| RESOLIS LIMITED ACTIVE | Secretary | 01 Apr 2022 | | | | Alder Castle, 10 Noble Street, London, EC2V 7JX, United Kingdom |
| DONN, Michael Andrew ACTIVE | Director | 31 Oct 2014 | | United Kingdom | February 1972 | 40, Princes Street, Edinburgh, Midlothian, EH2 2BY, United Kingdom |
| GORDON, John Stephen ACTIVE | Director | 01 Nov 2015 | | Scotland | December 1962 | Dalmore Capital, Caledonian Exchange, 19a Canning Street, Edinburgh, EH3 8EG, United Kingdom |
| LAING, Frank David ACTIVE | Director | 01 Mar 2019 | | Scotland | July 1987 | 6, St Andrew Square, Edinburgh, EH2 2AH, United Kingdom |
| RICHARDSON, Christopher Richard, Mr. ACTIVE | Director | 01 Jul 2026 | | Scotland | December 1978 | 11, Thistle Street, Edinburgh, EH2 1DF, Scotland |
| BAND, James RESIGNED | Secretary | 09 Apr 2015 | 01 Apr 2016 | | | Robertson House, Castle Business Park, Stirling, Stirlingshire, FK9 4TZ, Scotland |
| JOHNSTONE, Peter Kenneth RESIGNED | Secretary | 05 Feb 2003 | 30 Apr 2015 | | | 9 Carlingnose View, North Queensferry, Fife, KY11 1EZ |
| INFRASTRUCTURE MANAGERS LIMITED RESIGNED | Secretary | 01 Apr 2016 | 31 Mar 2022 | | | 2nd Floor, 11 Thistle Street, Edinburgh, EH2 1DF, United Kingdom |
| PRIMA SECRETARY LIMITED RESIGNED | Secretary | 16 Jan 2003 | 05 Feb 2003 | | | St Ann's Wharf, 112 Quayside, Newcastle Upon Tyne, NE1 3DX |
| BALFOUR, Bruce RESIGNED | Director | 02 Apr 2009 | 31 Oct 2014 | Uk | December 1963 | Lloyds Banking Group, Level 6, 33 Old Broad Street, London, EC2N 1HZ |
| BREE, Rhona Macdonald RESIGNED | Director | 16 Mar 2005 | 14 Jun 2005 | | August 1974 | Flat 3/2, 64 Miller Street, Glasgow, Lanarkshire, G1 1DT |
| BURGE, Richard William Francis RESIGNED | Director | 06 Nov 2018 | 08 May 2019 | Scotland | September 1959 | 35, Melville Street, Edinburgh, EH3 7JF, United Kingdom |
| BURGE, Richard William Francis RESIGNED | Director | 09 Apr 2015 | 01 Sep 2017 | Scotland | September 1959 | 35, Melville Street, Edinburgh, EH3 7JF, United Kingdom |
| CHRISTIE, Rory William RESIGNED | Director | 08 May 2019 | 01 Jul 2021 | United Kingdom | October 1958 | 11, Thistle Street, Edinburgh, Scotland, EH2 1DF, Scotland |
| CHRISTIE, Rory William RESIGNED | Director | 01 Sep 2017 | 06 Nov 2018 | United Kingdom | October 1958 | 35, Melville Street, Edinburgh, EH3 7JF, United Kingdom |
| ELLIOT, John Christian RESIGNED | Director | 05 Feb 2003 | 29 Apr 2004 | United Kingdom | January 1952 | 1 Hope Terrace, Edinburgh, Midlothian, EH9 2AP |
| FINDLAY, Michael James RESIGNED | Director | 19 Feb 2008 | 11 Mar 2009 | Scotland | January 1970 | 2, The Maltings, Athelstaneford, North Berwick, East Lothian, EH39 5JB |
| FORDYCE, Alan Peter RESIGNED | Director | 16 Mar 2005 | 27 Sep 2013 | Scotland | August 1967 | 19 Carmunnock Road, Busby, Clarkston, G76 8SZ |
| JOHNSTONE, Peter Kenneth RESIGNED | Director | 29 Jan 2024 | 01 Jul 2026 | Scotland | September 1965 | Dalmore Capital, Caledonian Exchange, 19a Canning Street, Edinburgh, EH3 8EG, United Kingdom |
| JOHNSTONE, Peter Kenneth RESIGNED | Director | 01 Nov 2022 | 30 Jun 2023 | Scotland | September 1965 | Dalmore Capital, Caledonian Exchange, 19a Canning Street, Edinburgh, EH3 8EG, United Kingdom |
| MCDONAGH, John RESIGNED | Director | 30 Jun 2023 | 29 Jan 2024 | United Kingdom | May 1969 | 2nd Floor Caledonian Exchange, 19a Canning Street, Edinburgh, EH3 8EG, United Kingdom |
| MCDONAGH, John RESIGNED | Director | 11 Nov 2013 | 01 Nov 2015 | United Kingdom | May 1969 | 200, Aldersgate Street, London, EC1A 4HD, United Kingdom |
| MCEWAN, Alastair John Angus RESIGNED | Director | 02 Jun 2014 | 30 Apr 2015 | United Kingdom | November 1958 | 35, Melville Street, Edinburgh, City Of Edinburgh, EH3 7JF, Scotland |
| PERKS, John David George RESIGNED | Director | 30 Apr 2004 | 31 Jul 2013 | Scotland | July 1944 | 23 Braid Crescent, Edinburgh, Midlothian, EH10 6AX |
| ROBERTSON, William George RESIGNED | Director | 05 Feb 2003 | 27 Sep 2013 | Scotland | April 1945 | Dun Donnachaidh, 44 Hamilton Drive, Elgin, Morayshire, IV30 4NL |
| SMITH, Martin Timothy RESIGNED | Director | 01 Nov 2013 | 01 Mar 2019 | Scotland | January 1967 | Aberdeen Asset Management Plc, 40 Princes Street, Edinburgh, EH2 2BY, United Kingdom |
| SMITH, Martin Timothy RESIGNED | Director | 30 Apr 2004 | 16 Mar 2005 | Scotland | January 1967 | 9 Carlingnose Point, North Queensferry, KY11 1ER |
| STEVEN, Gary Martin RESIGNED | Director | 01 Jul 2021 | 28 Sep 2022 | United Kingdom | March 1977 | Caledonian Exchange, 19a Canning Street, Edinburgh, EH3 8EG, United Kingdom |
| TEMPLETON, Matthew RESIGNED | Director | 07 Aug 2023 | 29 Jan 2024 | Scotland | March 1973 | Dalmore Capital Limited, Caledonian Exchange, 19a Canning Street, Edinburgh, EH3 8EG, United Kingdom |
| WONG, Ivan Hong Yee RESIGNED | Director | 12 Mar 2007 | 19 Feb 2008 | Scotland | November 1979 | 20/3 Hopetoun Crescent, Edinburgh, Midlothian, EH7 4AY |
| PRIMA DIRECTOR LIMITED RESIGNED | Director | 16 Jan 2003 | 05 Feb 2003 | | | St Anns Wharf, 112 Quayside, Newcastle Upon Tyne, Tyne & Wear, NE1 3DX |