| Andrew Christopher Bolter | Director | 3 Sept 2012 | 4 Apr 2014 | British | 56 years |
| Barbara Ann Lillian Mccarthy | Director | 22 Jan 1992 | 4 Oct 1999 | British | 74 years |
| Christopher Charles Mccarthy | Director | 22 Jan 1992 | 4 Oct 1999 | English | 75 years |
| David Jonas | Director | 22 Jan 1992 | 4 Oct 1999 | British | 86 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 |
| George William Bolsover | Director | 4 Oct 1999 | 13 Mar 2000 | British | 76 years |
| Guy Franklin Young | Director | 1 Feb 2011 | 29 Jun 2013 | South African | 57 years |
| Guy Franklin Young | Secretary | 1 Feb 2011 | 29 Jun 2013 | South African | - |
| Johannes Frederick Van Blerk Serfontein | Director | 1 Aug 2006 | 1 Feb 2011 | South African | 58 years |
| Johannes Frederick Van Blerk Serfontein | Secretary | 1 Aug 2006 | 1 Feb 2011 | South African | - |
| John Ferguson Bowater | Director | 13 Mar 2000 | 3 Feb 2004 | British | 77 years |
| John Michael Mccarthy | Director | 22 Jan 1992 | 4 Oct 1999 | British | 80 years |
| Lafarge Tarmac Directors (uk) Limited | Corporate Director | 28 Jun 2013 | 27 Aug 2015 | United Kingdom | - |
| Pamela Jonas | Director | 22 Jan 1992 | 4 Oct 1999 | British | 85 years |
| Pamela Jonas | Secretary | 22 Jan 1992 | 4 Oct 1999 | British | - |
| Rodney John Calder | Director | 3 Feb 2004 | 11 Feb 2009 | British | 77 years |
| Rosemary Ann Mccarthy | Director | 22 Jan 1992 | 4 Oct 1999 | British | 79 years |
| Tarmac Nominees Limited | Corporate Director | 11 Feb 2009 | 29 Jun 2013 | United Kingdom | - |
| Timothy Charles Jackson | Director | 4 Oct 1999 | 31 Jul 2006 | British | 74 years |
| Timothy Charles Jackson | Secretary | 4 Oct 1999 | 31 Jul 2006 | British | - |
