Mining Intelligence and News
United States

Rosita Operation

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Categories

Summary

Mine TypeIn-Situ
StatusActive
Commodities
  • Uranium
Mining Method
  • Solution mining
Production Start... Lock
Mine Life... Lock
SnapshotThe Rosita Uranium Operation includes the previously producing Rosita In-Situ Recovery (ISR) Uranium Central Processing Plant (CPP), the Rosita Production Area 5 (Rosita Extension wellfield or PAA-5), as well as proposed satellite project areas (the South Texas Integrated Uranium Projects).

Uranium production at the Rosita CPP resumed on November 21, 2023, after being suspended since 2008, with uranium extraction operations commencing at the Rosita Extension wellfield (PAA-5).

The South Texas Integrated Uranium Projects include:
• The Upper Spring Creek – Brown Area ISR Uranium Project, scheduled for development by 2026, having received inclusion in the Radioactive Materials License (RML).
• The Upper Spring Creek – Brevard Area ISR Uranium Project, scheduled for development from basal Oakville Formation sands in late 2026, dependent upon permitting.
• The Rosita South Cadena ISR Project
• The Butler Ranch Uranium ISR Project.
Related AssetSouth Texas Integrated Project

Owners

SourceSource
CompanyInterestOwnership
enCore Energy Corp. 100 % Indirect
Rosita In-Situ Recovery Uranium Central Processing Plant & Wellfields is 100% owned by enCore Energy Corp.

Contractors

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Deposit type

  • Sandstone hosted

Summary:

Uranium mineralization at the Rosita project occurs as roll-front-type deposits hosted in porous and permeable sandstones of the Goliad Formation (of Pliocene age), at depths ranging from 125 to 350 feet below the surface. The sandstones of the Goliad Formation occur in a deltaic to marginal marine environment of the Texas Gulf Coastal Plain which dip gently easterly into the Gulf of Mexico. Rosita’s classic C-shaped roll-front deposits comprise highly sinuous mineralized zones occurring at the interface of oxidized and reduced sediments located in the easterly part of the Rosita Property shown on the map below.

Additional potential for roll-front mineralization exists between 500 and 700 feet in the Oakville Formation and is the subject of current exploration efforts.

Mining Methods

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Heavy Mobile Equipment

Fleet data has not been reported.

Comminution

Crushers and Mills

Milling equipment has not been reported.

Processing

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Commodity Production

Uranium production at the Rosita CPP resumed on November 21, 2023, after being suspended since 2008.

Production numbers for 2024 are reported for the period from the beginning of extraction activities in January 1, 2024 to December 31, 2024.
CommodityUnits2024
Uranium lbs  ....  Subscribe
All production numbers are expressed as U3O8.

Operational metrics

Metrics20242023
Annual production capacity  ....  Subscribe  ....  Subscribe

Production Costs

Commodity production costs have not been reported.

Personnel

Mine Management

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Jul 3, 2025
....................... Subscription required ....................... Subscription required Subscription required Jul 31, 2025
....................... Subscription required ....................... Subscription required Subscription required Jul 3, 2025
....................... Subscription required ....................... Subscription required Subscription required Jun 30, 2025

Workforce

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