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Production / Operations Routine +

enCore Energy Announces the Successful Completion of Construction at the Upper Spring Creek ISR Uranium Project

enCore Energy advances Upper Spring Creek ISR construction, targeting a late 2026 production ramp-up for its uranium project.

By The Northwire Desk — AI Analysis Jun 04, 2026 · 07:10 EU · 2.21 enCore Energy Corp.
Executive Summary
  • enCore Energy Corp. announced the successful completion of the first phase of construction for the Upper Spring Creek ISR Satellite Ion-Exchange (IX) Plant.
  • The facility currently processes 1,600 gallons per minute (gpm), representing 50% of its planned capacity.
  • Capacity is scheduled to expand to 75% by late June 2026 and reach 100% (3,200 gpm total) by the end of July 2026.
  • Wellfield drilling for the first 800-gpm module is complete, with infrastructure nearly finished. Three additional 800-gpm modules are under construction, with Module 2 drilling ~90% complete.
  • The satellite facility will feed uranium-loaded resin to enCore's fully licensed Rosita Central Processing Plant (CPP).
  • Uranium extraction is planned to begin in late 2026, contingent on receiving final Texas Commission on Environmental Quality (TCEQ) permits.
  • The project is 100% company-owned in the historic Clay West uranium district in South Texas, with mineralized sands at 300–450 feet depth.
Material Impact
  • The news represents a standard, expected construction milestone that aligns with previous operational guidance.
  • It confirms execution progress on the Upper Spring Creek satellite facility but does not introduce new financial metrics, unexpected permit approvals, or accelerated production timelines.
  • The reliance on final TCEQ permits for extraction commencement remains a key dependency, meaning the market-moving catalyst is still pending.
  • Classified as Routine - Positive due to its incremental nature and alignment with previously communicated project schedules.
EU · Price
Company Overview
  • enCore Energy Corp. is a U.S.-focused uranium producer utilizing exclusively In-Situ Recovery (ISR) technology.
  • Flagship assets include the Alta Mesa ISR project in South Texas (operating under a 70/30 JV with Boss Energy Ltd.) and the fully licensed Rosita CPP.
  • The company is advancing the Upper Spring Creek ISR project to feed resin to Rosita, and holds advanced-stage permits for the Dewey Burdock project in South Dakota.
  • The ISR methodology avoids traditional open-pit or underground mining, utilizing chemical-free water-based solutions to dissolve and pump uranium to surface processing plants.
Read the original news release →

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