| Ancosec Limited | Corporate Secretary | 25 Jun 2007 | 1 Jul 2013 | United Kingdom | - |
| Andrew James Johnston | Director | 2 Jul 1992 | 14 Sept 1998 | British | 67 years |
| Andrew James Johnston | Director | 30 Jun 2008 | 1 Jul 2013 | British | 67 years |
| Beth Salena Chater | Director | 14 Sept 1998 | 31 Oct 2008 | British | 64 years |
| David Mark Johnston Duffield | Director | 14 Sept 1998 | 14 Sept 2007 | British | 76 years |
| David Mark Johnston Duffield | Secretary | 25 Jun 1999 | 23 Jul 2001 | British | - |
| David Russell Workman | Director | 24 Jul 2013 | 15 Jan 2015 | British | 62 years |
| Emily Jane Easton Nielson | Director | 17 Jun 2010 | 19 Feb 2015 | British | 50 years |
| Godfrey Alwin Allen | Director | 2 Jul 1992 | 25 Jun 1996 | British | 89 years |
| Gordon Thomas Birdwood | Secretary | 1 Jul 2013 | 15 Jan 2017 | - | - |
| Howard Evans | Director | 29 Jul 2014 | 30 Nov 2019 | British | 59 years |
| Iain Donald Ferguson | Secretary | 29 Jun 1992 | 25 Sept 1996 | British | - |
| James Joseph Flynn | Director | 15 Jan 2015 | 28 Feb 2019 | Irish | 68 years |
| James Martin Cornell | Director | 31 Dec 2009 | 1 Jul 2013 | British | 51 years |
| James William Matthew Raven | Director | 29 Aug 2017 | 9 Sept 2021 | British | 53 years |
| Jane Denise Cann | Director | 2 Jul 1992 | 14 Sept 1998 | British | 66 years |
| Jeffrey Mark Pulsford | Director | 14 Sept 1998 | 30 Jun 2008 | British | 66 years |
| Jonathan David Read | Secretary | 23 Jul 2001 | 25 Jun 2007 | British | - |
| Jonathan Martin Austen | Director | 30 Sept 2006 | 28 May 2008 | British | 69 years |
| Julian Francis Bates | Director | 24 Jul 2013 | 15 Jan 2015 | British | 62 years |
| Mark Geoffrey Smith | Director | 19 May 2016 | 30 Nov 2019 | British | 54 years |
| Michael Andrew Tibbetts | Director | 31 Dec 2009 | 17 Jun 2010 | British | 60 years |
| Michael James O'sullivan | Director | 30 Jun 2008 | 31 Dec 2009 | Australian | 59 years |
| Nicholas Andrew De Burgh Jones | Director | 15 Jan 2015 | 19 May 2016 | British | 44 years |
| Nigel Howard Pope | Director | 30 Jun 2008 | 31 Dec 2009 | British | 61 years |
| Patrick Deigman | Director | 30 Jun 1992 | 30 Sept 2006 | British | 73 years |
| Peter Richard Jame | Director | 29 Jun 1992 | 30 Sept 1993 | British | 77 years |
| Piers Christopher Chapman | Director | 1 Jul 2013 | 30 Nov 2019 | British | 54 years |
| Richard James Potter | Director | 31 Dec 2009 | 27 Dec 2021 | British | 59 years |
| Robert Davis | Director | 28 Feb 2019 | 30 Nov 2019 | British | 56 years |
| Robert Paul Reed | Director | 23 May 2011 | 19 Feb 2015 | British | 57 years |
| Robert Paul Reed | Director | 26 Feb 2015 | 29 Aug 2017 | British | 57 years |
| Sarah Jane Lyne | Secretary | 25 Sept 1996 | 25 Jun 1999 | British | - |
| Satish Mohanlal | Director | 31 Oct 2008 | 30 Sept 2009 | British | 61 years |
| Simon John Newton | Director | 1 Jul 2013 | 30 Nov 2019 | British | 67 years |