| Adrian Joseph Morris Levy | Director | 9 Dec 2004 | 24 Jan 2005 | British | 56 years |
| Andrew Stephen James Ramsay | Director | 24 Jan 2005 | 8 Aug 2007 | British | 65 years |
| Andrew Stephen James Ramsay | Secretary | 24 Jan 2005 | 3 Feb 2011 | British | - |
| Clifford Chance Secretaries Limited | Corporate Nominee Secretary | 9 Dec 2004 | 24 Jan 2005 | United Kingdom | - |
| Clive John Warden | Director | 28 Feb 2014 | 31 Mar 2016 | British | 67 years |
| David George Alcock | Director | 1 Dec 2010 | 10 Jan 2018 | British | 61 years |
| David John Pudge | Nominee Director | 9 Dec 2004 | 24 Jan 2005 | British | 61 years |
| Gareth Neil Griffiths | Director | 8 Aug 2007 | 31 Jul 2012 | British | 57 years |
| Hillary Sue Berger | Secretary | 31 Jan 2012 | 1 Jan 2016 | - | - |
| Hiromu Kayamori | Director | 15 Nov 2017 | 25 Apr 2018 | Japanese | 54 years |
| Hiroyuki Koga | Director | 21 Jun 2011 | 8 Aug 2011 | Japanese | 66 years |
| Isao Kajimura | Director | 8 Aug 2011 | 30 Jun 2015 | Japanese | 57 years |
| Masaaki Furukawa | Director | 31 Dec 2008 | 1 Dec 2010 | Japanese | 70 years |
| Matteo Maria Maino | Director | 31 Mar 2016 | 1 Jan 2018 | British | 61 years |
| Michael Stuart Baker | Director | 31 Jul 2012 | 28 Feb 2014 | British | 62 years |
| Penelope Louise Small | Director | 24 Jan 2005 | 25 Mar 2010 | British | 60 years |
| Peter George Barlow | Director | 8 Aug 2007 | 24 Jun 2009 | British | 73 years |
| Ro Okaniwa | Director | 16 Oct 2017 | 15 Nov 2017 | Japanese | 63 years |
| Roger Derek Simpson | Secretary | 3 Feb 2011 | 18 May 2016 | - | - |
| Sarah Louise Smith | Director | 25 Mar 2010 | 31 Jan 2012 | British | 57 years |
| Shigeaki Ihara | Director | 1 Jul 2015 | 16 Oct 2017 | Japanese | 53 years |
| Stephen Riley | Director | 8 Aug 2007 | 25 Mar 2010 | British | 65 years |
| Steven Drapper | Director | 25 Mar 2010 | 1 Dec 2010 | British | 64 years |
| Takashi Umezu | Director | 1 Feb 2006 | 31 Dec 2008 | British | 71 years |
| Toru Takahashi | Director | 1 Dec 2010 | 21 Jun 2011 | Japanese | 59 years |
| Toru Takahashi | Director | 1 Dec 2010 | 21 Jun 2011 | Japanese | 59 years |
| Toru Takahashi | Director | 1 Dec 2010 | 8 Aug 2011 | Japanese | 59 years |