| Ailish Martina Christian West | Director | 14 Mar 2014 | 26 Mar 2015 | Irish | 50 years |
| Andrew John Berger-north | Director | 30 Apr 2019 | 7 Aug 2020 | British | 65 years |
| Ashley Peter Blake | Director | 4 Feb 2009 | 14 Mar 2014 | British | 57 years |
| Colin Edward Palmer | Director | 21 Jul 1999 | 31 Dec 2005 | British | 68 years |
| David John Atkins | Director | 31 Dec 2005 | 26 Oct 2011 | British | 60 years |
| David Leslie Frank Holt | Director | 28 Jul 2010 | 30 Sept 2012 | United Kingdom | 68 years |
| Despina Don-wauchope | Director | 28 Oct 2013 | 26 Mar 2015 | British | 57 years |
| E P S Secretaries Limited | Corporate Nominee Secretary | 31 Mar 1999 | 5 May 1999 | - | - |
| Erna Marina Boogaard | Director | 31 Jul 2007 | 13 Aug 2009 | Dutch | 60 years |
| Gary Francis Hutcheson | Director | 28 Jul 2010 | 14 Nov 2014 | British | 66 years |
| Geoffrey Harcroft Wright | Director | 21 Jul 1999 | 31 Dec 2005 | British | 83 years |
| Graham Field | Director | 5 May 1999 | 30 Oct 2007 | British | 79 years |
| Henderson Secretarial Services Limited | Corporate Secretary | 21 Jul 1999 | 17 Oct 2006 | - | - |
| Herbert William Martin | Director | 28 Jul 2010 | 27 Jul 2011 | British | 71 years |
| James Robert Mount | Director | 29 Sept 2006 | 28 Jul 2010 | British | 47 years |
| John Andrew Bywater | Director | 8 Oct 2002 | 31 Dec 2005 | British | 79 years |
| John Andrew Bywater | Director | 31 Dec 2005 | 30 Jan 2007 | British | 79 years |
| John Andrew William Dodds | Director | 21 Jul 1999 | 10 Sept 2001 | British | 70 years |
| John Simon Bertie Smith | Director | 29 Sept 2006 | 30 Jun 2010 | British | 62 years |
| Jonathan Michael Emery | Director | 1 Oct 2001 | 8 Oct 2008 | British | 60 years |
| Keith Redshaw | Director | 5 May 1999 | 20 Mar 2001 | British | 80 years |
| Lawrence Francis Hutchings | Director | 31 Dec 2005 | 29 Sept 2006 | British | 60 years |
| Lawrence Francis Hutchings | Director | 4 Feb 2009 | 19 Sept 2012 | British | 60 years |
| Lawrence Francis Hutchins | Director | 13 Apr 2004 | 31 Dec 2005 | Australia | 60 years |
| Mark Arthur Ashton | Director | 31 Jul 2007 | 31 Dec 2008 | British | 63 years |
| Mark Brian Watt | Director | 3 Mar 2015 | 26 Mar 2015 | British | 58 years |
| Mark Richard Bourgeois | Director | 17 Mar 2017 | 11 Nov 2021 | British | 58 years |
| Martin Frederick Greenslade | Director | 22 Nov 2012 | 14 Mar 2014 | British | 61 years |
| Martin Plocica | Director | 26 Oct 2011 | 17 Mar 2017 | American | 64 years |
| Martin Richard Cooper | Director | 29 Sept 2006 | 28 Feb 2007 | English | 75 years |
| Mikjon Limited | Corporate Nominee Director | 31 Mar 1999 | 5 May 1999 | United Kingdom | - |
| Myles Bernard White | Director | 21 Jul 1999 | 29 Sept 2006 | British | 63 years |
| Neil Clive Varnham | Director | 21 Jul 1999 | 29 Sept 2006 | British | 69 years |
| Nicholas Alan Scott Hardie | Director | 30 Jan 2007 | 14 Oct 2011 | British | 71 years |
| Paolo Alonzi | Director | 3 Mar 2015 | 26 Mar 2015 | Italian | 54 years |
| Paul Justin Denby | Director | 11 Nov 2021 | 28 Apr 2023 | British | 55 years |
| Paul Wylie | Director | 28 Jul 2010 | 14 Nov 2014 | British | 58 years |
| Peter Frank Cooper | Director | 22 Nov 2012 | 30 Apr 2019 | British | 63 years |
| Peter James Cleary | Director | 18 Apr 2001 | 21 Jan 2003 | Irish | 69 years |
| Peter James Cleary | Director | 30 Oct 2007 | 3 Mar 2008 | Irish | 69 years |
| Peter Maxwell Dudgeon | Secretary | 5 May 1999 | 21 Jul 1999 | British | - |
| Peter William Beaumont Cole | Director | 5 Jul 2000 | 21 Jan 2003 | British | 67 years |
| Peter William Beaumont Cole | Director | 21 Jan 2003 | 31 Dec 2005 | British | 67 years |
| Richard Geoffrey Shaw | Director | 26 Oct 2011 | 25 Apr 2014 | British | 53 years |
| Richard John Akers | Director | 21 Jan 2003 | 28 Jul 2010 | English | 65 years |
| Robert Henry De Barr | Director | 5 May 1999 | 1 May 2007 | British | 76 years |
| Robert John Godwin Richards | Director | 21 Jul 1999 | 31 Dec 2005 | British | 70 years |
| Scott Cameron Parsons | Director | 14 Mar 2014 | 26 Mar 2015 | Canadian | 57 years |
| Stuart John Haydon | Secretary | 17 Oct 2006 | 22 Sept 2011 | British | - |
| Suzanne Penelope Clay | Director | 27 Jul 2011 | 26 Mar 2015 | British | 54 years |
| Thomas Cochrane | Director | 7 Aug 2020 | 19 May 2021 | British | 44 years |
| Warren Stuart Austin | Director | 25 Apr 2014 | 11 Nov 2021 | British | 60 years |