| A G SECRETARIAL LIMITED ACTIVE | Secretary | 21 Dec 2023 | | | | 41, Lothbury, London, EC2R 7HG, United Kingdom |
| POWELL, Sharon Lesley ACTIVE | Director | 31 Oct 2024 | | United Kingdom | February 1966 | Solvay House, Baronet Road, Warrington, Cheshire, WA4 6HA |
| BOOTE, Michael George Ernest RESIGNED | Secretary | 23 Nov 1992 | 30 Sep 1996 | | | 166 Rownhams Lane, North Baddesley, Southampton, Hampshire, SO52 9LT |
| CHAPMAN, Michael James RESIGNED | Secretary | 01 Oct 1996 | 31 Dec 1998 | | | 78 Larkhall Lane, Harpole, Northamptonshire, NN7 4DF |
| DAWES, Melvin John RESIGNED | Secretary | 01 Jan 1999 | 18 Oct 2016 | | | Solvay Uk Holding Company Limited, Oak House, Reeds Crescent, Watford, Hertfordshire, WD24 4QP |
| IAPICHINO, Alex RESIGNED | Secretary | 09 Mar 2023 | 21 Dec 2023 | | | 34, Clarendon Road, Watford, WD17 1JJ, United Kingdom |
| MURPHY, Alison RESIGNED | Secretary | 18 Oct 2016 | 01 Jan 2022 | | | Solvay Uk, 34 Clarendon Road, Watford, Hertfordshire, WD17 1JJ, United Kingdom |
| RAD, Shima RESIGNED | Secretary | 01 Jan 2022 | 09 Mar 2023 | | | 34, Clarendon Road, Watford, WD17 1JJ, United Kingdom |
| SWIFT INCORPORATIONS LIMITED RESIGNED | Nominee Secretary | 23 Nov 1992 | 23 Nov 1992 | | | 26, Church Street, London, NW8 8EP |
| BARRACLOUGH, Craig Robert RESIGNED | Director | 05 Oct 2015 | 14 Aug 2020 | United Kingdom | July 1974 | Solvay House, Baronet Road, Warrington, Cheshire, WA4 6HA |
| BROUHNS, Alexis Michel RESIGNED | Director | 30 Jun 2009 | 25 Jun 2021 | Belgium | May 1955 | Solvay House, Baronet Road, Warrington, Cheshire, WA4 6HA |
| DAIN, Mark St.John RESIGNED | Director | 25 Jul 2022 | 01 Jul 2023 | England | June 1967 | 34, Clarendon Road, Watford, Hertfordshire, WD17 1JJ, United Kingdom |
| DAWES, Melvin John RESIGNED | Director | 01 Jul 2003 | 31 May 2023 | United Kingdom | April 1967 | Solvay Uk, 34 Clarendon Road, Watford, Hertfordshire, WD17 1JJ, United Kingdom |
| DE CUYPER, Vincent RESIGNED | Director | 01 May 2006 | 14 Aug 2013 | | June 1961 | Solvay House, Baronet Road, Warrington, Cheshire, WA4 6HA |
| DE LAGUICHE, Bernard Philippe Marie Philibert RESIGNED | Director | 01 Mar 2006 | 14 Aug 2013 | | August 1959 | Solvay House, Baronet Road, Warrington, Cheshire, WA4 6HA |
| DEGREVE, Rene Henri RESIGNED | Director | 01 Oct 1995 | 01 Mar 2006 | | March 1943 | Av Des Quatre Saisons 14, Waterloo, 1410, Belgium |
| DUHEM, Marc Rene Philippe RESIGNED | Director | 03 Mar 2000 | 30 Jun 2009 | | July 1944 | Calle Mallorca, 269 1er Piso, 08008 Barcelona, Spain |
| EDMONDS, Ernest Alderson, Dr RESIGNED | Director | 01 Jul 2003 | 01 Apr 2006 | | April 1954 | Solvay Chemicals Ltd, Baronet Works, Baronet Road, Warrington, Cheshire, WA4 6HB |
| FRIESEWINKEL, Robert RESIGNED | Director | 05 Mar 1993 | 30 Sep 1993 | | October 1930 | 76 Rue Saint Bernard, Brussels 1060, FOREIGN, Belgium |
| GIANNUZZI, Marco RESIGNED | Director | 01 Jul 2023 | 01 Sep 2026 | Belgium | December 1974 | Solvay House, Baronet Road, Warrington, Cheshire, WA4 6HA |
| JANSSEN, Daniel Emmanuel Adrian Rene, Baron RESIGNED | Director | 05 Mar 1993 | 03 Jun 1998 | | April 1936 | La Ronciere, 108 Avenue Ernest Solvay, La Hulpe, 1310, Belgium |
| JOURQUIN, Christian Fernand RESIGNED | Director | 01 Jul 2003 | 10 May 2012 | | June 1948 | Solvay House, Baronet Road, Warrington, Cheshire, WA4 6HA |
| LEBRUN, Michel Paul Auguste Camille Ghislain RESIGNED | Director | 30 Sep 1993 | 26 Nov 1996 | | May 1936 | Avenue Des Ortolans 105, Brussels, Belgium B-1170, FOREIGN, Belgium |
| LEBRUN, Michel Paul Auguste Camille Ghislain RESIGNED | Director | 23 Nov 1992 | 05 Mar 1993 | | May 1936 | Avenue Des Ortolans 105, Brussels, Belgium B-1170, FOREIGN, Belgium |
| LEFEBVRE, Henri Albert Andre Leon RESIGNED | Director | 01 Jul 2003 | 02 Aug 2005 | | October 1939 | Avenue Du Verger 9, 14 Braine L Alleud, Belgium |
| LEVY-MORELLE, Jacques RESIGNED | Director | 01 Jul 2003 | 31 May 2010 | | December 1946 | 40 Rue De La Falise, Baisy-Thy, FOREIGN, Belgium |
| LOUTREL, Claude RESIGNED | Director | 05 Mar 1993 | 01 Oct 1995 | | October 1930 | Avenue Napoleon 144, Brussels, FOREIGN, Belgium |
| MICHIELSEN, Alois RESIGNED | Director | 05 Mar 1993 | 09 May 2006 | | January 1942 | Champ D'Al Vau 23, Ohain 1328, Belgium |
| MILNE, John Drummond, Sir RESIGNED | Director | 05 Mar 1993 | 06 Jun 1996 | | August 1924 | Chilton House, Chilton Candover, Alresford, Hampshire, SO24 9TX |
| MINTON, Kenneth Joseph RESIGNED | Director | 15 Oct 1996 | 09 May 2006 | United Kingdom | January 1937 | 7 Midway, St Albans, Hertfordshire, AL3 4BD |
| MURPHY, Alison RESIGNED | Director | 26 Feb 2016 | 30 Aug 2022 | United Kingdom | December 1965 | Solvay House, Baronet Road, Warrington, Cheshire, WA4 6HA |
| PETER, John Beverly, Dr RESIGNED | Director | 01 Apr 2006 | 14 Aug 2013 | | March 1943 | June Cottage, St Aubyn's Lane, Hangersley, Hampshire, BH22 3JU |
| PRITCHARD, Alan William RESIGNED | Director | 23 Dec 2014 | 31 Oct 2015 | United Kingdom | January 1958 | Solvay House, Baronet Road, Warrington, Cheshire, WA4 6HA |
| SHARPE, Len RESIGNED | Director | 14 Aug 2013 | 05 Oct 2015 | United Kingdom | August 1951 | Solvay House, Baronet Road, Warrington, Cheshire, WA4 6HA |
| TARVER, Richard Paul RESIGNED | Director | 25 Jul 2022 | 31 Oct 2024 | United Kingdom | July 1967 | Solvay House, Baronet Road, Warrington, Cheshire, WA4 6HA, United Kingdom |
| THYLMANN, Michael RESIGNED | Director | 15 Sep 1998 | 18 Dec 2006 | | September 1943 | Avenue Baron D'Huart 239, 1950 Kraainem, Belgium |
| TYLER, Robert William RESIGNED | Director | 14 Aug 2013 | 05 Dec 2014 | United Kingdom | February 1947 | Solvay House, Baronet Road, Warrington, Cheshire, WA4 6HA |
| VAN DE BERG, Jean-Jacques Francois, Monsieur RESIGNED | Director | 05 Mar 1993 | 04 Jun 1998 | | June 1941 | Domaine "Le Rochemur", Rue Des Fleurs, 10, Rixensart, 1330, Belgium |
| WEBB, Simon Arthur RESIGNED | Director | 01 Dec 1996 | 18 Dec 2015 | United Kingdom | March 1964 | Solvay House, Baronet Road, Warrington, Cheshire, WA4 6HA |