The UK and US have an "unbreakable bond", President Donald Trump has told at a meeting with business leaders at Chequers.

The US leader described his second state visit to Britain as an "exquisite honour", adding: "The ties between our countries are priceless."

Thursday's talks at British Prime Minister Keir Starmer's country residence are designed to focus firmly on global affairs rather than domestic political problems.

After a day of pomp and ceremony in which Trump rode in a carriage with King Charles and feasted at a state banquet, Trump and Starmer will celebrate the unveiling of a $US205 billion ($A309 billion) package of US investment into Britain.

The deals, covering areas such as technology, energy and life sciences, will offer a renewal of the so-called 'special relationship

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