# Urenco USA's fifth enrichment cascade comes online in New Mexico, expanding domestic US uranium capacity > The New Mexico centrifuge plant cleared a milestone on June 30 as its fifth separative-work-unit cascade began operating, a tangible step in the US push to wean its nuclear sector off Russian-linked supply chains after the Iran war **Meta:** type: event · date: 2026-06-30 · heads: The Long Game, Whose Money · 6 takes · 2 lenses · 3 regions ## Summary Urenco USA's fifth uranium enrichment centrifuge cascade at the National Enrichment Facility in Eunice, New Mexico came online on June 30, adding roughly 200,000 separative work units per year and bringing the plant's total annual capacity to approximately 1 million SWU. The expansion is the most concrete US response to the Russian Uranium Import Prohibition Act and the simultaneous nuclear-energy demand surge triggered by the Iran war's disruption of fossil fuel supply chains. [Urenco](/en/entity/urenco), jointly owned by the British, Dutch and German governments, supplies around 30% of US commercial nuclear fuel through its New Mexico plant. The fifth cascade extends the facility's contract book to cover domestic utility demand through 2032 and reduces the share of US fuel that passes through Russian-linked enrichment at Tenex and TVEL. ## The split Washington frames the expansion as a critical-supply-chain success: a European-owned but US-based facility delivering on exactly the kind of allied reshoring the Iran war exposed as necessary. US domestic uranium advocates, including the Nuclear Energy Institute, argue that the 1 million SWU threshold, while significant, still falls well short of what is needed to fully replace Russian-linked enrichment as the US fleet of reactors expands. European shareholders in Urenco see the New Mexico investment as commercially sound given the long-term US utility contracts, though the German government remains politically conflicted about new nuclear investment following its 2023 phase-out. ## By the numbers - 200,000 SWU/year, additional separative work capacity from the fifth cascade - ~1 million SWU/year, total plant capacity after commissioning - 30%, approximate share of US commercial nuclear fuel supplied by Urenco USA - 2032, year through which the new contract book covers US utility demand ## Why it matters US domestic enrichment capacity had been near zero since the Paducah gaseous diffusion plant closed in 2013, leaving the entire fuel cycle dependent on Urenco and Russian-linked suppliers. The Iran war-driven nuclear energy revival, with five new US plants breaking ground in 2026, means enrichment is now a hard strategic bottleneck. Urenco's fifth cascade is the largest single-step capacity addition in the Western enrichment market in over a decade, and it directly reduces the leverage that [Enriched Uranium](/en/entity/enriched-uranium) supply constraints otherwise give to adversary states. ## What to watch - Whether a sixth cascade is approved: the NRC permit covers up to twelve cascades at Eunice - Centrus's American Centrifuge Plant in Ohio: the only non-European alternative US enrichment path, currently at demonstration scale - Russian enrichment market share: Tenex's US contracts roll off in 2027-2028; this is the replacement - Uranium spot price response: higher enrichment capacity can marginally soften uranium ore demand ## Regional takes (batched by bias / lens) ### specialist nuclear industry publication; first to report the cascade commissioning, with technical detail on separative work capacity and how the fifth cascade fits the overall plant expansion plan approved by the Nuclear Regulatory Commission in 2024 - **World Nuclear News** (United Kingdom, en) — Reports that the fifth cascade at the National Enrichment Facility in Eunice, New Mexico adds approximately 200,000 separative work units (SWU) per year to US domestic capacity, bringing the plant's total to around 1 million SWU annually. Urenco USA's parent supplies roughly 30% of US commercial nuclear fuel; the expansion directly responds to the Russian Uranium Import Prohibition Act and the post-Iran nuclear energy demand surge. > "The fifth cascade brings Urenco USA's New Mexico plant to approximately 1 million SWU annual capacity, a level not seen in the US since the USEC Paducah gaseous diffusion plant closed in 2013." Source: https://www.world-nuclear-news.org/Articles/Urenco-USA-fifth-cascade-online-New-Mexico-2026 ### unlabelled - **Urenco Press Release** (United Kingdom, en) — Official Urenco statement confirming the fifth cascade commissioning at Eunice, New Mexico, stating that the expansion is on schedule and within budget, and that the facility is operating under a Long-Term Power Agreement with the New Mexico grid. The statement notes that the expansion increases Urenco USA's contract book to cover US utility demand through 2032. Source: https://www.urenco.com/news/2026/06/urenco-usa-fifth-cascade-national-enrichment-facility - **Reuters** (Global, en) — Source: https://www.reuters.com/business/energy/urenco-usa-fifth-cascade-new-mexico-2026-06-30/ - **Bloomberg** (Global, en) — Source: https://www.bloomberg.com/news/articles/2026-06-30/urenco-usa-fifth-cascade-enrichment-new-mexico - **Nuclear Engineering International** (United Kingdom, en) — Source: https://www.neimagazine.com/news/urenco-usa-cascade-5-online-2026/ - **S&P Global Commodity Insights** (United States, en) — Source: https://www.spglobal.com/commodityinsights/en/market-insights/latest-news/natural-gas/2026-06-30-urenco-usa-enrichment-cascade ## Across the graph - Related: [[albemarle-kings-mountain-2026]], [[antimony-tungsten-controls-2026]], [[us-enrichment-deRussification-2026]] - Entities: Urenco, United States, Nuclear Energy, Enriched Uranium --- Canonical: https://rbtfl.xyz/en/n/urenco-cascade5-jun30