| Alan Wilson | Secretary | 6 May 1999 | 26 Jul 2002 | British | - |
| Alexander George Bremner | Director | 7 Jul 2010 | 29 Nov 2011 | British | 72 years |
| David William Chambers | Director | 6 May 1999 | 3 Sept 2006 | British | 62 years |
| Gavin Ingle | Director | 7 Nov 2016 | 31 Jan 2024 | British | 50 years |
| Iain Allan Macdonald | Director | 18 Jun 2002 | 29 Apr 2005 | British | 65 years |
| Ian Pattison | Secretary | 29 Apr 2016 | 12 Feb 2020 | - | - |
| Ion Bruce Balfour | Director | 25 Oct 2013 | 31 Oct 2014 | British | 63 years |
| Ivan Hong Yee Wong | Director | 1 Mar 2007 | 10 Jun 2008 | British | 47 years |
| John Martin Burnett | Director | 22 Jun 2000 | 14 Mar 2008 | British | 74 years |
| Karen Marie Hill | Director | 27 Nov 2009 | 6 Jul 2010 | British | 49 years |
| Karen Marie Hill | Director | 29 Nov 2011 | 11 Jun 2021 | British | 49 years |
| Martin Timothy Smith | Director | 29 Apr 2005 | 27 Nov 2009 | British | 59 years |
| Michael Andrew Donn | Director | 10 Jun 2008 | 25 Oct 2013 | British | 54 years |
| Michael Howard Bales | Secretary | 26 Jul 2002 | 29 Apr 2016 | British | - |
| Mohammed Sameer Amin | Director | 18 Jun 2002 | 20 Oct 2004 | British | 53 years |
| Nicholas Jeremy Wakefield | Director | 6 May 1999 | 18 Jun 2002 | British | 79 years |
| Pinsent Masons Director Limited | Corporate Nominee Director | 4 Feb 1999 | 6 May 1999 | United Kingdom | - |
| Pinsent Masons Secretarial Limited | Corporate Nominee Secretary | 4 Feb 1999 | 6 May 1999 | United Kingdom | - |
| Richard John Taylor | Director | 18 Jun 2002 | 19 Aug 2016 | British | 80 years |
| Robert John Vickers | Director | 6 Feb 2017 | 28 Jun 2019 | British | 70 years |
| Roy Butcher | Director | 11 May 1999 | 1 Mar 2007 | British | 78 years |
| Stephen Frederick Martin | Director | 1 Mar 2007 | 31 Jan 2017 | British | 60 years |
| Stephen John Radcliffe | Director | 3 Dec 2007 | 3 Dec 2020 | British | 71 years |
| Stewart Arthur Tilley | Director | 6 May 1999 | 22 Jun 2000 | British | 80 years |
| Terence Ryan | Director | 11 Jun 2021 | 31 Jan 2024 | British | 69 years |