Key Takeaways
- Urenco USA is expanding America’s sole commercial uranium enrichment facility by approximately 50%
- The multibillion-dollar expansion will add 2.1M SWU of enrichment capacity at the New Mexico facility by 2032
- Nuclear sector stocks rallied sharply, with Ur-Energy climbing 22.8% and Uranium Energy gaining 13.6%
- Russian uranium import restrictions, enacted in 2024, will be fully enforced by 2028
- Federal regulators approved Three Mile Island’s restart plan, with operations expected by 2027 for Microsoft data centers
Nuclear energy stocks experienced significant gains Tuesday following Urenco USA’s announcement of a substantial expansion to the nation’s sole operating commercial uranium enrichment plant.
The expansion will increase annual enrichment capacity by 2.1 million separative work units at the Eunice, New Mexico facility. This enhancement will raise overall capacity from its current 4.3 million SWU to 6.4 million SWU.
Urenco operates as a joint venture between British, Dutch, and German stakeholders. The facility employs advanced gas-centrifuge technology to manufacture low-enriched uranium at concentrations up to 5%, the standard fuel for contemporary nuclear power plants.
Initial centrifuge cascades from the expansion are scheduled to begin operations in 2032, with additional equipment installations continuing through 2036.
The multibillion-dollar initiative is supported by long-term supply agreements with domestic nuclear utilities, Urenco confirmed.
Market Response to Expansion Announcement
Investors responded enthusiastically to the development. Ur-Energy recorded the strongest performance, surging 22.8%. Uranium Energy advanced 13.6%, while Energy Fuels posted a 10.9% gain, and Oklo increased 9.8%.
NexGen Energy shares climbed 9.1%, NuScale Power advanced 8.2%, and Cameco gained 7%. Denison Mines similarly rose 7%. Centrus Energy increased 5.3%, Lightbridge advanced 5%, and Nano Nuclear Energy gained 2.9%.
The widespread sector rally demonstrates investor sensitivity to uranium supply developments.
Russian Import Restrictions Drive Domestic Demand
The expansion announcement carries particular significance given current supply dynamics. Russia historically provided approximately 25% of U.S. uranium requirements. Federal legislation prohibited Russian enriched uranium imports in 2024.
Temporary exemptions remain available through 2028, after which restrictions become absolute. This approaching deadline is accelerating the shift toward domestically-sourced uranium.
Urenco’s capacity expansion directly addresses this supply challenge. The New Mexico operation represents the country’s only active commercial-scale enrichment facility.
Federal Approval Clears Path for Three Mile Island Restart
Tuesday also delivered positive regulatory news for the nuclear sector. Federal energy authorities granted Constellation Energy approval to transfer grid connection rights, removing a critical obstacle to restarting Three Mile Island.
Constellation aims to resume operations by 2027. The facility will provide electricity to Microsoft data centers upon reactivation.
Additionally, federal authorities approved transferring weapons-grade plutonium stockpiles to five emerging nuclear energy companies last week, including Oklo. These companies indicate the material can rapidly fuel next-generation reactors as commercial deployment accelerates.
GE Vernova shares also rose Tuesday, participating in the broader nuclear sector momentum.
The convergence of Urenco’s expansion announcement, Three Mile Island restart authorization, and continuing pressure to establish domestic uranium supply independent of Russian sources collectively drove the sector’s strong performance.
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