Upper Spring Creek Uranium Project in Texas Completes Construction, Operations to Start Late 2026

Why It Matters

The project adds critical domestic uranium supply, bolstering U.S. nuclear energy security and supporting decarbonization targets, while showcasing ISR’s low‑cost, low‑impact extraction model that could attract further investment.

Key Takeaways

• Phase‑one construction of Upper Spring Creek ISR plant completed
• Initial IX plant processes 1,600 gpm, 50% of design capacity
• Full 3,200 gpm capacity expected by July 2026
• Production start targeted for late 2026 after permits
• enCore holds $96 million liquidity and $18.1 million new capital

Pulse Analysis

The United States is intensifying efforts to secure a home‑grown uranium supply as nuclear power re‑emerges as a cornerstone of clean‑energy strategies. enCore Energy’s Upper Spring Creek ISR project exemplifies this push, leveraging in‑situ recovery—a technique that circulates a leaching solution through underground sandstone to dissolve uranium without traditional open‑pit mining. By completing phase‑one, enCore not only demonstrates technical proficiency but also positions itself to meet rising demand from utilities seeking stable, low‑carbon fuel sources amid geopolitical uncertainties.

Technically, the satellite Remote Ion‑Exchange (IX) plant at Upper Spring Creek is designed for modular scalability. The initial 1,600 gpm capacity, already operational, will double to 3,200 gpm by mid‑2026, allowing the facility to feed resin‑loaded uranium to the Rosita Central Processing Plant for yellowcake production. This modular approach reduces upfront capital outlay and limits surface disturbance, aligning with stricter environmental expectations. The project's location in the historic Clay West district taps a well‑characterized Oakville Formation, further de‑risking extraction and enhancing overall project economics.

From a market perspective, enCore’s progress signals confidence in the domestic uranium value chain. With $96 million in cash and an additional $18.1 million raised through warrant exercises, the company can fund ongoing expansions across its South Texas portfolio and other ISR sites in the U.S. Successful commissioning of Upper Spring Creek will add a reliable feedstock source for Rosita, strengthening supply continuity for U.S. reactors and potentially influencing policy discussions around strategic mineral independence. The project’s timeline—full capacity by July 2026 and production by year‑end—offers investors a clear horizon for revenue generation as nuclear capacity expands to meet climate goals.