| Head of State | HM Queen Elizabeth II | Queen of the United Kingdom of Great Britain and Northern Ireland | Your Majesty |
| Head of Government | The Rt Hon Boris Johnson MP | Prime Minister, First Lord of the Treasury and Minister for the Civil Service | Dear Prime Minister |
| Foreign Minister | The Rt Hon Elizabeth (Liz) Truss MP | Secretary of State for Foreign, Commonwealth and Development Affairs, and Minister for Women and Equalities | Dear Secretary of State |
| Trade Minister | The Rt Hon Anne-Marie Trevelyan MP | Secretary of State for International Trade and President of the Board of Trade | Dear Secretary of State |
| Non-Cabinet Minister | The Rt Hon Lord Zac Goldsmith | Minister of State (Minister for Pacific and the Environment) | Dear Minister |