| HARLAND, Shima Rad ACTIVE | Secretary | 23 Mar 2024 | | | | Syensqo, Trinity Street, Oldbury, West Midlands, B69 4LN, England |
| DAIN, Mark St.John ACTIVE | Director | 19 Jul 2022 | | England | June 1967 | Syensqo, Trinity Street, Oldbury, West Midlands, B69 4LN, England |
| DOCHERTY, Gordon Findlay ACTIVE | Director | 19 Jul 2022 | | England | September 1971 | Syensqo, Trinity Street, Oldbury, West Midlands, B69 4LN, England |
| BEASLEY, Christopher Ernest RESIGNED | Secretary | 12 Sep 2000 | 29 Feb 2004 | | | 213a Archway Road, Highgate, London, N6 5BN |
| BELL, Leslie RESIGNED | Secretary | | 30 Jun 1994 | | | 149 Western Way, Darras Hall Ponteland, Newcastle Upon Tyne, Tyne & Wear, NE20 9LY |
| DUBIN, Thomas I H RESIGNED | Secretary | 21 Mar 1999 | 12 Sep 2000 | | | 10 Aberdeen Road, Chatham Township, Nj 07928, Usa |
| HECHT, Beth Posnack RESIGNED | Secretary | 15 Jul 1998 | 31 Dec 1998 | | | 295 Phillips Hill Road, New City, Ny 10956, United States |
| IAPICHINO, Alex RESIGNED | Secretary | 09 Mar 2023 | 22 Mar 2024 | | | Solvay Solutions, Trinity Street, Oldbury, B69 4LW, England |
| MURPHY, Alison RESIGNED | Secretary | 14 Sep 2007 | 01 Jan 2022 | | | 34, Clarendon Road, Watford, Hertfordshire, WD17 1JJ, United Kingdom |
| PALMER, Jane Ann RESIGNED | Secretary | 29 Feb 2004 | 14 Sep 2007 | | | 38 Manor Road, Teddington, Middlesex, TW11 8AB |
| RAD, Shima RESIGNED | Secretary | 01 Jan 2022 | 09 Mar 2023 | | | 34, Clarendon Road, Watford, WD17 1JJ, United Kingdom |
| TROPSA, Jon E RESIGNED | Secretary | 01 Jan 1999 | 21 Mar 1999 | | | 35 Griffith Lane, Ridgefield, Ct 06877, 06877, Usa |
| WEIR, John Edward RESIGNED | Secretary | 01 Jul 1994 | 31 May 1998 | | | 44 Greystoke Park, Gosforth, Newcastle Upon Tyne, NE3 2DZ |
| ALLISON, David RESIGNED | Director | 10 Sep 2003 | 11 Jun 2004 | | June 1965 | 6 Baliol Croft, Long Newton, Stockton On Tees, Cleveland, TS21 1PX |
| BELL, Leslie RESIGNED | Director | | 30 Jun 1994 | | January 1933 | 149 Western Way, Darras Hall Ponteland, Newcastle Upon Tyne, Tyne & Wear, NE20 9LY |
| CHAPPLE, Charles Lyn RESIGNED | Director | 10 Aug 1995 | 30 Jun 1997 | | August 1949 | Woodend, Hebron, Morpeth, Northumberland, NE61 3LA |
| CLARK, Alan Robert RESIGNED | Director | | 03 Jul 1998 | United Kingdom | November 1946 | 14 Woodlands, North Shields, Tyne & Wear, NE29 9JS |
| COOK, Kevin Peter RESIGNED | Director | 05 Jul 2004 | 31 Mar 2006 | United Kingdom | October 1964 | Dairy House, Steel, Hexham, Northumberland, NE47 0LG |
| DUBIN, Thomas I H RESIGNED | Director | 21 Mar 1999 | 12 Sep 2000 | | March 1962 | 10 Aberdeen Road, Chatham Township, Nj 07928, Usa |
| DUTTON, Tom RESIGNED | Director | 01 Dec 2014 | 30 Sep 2024 | United Kingdom | September 1964 | Solvay Solutions, Trinity Street, Oldbury, B69 4LW, England |
| FORD, Hugh Francis RESIGNED | Director | 10 Aug 1995 | 07 Jul 1998 | | August 1945 | The Old Vicarage Church Lane, Frosterley, Bishop Auckland, County Durham, DL13 2QT |
| GREEN, Nicholas Stewart RESIGNED | Director | 23 Apr 2003 | 31 Mar 2006 | | May 1964 | 2 Paddock Place, Columbia, Sc 29223, Usa |
| GRIFFITH, Michael RESIGNED | Director | 29 Oct 1997 | 12 Sep 2000 | | October 1958 | 83 Sawmill Lane, Greenwich, Connecticut, Massachusetts, CT06 830, Usa |
| HAMPSON, Stephen RESIGNED | Director | 01 Jun 2006 | 30 Sep 2010 | | July 1965 | Rhodia Uk Limited, Trinity Street, Oldbury, West Midlands, B69 4LN, United Kingdom |
| HECHT, Beth Posnack RESIGNED | Director | 15 Jul 1998 | 31 Dec 1998 | | December 1963 | 295 Phillips Hill Road, New City, Ny 10956, United States |
| LOXHAM, Geoffrey Edward RESIGNED | Director | 10 Aug 1995 | 31 Jul 1997 | | May 1951 | 6 Dene Close Felton Lodge, Felton, Morpeth, Northumberland, NE65 9DH |
| MALLET, Marc Antoine RESIGNED | Director | 15 Nov 2000 | 20 Mar 2003 | | January 1959 | 12 Rue De L'Abbaye D'Ainay, Lyon, 69002, FOREIGN, France |
| MUHS, Wolfgang Hugo RESIGNED | Director | 05 Jul 2004 | 13 Jan 2006 | | July 1946 | Dodley Farm, Stamfordham, Newcastle Upon Tyne, NE18 0LQ |
| MURPHY, Alison RESIGNED | Director | 07 Jun 2010 | 30 Aug 2022 | United Kingdom | December 1965 | 34, Clarendon Road, Watford, Hertfordshire, WD17 1JJ, United Kingdom |
| PARRISH, Michael Anthony RESIGNED | Director | | 30 Apr 1992 | | February 1943 | 2 Whitegates, Longhorsley, Morpeth, Northumberland, NE65 8UJ |
| PROCTOR, Gordon David RESIGNED | Director | 23 Feb 1995 | 10 Aug 1995 | | September 1949 | Otways Washington Road, Storrington, Pulborough, West Sussex, RH20 4BY |
| RAYNOR, David Frank RESIGNED | Director | 10 Aug 1995 | 07 Jul 1998 | | December 1944 | The Shielding, Nedderton Village, Bedlington, Northumberland, NE22 6AX |
| RIDDELL, William, Dr RESIGNED | Director | 10 Aug 1995 | 31 May 1998 | | July 1937 | 74 Darras Road, Ponteland, Newcastle Upon Tyne, NE20 9PG |
| ROUTLEDGE, David Arthur RESIGNED | Director | 10 Aug 1995 | 07 Jul 1998 | | August 1958 | 9 Heswall Road, Northburn Dale, Cramlington, Northumberland, NE23 9UU |
| SHOTT, Ian Dermot RESIGNED | Director | 01 Sep 1998 | 26 Mar 2003 | England | February 1957 | Glengairn 14 South Drive, Woolsington, Newcastle Upon Tyne, Tyne & Wear, NE13 8AN |
| STEEL, Alistair James RESIGNED | Director | 29 May 2003 | 16 Dec 2005 | | April 1951 | Badgers Retreat Roundheads End, Forty Green, Beaconsfield, Buckinghamshire, HP9 1YB |
| THORPE, John Graham, Dr RESIGNED | Director | 10 Aug 1995 | 07 Jul 1998 | | October 1944 | 22 Park Drive, Melton Park, Newcastle Upon Tyne, NE3 5QB |
| THUILLIEZ, Gordon Dennis RESIGNED | Director | 23 Feb 1995 | 10 Aug 1995 | | December 1942 | 46 Kings Drive, Surbiton, Surrey, KT5 8NQ |
| TROPSA, Jon E RESIGNED | Director | 01 Jan 1999 | 12 Sep 2000 | | November 1955 | 35 Griffith Lane, Ridgefield, Ct 06877, 06877, Usa |
| TYLER, Robert William RESIGNED | Director | 21 Dec 2001 | 30 Nov 2014 | United Kingdom | February 1947 | Oak House, Reeds Crescent, Watford, Herts, WD24 4QP, United Kingdom |
| VIDAL, Philippe RESIGNED | Director | 10 Sep 2001 | 21 Dec 2001 | | June 1941 | House No 1, 2 Frithwood Avenue, Northwood, Middlesex, HA6 3LX |
| WARNOCK-SMITH, Anthony RESIGNED | Director | 23 Feb 1995 | 10 Aug 1995 | | November 1946 | 167 Malden Road, New Malden, Surrey, KT3 6AA |
| WEIR, John Edward RESIGNED | Director | 01 Jul 1994 | 31 May 1998 | United Kingdom | June 1948 | 44 Greystoke Park, Gosforth, Newcastle Upon Tyne, NE3 2DZ |