| Alan Coxall | Director | 20 Mar 1992 | 1 Jun 1998 | British | 92 years |
| Antonius Adrianus Maria Verwijmeren | Director | 1 Oct 2004 | 6 Jul 2005 | Dutch | 63 years |
| Antonius Adrianus Maria Verwijmeren | Secretary | 5 Apr 1993 | 1 Oct 2004 | Dutch | - |
| Antonius Adrianus Maria Verwijmeren | Secretary | 6 Jul 2005 | 12 Sept 2014 | Dutch | - |
| Clive Stuart Piller | Director | 20 Nov 1998 | 30 Apr 2000 | British | 69 years |
| Jacobus Albertus Maria Van Der Staak | Director | 11 Mar 2015 | 13 Nov 2023 | Dutch | 57 years |
| John Stephen Masters | Director | 1 Jun 1998 | 30 Jun 1999 | British | 69 years |
| John William Szumski | Director | 23 Dec 2011 | 1 Mar 2015 | American | 79 years |
| Jordan Company Secretaries Limited | Corporate Nominee Secretary | 1 Sept 1999 | 18 Jan 2017 | United Kingdom | - |
| Keith Thomas Daly | Director | 6 Jul 2005 | 16 Aug 2007 | American | 73 years |
| Lewis Phillip Kimble | Director | 31 Jan 2010 | 1 Apr 2019 | American | 67 years |
| Matthew Dominick Serra | Director | 1 May 2003 | 16 Jul 2007 | American | 81 years |
| Michael George Zawoysky | Director | 1 Nov 2004 | 1 Sept 2006 | American | 68 years |
| Patrick Dominic Galvin | Director | 1 Apr 2000 | 31 Oct 2002 | Irish | 58 years |
| Paul John Albretts | Director | 20 Mar 1992 | 1 Aug 1994 | Usa | 79 years |
| Peter Philipp Franks | Director | 30 Jun 1999 | 31 Mar 2000 | British | 65 years |
| Richard Allen Johnson | Director | 16 Aug 2007 | 31 Jan 2010 | British | 67 years |
| Rita Magdalena Julienne Schroeven | Secretary | 1 Oct 2004 | 6 Jul 2005 | Belgian | - |
| Robert Paulus De Meij | Secretary | 20 Mar 1992 | 5 Apr 1993 | Dutch | - |
| Roeland Martinus Van Der Hoeven | Director | 31 Jan 2010 | 1 Apr 2012 | British | 50 years |
| Sharon Ann Mclaughlin | Secretary | 12 Sept 2014 | 22 Jan 2018 | - | - |
| Simon Charles Deane Rider | Director | 1 Sept 1999 | 1 May 2003 | British | 70 years |
| Steven Mickael Bieg | Secretary | 5 Feb 2018 | 14 Dec 2021 | - | - |
| Sumit Chaudhary | Secretary | 14 Dec 2021 | 13 Nov 2023 | - | - |
| Susan Jane Kuhn | Director | 14 Dec 2021 | 1 Mar 2023 | American | 50 years |
| Terry Lynn Talley | Director | 31 Oct 2002 | 5 Apr 2004 | American | 82 years |
| Thomas John Slover | Director | 1 May 2003 | 6 Jul 2005 | American | 78 years |
| Thomas Philip Mabbett | Director | 1 Sept 2006 | 31 Jan 2010 | British | 75 years |
| Tomas Conny Petersson | Director | 13 Nov 2023 | 1 Aug 2025 | Swedish | 50 years |
| Vijay Talwar | Director | 1 Apr 2019 | 14 Dec 2021 | American | 54 years |
