| DEE, James Digiacomo ACTIVE | Secretary | 11 Feb 2011 | | | | Carpenter Technology Corporation, 1735 Market Street, Philadelphia, PA19103, United States |
| KLEES, Aria Agape ACTIVE | Secretary | 19 Aug 2022 | | | | Carpenter Technology Corporation, 1735 Market Street, Philadelphia, PA19103, United States |
| BROUGHTON SECRETARIES LIMITED ACTIVE | Secretary | 22 Mar 2019 | | | | 54, Portland Place, London, W1B 1DY, England |
| DEE, James Digiacomo, Mr. ACTIVE | Director | 11 Feb 2011 | | United States | July 1957 | Carpenter Technology Corporation, 1735 Market Street, Philadelphia, PA19103, United States |
| LAIN, Timothy ACTIVE | Director | 11 Sep 2015 | | United States | May 1972 | Carpenter Technology Corporation, 1735 Market Street, Philadelphia, PA19103, United States |
| MALLOY, Brian Joseph ACTIVE | Director | 01 Aug 2016 | | United States | September 1966 | Carpenter Technology Corporation, 1735 Market Street, Philadelphia, PA19103, United States |
| BORDA, Maria RESIGNED | Secretary | 31 Dec 2020 | 19 Aug 2022 | | | 1735 Market Street, Philadelphia, Pa19103, United States |
| BUSBY, Mary Alice RESIGNED | Secretary | 06 Apr 1999 | 14 Nov 2001 | | | 617 Wendy Circle, Berwyn, Chester 19312, Usa |
| CHRISTIANSEN, David Arthur RESIGNED | Secretary | 14 Nov 2001 | 04 Sep 2007 | | | 1758 Thistle Way, Malvern Chester, Pennsylvania Pa 19355, Usa |
| CHRISTIANSEN, David Arthur RESIGNED | Secretary | 25 Jun 1997 | 06 Apr 1999 | | | 1758 Thistle Way, Malvern Chester, Pennsylvania Pa 19355, Usa |
| MITCHELL JR, Oliver Constantine RESIGNED | Secretary | 19 Sep 2007 | 30 Oct 2009 | | | 101, Elsworth Drive, Sinking Spring, Pennsylvania 19608, FOREIGN, United States |
| PULASKI, Wendy K RESIGNED | Secretary | 31 Oct 2002 | 31 Dec 2020 | | | Carpenter Technology Corporation, 1735 Market Street, Philadelphia, PA19103, United States |
| WELTY, John Rider RESIGNED | Secretary | 25 Jun 1997 | 31 Oct 2002 | | | 22 Wild Forest Drive, Wernersville, Pennsylvania, 19565, Usa |
| ABOGADO NOMINEES LIMITED RESIGNED | Nominee Secretary | 01 May 1984 | 16 Jan 2018 | | | 100 New Bridge Street, London, EC4V 6JA |
| CARDY, Robert Willard RESIGNED | Director | | 14 Nov 2001 | | August 1936 | 1918 Meadow Lane, Wyomissing, Pennsylvania, 19610, Usa |
| COTTRELL, George Walton RESIGNED | Director | | 14 Nov 2001 | | September 1939 | 4 Forest Road, Mohnton Berkshire, Pennsylvania 19540 Usa, FOREIGN |
| DRAEGER, Dennis RESIGNED | Director | 14 Nov 2001 | 30 Jun 2003 | | October 1940 | 2020 Meadow Glen, Wyomissing, Berks Pa 19610, Usa |
| GEREMSKI, Terrence RESIGNED | Director | 14 Nov 2001 | 01 Aug 2006 | | July 1947 | 116 Clubhouse Drive, Bernville, Pa 19506, Usa |
| KORNBLATT, Mosheh David RESIGNED | Director | 01 Aug 2006 | 07 May 2007 | Usa | March 1960 | 4117 Copperfield Drive, Harrisburg, Pa 17112, Usa |
| MCELWEE, Andrew RESIGNED | Director | 10 Nov 1999 | 14 Nov 2001 | | August 1957 | 206 Stanford Drive, Chester Springs, Chester, Pa, Usa |
| MCGARRY, Michael John RESIGNED | Director | 06 Mar 2002 | 29 Oct 2007 | | July 1960 | Chaussee De Mont St Jean 317, 1410 Waterloo, Belgium |
| MITCHELL JR, Oliver Constantine RESIGNED | Director | 24 Mar 2008 | 30 Oct 2009 | | December 1954 | 101, Elsworth Drive, Sinking Spring, Pennsylvania 19608, FOREIGN, United States |
| OATES, Dennis Matthew RESIGNED | Director | 28 Oct 2004 | 26 Jul 2007 | | October 1952 | 1302 Eaves Spring Court, Malvern, Pa 19355, Usa |
| RALPH, Kenneth Douglas RESIGNED | Director | 23 Jul 2007 | 01 Feb 2013 | | September 1960 | 8 Remington Lane, Malvern, Pennsylvania 19355, Usa |
| SANTORO, Richard George RESIGNED | Director | 22 Dec 1994 | 10 Nov 1999 | | August 1949 | 137 Grande Boulevard, Sinking Spring, Pennsylvania, 19608, Usa |
| SHOR, Michael Lee RESIGNED | Director | 17 Aug 2007 | 20 Mar 2008 | | August 1959 | 1912 Meadow Lane, Wyomissing, Pa 19610 |
| SHOR, Michael Lee RESIGNED | Director | 14 Nov 2001 | 28 Oct 2004 | | August 1959 | 1912 Meadow Lane, Wyomissing, Pa 19610 |
| SIMONS, Richard Leigh RESIGNED | Director | 08 May 2007 | 09 Jul 2007 | | December 1955 | 48 Hickory Lane, Bernville, Pennsylvania 19506 |
| STEVENS, Anne Louise RESIGNED | Director | 01 Dec 2006 | 09 Mar 2010 | | March 1948 | 1635 Museum Road, Wyomissing, Pennsyvania 19610, Usa |
| THENE, Tony Ray RESIGNED | Director | 01 Feb 2013 | 11 Sep 2015 | Usa | October 1960 | 101, West Bern Street, Reading, Pennsylvania 19601, Usa |
| THERASSE, Martine RESIGNED | Director | 29 Oct 2007 | 07 Jul 2014 | | October 1970 | 103 Avenue Franklin Roosevelt, 1050 Brussels, 1050, Belgium |
| TORCOLINI, Robert Joseph RESIGNED | Director | 31 Oct 2002 | 01 Dec 2006 | | December 1950 | 418 Oak Lane, Wyomissing, Pennsylvania Pa 19610, Usa |
| WEILER, Richard Joseph RESIGNED | Director | | 20 Dec 1994 | | February 1937 | 1244 Van Steffy Avenue, Wyomissing Pa 19610, Usa |
| ZIOLKOWSKI, Andrew Thomas RESIGNED | Director | 07 Jul 2014 | 11 Sep 2015 | United States | September 1964 | 101, West Bern Street, Reading, Pennsylvania 19601, Usa |