| HARBER, Ben ACTIVE | Secretary | 07 Oct 2020 | | | | Hemerdon Mine, Drakelands, Plympton, Devon, PL7 5BS, United Kingdom |
| CALLAGHAN, Katherine Sophie ACTIVE | Director | 01 Oct 2026 | | United Kingdom | July 1974 | Hemerdon Mine, Drakelands, Plympton, Devon, PL7 5BS, United Kingdom |
| CATHER, David Connal ACTIVE | Director | 07 Sep 2021 | | England | August 1959 | Hemerdon Mine, Drakelands, Plympton, Devon, PL7 5BS, United Kingdom |
| COURT, Jeffery Arnold ACTIVE | Director | 08 Oct 2024 | | United Kingdom | April 1972 | Hemerdon Mine, Drakelands, Plympton, Devon, PL7 5BS, United Kingdom |
| EDWARDS, Guy Charles ACTIVE | Director | 04 Sep 2023 | | United Kingdom | November 1965 | Hemerdon Mine, Drakelands, Plympton, Devon, PL7 5BS, United Kingdom |
| HARRISON, Stephen Richard ACTIVE | Director | 04 Dec 2024 | | United Kingdom | February 1968 | Hemerdon Mine, Drakelands, Plympton, Devon, PL7 5BS, United Kingdom |
| MAXEY, Richard William Macfarlane ACTIVE | Director | 09 Dec 2020 | | England | February 1978 | 16, Molyneux Street, London, W1H 5HL, United Kingdom |
| POVEY, Philip Clifton ACTIVE | Director | 05 Dec 2025 | | Indonesia | June 1978 | Hemerdon Mine, Drakelands, Plympton, Devon, PL7 5BS, United Kingdom |
| ROSS, Kevin John ACTIVE | Director | 04 Sep 2023 | | Ireland | April 1954 | Hemerdon Mine, Drakelands, Plympton, Devon, PL7 5BS, United Kingdom |
| ASHLEY, Robert Norman RESIGNED | Director | 07 Sep 2021 | 24 Nov 2022 | United Kingdom | July 1950 | Shakespeare Martineau Llp, 6th Floor, 60 Gracechurch Street, London, EC3V 0HR, United Kingdom |
| BOUGOURD, Adrian Richard RESIGNED | Director | 04 Sep 2023 | 29 Sep 2026 | United Kingdom | November 1981 | Hemerdon Mine, Drakelands, Plympton, Devon, PL7 5BS, United Kingdom |
| DENNING, Maximillian Campbell RESIGNED | Director | 25 Mar 2019 | 02 Aug 2022 | England | February 1990 | Shakespeare Martineau Llp, 6th Floor, 60 Gracechurch Street, London, EC3V 0HR, United Kingdom |
| FABIAN, Stephen Leslie RESIGNED | Director | 16 Apr 2018 | 07 Sep 2021 | United Kingdom | January 1964 | Shakespeare Martineau Llp, 6th Floor, 60 Gracechurch Street, London, EC3V 0HR, United Kingdom |
| GAWTHORPE, Neil RESIGNED | Director | 24 Mar 2023 | 03 Jul 2024 | United Kingdom | May 1972 | Shakespeare Martineau Llp, 6th Floor, 60 Gracechurch Street, London, EC3V 0HR, United Kingdom |
| JOHNSTONE, Francis Patrick Harcourt RESIGNED | Director | 23 May 2019 | 13 Mar 2023 | England | September 1965 | 15, Bowling Green Lane, London, EC1R 0BD, England |
| STEVENS, Grace Elanor RESIGNED | Director | 07 Sep 2021 | 13 Mar 2023 | United Kingdom | May 1977 | Shakespeare Martineau Llp, 6th Floor, 60 Gracechurch Street, London, EC3V 0HR, United Kingdom |
| STOBIE, Alistair Milburn Macdonald RESIGNED | Director | 03 Jul 2024 | 22 Sep 2025 | United Kingdom | August 1966 | Hemerdon Mine, Drakelands, Plympton, Devon, PL7 5BS, United Kingdom |
| THOMPSON, Mark Edward RESIGNED | Director | 25 Mar 2019 | 16 May 2023 | England | June 1972 | Shakespeare Martineau Llp, 6th Floor, 60 Gracechurch Street, London, EC3V 0HR, United Kingdom |
| WIDDOWSON, Anthony Nigel RESIGNED | Director | 21 Jul 2021 | 16 Aug 2023 | United Kingdom | September 1968 | Shakespeare Martineau Llp, 6th Floor, 60 Gracechurch Street, London, EC3V 0HR, United Kingdom |
| WOOD, Martin John RESIGNED | Director | 24 Nov 2022 | 29 Sep 2026 | United Kingdom | March 1969 | Hemerdon Mine, Drakelands, Plympton, Devon, PL7 5BS, United Kingdom |