| Alun Hughes Griffiths | Director | 14 Dec 2006 | 30 Jul 2014 | British | 72 years |
| Ashley Louise Gerrard | Secretary | 4 Nov 2016 | 28 Sept 2017 | - | - |
| Catherine Elizabeth Lindsay | Secretary | 4 Nov 2016 | 28 Sept 2017 | - | - |
| Colin Gordon Hobkirk | Director | 19 Aug 1997 | 1 Dec 1997 | British | 64 years |
| Heath Stewart Drewett | Director | 19 Jun 2009 | 15 Dec 2017 | British | 60 years |
| Helen Alice Baker | Secretary | 1 Jan 2008 | 4 Nov 2016 | British | - |
| Iain Smith & Company | Corporate Nominee Secretary | 19 Aug 1997 | 14 Dec 2006 | - | - |
| Ian Cameron Matheson | Director | 1 Dec 1997 | 14 Dec 2006 | British | 61 years |
| Ian Robert Purser | Director | 14 Dec 2006 | 30 Jun 2011 | British | 75 years |
| Malcolm Carr | Director | 1 Dec 1997 | 14 Dec 2006 | British | 66 years |
| Philip Stephen James Davis | Secretary | 14 Dec 2006 | 30 Sept 2007 | British | - |
| Richard Webster | Director | 1 Jan 2012 | 31 Aug 2017 | British | 52 years |
| Richard Webster | Secretary | 14 Dec 2006 | 4 Nov 2016 | British | - |
| Robert James Macleod | Director | 14 Dec 2006 | 19 Jun 2009 | British | 62 years |
| Stephen Wallace Booth | Director | 29 Jan 1998 | 14 Dec 2006 | British | 67 years |
| Steven Johnson | Director | 1 Jul 2011 | 30 Nov 2011 | British | 77 years |
| Stuart Ian Mcintyre | Director | 1 Dec 1997 | 14 Dec 2006 | British | 63 years |