| Alison Louise Gough | Director | 13 Jul 1999 | 10 Mar 2003 | British | 63 years |
| Alison Louise Gough | Secretary | 7 Dec 1998 | 6 Jul 1999 | Australian | - |
| Allan Donald Chisholm | Director | 24 Mar 1997 | 31 Dec 2001 | British | 81 years |
| Capita Company Secretarial Services Limited | Corporate Secretary | 1 Sept 2013 | 28 Aug 2015 | United Kingdom | - |
| Craig Stephen Matheson | Director | 2 Feb 2006 | 23 Jul 2007 | New Zealand | 59 years |
| Craig Stephen Matheson | Director | 18 Jun 2009 | 5 Aug 2009 | New Zealand | 59 years |
| David Keith Perry | Director | 22 Aug 2002 | 10 Feb 2006 | British | 66 years |
| David Stewart Hutton | Director | 22 Jun 2000 | 22 Aug 2002 | Australian | 64 years |
| Derryn Sue Arthur | Director | 15 Dec 1998 | 28 Apr 2000 | New Zealander | 63 years |
| Digby Stuart Nicklin | Director | 23 Jul 2007 | 1 May 2009 | British | 57 years |
| Hackwood Directors Limited | Corporate Nominee Director | 6 Jan 1997 | 7 Mar 1997 | United Kingdom | - |
| Hackwood Secretaries Limited | Corporate Nominee Secretary | 6 Jan 1997 | 7 Mar 1997 | United Kingdom | - |
| Herbert William Martin | Director | 22 Aug 2002 | 18 Apr 2008 | British | 71 years |
| Ian Marshall | Director | 1 Aug 1997 | 15 Oct 1999 | British | 79 years |
| Keith Redshaw | Director | 20 Nov 2008 | 18 Jun 2009 | British | 80 years |
| Neil Christopher Martin | Secretary | 22 Sept 2003 | 13 Jan 2005 | British | - |
| Patricia Margaret Davidson | Secretary | 6 Jul 1999 | 10 Mar 2003 | British | - |
| Penelope Ruth Sutton | Secretary | 4 Sept 1997 | 7 Dec 1998 | British | - |
| Peter Walichnowski | Director | 7 Mar 1997 | 30 Jun 2000 | Australian | 71 years |
| Rebecca Jayne Seeley | Director | 19 Dec 2016 | 2 Jul 2018 | British | 46 years |
| Richard Andrew Coppell | Director | 5 Aug 2009 | 12 Dec 2014 | British | 59 years |
| Richard Malcolm Cable | Director | 14 Oct 2009 | 30 Jun 2012 | British | 67 years |
| Robin Graham Caven | Director | 28 Apr 2000 | 11 Jul 2008 | British | 65 years |
| Roger Leonard Burrows | Director | 1 Aug 1997 | 15 Dec 1997 | Australian | 63 years |
| Roger Leonard Burrows | Secretary | 7 Mar 1997 | 4 Sept 1997 | Australian | - |
| Susan Patricia Nicklin | Secretary | 10 Mar 2003 | 22 Sept 2003 | British | - |
| Thanalakshmi Janandran | Secretary | 13 Jan 2005 | 16 Aug 2013 | British | - |
| Victoria Elizabeth Quinlan | Director | 18 Jun 2009 | 19 Dec 2016 | Australian | 50 years |