| VISTRA COSEC LIMITED ACTIVE | Secretary | 19 Nov 2020 | | | | Ground Floor, Templeback, 10 Temple Back, Bristol, BS1 6FL, United Kingdom |
| SCHAFER, Chadwick Michael, Mr. ACTIVE | Director | 30 Oct 2020 | | United States | February 1981 | Suite 1, 7th Floor, 50 Broadway, London, SW1H 0BL, United Kingdom |
| AMOS, Michael Charles Gilbert RESIGNED | Secretary | 01 Aug 2001 | 30 Sep 2001 | | | 1 Harlands Grove, Orpington, Kent, BR6 7WB |
| DUFFY, Martin Robert Anthony RESIGNED | Secretary | 01 Oct 2001 | 01 Feb 2007 | | | 4 Ashwood Park, Lower Road, Fetcham, Surrey, KT22 9NT |
| EDWARDS, Timothy Philip RESIGNED | Secretary | | 01 Feb 2000 | | | 13 Old Palace Road, Guildford, Surrey, GU2 7TU |
| HANDS, Christopher Stephen RESIGNED | Secretary | 15 Apr 2015 | 30 Oct 2020 | | | Suite 1, 3rd Floor, 11-12 St. James's Square, London, SW1Y 4LB, United Kingdom |
| KERSLAKE, John Ernest Alfred RESIGNED | Secretary | 01 Feb 2000 | 31 Jul 2001 | | | Elmsleigh, Leatherhead Road, Great Bookham, Surrey, KT23 4RR |
| KROHG, Olaf Nicolai, Mr. RESIGNED | Secretary | 30 Oct 2020 | 24 Feb 2021 | | | Suite 1, 3rd Floor, 11-12 St. James's Square, London, SW1Y 4LB, United Kingdom |
| LAMB, Jonathan Stuart RESIGNED | Secretary | 07 Jul 2008 | 15 Dec 2010 | | | 8, Higher Drive, Banstead, Surrey, SM7 1PF |
| RAMSEY, Alison Tracy RESIGNED | Secretary | 15 Dec 2010 | 15 Apr 2015 | | | George Jessel House, Francis Avenue, Bournemouth, Dorset, BH11 8NX, United Kingdom |
| SAYERS, David George RESIGNED | Secretary | 01 Feb 2007 | 07 Jul 2008 | | | The Maples, Horsell Vale, Woking, Surrey, GU21 4QU |
| BENFIELD, Douglas Charles RESIGNED | Director | 14 Dec 1994 | 02 May 1995 | | March 1937 | Red House, Blacksmiths Lane Laleham-On-Thames, Staines, Middlesex, TW18 1UB |
| BOURTON, Richard Alan RESIGNED | Director | 07 Aug 1995 | 15 Nov 2000 | | April 1944 | Westerlands 9 Sondes Place Drive, Dorking, Surrey, RH4 3ED |
| BRIDGEWATER, Peter Jeremy RESIGNED | Director | 01 Jan 2013 | 03 Jul 2014 | England | March 1963 | George Jessel House, Francis Avenue, Bournemouth, Dorset, BH11 8NX, United Kingdom |
| CHEN, Dan RESIGNED | Director | 01 Nov 2017 | 30 Oct 2020 | Singapore | May 1975 | Suite 1, 3rd Floor, 11-12 St. James's Square, London, SW1Y 4LB, United Kingdom |
| COOMBS, Michael Andrew RESIGNED | Director | 14 May 2002 | 12 Jan 2006 | United Kingdom | December 1958 | Beechwood, Bailing Hill, Broadbridge Heath Road, Warmham, Horsham, RH12 3RT |
| GOSCOMB, Christopher Roderick John RESIGNED | Director | 28 Feb 1994 | 05 Nov 1998 | Uk | July 1952 | Chichele Cottage, 11 Chichele Road, Oxted, Surrey, RH8 0AE |
| GUY, David Michael RESIGNED | Director | 05 Oct 2010 | 31 Dec 2012 | United Kingdom | April 1969 | Highcroft, Frith Hill Road, Godalming, Surrey, GU7 2EE, England |
| HANDS, Stephen Christopher RESIGNED | Director | 30 Nov 2011 | 30 Oct 2020 | England | February 1968 | Suite 1, 3rd Floor, 11-12 St. James's Square, London, SW1Y 4LB, United Kingdom |
| HOLLINSHEAD, Steven John RESIGNED | Director | 01 Feb 2007 | 14 Sep 2009 | United Kingdom | March 1961 | 4 Strawberry Fields, Bisley, Surrey, GU24 9SP |
| HUNG, Kwok Hing Frederick, Mr. RESIGNED | Director | 30 Oct 2020 | 24 Feb 2021 | United States | August 1970 | Suite 1, 3rd Floor, 11-12 St. James's Square, London, SW1Y 4LB, United Kingdom |
| JARDINE, Thomas Philip RESIGNED | Director | 19 Jul 1995 | 08 May 1997 | | May 1953 | 10 Bennerley Road, London, SW11 6DS |
| JONES, Leslie RESIGNED | Director | | 04 Apr 1995 | | April 1937 | Ridgmount, Lawbrook Lane, Peaslake, Surrey, GU5 9QW |
| KROHG, Olaf N., Mr. RESIGNED | Director | 30 Oct 2020 | 24 Feb 2021 | United States | January 1962 | Suite 1, 3rd Floor, 11-12 St. James's Square, London, SW1Y 4LB, United Kingdom |
| LER, Siah Neo, Catherina RESIGNED | Director | 03 Jul 2014 | 01 Nov 2017 | Singapore | January 1972 | Sembcorp Uk Headquarters, Wilton International, Middlesbrough, TS90 8WS, England |
| MAGOR, David Lawrence RESIGNED | Director | 05 Nov 1998 | 01 Feb 2007 | | December 1954 | Trevaylor,96 East Lane, West Horsley, Leatherhead, Surrey, KT24 6LQ |
| PYATT, Patricia Ann RESIGNED | Director | | 01 Mar 1994 | | August 1942 | Casa Bonita, Leys Road, Harvington, Evesham, Worcestershire, WR11 8LZ |
| RICHARDS, Anthony Michael RESIGNED | Director | | 29 Jan 1993 | | September 1947 | Nilgiris, Apostles Oak, Abberley, Worcester, WR6 6AD |
| RICHER, Stephane Marcel Jean RESIGNED | Director | 01 Feb 2007 | 30 Nov 2011 | France | June 1958 | 7 Rue Colbert, Versailles, 7800, France |
| ROBINSON, Peter Lee RESIGNED | Director | 04 Apr 1995 | 25 Apr 1995 | | August 1937 | The Knoll Deepdene Park Road, Dorking, Surrey, RH5 4AW |
| SMITH, Peter Leslie RESIGNED | Director | 15 Nov 2000 | 14 May 2002 | | February 1945 | 9 Clearwater Place, Long Ditton, Surrey, KT6 4ET |
| SWEETSUR, Grahame RESIGNED | Director | 13 Jan 2003 | 31 May 2006 | | December 1943 | 6 Squirrels Green, Bookham, Leatherhead, Surrey, KT23 3LE |
| SWEETSUR, Grahame RESIGNED | Director | 19 Jul 1995 | 20 Nov 2000 | | December 1943 | 6 Squirrels Green, Bookham, Leatherhead, Surrey, KT23 3LE |
| TAYLOR, Trevor John RESIGNED | Director | 14 Dec 1994 | 27 Apr 1995 | England | February 1947 | Gingerburys, Cox Green, Rudgwick, West Sussex, RH12 3DD |
| THURSTON, Mark Stuart RESIGNED | Director | 14 Sep 2009 | 05 Oct 2010 | England | February 1964 | The Garth, High Lane, Haslemere, GU27 1BD |
| TURRELL, Robin Peter James, Professor RESIGNED | Director | | 28 Feb 1994 | | October 1945 | Orchard House, Burway, Ludlow, Shropshire, SY8 2BN |
| WHITE, David Frederick Wigram RESIGNED | Director | 13 Apr 2006 | 01 Feb 2007 | England | July 1942 | 3 Mount Close, Fetcham, Leatherhead, Surrey, KT22 9EF |
| WHITE, David Frederick Wigram RESIGNED | Director | 25 Apr 1995 | 19 Jul 1995 | England | July 1942 | 3 Mount Close, Fetcham, Leatherhead, Surrey, KT22 9EF |
| WINFIELD, Brian Alastair, Dr RESIGNED | Director | 19 Jul 1995 | 15 Nov 2000 | England | March 1951 | Winterbourne Woodland Avenue, Cranleigh, Surrey, GU6 7HZ |