Largest uranium reserve discovered in the U.S. in a decade begins production with 2,791,175.76 kg.

Written by Fabio Lucas Carvalho

Published on 11/04/2026 at 17:49

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Project in Wyoming Uses In Situ Recovery Method to Strengthen Domestic Nuclear Fuel Production and Ensure Energy Security

The uranium extraction operation at the Encampment mine, located in the state of Wyoming, has officially begun production, marking the exploration of the largest reserve of this mineral discovered in the United States in a decade.

The project is led by EnCore Energy Corp and utilizes the In Situ Recovery (ISR) method, aiming to strengthen the domestic supply chain for nuclear energy. The estimated reserve at the site is approximately 2,791,175.76 kg of uranium.

The In Situ Recovery Method

The technique adopted at the Encampment mine is In Situ Recovery, considered a more sustainable alternative to conventional open-pit or underground mining.

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Impact on National Energy Security

The activation of this reserve of 6 million pounds of uranium comes at a time of transition in the energy policy of the United States, which seeks to reduce dependence on foreign imports. Currently, the country imports most of the uranium needed to fuel its commercial nuclear reactors, with Russia being one of the main suppliers.

Production in Wyoming is seen as a crucial step towards ensuring self-sufficiency and stability of the North American electrical infrastructure.

The Encampment project is part of a larger strategy by EnCore Energy to reactivate domestic nuclear fuel production on multiple fronts. With the growing demand for energy sources that do not emit carbon, the recovered uranium will be directed to support the existing fleet of nuclear power plants and future modular reactors. The initiative aims to ensure that the energy transition is supported by resources extracted safely and controlled within national territory.

Production Goals and Technological Expansion

The goal set for the new operation is to reach full production capacity as quickly as possible, leveraging the infrastructure already installed in the Wyoming uranium mining district. The company plans to use the Encampment mine as a model for future developments in other uranium properties in the United States.

The efficiency of the ISR process is essential to keep costs competitive in relation to the global commodities market.

In addition to extraction, the final processing transforms the recovered uranium into “yellowcake,” a concentrated uranium powder that serves as raw material for the manufacture of nuclear fuel. The continuity of this production is essential to maintain price stability and continuous supply for the public utilities sector.

The success of this venture in Wyoming signals a new era for the North American mining industry, focused on low-impact and high-efficiency technologies.

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Largest uranium reserve discovered in the U.S. in a decade begins production with 2,791,175.76 kg.

Project in Wyoming Uses In Situ Recovery Method to Strengthen Domestic Nuclear Fuel Production and Ensure Energy Security

The In Situ Recovery Method

Impact on National Energy Security

Production Goals and Technological Expansion

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Largest uranium reserve discovered in the U.S. in a decade begins production with 2,791,175.76 kg.

Project in Wyoming Uses In Situ Recovery Method to Strengthen Domestic Nuclear Fuel Production and Ensure Energy Security

The In Situ Recovery Method

Impact on National Energy Security

Production Goals and Technological Expansion

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