| MILLEN, Sally Ann ACTIVE | Director | 28 Jul 2026 | | United Kingdom | June 1978 | Chesterfield Tube Company Ltd, Meadowhall Road, Sheffield, S9 1BT, England |
| WEBSTER, Christopher James ACTIVE | Director | 23 May 2022 | | United Kingdom | August 1972 | Chesterfield Tube Company Ltd, Meadowhall Road, Sheffield, S9 1BT, England |
| CLARK, Jonathan Dudley RESIGNED | Secretary | 19 Jan 2007 | 31 Dec 2007 | | | 203 Derby Road, Beeston, Nottingham, Nottinghamshire, NG9 3AP |
| HAYWARD, John Trevor Saxelby RESIGNED | Secretary | 31 Dec 2007 | 14 Aug 2008 | | | 7 Daleswood Avenue, Barnsley, South Yorkshire, S70 6QF |
| HAYWARD, John Trevor Saxelby RESIGNED | Secretary | 12 Oct 2004 | 19 Jan 2007 | | | 7 Daleswood Avenue, Barnsley, South Yorkshire, S70 6QF |
| LISTER, Thomas James RESIGNED | Secretary | 14 Aug 2008 | 30 Jun 2015 | | | Meadowhall Road, Sheffield, South Yorkshire, S9 1BT |
| PATTISON, Kelly Louise RESIGNED | Secretary | 27 Sep 2004 | 12 Oct 2004 | | | Flat 11, 55 Wilkinson Street, Sheffield, South Yorkshire, S10 2GJ |
| TRISTRAM, Alexander William Roger RESIGNED | Secretary | 30 Jun 2015 | 06 Nov 2017 | | | Unit 6b, Newton Business Centre, Newton Chambers Road, Chapeltown, Sheffield, S35 2PH, England |
| ALLEN, Joanna Claire RESIGNED | Director | 19 Feb 2016 | 28 Sep 2020 | England | December 1976 | Pressure Technologies Building, Meadowhall Road, Sheffield, S9 1BT, England |
| CLARK, Jonathan Dudley RESIGNED | Director | 19 Jan 2007 | 31 Dec 2007 | England | March 1957 | 203 Derby Road, Beeston, Nottingham, Nottinghamshire, NG9 3AP |
| DYSON, Roger Kenneth RESIGNED | Director | 27 Sep 2004 | 12 Oct 2004 | United Kingdom | September 1954 | 21 Haugh Lane, Sheffield, South Yorkshire, S11 9SA |
| HAMMELL, Stephen John RESIGNED | Director | 23 May 2023 | 31 Oct 2024 | United Kingdom | July 1973 | Pressure Technologies Building, Meadowhall Road, Sheffield, S9 1BT, United Kingdom |
| HAYWARD, John Trevor Saxelby RESIGNED | Director | 12 Oct 2004 | 01 Oct 2018 | United Kingdom | September 1961 | Unit 6b, Newton Business Centre, Newton Chambers Road, Chapeltown, Sheffield, S35 2PH, England |
| HOWGATE, Allison Jayne RESIGNED | Director | 23 May 2022 | 02 Dec 2022 | England | February 1967 | Pressure Technologies Building, Meadowhall Road, Sheffield, S9 1BT, England |
| LISTER, Thomas James RESIGNED | Director | 14 Aug 2008 | 30 Jun 2015 | England | August 1955 | Meadowhall Road, Sheffield, South Yorkshire, S9 1BT |
| LOCKING, James RESIGNED | Director | 23 May 2022 | 03 Mar 2023 | England | December 1972 | Pressure Technologies Building, Meadowhall Road, Sheffield, S9 1BT, England |
| REDFERN, Philip Lee RESIGNED | Director | 12 Oct 2004 | 28 Oct 2011 | England | November 1951 | Meadowhall Road, Sheffield, South Yorkshire, S9 1BT |
| WALTERS, Christopher Lee RESIGNED | Director | 01 Oct 2018 | 31 Jul 2026 | United Kingdom | January 1969 | Chesterfield Tube Company Ltd, Meadowhall Road, Sheffield, S9 1BT, England |