James William Tookey | Director | 2 May 2008 | 24 Feb 2012 | British | 64 years |