| Aberdeen Asset Management Plc | Corporate Secretary | 20 Oct 2000 | 25 May 2004 | - | - |
| Aberdeen Asset Management Plc | Corporate Secretary | 30 May 2008 | 1 May 2020 | - | - |
| Ancosec Limited | Corporate Secretary | 25 Jun 2007 | 30 May 2008 | United Kingdom | - |
| Andrew John Creighton | Director | 20 Sept 2012 | 14 Aug 2018 | British | 57 years |
| Andrew Paul Ross Thomson | Director | 2 Mar 1999 | 5 Aug 2005 | British | 63 years |
| Andrew Richard Ingram Smith | Director | 30 Mar 2012 | 15 Nov 2013 | British | 62 years |
| Anne Elizabeth Lucking | Director | 20 Jun 2001 | 8 Mar 2004 | British | 67 years |
| Barcosec Limited | Corporate Director | 22 Jul 1998 | 20 Oct 2000 | United Kingdom | - |
| Barcosec Limited | Corporate Secretary | 22 Jul 1998 | 20 Oct 2000 | United Kingdom | - |
| Barometers Limited | Corporate Director | 22 Jul 1998 | 20 Oct 2000 | United Kingdom | - |
| Barry Weal | Director | 14 Sept 1993 | 22 Jul 1998 | British | 73 years |
| Brian Christopher Gage | Director | 2 Mar 1999 | 31 Jan 2001 | British | 77 years |
| Brian John Handley | Director | 23 Apr 1991 | 31 Aug 1991 | British | 82 years |
| Charles Frederick Shoolbred | Secretary | 23 Apr 1992 | 22 Jul 1998 | British | - |
| Charles Paul Rowan | Director | 23 Aug 1996 | 22 Jul 1998 | British | 64 years |
| David Glynne Lewis | Director | 23 Apr 1991 | 14 Sept 1993 | British | 69 years |
| David Ian Hunter | Director | 10 Dec 2003 | 6 Apr 2005 | British | 72 years |
| David Mark Johnston Duffield | Secretary | 25 May 2004 | 25 Jun 2007 | British | - |
| Debbie Ann Smith | Director | 30 May 2008 | 30 Mar 2012 | British | 62 years |
| Debbie Ann Smith | Director | 17 Dec 2013 | 29 Apr 2016 | British | 62 years |
| Duncan John Rowberry | Director | 23 Aug 1996 | 22 Jul 1998 | British | 66 years |
| Geoffrey Grodner | Director | 28 Mar 2001 | 20 Jun 2001 | British | 64 years |
| Giles Easter | Director | 17 Dec 2013 | 3 Aug 2015 | British | 54 years |
| Graham David Hardie | Director | 30 Mar 2012 | 14 Aug 2018 | British | 64 years |
| Graham Good | Director | 20 Oct 2000 | 20 Jun 2001 | British | 76 years |
| Hamish Kenneth Donaldson (jack) Mcallister | Director | 28 Mar 2001 | 20 Jun 2001 | British | 77 years |
| Hugh Malcolm Bolton | Director | 17 Dec 2013 | 29 Apr 2016 | British | 52 years |
| Iain Andrew Reid | Director | 2 Mar 1999 | 10 Dec 2003 | British | 79 years |
| Jeffrey Mark Pulsford | Director | 25 May 2004 | 30 May 2008 | British | 66 years |
| John Colin Hopkin | Director | 31 Aug 1991 | 22 Jul 1998 | British | 78 years |
| John Patrick O'connor | Director | 30 Mar 2012 | 29 Jun 2012 | British | 78 years |
| Jonathan Martin Austen | Director | 30 Sept 2006 | 30 May 2008 | British | 69 years |
| Kathryn Anne Coxhead | Secretary | 23 Apr 1991 | 13 Dec 1991 | British | - |
| Keith Large | Director | 23 Apr 1991 | 15 Aug 1997 | British | 70 years |
| Mark Brian Watt | Director | 14 Aug 2018 | 16 Oct 2020 | British | 57 years |
| Martin James Gilbert | Director | 20 Oct 2000 | 3 Mar 2003 | British | 70 years |
| Martyn Gerald Mccarthy | Director | 30 Mar 2012 | 31 Mar 2014 | British | 69 years |
| Nicholas James Patrick Ireland | Director | 16 Oct 2020 | 31 Oct 2022 | British | 57 years |
| Patrick Deigman | Director | 25 May 2004 | 30 Sept 2006 | British | 73 years |
| Tenon Nominees Limited | Corporate Director | 30 May 2008 | 30 Mar 2012 | United Kingdom | - |
| Timothy Simon Winslow | Director | 28 Mar 2001 | 30 Mar 2012 | British | 78 years |