| Alexander Brian Cooper Short | Director | 14 Sept 2006 | 26 May 2008 | British | 59 years |
| Alexander Grant Gordon | Director | 30 Oct 1991 | 23 Dec 1992 | British | 95 years |
| Andrew Stuart Mclean | Director | 22 May 2008 | 11 Jul 2014 | British | 57 years |
| Anthony Leonard Hunt | Director | 7 Apr 1998 | 9 Feb 2006 | British | 80 years |
| Catriona Ann Macritchie | Director | 26 Apr 2022 | 31 May 2024 | British | 60 years |
| Christopher Nicholas John Conway | Director | 24 Jul 1999 | 8 Oct 2001 | British | 64 years |
| Derek Hamilton Anderson | Director | 30 Oct 1991 | 24 Jul 1999 | British | 76 years |
| George Daniel Tait | Director | 17 Jun 2005 | 2 May 2008 | British | 73 years |
| George Daniel Tait | Secretary | 27 Sept 1996 | 2 May 2008 | British | - |
| Grant Edward Gordon | Director | 30 Oct 1991 | 24 Jul 1999 | British | 70 years |
| Gregory Justin Bargeton | Director | 11 Jul 2014 | 30 Sept 2020 | British | 53 years |
| Heather Claire Graham | Director | 8 Oct 2001 | 7 Jan 2009 | British | 69 years |
| James Allan Denholm | Director | 30 Oct 1991 | 23 Dec 1992 | British | 90 years |
| James Allan Denholm | Secretary | 30 Oct 1991 | 27 Sept 1996 | British | - |
| James Graham Beveridge | Director | 30 Oct 1991 | 24 Jul 1999 | British | 89 years |
| Kerry Lee Christie | Director | 30 Sept 2020 | 31 Aug 2022 | British | 59 years |
| Md Directors Limited | Corporate Nominee Director | 1 Oct 1991 | 30 Oct 1991 | United Kingdom | - |
| Md Secretaries Limited | Corporate Nominee Director | 30 Oct 1991 | 30 Oct 1991 | United Kingdom | - |
| Md Secretaries Limited | Corporate Nominee Secretary | 1 Oct 1991 | 30 Oct 1991 | United Kingdom | - |
| Michael Lamont | Director | 24 Jul 1999 | 4 Oct 2000 | British | 66 years |
| Patrick Marie Charles Thomas | Director | 15 Jun 2000 | 16 Apr 2003 | French | 79 years |
| Paul Henry Rochford | Director | 1 Jan 2007 | 25 Sept 2009 | British | 63 years |
| Paul Nigel Wickman | Director | 24 Jul 1999 | 31 Dec 2006 | British | 71 years |