| Andrew Christopher Bolter | Director | 3 Sept 2012 | 4 Apr 2014 | British | 56 years |
| Barrie Frederick Gill | Director | 30 Apr 1996 | 27 Aug 1999 | British | 77 years |
| Bernard Malcolm Murphy | Director | 30 Apr 1996 | 26 Aug 1999 | British | 68 years |
| Bernard Malcolm Murphy | Secretary | 30 Apr 1996 | 27 Aug 1999 | British | - |
| Carl Howard Bigley | Director | 31 Jul 1992 | 13 Sept 1995 | British | 67 years |
| Chettleburgh International Limited | Corporate Nominee Secretary | 31 Jul 1992 | 31 Jul 1992 | United Kingdom | - |
| Christopher Gordon Reynolds | Director | 17 Jan 2008 | 18 May 2009 | British | 73 years |
| Clive Cadwgan James | Director | 27 Aug 1999 | 16 May 2005 | British | 78 years |
| David Anthony Grady | Director | 18 May 2009 | 11 Jun 2010 | British | 57 years |
| Deborah Grimason | Director | 28 Jun 2013 | 20 Nov 2013 | British | 63 years |
| Fiona Puleston Penhallurick | Director | 4 Apr 2014 | 15 Mar 2016 | British | 59 years |
| Gilbert James Cox | Director | 31 Jul 1992 | 7 Dec 1993 | British | 77 years |
| Helen Douglas | Director | 27 Aug 1999 | 16 May 2005 | British | 66 years |
| Helen Douglas | Secretary | 27 Aug 1999 | 16 May 2005 | British | - |
| James Richard Stirk | Director | 11 Jun 2010 | 14 Dec 2012 | British | 67 years |
| Lafarge Tarmac Directors (uk) Limited | Corporate Director | 28 Jun 2013 | 27 Aug 2015 | United Kingdom | - |
| Nicholas Henry Aldous Wood | Director | 27 Aug 1999 | 31 Mar 2005 | British | 75 years |
| Penelope Elizabeth Campbell | Secretary | 13 Sept 1995 | 30 Apr 1996 | British | - |
| Philip William Richards | Director | 30 Apr 1996 | 26 Aug 1999 | British | 70 years |
| Sean Justin Campbell | Director | 31 Jul 1992 | 30 Apr 1996 | British | 71 years |
| Sean Justin Campbell | Secretary | 31 Jul 1992 | 13 Sept 1995 | British | - |
| Tarmac Nominees Limited | Corporate Director | 16 May 2005 | 29 Jun 2013 | United Kingdom | - |
| Tarmac Nominees Two Limited | Corporate Director | 16 May 2005 | 29 Jun 2013 | United Kingdom | - |
| Tarmac Nominees Two Limited | Corporate Secretary | 16 May 2005 | 29 Jun 2013 | United Kingdom | - |
