| Alan James Cullens | Director | 11 Apr 2016 | 16 Aug 2024 | British | 63 years |
| Alfred Newton | Director | 8 Jun 2009 | 17 Apr 2012 | American | 69 years |
| Andrew Robert Krok Paszkowski | Director | 7 Oct 2005 | 4 Dec 2006 | British | 70 years |
| Anthony Richard Webb | Director | 9 Nov 2007 | 31 May 2008 | British | 67 years |
| Ashley Louise Gerrard | Secretary | 4 Nov 2016 | 28 Sept 2017 | - | - |
| Barry Peter Moloney | Director | 7 Oct 2005 | 28 May 2012 | British | 69 years |
| Catherine Elizabeth Lindsay | Secretary | 4 Nov 2016 | 28 Sept 2017 | - | - |
| Charles Iain Oliver | Secretary | 9 Nov 2007 | 23 Nov 2010 | British | - |
| David Lindsay | Director | 15 Aug 2005 | 7 Oct 2005 | British | 71 years |
| Graham Raw | Director | 7 Oct 2005 | 15 May 2009 | British | 68 years |
| Hackwood Directors Limited | Corporate Nominee Director | 25 May 2005 | 15 Aug 2005 | United Kingdom | - |
| Hackwood Secretaries Limited | Corporate Nominee Secretary | 25 May 2005 | 15 Aug 2005 | United Kingdom | - |
| Heath Stewart Drewett | Director | 11 Apr 2016 | 15 Dec 2017 | British | 60 years |
| Helen Alice Baker | Secretary | 11 Apr 2016 | 4 Nov 2016 | - | - |
| Ian James Robert Bowes | Director | 25 Feb 2011 | 11 Apr 2016 | British | 71 years |
| Jamestown Investments Limited | Corporate Secretary | 3 Jul 2006 | 4 Dec 2006 | United Kingdom | - |
| Jill Sharon Pain | Director | 7 Oct 2005 | 15 May 2009 | British | 64 years |
| Jill Sharon Pain | Secretary | 23 Nov 2010 | 16 Aug 2011 | - | - |
| Jill Sharon Pain | Secretary | 10 Jun 2015 | 11 Apr 2016 | - | - |
| John Francis Sidney Milsom | Director | 7 Oct 2005 | 17 Feb 2006 | British | 79 years |
| Keith John Russell | Director | 15 Aug 2005 | 20 Oct 2005 | British | 71 years |
| Keith John Russell | Secretary | 15 Aug 2005 | 20 Oct 2005 | British | - |
| Mark Morant | Director | 8 Jun 2009 | 1 Jun 2011 | British | 69 years |
| Mark Stephen Anderson | Director | 1 Sept 2017 | 17 May 2021 | British | 61 years |
| Michael James Gull | Director | 5 Sept 2014 | 11 Apr 2016 | British | 59 years |
| Philip Orman Strawbridge | Director | 1 Dec 2006 | 8 Jun 2009 | American | 72 years |
| Ralph Nicholas Forster | Director | 20 Oct 2005 | 4 Dec 2006 | British | 82 years |
| Ralph Nicholas Forster | Secretary | 20 Oct 2005 | 3 Jul 2006 | British | - |
| Richard James Waite | Director | 1 Jun 2011 | 29 Jul 2014 | British | 68 years |
| Richard Tooze | Director | 1 Dec 2006 | 9 Nov 2007 | British | 67 years |
| Richard Webster | Secretary | 11 Apr 2016 | 4 Nov 2016 | - | - |
| Richard Webster | Director | 11 Apr 2016 | 31 Aug 2017 | British | 52 years |
| Simon Paton Stuttaford | Secretary | 16 Aug 2011 | 10 Jun 2015 | - | - |
| Timothy Charles Dowling | Director | 7 Oct 2005 | 15 May 2009 | British | 58 years |
| Timothy John Joyce | Director | 9 Nov 2007 | 7 Dec 2017 | British | 66 years |
| Val J Christensen | Director | 9 Nov 2007 | 8 Jun 2009 | American | 73 years |
| Val J Christensen | Secretary | 1 Dec 2006 | 9 Nov 2007 | American | - |
