| Alexander Charles Deptford | Director | 29 Jan 2014 | 7 Jan 2015 | British | 61 years |
| Anthony Colin Reed | Director | 1 Nov 2011 | 31 Mar 2014 | British | 69 years |
| Cormac Kevin John O'keeffe | Director | 28 Jan 2020 | 6 May 2024 | Irish | 53 years |
| Danielle Jones | Director | 1 Apr 2014 | 2 May 2019 | British | 49 years |
| David Charles Tibble | Director | 25 Mar 2013 | 5 Jun 2015 | British | 74 years |
| David Kubilus | Director | 2 Jul 2015 | 23 Nov 2017 | American | 57 years |
| David William Munting | Director | 15 Feb 2013 | 10 Oct 2016 | British | 54 years |
| Greg Steven Kok | Director | 30 Nov 2017 | 27 May 2019 | Dutch | 54 years |
| James Forbes Clark | Director | 21 Dec 2017 | 27 Nov 2018 | British | 63 years |
| John Michael Rice | Director | 22 Feb 2011 | 30 Apr 2013 | British | 66 years |
| Maitland Administration Services Limited | Corporate Secretary | 18 May 2007 | 12 Apr 2023 | United Kingdom | - |
| Maurice Gerard Quirke | Director | 25 Mar 2013 | 5 Jun 2015 | British | 66 years |
| Peter Christopher Little | Director | 27 Sept 2013 | 26 Aug 2014 | British | 66 years |
| Reinhold Ackermann | Director | 1 Jan 2017 | 31 Jan 2020 | South African | 43 years |
| Robert Walter Leedham | Director | 18 Apr 2012 | 23 Nov 2017 | British | 53 years |
| Robert William Elliott | Director | 11 Apr 2011 | 21 May 2013 | British | 71 years |
| Steven Andrew King | Director | 18 May 2007 | 31 Mar 2012 | British | 66 years |
| Steven Georgala | Director | 24 Aug 2015 | 27 Nov 2018 | Luxembourger | 69 years |
| Stuart David Mathieson | Director | 18 May 2007 | 31 Oct 2011 | British | 81 years |
| Timothy Oddy | Director | 9 Jun 2023 | 7 Mar 2024 | British | 65 years |
| Veit Schuhen | Director | 2 Jul 2015 | 23 Nov 2017 | German | 67 years |
