| BROWN, Anthony James ACTIVE | Director | 02 Mar 2026 | | United Kingdom | February 1965 | Unit P4, Europa Link, Sheffield, S9 1XU, England |
| HARTLAND, Malcolm Robert ACTIVE | Director | 02 Mar 2026 | | United Kingdom | June 1970 | Unit P4, Europa Link, Sheffield, S9 1XU, England |
| ROBINSON, Keith RESIGNED | Secretary | 01 Jul 2017 | 16 Aug 2017 | | | C/O Cooper & Turner Ltd, Templeborough Works, Sheffield Road, Sheffield, South Yorkshire, S9 1RS |
| SANDERSON, Grahame Irwin RESIGNED | Secretary | | 30 Jun 2017 | | | Templeborough Works, Sheffield Road, Sheffield, South Yorkshire, S9 1RS |
| GRAVITAS COMPANY SECRETARIAL SERVICES LIMITED RESIGNED | Secretary | 16 Aug 2017 | 16 Feb 2018 | | | One, New Change, London, EC4M 9AF, England |
| BROWN, Anthony James RESIGNED | Director | 27 Oct 1993 | 16 Aug 2017 | United Kingdom | February 1965 | Templeborough Works, Sheffield Road, Sheffield, South Yorkshire, S9 1RS |
| BROWN, David Richard RESIGNED | Director | 01 Apr 1996 | 16 Aug 2017 | England | August 1967 | Templeborough Works, Sheffield Road, Sheffield, South Yorkshire, S9 1RS |
| BROWN, James Richard RESIGNED | Director | | 27 Apr 1994 | | April 1936 | Bridge House, Cawfields, Haltwhistle, Northumberland, NE49 9NW |
| CHATTERTON, Allan RESIGNED | Director | | 24 Feb 1994 | | February 1934 | 24 North Brook Road, Hadfield, Glossop, Derbyshire, SK13 2EZ |
| FINDLAY, Donald Murray RESIGNED | Director | 06 Jul 2011 | 16 Aug 2017 | Scotland | March 1952 | Templeborough Works, Sheffield Road, Sheffield, South Yorkshire, S9 1RS |
| JORDAN, Bryan Vincent RESIGNED | Director | | 30 Jan 2004 | | October 1944 | 10 Forest Drive, Rickleton, Washington, Tyne & Wear, NE38 9JD |
| KAROL, Steven Edward, Mr. RESIGNED | Director | 16 Aug 2017 | 02 Mar 2026 | United States | May 1954 | 321, Newbury Street, Boston, Ma, 02115, United States |