| VISTRA COMPANY SECRETARIES LIMITED ACTIVE | Secretary | 14 Mar 2008 | | | | First Floor, Templeback, 10 Temple Back, Bristol, BS1 6FL |
| QUINT, Constance Jo ACTIVE | Director | 18 Oct 2022 | | United States | April 1961 | Macmerry Industrial Estate, Tranent, East Lothian, EH33 1HD, United Kingdom |
| WEBER, Douglas Adam ACTIVE | Director | 01 Jan 1992 | | | October 1963 | 1107 East Olive Street, Illinois, 60004, United States |
| WEBER, Joseph Bradley ACTIVE | Director | 18 Oct 2022 | | United States | December 1959 | Macmerry Industrial Estate, Tranent, East Lothian, EH33 1HD, United Kingdom |
| CARGILL, William Maxwell RESIGNED | Secretary | 03 Nov 1995 | 31 Jan 2003 | | | 15 Boyd Orr Drive, Penicuik, Midlothian, EH26 0JZ |
| HOMER, Neville Rex RESIGNED | Secretary | 01 Feb 2003 | 07 Mar 2008 | | | 12 Forth Street, North Berwick, East Lothian, EH39 4HY |
| HORSBURGH, Norman RESIGNED | Secretary | | 03 Nov 1995 | | | 10 Park View, Musselburgh, Midlothian, EH21 7HT |
| DARRAS, William J RESIGNED | Director | | 31 Dec 1991 | | January 1926 | 2003 East Avon Lane, Arlington Heights, Illinois 60004, FOREIGN, Usa |
| GILLY, Glenn Charles RESIGNED | Director | 01 Oct 2007 | 03 Sep 2014 | | May 1954 | 2121 Northwind Circle, Schaumburg, Cook, 60194 |
| HORSBURGH, Norman RESIGNED | Director | | 03 Nov 1995 | | January 1939 | 10 Park View, Musselburgh, Midlothian, EH21 7HT |
| KNOX, William RESIGNED | Director | 10 Jun 1997 | 07 Mar 2008 | | February 1954 | 6 Preston Road, Prestonpans, East Lothian, EH32 9HN |
| MCGRATH, Dennis Patrick RESIGNED | Director | 01 Jan 2006 | 30 Sep 2007 | | January 1948 | 1317 South Pine, Arlington Heights, Cook/Illinois 60005, Usa |
| MORRIS, Scott RESIGNED | Director | 12 Jan 2015 | 24 Mar 2016 | Usa | May 1964 | 21, St Thomas Street, Bristol, BS1 6JS |
| PAUL, Leon M RESIGNED | Director | | 27 Jun 1994 | | June 1919 | 5885 - 51st Street South, St Petersburgh 33715, Florida, FOREIGN, Usa |
| WEBER, Joseph Bradley RESIGNED | Director | 27 Jun 1994 | 07 Dec 2005 | | December 1959 | 1066 South Hidden Brook Terrace, Palantine, Illinois, 60067, Usa |
| WEBER, Joseph Adam RESIGNED | Director | | 18 Oct 2022 | | August 1932 | 809 South Burton Place, Arlington Heights, Illinois, 60005, United States |
| WEBER, Joseph Andrew RESIGNED | Director | | 01 Feb 1992 | | December 1905 | 1111 Coral Way, Riviera Beach, Florida 33404, FOREIGN, Usa |