| VENABLES, Rod ACTIVE | Secretary | 01 Jul 2019 | | | | Tertiary Minerals Plc, Silk Point, Queens Avenue, Macclesfield, Cheshire, SK10 2BB, England |
| ARMITAGE, Michael Graham, Dr ACTIVE | Director | 28 Jan 2021 | | Wales | June 1962 | Sunrise House, Hulley Road, Macclesfield, Cheshire, SK10 2LP |
| BELCHER, Richard William, Dr ACTIVE | Director | 07 Mar 2025 | | England | February 1977 | Silk Point, Queens Avenue, Macclesfield, Cheshire, SK10 2BB, England |
| CHEETHAM, Patrick Lyn ACTIVE | Director | 03 Aug 1999 | | United Kingdom | February 1960 | Silk Point, Queens Avenue, Macclesfield, Cheshire, SK10 2BB |
| WERNDLE, Lorenz Joseph ACTIVE | Director | 27 Jul 2026 | | England | April 1975 | Silk Point, Queens Avenue, Macclesfield, Cheshire, SK10 2BB, England |
| CHEETHAM, Patrick Lyn RESIGNED | Secretary | 03 Aug 1999 | 28 Oct 1999 | | | Harrop Brow Farm, Shrigley Road, Pott Shrigley, Macclesfield, Cheshire, SK10 5SE |
| FITCH, Colin Digby Thomas RESIGNED | Secretary | 01 Oct 2006 | 30 Jun 2019 | | | Silk Point, Queens Avenue, Macclesfield, Cheshire, SK10 2BB, United Kingdom |
| HULLEY, Christine Wyn RESIGNED | Secretary | 02 Mar 2000 | 30 Sep 2006 | | | 2 Felltop Drive, Reddish Vale, Stockport, Cheshire, SK5 6YS |
| LEEMING, Steven John RESIGNED | Secretary | 28 Oct 1999 | 02 Mar 2000 | | | 30 Plymouth Drive, Bramhall, Stockport, Cheshire, SK7 2JB |
| BRITANNIA COMPANY FORMATIONS LIMITED RESIGNED | Secretary | 03 Aug 1999 | 03 Aug 1999 | | | The Britannia Suite, St James's Buildings, 79 Oxford Street, Manchester, M1 6FR |
| CHEETHAM, Karen Elizabeth RESIGNED | Director | 03 Aug 1999 | 28 Oct 1999 | | April 1961 | Harrop Brow Farm, Shrigley Road Pott Shrigley, Macclesfield, Cheshire, SK10 5SE |
| CLEMMEY, Richard Henry RESIGNED | Director | 09 May 2012 | 30 Jun 2020 | England | August 1972 | Silk Point, Queens Avenue, Macclesfield, Cheshire, SK10 2BB, England |
| CULLEN, Patrick Brendan RESIGNED | Director | 14 Sep 2021 | 13 Jun 2022 | Ireland | April 1971 | Silk Point, Tertiary Minerals Plc, Queens Avenue, Macclesfield, Cheshire, SK10 2BB, United Kingdom |
| MCALISTER, Donald Alexander Robert RESIGNED | Director | 28 Oct 1999 | 04 Aug 2026 | United Kingdom | April 1959 | Silk Point, Queens Avenue, Macclesfield, Cheshire, SK10 2BB |
| PRICE, Michael Allan, Dr RESIGNED | Director | 28 Oct 1999 | 01 May 2002 | United Kingdom | December 1955 | 6 Cambisgate, 109 Church Road, London, SW19 5AL |
| WHITEHEAD, David RESIGNED | Director | 30 Jun 2002 | 29 Nov 2017 | Ireland | May 1942 | Silk Point, Queens Avenue, Macclesfield, Cheshire, SK10 2BB, United Kingdom |
| BRITANNIA COMPANY FORMATIONS LIMITED RESIGNED | Director | 03 Aug 1999 | 03 Aug 1999 | | | The Britannia Suite, St James's Buildings, 79 Oxford Street, Manchester, M1 6FR |
| DEANSGATE COMPANY FORMATIONS LIMITED RESIGNED | Nominee Director | 03 Aug 1999 | 03 Aug 1999 | | | The Britannia Suite, Lauren Court, Wharf Road, Sale, M33 2AF, Greater Manchester |