| Alain Gerard Edmond Bourguignon | Director | 1 Apr 2010 | 1 Mar 2011 | French | 67 years |
| Alan Henry Smith | Director | 2 Oct 2002 | 31 Aug 2006 | British | 70 years |
| David William Hilditch | Director | 15 Jul 2002 | 2 Oct 2002 | British | 80 years |
| David William Hilditch | Secretary | 15 Jul 2002 | 2 Oct 2002 | British | - |
| George William Bolsover | Director | 2 Oct 2002 | 31 Mar 2010 | British | 76 years |
| Inger Myfanwy Woolhouse | Secretary | 3 Jul 2002 | 15 Jul 2002 | British | - |
| James Lawrence Cousins | Director | 1 Apr 2014 | 9 Oct 2015 | British | 54 years |
| Keith Barker | Secretary | 2 Oct 2002 | 31 Aug 2006 | British | - |
| Mary Ford | Secretary | 31 Aug 2006 | 30 Mar 2012 | British | - |
| Michael Paul Pearce | Director | 21 Jul 2009 | 31 Jan 2013 | British | 62 years |
| Michael Richard Hilditch | Director | 15 Jul 2002 | 2 Oct 2002 | British | 80 years |
| Michael Richard Hilditch | Secretary | 15 Jul 2002 | 2 Oct 2002 | British | - |
| Nicholas Lander | Director | 1 Feb 2013 | 31 Mar 2014 | British | 48 years |
| Philip Roy Barltrop | Director | 2 Oct 2002 | 31 Dec 2006 | British | 71 years |
| Ralph Brander Cunningham | Director | 14 Dec 2006 | 30 Jun 2009 | British | 65 years |
| Robert Matthew Capper | Director | 3 Jul 2002 | 15 Jul 2002 | British | 53 years |
| Stl Directors Ltd. | Corporate Nominee Director | 16 May 2002 | 3 Jul 2002 | United Kingdom | - |
| Stl Secretaries Ltd. | Corporate Nominee Secretary | 16 May 2002 | 3 Jul 2002 | United Kingdom | - |
| Timothy John Hilditch | Director | 15 Jul 2002 | 2 Oct 2002 | British | 80 years |
| Timothy John Hilditch | Secretary | 15 Jul 2002 | 2 Oct 2002 | British | - |