| Aart Dane | Director | 27 Jun 2014 | 16 Apr 2018 | Dutch | 54 years |
| Abdul Hamid | Director | 9 May 2017 | 29 Oct 2021 | British | 60 years |
| Alan Edward Birch | Director | 2 Jul 2003 | 27 Aug 2004 | British | 56 years |
| Alan Edward Birch | Director | 8 Nov 2004 | 7 Dec 2006 | British | 56 years |
| Alan Edward Birch | Director | 1 Dec 2007 | 11 Feb 2014 | British | 56 years |
| Alison Tracey Buttery | Secretary | 17 Aug 1999 | 17 Sept 1999 | British | - |
| Andrew John Sutton | Director | 2 Aug 2001 | 11 Feb 2004 | British | 70 years |
| Barry Simon Williams | Director | 22 Dec 2005 | 14 Aug 2007 | British | 56 years |
| Bruce Warren Dalgleish | Director | 22 Dec 2005 | 7 Dec 2006 | British | 59 years |
| Bryan Robin Geoffrey Gilbert Smith | Director | 24 Jan 2001 | 28 Jun 2002 | British | 82 years |
| Christopher John Blundell | Director | 6 Jan 2023 | 29 Aug 2025 | British | 60 years |
| David Francis Lindesay | Director | 2 Jan 2008 | 1 Oct 2008 | British | 66 years |
| David Robert Hardingham | Director | 30 Dec 2011 | 8 Apr 2016 | British | 52 years |
| E P S Secretaries Limited | Corporate Nominee Secretary | 16 Jul 1999 | 17 Aug 1999 | - | - |
| Geoffrey Keith Howard Mason | Director | 1 Nov 2000 | 14 Feb 2003 | British | 72 years |
| Henry Lafferty | Director | 17 Aug 1999 | 2 Aug 2001 | British | 73 years |
| Mikjon Limited | Corporate Nominee Director | 16 Jul 1999 | 17 Aug 1999 | United Kingdom | - |
| Neil Rae | Director | 11 Feb 2014 | 1 Nov 2022 | British | 55 years |
| Patrick Hugh Gardiner | Director | 17 Aug 1999 | 24 Jan 2001 | British | 77 years |
| Patrick Hugh Gardiner | Director | 14 Feb 2003 | 7 Jun 2004 | British | 77 years |
| Paul George Milner | Director | 9 Jan 2001 | 24 Jan 2001 | British | 65 years |
| Paul George Milner | Director | 7 Jun 2004 | 15 Jun 2004 | British | 65 years |
| Paul Mcculloch | Director | 8 Nov 2004 | 18 Dec 2006 | British | 61 years |
| Peter Miles Richardson | Director | 17 Aug 1999 | 8 Nov 2000 | British | 72 years |
| Richard Little | Director | 8 Apr 2016 | 5 Nov 2018 | British | 47 years |
| Robert Hugh Corrie Rees | Director | 22 Dec 2005 | 2 Jan 2008 | British | 65 years |
| Robert Nigel Johnson | Director | 11 Feb 2004 | 15 Jun 2004 | British | 68 years |
| Robert Sean Mcclatchey | Director | 24 Jan 2001 | 22 Dec 2005 | British | 61 years |
| Robert Shekleton | Director | 16 Jan 2001 | 24 Jan 2001 | British | 70 years |
| Robert William Kendall | Director | 17 Aug 1999 | 8 Nov 2000 | British | 73 years |
| Russell James Winchester Manley | Director | 1 Oct 2008 | 30 Dec 2011 | British | 60 years |
| Secretariat Services Limited | Corporate Secretary | 17 Sept 1999 | 1 Sept 2005 | United Kingdom | - |
| William Robert Doughty | Director | 26 Aug 2004 | 2 Jan 2008 | British | 58 years |