| MACDONALD, Janet Ann ACTIVE | Secretary | 04 Jun 2003 | | | | Harsco House Regent Park, 299 Kingston Road, Leatherhead, Surrey, KT22 7SG |
| MACDONALD, Alexander James ACTIVE | Director | 10 Dec 2010 | | United Kingdom | December 1954 | Harsco House Regent Park, 299 Kingston Road, Leatherhead, Surrey, KT22 7SG |
| READ, Benjamin Stevenson, Mr. ACTIVE | Director | 01 Nov 2011 | | United Kingdom | December 1974 | Harsco House Regent Park, 299 Kingston Road, Leatherhead, Surrey, KT22 7SG |
| TILMOUTH, Graeme Croft ACTIVE | Director | 03 Oct 2011 | | England | July 1957 | Harsco House Regent Park, 299 Kingston Road, Leatherhead, Surrey, KT22 7SG |
| WHISTLER, Christopher Claude Lashmer ACTIVE | Director | 18 Sep 2000 | | England | June 1958 | Harsco House Regent Park, 299 Kingston Road, Leatherhead, Surrey, KT22 7SG |
| FORSYTHE, Andrew RESIGNED | Secretary | 20 Apr 2001 | 01 Aug 2001 | | | Pine Lodge, 2b Coral Close, Burbage Hinckley, Leicestershire, LE10 2HB |
| GOULDING, Graham Thomas RESIGNED | Secretary | 01 Aug 2001 | 25 Apr 2003 | | | 126 Auckland Road, London, SE19 2RP |
| RICHARDSON, Elaine RESIGNED | Secretary | 30 Sep 2000 | 20 Apr 2001 | | | The Willows Willowside, London Colney, St Albans, Hertfordshire, AL2 1DP |
| ROBERTS, Michael Leslie RESIGNED | Secretary | | 26 Jun 1998 | | | The Farthings, Tong Road Bishops Wood, Stafford, Staffordshire, ST19 9AB |
| SCULL, Andrew James RESIGNED | Secretary | 26 Jun 1998 | 30 Sep 2000 | | | 2 The Granary Brickwall Farm, Kiln Lane Clophill, Bedford, Bedfordshire, MK45 4DA |
| BARRETT, John William RESIGNED | Director | | 26 Jun 1998 | England | February 1947 | 6 Blythewood Close, Knowle, Solihull, West Midlands, B91 3HL |
| BURNS, Roderick RESIGNED | Director | 10 Dec 2010 | 03 Oct 2011 | England | December 1966 | Harsco House Regent Park, 299 Kingston Road, Leatherhead, Surrey, KT22 7SG |
| BUTLER, Geoffrey Doy Hopson RESIGNED | Director | 30 Sep 2000 | 31 Dec 2010 | England | October 1946 | Home Green Heath House Road, Worplesdon Hill, Woking, Surrey, GU22 0QU |
| FRICKER, Brian William RESIGNED | Director | | 26 Nov 1998 | | October 1938 | Flat 2 Seapoint Court, 3 Knowsley Road, Southport, Merseyside, PR9 0HG |
| HOAD, Martin Roger Gregory RESIGNED | Director | 10 Dec 2010 | 01 Nov 2011 | United Kingdom | November 1965 | Harsco House Regent Park, 299 Kingston Road, Leatherhead, Surrey, KT22 7SG |
| O'KELLY, Paul Brian RESIGNED | Director | 10 Dec 2010 | 05 Dec 2011 | United Kingdom | December 1957 | Harsco House Regent Park, 299 Kingston Road, Leatherhead, Surrey, KT22 7SG |
| PATTISON, William RESIGNED | Director | | 27 Nov 1992 | | September 1938 | 27 The Grove, Walton On Thames, Surrey, KT12 2HP |
| ROBERTS, Michael Leslie RESIGNED | Director | | 26 Jun 1998 | | March 1948 | The Farthings, Tong Road Bishops Wood, Stafford, Staffordshire, ST19 9AB |
| SCULL, Andrew James RESIGNED | Director | 26 Jun 1998 | 30 Sep 2000 | | April 1956 | 2 The Granary Brickwall Farm, Kiln Lane Clophill, Bedford, Bedfordshire, MK45 4DA |
| YAPP, Stephen RESIGNED | Director | 26 Jun 1998 | 30 Sep 2000 | England | May 1957 | 4 The Tovells, Off School Lane Ufford, Woodbridge, Suffolk, IP13 6HF |