| Akira Suzuki | Director | 14 Aug 2017 | 29 May 2018 | Japanese | 66 years |
| Alexander Maxwell Crombie | Director | 30 Mar 2006 | 31 Dec 2009 | British | 76 years |
| Alison Clare Reed | Director | 30 Mar 2006 | 27 Oct 2006 | British | 69 years |
| Alison Mitchell | Director | 30 Mar 2006 | 29 May 2007 | British | 73 years |
| Brian James Mcbride | Director | 1 May 2020 | 10 May 2023 | British | 70 years |
| Brian John Stewart | Director | 30 Mar 2006 | 29 May 2007 | British | 80 years |
| Catherine Annick Caroline Bradley | Director | 4 Jan 2022 | 24 Apr 2024 | British | 66 years |
| Cecilia Reyes Leuzinger | Director | 1 Oct 2019 | 30 Sept 2022 | Swiss,filipino | 66 years |
| Colin Alexander Mason Buchan | Director | 1 Jan 2008 | 13 May 2014 | British | 71 years |
| Colin Martin Clark | Director | 1 Nov 2015 | 14 Aug 2017 | British | 66 years |
| Crawford Scott Gillies | Director | 1 Jan 2007 | 17 May 2016 | British | 69 years |
| D.w. Company Services Limited | Corporate Nominee Secretary | 30 Jun 2005 | 30 Mar 2006 | United Kingdom | - |
| D.w. Director 1 Limited | Corporate Nominee Director | 30 Jun 2005 | 30 Mar 2006 | United Kingdom | - |
| David John Grigson | Director | 1 Nov 2009 | 12 May 2015 | British | 71 years |
| David Thomas Nish | Director | 31 Oct 2006 | 5 Aug 2015 | British | 65 years |
| Elizabeth Noel Harwerth | Director | 20 Jul 2012 | 14 Aug 2017 | Anglo American | 78 years |
| Finbar Anthony O'dwyer | Director | 1 Mar 2017 | 14 Aug 2017 | Irish | 54 years |
| Gerald Edgar Grimstone | Director | 30 Mar 2006 | 31 Dec 2018 | British | 76 years |
| Gerhard Wilhelm Fusenig | Director | 14 Aug 2017 | 31 Dec 2018 | German | 62 years |
| Hugh Alexander Stevenson | Director | 30 Mar 2006 | 19 May 2008 | United Kingdom | 83 years |
| Isabel Frances Hudson | Director | 15 Oct 2014 | 24 Jun 2016 | British | 66 years |
| Jacqueline Hunt | Director | 14 May 2010 | 26 Apr 2013 | British | 57 years |
| Jocelyn Proteau | Director | 30 Mar 2006 | 15 May 2009 | Canadian | 78 years |
| John Francis Hylands | Director | 30 Mar 2006 | 31 Mar 2007 | British | 74 years |
| John Gregor Hugh Paynter | Director | 1 Jan 2012 | 28 Apr 2015 | British | 71 years |
| Julian Charles Baddeley | Secretary | 3 Oct 2022 | 17 May 2024 | - | - |
| Julie Chakraverty | Director | 14 Aug 2017 | 29 May 2018 | British | 54 years |
| Jutta Grevinde Af Rosenborg | Director | 14 Aug 2017 | 18 May 2022 | Danish | 67 years |
| Kenneth Arthur Gilmour | Secretary | 31 Oct 2014 | 30 Sept 2022 | - | - |
| Kevin Allen Huw Parry | Director | 27 Oct 2014 | 31 Dec 2018 | British | 63 years |
| Luke Savage | Director | 18 Aug 2014 | 14 Aug 2017 | British | 64 years |
| Lynne Margaret Peacock | Director | 1 Apr 2012 | 29 May 2018 | British | 72 years |
| Malcolm James Wood | Secretary | 30 Mar 2006 | 31 Oct 2014 | British | - |
| Manveen Kaur | Director | 1 Jun 2022 | 8 May 2025 | British | 61 years |
| Margaret Josephine Mcdonagh | Director | 1 Mar 2007 | 25 May 2012 | British | 64 years |
| Margaret Sheelagh Dillon Whittaker | Director | 1 Sept 2009 | 14 May 2013 | Canadian | 78 years |
| Martin James Gilbert | Director | 14 Aug 2017 | 12 May 2020 | British | 70 years |
| Martinclair Pike | Director | 27 Sept 2013 | 18 May 2022 | British | 64 years |
| Melanie Gee | Director | 1 Nov 2015 | 31 Oct 2021 | British | 64 years |
| Michael John O’brien | Director | 1 Jun 2022 | 24 May 2025 | Irish | 62 years |
| Michael Kent Atkinson | Director | 30 Mar 2006 | 31 Dec 2011 | English,brazilian | 80 years |
| Norman Keith Skeoch | Director | 25 May 2006 | 1 Sept 2020 | British | 69 years |
| Norman Roy Blackwell | Director | 30 Mar 2006 | 25 May 2012 | British | 73 years |
| Paul Bernard Mckenna | Secretary | 17 May 2024 | 12 Aug 2024 | - | - |
| Paul Stephen Matthews | Director | 1 Nov 2015 | 1 Mar 2017 | British | 65 years |
| Pierre Danon | Director | 20 Oct 2011 | 14 Aug 2017 | French | 69 years |
| Richard Stephen Mully | Director | 14 Aug 2017 | 14 May 2019 | British | 64 years |
| Roderick Louis Paris | Director | 14 Aug 2017 | 31 Dec 2019 | British | 66 years |
| Simon Richard Vivian Troughton | Director | 14 Aug 2017 | 14 May 2019 | British | 72 years |
| Stephanie Jane Bruce | Director | 1 Jun 2019 | 11 May 2023 | British | 57 years |
| Stephen Bird | Director | 1 Jul 2020 | 24 May 2024 | British | 58 years |
| Trevor John Matthews | Director | 30 Mar 2006 | 29 Jan 2008 | Australian | 73 years |
| William John Rattray | Director | 14 Aug 2017 | 31 May 2019 | British | 67 years |
