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(Bloomberg) -- The North American uranium market is grinding to a halt as US nuclear-power companies spooked by President Donald Trump’s tariff threats slow purchases and delay new contracts.
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US utility purchases of the nuclear fuel dropped by half as the imposition of Trump’s 10% levy on Canadian energy exports approaches, according to the most recent data from pricing firm TradeTech. Reactor operators who typically rely on term contracts are standing on the sidelines to see how the tariffs play out.
Few sectors are as at-risk as US nuclear power, which relies on Canada for more than one-fourth of its uranium — more than any other source. Uncertainty about the scope and duration of levies, set to kick in on April 2, has discouraged buyers of the reactor fuel. It’s also setting the stage for additional market dislocation when nuclear operators eventually begin to exhaust inventories.
The turmoil complicates decision making for utility executives trying to balance expansion plans with conflicting signals on electricity demand for data centers.
“Utilities are waiting to see what this all means before they take action,” said Karen Radosevich, manager of nuclear fuels supply at Entergy Corp., which operates four reactors in Arkansas, Mississippi and Louisiana.
For now, investors are wary: a closely watched exchange-traded fund that includes uranium miners has tumbled 16% this year, more than twice the slide in the S&P 500 Index. The world’s No. 2 uranium producer, Cameco Corp., is down 21%. Meanwhile, uranium futures are down roughly 40% from the 2024 peak.
There’s little near-term danger of US reactors running short of fuel. Given the long-term nature of uranium supply contracts, utilities are well-supplied for this year and most of 2026, Cameco Chief Financial Officer Grant Isaac told an industry conference in Florida in February.
Still, some utilities have sought to ensure uranium access to avoid cost bumps. Entergy began accelerating deliveries of Canadian uranium weeks ago, after Trump announced a delay to the tariff’s implementation, Radosevich said.
“We’re looking at everything that we can do within our portfolio of contracts,” she added. “But we’re not really looking to sign new long-term contracts.”