United States rare earth production totals approximately 45,000 tonnes of rare earth oxide (REO) equivalent per year, making the US the world’s second-largest producer by mine output — yet the country relies on China for an estimated 70–80% of its rare earth processing capacity, according to USGS 2024 data. That structural gap between extraction and processing defines the central challenge of US rare earth strategy in 2026.
United States Rare Earth Production: Mountain Pass and the Processing Gap
MP Materials (NYSE: MP) operates Mountain Pass in San Bernardino County, California — the only active large-scale rare earth mine in the Western Hemisphere. The operation produces concentrate that has historically been shipped to China for separation, though MP Materials is now investing in domestic processing. A separation circuit at Mountain Pass and a magnet manufacturing facility in Fort Worth, Texas are progressing through commissioning as of early 2026, with Department of Defense grant support underpinning the capital programme.
Energy Fuels (NYSE American: UUUU) operates the White Mesa Mill in Utah — currently the only US facility producing separated rare earth material at commercial scale, focused on neodymium-praseodymium (NdPr) carbonate. White Mesa processes feedstock sourced internationally rather than from domestic mine output, positioning it as a processing node rather than a vertically integrated producer.
The absence of commercial-scale separation capacity beyond these two operations is the defining vulnerability of the United States rare earth supply chain. Separated oxides, the feedstock for magnet alloys, are still sourced overwhelmingly from China — a dependency that policy intervention has accelerated but not yet resolved.
Policy Framework Driving United States Rare Earth Investment
Federal intervention has intensified since 2022. The Inflation Reduction Act established domestic content requirements for EV battery supply chains, creating commercial incentives for US rare earth processing investment. The CHIPS and Science Act directed funding toward semiconductor-adjacent critical minerals. Executive orders issued in 2025 formally designated rare earths a national security priority, unlocking additional Department of Defense procurement and grant authority.
The April 2026 tariff escalation between the US and China has sharpened procurement urgency further. Defence primes and EV manufacturers sourcing neodymium and dysprosium for permanent magnets are actively stress-testing supply chain alternatives as Chinese export controls and trade tensions compound. The policy environment now rewards demonstrated domestic processing capacity — not just resource ownership.
Lynas Rare Earths (ASX: LYC) is developing a heavy rare earth processing facility in West Texas under a DoD-funded programme. If commissioned, the facility would be the first US-based separation plant capable of producing terbium and dysprosium oxide at meaningful scale — elements critical to NdFeB permanent magnets used in defence systems and electric motors.
Key United States Rare Earth Projects to Watch
Beyond Mountain Pass and White Mesa, a pipeline of projects is at varying stages of development. USA Rare Earth is advancing the Round Top Mountain project in West Texas — a heavy rare earth and technology metals deposit with a distinct mineralogy from the light-REE-dominant Mountain Pass. In April 2026, USA Rare Earth completed the acquisition of Serra Verde in Brazil for $2.8bn, adding a producing ionic clay deposit to its asset base and accelerating its path to NdPr output.
The Department of Defense has funded feasibility and processing studies across multiple projects, using Title III of the Defense Production Act to de-risk early-stage capital. This mechanism has become the primary financing lever for pre-revenue US rare earth developers lacking access to conventional project finance.
For a broader view of where US projects rank globally, see the Top 10 rare earth mining projects and the Top 10 rare earth mining companies by output.
United States Rare Earth Outlook
The trajectory for United States rare earth production is upward — but the bottleneck is not ore in the ground. It is the separation, alloy, and magnet manufacturing capacity that converts mine output into defence-grade and EV-grade material. MP Materials and Lynas are the two operations closest to closing that gap, with commissioning timelines extending into 2026 and 2027 respectively.
China’s export control framework — restricting gallium, germanium, and certain magnet-grade rare earth compounds — has added time pressure to domestic build-out. The US rare earth supply chain will not be self-sufficient within this decade on current investment trajectories, but the combination of policy incentives, DoD grant funding, and tariff-driven procurement urgency has materially changed the investment calculus for project developers and their offtake counterparties.
Analysts at Argus Media have noted that the near-term constraint is magnet-grade NdPr separation outside China, not mining tonnage. That framing accurately describes the US position: resource-long, processing-short, and under pressure to close the gap faster than current project pipelines allow.
How much rare earth does the United States produce?
The United States produces approximately 45,000 tonnes of rare earth oxide (REO) equivalent per year, primarily from the Mountain Pass mine in California operated by MP Materials (NYSE: MP). This makes the US the world’s second-largest producer by mine output after China.
Where is rare earth mining in the United States located?
Mountain Pass in San Bernardino County, California, is the only active large-scale rare earth mine in the US. The White Mesa Mill in Utah (Energy Fuels) processes rare earth carbonate from imported feedstock. Several development-stage projects are located in Texas, Idaho, and Nebraska.
Why does the United States import rare earths if it has its own mine?
Mining ore is only the first step. The US has limited domestic capacity to separate, refine, and process rare earth concentrate into the oxide and alloy forms required by defence and EV manufacturers. Most US rare earth concentrate has historically been processed in China, though domestic separation capacity is now being developed.
What is the US government doing to support rare earth production?
The Department of Defense has awarded grants to MP Materials and Energy Fuels under Title III of the Defense Production Act. The Inflation Reduction Act and CHIPS and Science Act created domestic content incentives. Executive orders in 2025 formally designated rare earths a national security priority, expanding federal procurement and financing tools.
Which companies are leading United States rare earth development?
MP Materials (NYSE: MP) operates Mountain Pass and is building domestic separation and magnet manufacturing. Energy Fuels (NYSE American: UUUU) produces separated NdPr at White Mesa Mill. Lynas Rare Earths (ASX: LYC) is developing a heavy rare earth processing facility in West Texas with DoD support. USA Rare Earth is advancing the Round Top Mountain project in Texas.
