Reuters reports that the two sides have now finished their fifth round of talks aimed at securing a trade deal which in Britain is seen as one of the big prizes on offer after the country left the European Union in January and began negotiating its own bilateral deals.

"Following the significant progress made in talks to date, both sides are confident that we are on track for a comprehensive agreement which would provide a significant and mutual benefit to our economies," a statement from the UK trade ministry said.

Both Britain and United States have repeatedly talked up the prospects of a deal, but a 3 November US Presidential election which could see a change in administration has added uncertainty.

"We believe we are in a good position to move forward after the US election," the statement said. It said a programme for future talks had been agreed, but did not provide a date.

Britain has been forced to reject domestic criticism that a US deal would see lower food standards and the state-funded healthcare system opened up to US firms. Trade minister Liz truss last week criticised President Donald Trump's “America First” economic approach.

The statement said almost all chapters of the deal were at an advanced stage, and that a significant proportion of legal text has been agreed across multiple chapters.

The latest round was focused on discussions on market access for goods, including negotiations around product specific rules of origin, which determine whether or not a product can benefit from preferential tariffs.

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