| SAMBROOK, Mark Jamie ACTIVE | Secretary | 26 May 2017 | | | | Hersham Place Technology Park, Molesey Road, Walton On Thames, Surrey, KT12 4RZ |
| BOOCOCK, Richard John ACTIVE | Director | 04 May 2016 | | England | April 1961 | Hersham Place Technology Park, Molesey Road, Walton On Thames, Surrey, KT12 4RZ |
| STINNER, Charles George ACTIVE | Director | 04 May 2016 | | United States | April 1963 | C/O Law Department, Air Products Plc, Hersham Place Technology Park, Molesey Road, Walton-On-Thames, Surrey, KT12 4RZ, England |
| WEIGARD, Gregory Earl, Mr. ACTIVE | Director | 04 May 2016 | | United States | February 1954 | C/O Law Department, Air Products Plc, Hersham Place Technology Park, Molesey Road, Walton-On-Thames, Surrey, KT12 4RZ, England |
| LLOYD, Caroline Mary RESIGNED | Secretary | 07 Jan 2002 | 14 Mar 2008 | | | The Little House, Knightons Lane, Dunsfold, Godalming, Surrey, GU8 4NU |
| MORRISON-BELL, William Hollin Dayrell, Sir RESIGNED | Secretary | 11 Dec 2012 | 26 May 2017 | | | Hersham Place Technology Park, Molesey Road, Walton On Thames, Surrey, KT12 4RZ |
| SHERIDAN, Diane Lorraine RESIGNED | Secretary | 14 Apr 2010 | 11 Dec 2012 | | | Hersham Place Technology Park, European Law Group,, Air Products Plc,Molesey Road, Walton-On-Thames, Surrey, KT12 4RZ, United Kingdom |
| STANLEY, John David RESIGNED | Secretary | 14 Mar 2008 | 24 Jun 2009 | | | 1743, Creek View Drive, Fogelsville, Pennsylvania, PA 18051, U.S.A. |
| THOMAS, Howard RESIGNED | Nominee Secretary | 12 Nov 1997 | 21 Nov 1997 | | | 50 Iron Mill Place, Crayford, Kent, DA1 4RT |
| TUFNELL, John Francis, Mr. RESIGNED | Secretary | 24 Jun 2009 | 14 Apr 2010 | | | Hersham Place Technology Park, Molesey Road, Walton On Thames, Surrey, KT12 4RZ |
| TUFNELL, John Francis, Mr. RESIGNED | Secretary | 21 Nov 1997 | 07 Jan 2002 | | | 32 Lower Hill Road, Epsom, Surrey, KT19 8LT |
| BROESE VAN GROENOU, Leonard Victor RESIGNED | Director | 21 Nov 1997 | 29 Nov 2000 | United Kingdom | January 1947 | 23 Oatlands Close, Weybridge, Surrey, KT13 9EE |
| CHINOY, Noshir RESIGNED | Director | 02 Feb 1998 | 27 Feb 1998 | | October 1947 | 3401 W. Highland Street, Allentown, PA18104, Usa |
| HULBERT, Timothy Martin RESIGNED | Director | 05 Jan 2015 | 04 May 2016 | England | September 1970 | Hersham Place Technology Park, Molesey Road, Walton On Thames, Surrey, KT12 4RZ |
| LENEY, David RESIGNED | Director | 09 Apr 2014 | 04 May 2016 | England | February 1967 | Hersham Place Technology Park, Molesey Road, Walton On Thames, Surrey, KT12 4RZ |
| LLOYD, Caroline Mary RESIGNED | Director | 11 Dec 2012 | 28 Oct 2014 | United Kingdom | October 1961 | Hersham Place Technology Park, Molesey Road, Walton On Thames, Surrey, KT12 4RZ |
| LLOYD, Caroline Mary RESIGNED | Director | 07 Jan 2002 | 14 Mar 2008 | England | October 1961 | The Little House, Knightons Lane, Dunsfold, Godalming, Surrey, GU8 4NU |
| MORRISON-BELL, William Hollin Dayrell, Sir RESIGNED | Director | 02 Feb 1998 | 04 May 2016 | England | June 1956 | Hersham Place Technology Park, Molesey Road, Walton On Thames, Surrey, KT12 4RZ |
| NELIGAN, Patrick Moore RESIGNED | Director | 21 May 2007 | 04 May 2016 | Spain | June 1963 | Hersham Place Technology Park, Molesey Road, Walton On Thames, Surrey, KT12 4RZ |
| SHERIDAN, Diane Lorraine RESIGNED | Director | 14 Apr 2010 | 11 Dec 2012 | Usa | June 1950 | Hersham Place Technology Park, European Law Group, Air Products Plc,Molesey Road, Walton-On-Thames, Surrey, KT12 4RZ |
| SOBYAK, Francis Joseph RESIGNED | Director | 02 Feb 1998 | 27 Feb 1998 | | June 1938 | 304 Doe Run Lane, Radnor, PA19087, Usa |
| STANLEY, John David RESIGNED | Director | 14 Mar 2008 | 24 Jun 2009 | | November 1958 | 1743, Creek View Drive, Fogelsville, Pennsylvania, PA 18051, U.S.A. |
| TESTER, William Andrew Joseph RESIGNED | Nominee Director | 12 Nov 1997 | 21 Nov 1997 | United Kingdom | June 1962 | 4 Geary House, Georges Road, London, N7 8EZ |
| TUFNELL, John Francis, Mr. RESIGNED | Director | 24 Jun 2009 | 14 Apr 2010 | United Kingdom | April 1950 | Hersham Place Technology Park, Molesey Road, Walton On Thames, Surrey, KT12 4RZ |
| TUFNELL, John Francis, Mr. RESIGNED | Director | 21 Nov 1997 | 07 Jan 2002 | United Kingdom | April 1950 | 32 Lower Hill Road, Epsom, Surrey, KT19 8LT |