| Adrian James Macandrew Coats | Director | 16 Mar 1993 | 24 Aug 2004 | British | 71 years |
| Akira Amano | Director | 18 Mar 1997 | 31 Aug 2001 | Japanese | 77 years |
| Akira Asakura | Director | 7 Feb 1992 | 31 Aug 2001 | Japanese | 92 years |
| Alan Alexander Bryce | Director | 31 Mar 2003 | 2 May 2005 | British | 66 years |
| Andrew Philip | Secretary | 1 Sept 2014 | 18 Feb 2019 | - | - |
| Angus Stuart Armstrong | Secretary | 18 Feb 2019 | 21 Dec 2021 | - | - |
| Austen Paul Hamilton | Director | 7 Feb 1992 | 16 Mar 1993 | British | 77 years |
| Catherine Syme | Secretary | 14 Mar 1997 | 31 Dec 1998 | British | - |
| David Macleod | Secretary | 1 Nov 1993 | 23 Oct 1993 | British | - |
| David Macleod | Secretary | 23 Oct 1994 | 14 Mar 1997 | British | - |
| David Neil Morrison | Director | 2 May 2005 | 30 Jul 2007 | British | 68 years |
| David Rhodes | Secretary | 1 May 2004 | 17 Mar 2006 | British | - |
| Emilio Hernandez | Secretary | 6 Oct 2010 | 10 Jul 2012 | British | - |
| Eric Stanley Golland | Director | 9 Apr 1999 | 19 Feb 2002 | British | 81 years |
| Fiona Coyle | Secretary | 21 Dec 2021 | 9 Aug 2023 | - | - |
| Fumihisa Seo | Director | 10 Sept 2014 | 21 Mar 2017 | Japanese | 45 years |
| Grace Ann Buckley | Secretary | 1 Oct 2001 | 30 Apr 2004 | British | - |
| Heather Chalmers White | Director | 18 Feb 2019 | 4 Oct 2023 | British | 62 years |
| Hidenori Mitsuoka | Director | 18 Feb 2009 | 30 Apr 2013 | Japanese | 61 years |
| Hidenori Mitsuoka | Director | 28 Aug 2019 | 1 Sept 2021 | Japanese | 61 years |
| Huntsmoor Nominees Limited | Corporate Nominee Secretary | 7 Feb 1992 | 20 Jan 1993 | United Kingdom | - |
| Instant Companies Limited | Corporate Nominee Director | 23 Oct 1991 | 7 Feb 1992 | United Kingdom | - |
| James Malcolm Paterson | Director | 10 Dec 2021 | 15 Mar 2024 | British | 53 years |
| John Heasley | Director | 31 Mar 2003 | 23 Dec 2005 | British | 52 years |
| John Matthew | Director | 1 Dec 2003 | 30 Sept 2005 | British | 66 years |
| John Matthew | Secretary | 5 Jan 1999 | 1 Oct 2001 | British | - |
| Jonathan Thomas Kirkwood Cole | Director | 19 Feb 2008 | 1 Jun 2011 | British | 49 years |
| Jonathan Thomas Kirkwood Cole | Secretary | 24 Oct 2008 | 6 Oct 2010 | British | - |
| Junichi Tsuruta | Director | 21 May 2008 | 1 May 2014 | Japanese | 68 years |
| Keith Stuart Anderson | Director | 23 Dec 2005 | 6 Oct 2010 | British | 62 years |
| Kenneth Leslie Vowles | Director | 16 Mar 1993 | 9 Apr 1999 | British | 84 years |
| Kenneth Peberdy | Director | 13 May 2015 | 23 Mar 2018 | British | 66 years |
| Kunihiko Okuma | Director | 30 Sept 2005 | 1 Jun 2011 | Japanese | 53 years |
| Malcolm Cameron Garrity | Director | 6 Feb 2007 | 21 May 2008 | British | 70 years |
| Marie Isobel Ross | Secretary | 26 Oct 2007 | 6 Oct 2008 | British | - |
| Michael Andrew Johnson | Secretary | 20 Jan 1993 | 1 Nov 1993 | British | - |
| Michio Ishidate | Director | 23 Oct 1993 | 23 Oct 1994 | Japanese | 86 years |
| Minoru Saito | Director | 11 Dec 2000 | 6 Feb 2007 | Japanese | 71 years |
| Motoyasu Sakamoto | Director | 21 Aug 2003 | 18 Feb 2009 | Japanese | 58 years |
| Niels Leegaard Rydder | Director | 7 Feb 1992 | 16 Mar 1993 | Danish | 74 years |
| Norimichi Fujiwara | Director | 1 Nov 1993 | 23 Oct 1993 | Japanese | 79 years |
| Norimichi Fujiwara | Director | 23 Oct 1994 | 18 Mar 1997 | Japanese | 79 years |
| Peter Malcolm Cannell | Director | 16 Mar 1993 | 3 Mar 1997 | British | 73 years |
| Rhona Gregg | Secretary | 17 Mar 2006 | 4 Sept 2007 | British | - |
| Richard Leslie Isted | Director | 24 Mar 1998 | 31 May 2001 | British | 77 years |
| Roger Seshan | Director | 30 Jul 2007 | 19 Feb 2008 | British | 56 years |
| Ronnie Edward Mercer | Director | 3 Mar 1997 | 24 Mar 1998 | British | 82 years |
| Roy Scott | Director | 6 Oct 2010 | 31 Jan 2019 | British | 62 years |
| Seumus O'gorman | Secretary | 10 Jul 2012 | 1 Sept 2014 | British | - |
| Sheelagh Jane Duffield | Secretary | 4 Sept 2007 | 26 Oct 2007 | British | - |
| Shigeto Nakamura | Director | 18 Sept 1998 | 11 Dec 2000 | Japanese | 76 years |
| Shohei Yasuda | Director | 30 Apr 2013 | 10 Sept 2014 | Japanese | 57 years |
| Shohei Yasuda | Director | 31 Aug 2001 | 30 Nov 2003 | Japan | 57 years |
| Simon Gower Christian | Director | 24 Aug 2004 | 31 Mar 2015 | British | 67 years |
| Stephen John Tivadar Balint | Director | 1 Nov 1999 | 31 Mar 2003 | British | 72 years |
| Stuart Mason | Director | 6 Sept 2018 | 7 Oct 2021 | British | 61 years |
| Susan Mary Reilly | Director | 19 Feb 2002 | 31 Mar 2003 | British | 65 years |
| Swift Incorporations Limited | Corporate Nominee Secretary | 23 Oct 1991 | 7 Feb 1992 | United Kingdom | - |
| Tetsuya Suwabe | Director | 21 Mar 2017 | 21 Aug 2019 | Japanese | 56 years |
| Toshio Hori | Director | 15 Mar 1993 | 20 Aug 2003 | Japanese | 85 years |
| Yasuyuki Kaneko | Director | 1 May 2014 | 21 Mar 2017 | Japanese | 59 years |