| FREEMAN, Janet ACTIVE | Secretary | 10 Oct 2016 | | | | C/O Sps Technologies Limited, 191 Barkby Rd, Troon Industrial Area, Leicester, LE4 9HX, United Kingdom |
| ARMAGNO, Anna Marie ACTIVE | Director | 20 Aug 2018 | | United States | December 1981 | C/O Special Metals Wiggin Ltd, Wiggins Works, Holmer Road, Hereford, HR4 9SL, England |
| BEYER, Ruth Ann ACTIVE | Director | 01 Jun 2013 | | United States | September 1955 | C/O, Special Metals Wiggin Ltd, Wiggins Works, Holmer Rd, Hereford, HR4 9SL, England |
| DIXON, Michael John ACTIVE | Director | 28 Jan 2026 | | England | October 1988 | C/O, Special Metals Wiggin Ltd, Wiggins Works, Holmer Rd, Hereford, HR4 9SL |
| HAGEL, Shawn Rene ACTIVE | Director | 01 Apr 2003 | | United States | May 1965 | 15190, Sw 107th Terrace, Tigard, Oregon, 97224, United States |
| MCCARTHY, Stephen David ACTIVE | Director | 28 Jan 2026 | | England | December 1978 | C/O, Special Metals Wiggin Ltd, Wiggins Works, Holmer Rd, Hereford, HR4 9SL |
| PUETZ, James Robert ACTIVE | Director | 01 Jul 2021 | | United States | April 1962 | C/O, Special Metals Wiggin Ltd, Wiggins Works, Holmer Rd, Hereford, HR4 9SL |
| SINCLAIR, Scott RESIGNED | Secretary | 01 Apr 2003 | 11 Dec 2020 | | | C/O, Special Metals Wiggin Ltd, Wiggins Works, Holmer Rd, Hereford, HR4 9SL, England |
| ABOGADO CUSTODIANS LIMITED RESIGNED | Nominee Secretary | 20 Jan 1994 | 27 May 1994 | | | 100 New Bridge Street, London, EC4V 6JA |
| D.W. COMPANY SERVICES LIMITED RESIGNED | Secretary | 27 May 1994 | 21 Mar 2011 | | | 180 Strand, London, WC2R 2NN |
| AYERS, Christopher Lee RESIGNED | Director | 03 Mar 2005 | 25 Jul 2008 | | November 1966 | 16801 Greenspoint Park Drive, Suite 355, Huston,, Tx 77060, Usa |
| BECKER, Roger Paul RESIGNED | Director | 17 Mar 2011 | 30 Jun 2021 | United States | November 1953 | Wyman-Gordon Limited, Houstoun Road, Livingston, West Lothian, EH48 1AS, United Kingdom |
| BLACKMORE, Steven Craig RESIGNED | Director | 13 Feb 2008 | 20 Jul 2018 | United States | October 1961 | 4430 Se Windsor Ct, Portland, Oregon, United States |
| BUCK, Ken RESIGNED | Director | 25 Jul 2008 | 20 May 2015 | Usa | December 1959 | 25201, Chagrin Blvd, Suite 290, Beachwood Ohio, 44122, Usa |
| COLEMAN, Jeff RESIGNED | Director | 16 Dec 2016 | 06 May 2019 | United Kingdom | January 1977 | C/O, Special Metals Wiggin Ltd, Wiggins Works, Holmer Rd, Hereford, HR4 9SL |
| COOKE, Roger Anthony RESIGNED | Director | 21 Nov 2008 | 01 Jun 2013 | Usa | June 1948 | 1910 Sw Myrtle Street, Portland, Oregon, 97201, United States |
| COOPER, Una Louise RESIGNED | Director | 16 Jan 1998 | 31 May 2003 | | April 1968 | 37 Golf Course Road, Bonnyrigg, Midlothian, EH19 2HZ |
| DAVIS, Edward RESIGNED | Director | 17 Mar 1998 | 29 Mar 1999 | | October 1946 | 838 Great Plain Avenue, Needham, Massachusetts, MA 1945, Usa |
| DICKSON, Sheila Margaret RESIGNED | Director | 28 Sep 1994 | 23 Jan 1998 | | July 1966 | 21 Queensborough Gardens, Hyndland, Glasgow, G12 9PP |
| DIMMER, Anthony Charles RESIGNED | Director | 03 Jan 2019 | 22 Dec 2025 | Scotland | March 1979 | C/O, Special Metals Wiggin Ltd, Wiggins Works, Holmer Rd, Hereford, HR4 9SL |
| DONEGAN, Mark RESIGNED | Director | 21 Mar 2000 | 28 Oct 2008 | | July 1956 | 4 Kennedy Lane, Ma 01745, Southboro, Massachusetts, Usa |
| GENOR, Andrew Clifford RESIGNED | Director | 15 Feb 1995 | 17 Mar 1998 | | June 1942 | 16 South Street, Marblehead Massachusetts 01945, Usa, FOREIGN |
| HARDCASTLE, Kenneth Lloyd RESIGNED | Director | 24 Jan 1994 | 26 May 1994 | | July 1934 | 11914 Knobcrest, Houston Texas 77070, Usa, FOREIGN |
| HAWKES, Geoffrey A RESIGNED | Director | 01 Apr 2003 | 24 Jan 2008 | | August 1958 | 2810 Nw Beuhla Vista Terrace, Portland, Oregon 97210, Usa |
| HOULDON, James E RESIGNED | Director | 01 Apr 2003 | 17 Feb 2005 | | November 1952 | 5607 Tatteridge, Houston, Texas Tx 77069, Usa |
| LAKE, Christopher Robert RESIGNED | Director | 16 Dec 1994 | 31 Mar 2000 | | December 1946 | 10 Rockville Grove, Linlithgow, West Lothian, EH49 6BZ |
| LARSSON, William Dean RESIGNED | Director | 26 Jan 2000 | 12 Aug 2008 | | June 1945 | 1865 Palisades Terrace, Lake Oswego, Oregon 97034, Usa |
| LEON, Luis Eduardo RESIGNED | Director | 26 May 1994 | 16 Oct 1994 | | November 1952 | 24 Carter Road, Shrewsbury, Massachusetts, 01545 |
| MASTERMAN, Andrew RESIGNED | Director | 28 Jun 2015 | 30 Nov 2016 | Usa | February 1968 | C/O, Special Metals Wiggin Ltd, Wiggins Works, Holmer Rd, Hereford, HR4 9SL |
| MCARLEY, James Leroy RESIGNED | Director | 12 Aug 2008 | 22 Jun 2009 | | November 1963 | 4513, Holly Street, Bellaire, Texas 77401, U |
| MCCORMICK, William Charles RESIGNED | Director | 01 Mar 2000 | 01 Apr 2003 | | October 1933 | 3479 Cascade Terrace, West Linn, Oregon, OR 97068, Usa |
| MILNER, Andrew Rex RESIGNED | Director | 01 Aug 2014 | 01 May 2015 | England | December 1961 | C/O, Special Metals Wiggin Ltd, Wiggins Works, Holmer Rd, Hereford, HR4 9SL |
| MORLEY, Robert Henry RESIGNED | Director | 02 Aug 2010 | 01 Aug 2014 | United Kingdom | October 1956 | Wyman Gordon Limited, Houstoun Road, Livingston, West Lothian, EH48 1AS |
| PATTEE, Russell Scott RESIGNED | Director | 12 Aug 2008 | 20 Aug 2018 | United States | January 1964 | 11444, Se Norwood Loop, Happy Valley, Oregon 97086, United States |
| PATTLE, Derek Graham RESIGNED | Director | 26 May 1994 | 01 Mar 2000 | Scotland | February 1950 | Rannoch, 2 Union Road, Linlithgow, EH49 7DY |
| ROSKOPF, Mark R RESIGNED | Director | 01 Apr 2003 | 17 Feb 2009 | | November 1961 | 9708 Nw Golden Avenue, Vancouver, Wa 98665, FOREIGN, Usa |
| THOMAS, Chris RESIGNED | Director | 26 Nov 2015 | 06 May 2019 | England | October 1962 | C/O, Special Metals Wiggin Ltd, Wiggins Works, Holmer Rd, Hereford, HR4 9SL |
| TUTTON, Nigel RESIGNED | Director | 17 Jul 2004 | 11 Feb 2011 | United Kingdom | April 1961 | 9a Drummond Place, Edinburgh, EH3 6PH |
| WARING, David RESIGNED | Director | 02 Jul 2002 | 31 Oct 2003 | United Kingdom | March 1957 | Keppel Gate, Church Fields, Wixford, Alcester, Warwickshire, B49 6DY |
| WEBSTER, Charles Grant RESIGNED | Director | 16 Jan 1998 | 30 Nov 2008 | | November 1947 | 13 Clark Avenue, Linlithgow, West Lothian, EH49 7AP |
| WEBSTER, Charles Grant RESIGNED | Director | 26 May 1994 | 30 Sep 1994 | | November 1947 | 7 Longcroft Gardens, Linlithgow, West Lothian, EH49 7RR, Scotland |
| WHITE, David Allan RESIGNED | Director | 24 Jan 1994 | 26 May 1994 | | February 1942 | 10802 Oak Creek, Houston, Texas, TX 77024, Usa |
| WHITNEY JNR, Wallace French RESIGNED | Director | 26 May 1994 | 01 Mar 2000 | | January 1943 | 43 Brooks Station Road, Princeton, Massachusetts, 01541, Usa |
| ABOGADO NOMINEES LIMITED RESIGNED | Nominee Director | 20 Jan 1994 | 24 Jan 1994 | | | 100 New Bridge Street, London, EC4V 6JA |