US and UK near tech, nuclear and whisky deals ahead of Donald Trump’s trip Part 112 Sep 2025 23:17
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The US and UK are rushing to finalise deals on nuclear reactors, artificial intelligence data centres and whisky ahead of a state visit to London by Donald Trump overshadowed by the firing of British ambassador Lord Peter Mandelson.
California-based OpenAI is set to announce a UK arm to its $500bn Stargate data centre project, as part of a series of tech partnerships and trade agreements to coincide with the US president’s visit next week.
The UK-US tech partnership was described by Mandelson, sacked this week as ambassador to Washington over his ties to Jeffrey Epstein, as his “personal pride and joy”. Prime Minister Sir Keir Starmer’s decision to fire Mandelson risks angering Trump, who has been trying to dismiss his own connections to the late paedophile.
Starmer has been rocked by the fallout of the affair, with Labour MPs questioning his future as party leader. The prime minister’s allies said the state visit was a vital moment as he tries to regain the initiative.
For his part, Starmer hopes to present the US president’s three-day visit as an advertisement for Britain and a sign that his growth strategy is bearing fruit, as well as cementing a partnership to challenge China’s lead in critical technologies.
Energy co-operation, security and steel tariffs will also be on the agenda, but the economic centrepiece will be technology. OpenAI’s Sam Altman and chipmaker Nvidia’s Jensen Huang will join Trump in the US delegation.
They will launch the Stargate UK investment in the town of Blyth, Northumberland, according to people briefed on the plans. UK AI data centre company Nscale will also be involved in the project.
“The UK provides the energy, Nvidia the chips and OpenAI the intellectual property. The UK gets sovereign AI,” said one person involved in the project.
Altman stood alongside Trump in the White House in January to announce Stargate, which he said would include electricity infrastructure as well as data centres and pave the way to the next phase of AI.
The project, whose other founding partners are SoftBank, Oracle and Abu Dhabi state fund MGX, has since become broader and more nebulous. OpenAI has already struck deals to develop data centres in the UAE and Norway with local partners.
Rene Haas, chief executive of SoftBank-owned Arm, would join the delegation of tech executives in the UK for the state visit next week, according to people familiar with the matter. The UK tech champion’s chip designs are used in Nvidia’s AI products.