Key TakeawaysUrenco USA is expanding America’s sole commercial uranium enrichment plant by approximately 50%The multi-billion dollar initiative will add 2.1M SWU capacity at the New Mexico facility, operational by 2032Nuclear sector stocks rallied Tuesday, with Ur-Energy jumping 22.8% and Uranium Energy climbing 13.6%Russian uranium imports were banned by the U.S. in 2024, with complete restrictions effective by 2028Federal regulators approved Three Mile Island’s restart, with operations planned for 2027 to supply Microsoft data centersShares of uranium and nuclear energy companies rallied sharply Tuesday following Urenco USA’s announcement to significantly expand the nation’s sole commercial-scale uranium enrichment operation by approximately 50%.The consortium plans to increase annual enrichment capacity by 2.1 million separative work units at its Eunice, New Mexico location. This expansion would elevate total output from the current 4.3 million SWU to 6.4 million SWU.Urenco, a joint venture owned by British, Dutch, and German stakeholders, employs gas-centrifuge technology to manufacture low-enriched uranium at concentrations up to 5%, the standard fuel for modern nuclear power plants.Initial centrifuge cascades from the expansion are projected to become operational in 2032. The rollout will continue with additional installations through 2036.Long-term supply agreements with domestic customers underpin the initiative. According to Urenco, the project represents a multibillion-dollar capital commitment.Market Response Shows Sector-Wide EnthusiasmInvestors reacted swiftly to the announcement. Ur-Energy topped sector gains with a 22.8% surge. Uranium Energy advanced 13.6%, while Energy Fuels posted a 10.9% gain, and Oklo climbed 9.8%.Oklo Inc., OKLONexGen Energy advanced 9.1%, NuScale Power rose 8.2%, and Cameco posted a 7% increase. Denison Mines matched that with a 7% gain. Centrus Energy added 5.3%, Lightbridge increased 5%, and Nano Nuclear Energy contributed a 2.9% rise.The widespread rally throughout the nuclear sector demonstrates how sensitive uranium equities are to supply-related developments.Russian Import Restrictions Heighten Domestic Production NeedsContext is critical for understanding this market reaction. Russia has historically provided approximately one-quarter of U.S. uranium requirements. Legislation passed in 2024 prohibited imports of Russian-enriched uranium.Temporary waivers remain available through 2028, after which the prohibition becomes absolute. This approaching deadline is accelerating the shift toward domestically sourced alternatives among utilities and market participants.Urenco’s capacity enhancement directly addresses this supply challenge. The New Mexico operation stands as the nation’s only active commercial enrichment facility.Three Mile Island Receives Federal Approval for RestartTuesday also delivered positive developments on another nuclear front. Federal energy authorities granted approval for a waiver permitting Constellation Energy to transfer grid rights, eliminating a key regulatory obstacle to restarting Three Mile Island.Constellation is working toward a 2027 restart timeline. Upon resuming operations, the facility will provide electricity to Microsoft data centers under contract.Additionally, federal authorities last week authorized the transfer of weapons-grade plutonium to five energy startups, including Oklo. These companies indicate the stockpiles will enable faster reactor deployment as the industry expands.GE Vernova shares also appreciated Tuesday, riding the momentum across nuclear energy stocks.The convergence of Urenco’s expansion announcement, Three Mile Island’s regulatory clearance, and intensifying pressure for domestic supply alternatives due to Russian import restrictions collectively fueled Tuesday’s nuclear sector rally.The post Uranium Stocks Rally as Urenco Announces Major U.S. Enrichment Expansion appeared first on Blockonomi.