| FREEMAN, Janet ACTIVE | Secretary | 10 Oct 2016 | | | | C/O Sps Technologies, 191 Barkby Road, 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 Rd, Hereford, HR4 9SL, England |
| BEYER, Ruth Ann ACTIVE | Director | 01 Jun 2013 | | United States | September 1955 | C/O Special Metals Wiggin Ltd, Wiggin Works, Holmer Road, Hereford, HR4 9SL |
| DIMMER, Anthony Charles ACTIVE | Director | 03 Jan 2019 | | Scotland | March 1979 | C/O Special Metals Wiggin Ltd, Wiggin Works, Holmer Road, Hereford, HR4 9SL |
| HAGEL, Shawn Rene ACTIVE | Director | 01 Apr 2003 | | United States | May 1965 | 15190, Sw 107th Terrace, Tigard, Oregon, 97224, United States |
| PUETZ, James Robert ACTIVE | Director | 10 Mar 2024 | | United States | April 1962 | C/O Special Metals Wiggin Ltd, Wiggin Works, Holmer Road, Hereford, HR4 9SL |
| COOKE, Roger Anthony RESIGNED | Secretary | 28 Apr 2000 | 01 Jun 2013 | | | 1910 Sw Myrtle Street, Portland, Oregon, 97201, United States |
| SINCLAIR, Scott RESIGNED | Secretary | 01 Apr 2003 | 11 Dec 2020 | | | C/O Special Metals Wiggin Ltd, Wiggin Works, Holmer Road, Hereford, HR4 9SL |
| A B & C SECRETARIAL LIMITED RESIGNED | Nominee Secretary | 20 Apr 2000 | 28 Apr 2000 | | | 100 Barbirolli Square, Manchester, M2 3AB |
| AYERS, Christopher Lee RESIGNED | Director | 03 Mar 2005 | 25 Jul 2008 | | November 1966 | 16801 Greenspoint Park Drive, Suite 355, Huston,, Tx 77060, Usa |
| BLACKMERE, Steven RESIGNED | Director | 13 Feb 2008 | 20 Jul 2018 | United States | October 1961 | 4430, Se Windsor Ct, Portland, Oregon, 97206, 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, Wiggin Works, Holmer Road, 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 |
| DONEGAN, Mark RESIGNED | Director | 28 Apr 2000 | 28 Oct 2008 | | July 1956 | 4 Kennedy Lane, Ma 01745, Southboro, Massachusetts, Usa |
| 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 | 27 Jun 2005 | | November 1952 | 5607 Tatteridge, Houston, Texas Tx 77069, Usa |
| LARSSON, William Dean RESIGNED | Director | 28 Apr 2000 | 12 Aug 2008 | | June 1945 | 1865 Palisades Terrace, Lake Oswego, Oregon 97034, Usa |
| MASTERMAN, Andrew RESIGNED | Director | 28 Jun 2015 | 30 Nov 2016 | Usa | February 1968 | C/O Special Metals Wiggin Ltd, Wiggin Works, Holmer Road, Hereford, HR4 9SL |
| MCCARLEY, James Leroy RESIGNED | Director | 12 Aug 2008 | 22 Jun 2009 | Usa | November 1963 | 4513, Holly Street, Bellaire, Texas, 77401, Usa |
| MCCORMICK, William Charles RESIGNED | Director | 28 Apr 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, Wiggin Works, Holmer Road, 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, EH54 5BZ |
| 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 |
| ROSKOPF, Mark R RESIGNED | Director | 01 Apr 2003 | 21 Nov 2008 | | 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, Wiggin Works, Holmer Road, Hereford, HR4 9SL |
| TUTTON, Nigel RESIGNED | Director | 17 Jul 2004 | 18 Apr 2011 | United Kingdom | April 1961 | 12 Great King Street, Edinburgh, Midlothian, EH3 6QL |
| WARING, David RESIGNED | Director | 28 Apr 2000 | 27 Jun 2005 | | March 1957 | 3 Church Walk, Harmston, Lincoln, Lincolnshire, LN5 9GD |
| INHOCO FORMATIONS LIMITED RESIGNED | Nominee Director | 20 Apr 2000 | 28 Apr 2000 | | | 100 Barbirolli Square, Manchester, M2 3AB |