Donald Trump is pressing ahead with a new 10% import tariff on UK goods, the US trade representative has said.
Ambassador Jamieson Greer is imposing charges on Britain and 59 other countries over claims they have not done enough to enforce bans on items produced by forced labour.
However, under the rules the UK could be eligible for exemptions on products where it would encourage compliance in meeting this commitment.
The fresh tariffs came just hours before temporary 10% levies expired.
There were introduced after the Supreme Court overturned Trump’s previous import tax regime in February.
He is now seeking a more durable system using a 1974 trade law.
The US administration says the levies are being slapped on 60 economies “for their failure to impose and effectively enforce a prohibition on the importation of goods produced with forced labour”.
It added that the action followed investigations by the Office of the United States Trade Representative (USTR), which included public hearings, more than 2,100 public comments, and engagement with trading partners “to remedy these longstanding concerns”.
Mr Greer said: “President Trump recognises that decades of moral suasion have not eradicated forced labour from global supply chains.
“The United States has had a forced labour import ban for nearly a century, and rigorously enforces it. It’s well past time for our trading partners to do the same.
“Today’s action will begin to correct what is both a human rights abuse and distortive trade practice to improve the welfare of workers everywhere.
“I am encouraged by the trading partners who have moved quickly to adopt forced labour import prohibitions, and look forward to ensuring their effective enforcement.”
However, the USTR also said there would be product exemptions, where tariffs would lead to a shortage of raw materials domestically, cause economy-wide disruptions or where items cannot be grown or produced in sufficient quantity or at a reasonable price in the US.
There would also be an exemption for products from the UK and other named countries where “that would encourage these economies to fulfil commitments regarding forced labour import prohibitions or to enact and effectively enforce a forced labour import prohibition”.
Tariffs are paid by companies in the US which import foreign products and usually move to pass along the cost by charging consumers higher prices.
Americans are already frustrated by the high cost of living, so the administration is taking a risk in rolling out new tariffs ahead of the critical mid-term elections in November.
The UK exports more to the US than to any other single country.
In 2024, UK exports to the US were worth £66 billion, 17% of all UK goods exports.
The Economic Prosperity Deal agreed between the two countries last year aimed to mitigate the impact of US tariffs on UK industries and deepen commercial ties.
A Government spokesperson said: “There is no change to the tariff rate facing UK businesses as a result of this announcement.
“The UK remains on a 10% tariff rate and the preferential access secured under our agreement with the United States remains in place.
“We take forced labour very seriously and ensure that in global supply chains UK businesses are not complicit in forced labour and human rights violations.
“The US has recognised the steps the UK is taking, which is why there are no additional tariffs for the UK under this announcement.”
