| Alan Victor Middlemist Donoghue | Director | 16 Jun 1999 | 13 Dec 2006 | British | 71 years |
| Catherine Scott Turnbull | Director | 18 Mar 2013 | 24 Mar 2016 | British | 74 years |
| Donald Gilmour Sutherland | Director | 6 Dec 1996 | 16 Jun 1999 | British | 85 years |
| Edward Timothy Razzall | Director | 6 Dec 1996 | 16 Jun 1999 | British | 82 years |
| Forsters Secretaries Limited | Corporate Secretary | 7 Oct 1998 | 1 Jul 1999 | United Kingdom | - |
| John Pitkeathly Percy | Director | 31 Jan 2001 | 31 Mar 2012 | British | 83 years |
| Legist Directors Limited | Corporate Nominee Director | 19 Sept 1996 | 6 Dec 1996 | United Kingdom | - |
| Legist Secretaries Limited | Corporate Nominee Secretary | 19 Sept 1996 | 7 Oct 1998 | United Kingdom | - |
| Md Secretaries Limited | Corporate Nominee Secretary | 1 Jul 1999 | 1 Jul 2009 | United Kingdom | - |
| Michael John Freshney | Director | 17 Dec 2009 | 18 Mar 2013 | British | 82 years |
| Michael John Whittles | Director | 6 Dec 1996 | 30 Mar 1999 | British | 82 years |
| Michael Ronald John Pacitti | Director | 6 Mar 2012 | 18 Mar 2013 | British | 66 years |
| Moira Ramsay Sibbald | Director | 18 Mar 2013 | 13 Mar 2018 | Scottish | 67 years |
| Moira Ramsay Sibbald | Secretary | 1 Jul 2009 | 4 Apr 2016 | Scottish | - |
| Neil John Stoddart | Director | 3 Mar 2021 | 1 Sept 2025 | British | 56 years |
| Richard Alexander Walbourn | Director | 9 Jun 2016 | 28 Mar 2022 | British | 60 years |
| Richard Guy Thomas Stenhouse | Director | 2 May 2000 | 21 Dec 2009 | British | 64 years |
| Robert John Westwater Dick | Director | 16 Jun 1999 | 31 Jan 2001 | British | 70 years |
