| A G SECRETARIAL LIMITED ACTIVE | Secretary | 21 Dec 2023 | | | | 41, Lothbury, London, EC2R 7HG, United Kingdom |
| GIANNUZZI, Marco ACTIVE | Director | 11 Jan 2022 | | Belgium | December 1974 | Solvay House, Baronet Road, Warrington, Cheshire, WA4 6HA, United Kingdom |
| POWELL, Sharon Lesley ACTIVE | Director | 31 Oct 2024 | | United Kingdom | February 1966 | Solvay House, Baronet Road, Warrington, Cheshire, WA4 6HA |
| ATKINSON, John RESIGNED | Secretary | | 31 Oct 1998 | | | 62 Clifton Road, Runcorn, Cheshire, WA7 4SZ |
| CHAPMAN, Michael James RESIGNED | Secretary | 31 Oct 1998 | 31 Dec 1998 | | | 78 Larkhall Lane, Harpole, Northamptonshire, NN7 4DF |
| DAWES, Melvin John RESIGNED | Secretary | 01 Jan 1999 | 20 Dec 2016 | | | Solvay Uk Holding Company Limited, Oak House, Reeds Crescent, Watford, Hertfordshire, WD24 4QP |
| IAPICHINO, Alex RESIGNED | Secretary | 09 Mar 2023 | 21 Dec 2023 | | | Solvay House, Baronet Road, Warrington, Cheshire, WA4 6HA |
| MURPHY, Alison RESIGNED | Secretary | 20 Dec 2016 | 01 Jan 2022 | | | 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 |
| ALLEN, Jean RESIGNED | Director | 02 Mar 2015 | 30 Jun 2019 | England | September 1958 | Solvay House, Baronet Road, Warrington, Cheshire, WA4 6HA |
| BARRACLOUGH, Craig Robert RESIGNED | Director | 05 Oct 2015 | 14 Aug 2020 | United Kingdom | July 1974 | Solvay House, Baronet Road, Warrington, Cheshire, WA4 6HA |
| BROWN, Foster RESIGNED | Director | 01 Jul 1997 | 01 Jul 2001 | | February 1952 | Allee Du Chevreuil 6, Waterloo, Brabant, Belgium |
| CERCHIARI DE OLIVEIRA, Fabiano RESIGNED | Director | 15 Oct 2020 | 31 Dec 2021 | Belgium | November 1972 | Solvay House, Baronet Road, Warrington, Cheshire, WA4 6HA, United Kingdom |
| CHRISTIAENS, Jean RESIGNED | Director | 01 Jul 1997 | 01 Mar 2000 | | February 1935 | Ixelles, Begium 1050 |
| DAIN, Mark St.John RESIGNED | Director | 25 Aug 2022 | 01 Jul 2023 | England | June 1967 | 34, Clarendon Road, Watford, Hertfordshire, WD17 1JJ, United Kingdom |
| DE CUYPER, Vincent RESIGNED | Director | 01 May 2006 | 19 Oct 2011 | | June 1961 | Solvay House, Baronet Road, Warrington, Cheshire, WA4 6HA |
| DEGREVE, Rene Henri RESIGNED | Director | 01 Oct 1993 | 30 Jun 2003 | | March 1943 | Av Des Quatre Saisons 14, Waterloo, 1410, Belgium |
| DUHEM, Marc RESIGNED | Director | | 31 Dec 1995 | | July 1944 | 186 Rue Jacques Jordaens, 1050 Bruxelles, Belgium |
| EDMONDS, Ernest Alderson, Dr RESIGNED | Director | 01 Jul 2003 | 01 Jan 2006 | | April 1954 | Solvay Chemicals Ltd, Baronet Works, Baronet Road, Warrington, Cheshire, WA4 6HB |
| FEDELI, Massimo RESIGNED | Director | 04 Dec 2023 | 29 May 2026 | Belgium | March 1971 | Solvay House, Baronet Road, Warrington, Cheshire, WA4 6HA |
| FRIESEWINKEL, Robert RESIGNED | Director | | 30 Sep 1993 | | October 1930 | 76 Rue Saint Bernard, Brussels 1060, FOREIGN, Belgium |
| GRANDE, Jorge RESIGNED | Director | 02 Feb 2004 | 31 Mar 2008 | | June 1961 | 82 Stansfield Drive, Regents Square, Grappenhall Heys, Warrington, WA4 3EA, Cheshire |
| HUART, Michele RESIGNED | Director | 01 Jul 2003 | 01 Apr 2007 | | February 1963 | Allee Du Jaquemart 2, Boite 12, 1400 Nivelles, Belgium |
| JANSSEN, Daniel Emmanuel Adrian Rene, Baron RESIGNED | Director | | 03 Jun 1998 | | April 1936 | La Ronciere, 108 Avenue Ernest Solvay, La Hulpe, 1310, Belgium |
| JOURQUIN, Christian Fernand RESIGNED | Director | 01 Mar 2000 | 01 May 2006 | | June 1948 | Avenue E La Constitution 73, 1083 Bruxelles, Belgium |
| JOURQUIN, Christian Fernand RESIGNED | Director | 01 Jan 1996 | 30 Jun 1997 | | June 1948 | Avenue E La Constitution 73, 1083 Bruxelles, Belgium |
| LEVY-MORELLE, Jacques RESIGNED | Director | 01 Aug 1992 | 30 Jun 2003 | | December 1946 | 40 Rue De La Falise, Baisy-Thy, FOREIGN, Belgium |
| LOUTREL, Claude RESIGNED | Director | | 30 Sep 1995 | | October 1930 | Avenue Napoleon 144, Brussels, FOREIGN, Belgium |
| MICHIELSEN, Aloysius RESIGNED | Director | 01 Oct 1995 | 30 Jun 2003 | | January 1942 | Chemin De Bas-Ransbeck 5a, Ohain, B 1380, Belgium |
| MIGNONAT, Eric RESIGNED | Director | 01 Jul 2001 | 19 Oct 2011 | | September 1956 | Solvay House, Baronet Road, Warrington, Cheshire, WA4 6HA |
| MURPHY, Alison RESIGNED | Director | 18 Dec 2015 | 30 Aug 2022 | United Kingdom | December 1965 | 34, Clarendon Road, Watford, Hertfordshire, WD17 1JJ, United Kingdom |
| OLIVEIRA, Jorge Miguel Amaral RESIGNED | Director | 01 Jul 2003 | 31 Oct 2008 | | May 1959 | Solvay Chemicals Ltd, Baronet Works Baronet Road, Warrington, Cheshire, WA4 6HB |
| PAPAGEORGES, Georges RESIGNED | Director | 01 Mar 1999 | 30 Jun 2003 | | September 1940 | 1 Grovelands, Boundary Way, Hemel Hempstead, Hertfordshire, HP2 7TE |
| POUND, Brian Henry RESIGNED | Director | 07 Jan 1997 | 01 Mar 1999 | United Kingdom | June 1942 | New Barns House, Drove Road, Southwick, Fareham, Hampshire, PO17 6EW |
| SCHNEIDER, Frank, Dr RESIGNED | Director | 19 Oct 2011 | 31 May 2013 | Germany | September 1957 | Solvay House, Baronet Road, Warrington, Cheshire, WA4 6HA, Uk |
| SHARPE, Len RESIGNED | Director | 01 Nov 2008 | 05 Oct 2015 | United Kingdom | August 1951 | Solvay House, Baronet Road, Warrington, Cheshire, WA4 6HA |
| TARVER, Richard Paul RESIGNED | Director | 15 Oct 2020 | 31 Oct 2024 | United Kingdom | July 1967 | Solvay House, Baronet Road, Warrington, Cheshire, WA4 6HA, United Kingdom |
| THYLMANN, Michael RESIGNED | Director | 15 Sep 1998 | 30 Jun 2003 | | September 1943 | Avenue Baron D'Huart 239, 1950 Kraainem, Belgium |
| VAN DE BERG, Jean-Jacques RESIGNED | Director | | 04 Jun 1998 | | June 1941 | Rue Des Fleurs 10, 1330 Rixensart, FOREIGN, Belgium |
| VANDENBUSSCHE, Alain RESIGNED | Director | 01 Mar 1999 | 30 Jun 2003 | | March 1950 | 8 The Chines, Cuddington, Northwich, Cheshire, CW8 2XA |
| VENBRUX, Henricus Lambertus Johannes RESIGNED | Director | 02 Mar 2015 | 31 Oct 2020 | Belgium | August 1958 | Solvay House, Baronet Road, Warrington, Cheshire, WA4 6HA |
| WEBB, Simon Arthur RESIGNED | Director | 01 Jul 2003 | 18 Dec 2015 | United Kingdom | March 1964 | Solvay House, Baronet Road, Warrington, Cheshire, WA4 6HA |