| BUTLER, Emily ACTIVE | Secretary | 26 Oct 2021 | | | | C/O Amg Chrome Limited, Fullerton Road, Rotherham, S60 1DL, England |
| LAWSON, Kevin ACTIVE | Director | 20 Dec 2013 | | Wales | August 1968 | C/O Amg Chrome Limited, Fullerton Road, Rotherham, S60 1DL, England |
| SCAIFE, Leonora Maria ACTIVE | Director | 20 Dec 2013 | | England | January 1971 | C/O Amg Chrome Limited, Fullerton Road, Rotherham, S60 1DL, England |
| BEARE, David Jonathan Elliott RESIGNED | Secretary | 01 Jan 2002 | 18 Apr 2007 | | | 3 Tay Close, Dronfield Woodhouse, Dronfield, S18 8ZS |
| CORFIELD, Ralph Gordon RESIGNED | Secretary | | 30 Nov 1992 | | | 35 Gleneagles Drive, Sutton Coldfield, West Midlands, B75 6UN |
| CROWTHER, Christopher Laurin RESIGNED | Secretary | 30 Jun 1994 | 30 Jun 2000 | | | 27 St Johns Road, Orpington, Kent, BR5 1HS |
| HAMER, Jonathan RESIGNED | Secretary | 20 Mar 2007 | 30 Nov 2013 | | | Lsm, Fullerton Road, Rotherham, South Yorkshire, S60 1DL |
| MACDONELL, Aeneas Ranald Euan RESIGNED | Secretary | 01 Jul 2000 | 31 Dec 2001 | | | 74 Haverhill Road, London, SW12 0HB |
| PALMER, Timothy Robyn Charles RESIGNED | Secretary | 05 Feb 2016 | 26 Oct 2021 | | | C/O Amg Superalloys Uk Limited,, Fullerton Road, Rotherham, South Yorkshire, S60 1DL |
| SCAIFE, Leonora Maria RESIGNED | Secretary | 20 Dec 2013 | 05 Feb 2016 | | | C/O Amg Superalloys Uk Limited,, Fullerton Road, Rotherham, South Yorkshire, S60 1DL, England |
| TIBBS, John RESIGNED | Secretary | 22 Jan 1993 | 30 Jun 1994 | | | 59 Stonehouse Crescent, Wednesbury, West Midlands, WS10 0DQ |
| BEARE, David Jonathan Elliott RESIGNED | Director | 10 May 2006 | 30 Nov 2013 | United Kingdom | May 1968 | Lsm, Fullerton Road, Rotherham, South Yorkshire, S60 1DL |
| BUSBY, Terence John RESIGNED | Director | 23 Aug 2004 | 09 May 2006 | England | November 1956 | 33 Knowles Lane, Gomersal, Cleckheaton, West Yorkshire, BD19 4LE |
| CARR, Scott Robson RESIGNED | Director | 18 Jan 2013 | 30 Nov 2013 | United Kingdom | July 1962 | Lsm, Fullerton Road, Rotherham, South Yorkshire, S60 1DL |
| CORFIELD, Ralph Gordon RESIGNED | Director | | 30 Nov 1992 | | September 1929 | 35 Gleneagles Drive, Sutton Coldfield, West Midlands, B75 6UN |
| CRISNAIRE, Julien Yann RESIGNED | Director | 20 Dec 2013 | 07 Apr 2015 | Usa | May 1978 | Building 200, 435 Devon Park Drive, Wayne, Pa 19087, Usa |
| DIXEY, Andrew Roger RESIGNED | Director | 25 Oct 2004 | 08 May 2006 | England | February 1950 | Hill House, Bloxham, Oxon, OX15 4PH |
| ENTREKIN, Charles Henry, Dr RESIGNED | Director | 10 Jun 2003 | 03 Mar 2006 | | February 1949 | 150 Foxgayte Lane, Pottstown, Pa 19465, Usa |
| EWART, Alan David, Mr. RESIGNED | Director | | 01 Feb 1994 | England | August 1947 | 56 Woodcote Avenue, Wallington, Surrey, SM6 0QY |
| HAMER, Jonathan RESIGNED | Director | 08 Dec 2009 | 30 Nov 2013 | England | January 1967 | Lsm, Fullerton Road, Rotherham, South Yorkshire, S60 1DL |
| HARRIS, John RESIGNED | Director | | 02 Jan 2003 | | January 1938 | 28 Station Road, Wylde Green, Sutton Coldfield, West Midlands, B73 5JZ |
| KEARNS, Martin Anthony, Doctor RESIGNED | Director | 09 Oct 2000 | 11 Aug 2004 | | April 1960 | 130 Furniss Avenue, Sheffield, South Yorkshire, S17 3QP |
| KELLIE, James Leslie Frederick RESIGNED | Director | 01 Aug 1996 | 31 Dec 1999 | Great Britain | November 1938 | Shatton Hall Farm, Bamford, Sheffield, South Yorkshire, S33 0BG |
| KOBER, Stephen Walter RESIGNED | Director | 20 Mar 1997 | 11 Aug 2004 | England | September 1949 | 17 Whirlow Park Road, Sheffield, South Yorkshire, S11 9NN |
| LAWSON, Kevin RESIGNED | Director | 08 Dec 2009 | 18 Jan 2013 | Wales | August 1968 | Lsm, Fullerton Road, Rotherham, South Yorkshire, S60 1DL |
| PEARSON, James, Dr RESIGNED | Director | 01 Jan 2000 | 01 Jul 2003 | | April 1940 | 75 Higher Drive, Banstead, Surrey, SM7 1PW |
| PEARSON, James, Dr RESIGNED | Director | 01 Feb 1994 | 02 Jan 1997 | | April 1940 | 75 Higher Drive, Banstead, Surrey, SM7 1PW |
| RANSON, Leslie, Dr RESIGNED | Director | | 01 Aug 1996 | | October 1946 | 48 Sunderland Street, Tickhill, Doncaster, South Yorkshire, DN11 9QJ |
| RESENDE, Itamar Dutra Pereira De RESIGNED | Director | 10 May 2006 | 20 Dec 2013 | United Kingdom | April 1959 | Lsm, Fullerton Road, Rotherham, South Yorkshire, S60 1DL |
| SINER, Perry James RESIGNED | Director | 09 Nov 2021 | 31 Oct 2023 | England | September 1973 | C/O Amg Chrome Limited, Fullerton Road, Rotherham, S60 1DL, England |
| TAIT, John David RESIGNED | Director | | 30 Sep 2005 | | June 1945 | 123 Main Street, Branston, Burton On Trent, Staffordshire, DE14 3EY |
| WRIGHT, John Warren RESIGNED | Director | | 30 Sep 2000 | | May 1938 | 46 Howley Grange Road, Halesowen, West Midlands, B62 0HW |
| YARBROUGH, Charles Keene RESIGNED | Director | 05 Aug 2004 | 31 Aug 2006 | | June 1953 | 221 Lower County Road, West Harwich, Ma 02671, Usa |