| DAVIS, Elliot Staub ACTIVE | Secretary | 20 Oct 2008 | | | | 1000, Six Ppg Place, Pittsburgh, Pa 15222, United States |
| MWLAW SERVICES LIMITED ACTIVE | Secretary | 21 Aug 2017 | | | | Second Floor, 11 Pilgrim Street, London, EC4V 6RN, England |
| DAVIS, Elliot Staub ACTIVE | Director | 01 May 2011 | | United States | August 1961 | 1000, Six Ppg Place, Pittsburgh, Pa 15222, United States |
| DECOURCCY, Patrick ACTIVE | Director | 15 Jul 2013 | | United States | October 1962 | 1000, Six Ppg Place, Pittsburgh, PA 15222, United States |
| DUDILL, Anthony Leonard ACTIVE | Director | 31 Jul 2000 | | | January 1958 | 25, Croft Drive, Tickhill, Doncaster, South Yorkshire, DN11 9UL |
| MACLACHLAN, James Robert Bennett RESIGNED | Secretary | | 11 Oct 1996 | | | Southfields, Milbourne, Malmesbury, Wiltshire, SN16 9JB |
| NAPOLI, Joseph Victor RESIGNED | Secretary | 28 Oct 1996 | 04 Mar 1997 | | | Piazza Imperatore Tito 8, Milan, 20147, Italy |
| PARKER, Clive RESIGNED | Secretary | 17 Mar 1997 | 28 Feb 2003 | | | 4 Rose Terrace Gordon Road, Clifton, Bristol, BS8 1AW |
| TISHOK, John Michael RESIGNED | Secretary | 28 Feb 2003 | 01 Apr 2008 | | | 1 Sunedecker Road, Amity, Pa 15311, United States |
| GRAVITAS COMPANY SECRETARIAL SERVICES LIMITED RESIGNED | Secretary | 01 Apr 2008 | 21 Aug 2017 | | | One, New Change, London, EC4M 9AF |
| BAILLIE, James Harold RESIGNED | Director | 06 Apr 1993 | 18 Oct 1996 | | September 1946 | 4 Bois Heros, 1380 Lasne Brussels, Belgium, FOREIGN |
| BENSON, Richard RESIGNED | Director | 17 Mar 1997 | 30 Apr 1999 | | | Stockadon Farm, Cheriton Fitzpaine, Crediton, Devon, EX17 4JU |
| DODSON, Darryl Ray RESIGNED | Director | 31 Mar 1998 | 31 Jul 2000 | | October 1950 | Roche Abbey Mill Farm, Stone, Rotherham, South Yorkshire, S66 8NN |
| DRAKE, Hudson Billings RESIGNED | Director | 28 Oct 1996 | 17 Mar 1997 | | March 1935 | 2125 Century Woods Way, Los Angeles, California, 90067, Usa |
| GLASSON, Peter RESIGNED | Director | 28 Oct 1996 | 31 Dec 1999 | United Kingdom | June 1939 | Danes Lye, Westbury Road, Bratton, Westbury, Wiltshire, BA13 4TB |
| HARSHMAN, Richard Joseph RESIGNED | Director | 12 Aug 2002 | 01 May 2011 | | July 1956 | 1516 Fox Chase Lane, Upper St. Clair, Pittsburgh, Pennsylvania 15241, Usa |
| MACLACHLAN, James Robert Bennett RESIGNED | Director | | 11 Oct 1996 | United Kingdom | July 1940 | Southfields, Milbourne, Malmesbury, Wiltshire, SN16 9JB |
| MENG, Eugene RESIGNED | Director | | 06 Apr 1993 | | May 1923 | Teledyne 181 Chausse De Lane Hulpe, 1170 Brussels, FOREIGN, Belgium |
| MITCHELL, Willard RESIGNED | Director | | 21 Oct 1996 | | October 1940 | Teledyne 2111 Wilson Bvd Suit 1100, Arlington 22201-3008, FOREIGN, Usa |
| MURDY, James RESIGNED | Director | 31 Mar 1998 | 12 Aug 2002 | | April 1938 | 2670 Merry Oak Lane, Pittsburgh Allegheny County, Pennsylvania, USA, 15241-2953 |
| NAPOLI, Joseph Victor RESIGNED | Director | 28 Oct 1996 | 31 Jan 1998 | | June 1956 | Berlinerstr 215a, Erbenheim, Wiesbaden, 65203, Germany |
| REID, Dale Gary RESIGNED | Director | 01 May 2011 | 15 Jul 2013 | Usa | December 1955 | 1000, Six Ppg Place, Pittsburg, Pa 15222, Usa |
| RUSSELL, Lewis Michael RESIGNED | Director | 06 Apr 1993 | 31 Dec 1996 | | August 1947 | 833 So Rimpau Blvd, Los Angeles, California, 90005, Usa |
| WALTON, Jon David RESIGNED | Director | 31 Mar 1998 | 01 May 2011 | | September 1942 | 137 Hoodridge Drive, Pittsburgh, Pennsylvania 15228, Usa |
| WILLIAMS, Charles RESIGNED | Director | 13 May 1993 | 29 Jul 1993 | | July 1946 | 2818 Woods Lane, Garland, TX75044, United States |