| FROST, Andrew Gordon ACTIVE | Secretary | 12 Dec 2001 | | | | Unit 36 Number One Industrial, Estate, Medomsley Road, Consett, County Durham, DH8 6TS |
| CONSTABLE, Christopher Paul, Dr ACTIVE | Director | 07 Apr 2016 | | England | March 1975 | Unit 36 Number One Industrial, Estate, Medomsley Road, Consett, County Durham, DH8 6TS |
| LANDSBERGEN, Jeroen Franciscus Maria ACTIVE | Director | 23 Apr 2019 | | Netherlands | January 1965 | Unit 36 Number One Industrial, Estate, Medomsley Road, Consett, County Durham, DH8 6TS |
| OSTMAN, Jeffrey David ACTIVE | Director | 07 Apr 2016 | | France | December 1968 | Unit 36 Number One Industrial, Estate, Medomsley Road, Consett, County Durham, DH8 6TS |
| STEVENSON, John Alan RESIGNED | Secretary | 27 Jun 1997 | 12 Dec 2001 | | | 14 Collingwood Crescent, Ponteland, Newcastle Upon Tyne, NE20 9DZ |
| E P S SECRETARIES LIMITED RESIGNED | Nominee Secretary | 29 May 1997 | 27 Jun 1997 | | | 50 Stratton Street, London, W1X 6NX |
| BELLGARDT, Ulrich RESIGNED | Director | 01 Jul 1998 | 10 Dec 2002 | | June 1957 | Steinbruggstrasse 29, Solothurn 4500, Solothurn, Switzerland, FOREIGN |
| FLOOD, Peter D RESIGNED | Director | 27 Jun 1997 | 30 May 2002 | | September 1943 | 12 Washington Valley Road, Morristown, Nj 07960, Usa, FOREIGN |
| FROST, Andrew Gordon RESIGNED | Director | 24 Dec 2002 | 16 Jun 2004 | England | June 1952 | 18 Dovecote Road, Forest Hall, Newcastle Upon Tyne, Tyne & Wear, NE12 9LL |
| GEHRIG, Cornelia RESIGNED | Director | 21 Feb 2007 | 15 Jan 2009 | | September 1966 | Bergstrasse, 18 Speigel, Bern, 3095, Switzerland |
| HAGGERTY, Joseph Michael RESIGNED | Director | 15 Jan 2009 | 03 Aug 2016 | Switzerland | October 1964 | Unit 36 Number One Industrial, Estate, Medomsley Road, Consett, County Durham, DH8 6TS |
| KESSLER, Ernst RESIGNED | Director | 27 Jun 1997 | 30 May 2002 | | July 1941 | Im Trenschen 40, Schaffhausen, Switzerland, Ch-8207, FOREIGN |
| MARCHETTI, Marco, Dr RESIGNED | Director | 11 Jun 2004 | 26 Oct 2006 | | July 1965 | Baarerstrasse 16, Zug, 6900 |
| STEVENSON, John Alan RESIGNED | Director | 12 Dec 2001 | 16 Jun 2004 | | August 1940 | 14 Collingwood Crescent, Ponteland, Newcastle Upon Tyne, NE20 9DZ |
| VAN DER KOLK, Gerrit Jan, Prof. RESIGNED | Director | 03 Aug 2016 | 01 Apr 2019 | Netherlands | June 1955 | Unit 36 Number One Industrial, Estate, Medomsley Road, Consett, County Durham, DH8 6TS |
| VAN DER KOLK, Gerrit Jan, Dr RESIGNED | Director | 26 Oct 2006 | 07 Apr 2016 | Netherlands | June 1955 | Hugten 14, Rg Maarheeze, 6026, 6026 |
| WEILENMANN, Thomas RESIGNED | Director | 27 Jun 1997 | 30 Jun 1998 | | January 1954 | Rebenfeldstrasse 12, Lostorf, Switzerland, Ch-4654 |
| MIKJON LIMITED RESIGNED | Nominee Director | 29 May 1997 | 27 Jun 1997 | | | 50 Stratton Street, London, W1X 5FL |