Heavy rare earths move up the US supply chain agenda
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Rare earth supply chains rarely attract the attention given to semiconductors, batteries or artificial intelligence infrastructure. Yet a small group of minerals buried several stages upstream from the finished product can determine whether manufacturers can build electric motors, robotics systems, defense equipment and other advanced technologies at scale.
That vulnerability is bringing new investment into parts of the supply chain the US largely ceded overseas during previous decades.
Energy Fuels began construction in July on a commercial-scale heavy rare earth expansion at its White Mesa Mill in Utah. The project is designed to add production capacity for dysprosium, terbium and several other rare earth oxides used across permanent magnets and advanced industrial applications. The company estimates capital spending of about $104 million.
The plant will not make the US independent of foreign rare earth supplies. Its significance lies elsewhere. White Mesa provides a case study in how the US is trying to rebuild processing capacity at home and combine it with mineral production from allied countries.
Heavy rare earths expose a weak point deep inside manufacturing
Rare earth supply is often framed as a mining problem. Processing is just as consequential. Mining produces material that still must pass through separation and refining stages before manufacturers can use individual rare earth elements. These stages require specialized facilities, technical expertise and sufficient throughput to operate economically.
Heavy rare earths such as dysprosium and terbium occupy a particularly sensitive part of that chain. They are used in high-performance permanent magnets to improve resistance to demagnetization and support operation at elevated temperatures.
That makes them relevant to products ranging from electric motors and industrial robotics to defense equipment, energy systems and data center hardware.
Energy Fuels says its initial White Mesa expansion is designed for annual capacity of up to approximately 20 metric tons of terbium oxide and 120 metric tons of dysprosium oxide. Plans cover another 140 metric tons of samarium oxide, 20 metric tons of europium oxide and 140 metric tons of gadolinium oxide. Terbium and dysprosium circuits are scheduled for completion by the end of 2027, subject to project execution and market conditions.
Those volumes are modest next to bulk commodities such as copper or iron ore. Their industrial value comes from where they sit inside complex products and how difficult replacing their function can be.
The broader US exposure remains substantial. The US Geological Survey reported that 20 critical mineral commodities, including 14 lanthanides grouped under rare earths, had net import reliance above 50% of apparent US consumption in its 2026 Mineral Commodity Summaries.
For manufacturers, the resulting risk is not confined to whether material exists underground. A supply chain can have ample geological resources and still face a bottleneck if separation, refining or downstream manufacturing capacity is concentrated elsewhere.
White Mesa shows how supply-chain diversification may work in practice
White Mesa offers one advantage that many new critical-minerals projects lack: industrial infrastructure already exists at the site.
The mill currently has installed capacity to produce up to 1000 metric tons a year of separated neodymium-praseodymium oxide. Energy Fuels is now extending that capability into heavy rare earth separation rather than building an entirely new processing complex from scratch.
The planned expansion is sized partly around anticipated monazite concentrate from the Donald Project joint venture in Australia. Energy Fuels expects the project, subject to a final investment decision and financing, to produce roughly 8500 to 9500 metric tons of monazite concentrate annually beginning in 2028.
For an advanced manufacturing economy, independence does not necessarily mean extracting every mineral, refining every material and manufacturing every component inside one national border. A more practical objective is reducing dependence on a single dominant source by spreading production across domestic facilities and politically aligned suppliers.
The US and Australia signed a critical-minerals framework in October 2025 covering mining, separation and processing. The framework calls for public and private financing, coordinated project selection, permitting measures and mechanisms intended to support more diversified minerals markets. The two countries committed to measures aimed at providing at least $1 billion in financing for projects in each country.
White Mesa fits that structure closely: processing in Utah, potential Australian feedstock and a plan to connect refined oxides with further metal, alloy and magnet production.
Rare earth processing requires large capital commitments before long-term demand, commodity prices and competitor behavior are known. Western producers may face companies operating within supply chains developed over decades and supported by deep industrial ecosystems.
Government financing has consequently become part of the model. Energy Fuels says much of the $104 million White Mesa expansion is expected to receive support through government grants and loans, with a previously announced conditional US government loan commitment planned to cover the debt component.
US policy has moved in the same direction. Federal actions since 2025 have treated processed critical minerals as an economic and national-security issue tied directly to the manufacturing and defense industrial base.
The next challenge sits farther down the manufacturing chain
A functioning supply chain still needs facilities capable of turning oxides into metals, alloys and magnets, followed by component manufacturing and final assembly. The industrial objective is therefore larger than opening mines or separation plants.
Energy Fuels has outlined plans for a broader mine-to-magnet system. Its July announcement links White Mesa production with proposed metal, alloy and magnet capacity elsewhere in its corporate network. Several parts of that strategy depend on acquisitions, financing, project development and future market conditions, so planned capacity should not be confused with current production.
The company has plans for a later White Mesa expansion, too. A feasibility study released in January described a larger processing circuit with planned capacity exceeding 6000 metric tons a year of neodymium-praseodymium oxide, alongside terbium and dysprosium production. That project remains subject to regulatory approvals, construction and commissioning.
Announcements of new capacity can signal where supply chains are heading, but resilience depends on projects reaching commercial operation, obtaining reliable feedstock and connecting successfully with downstream buyers.
One Utah facility will not remake the global rare earth market. Nor does importing feedstock from Australia amount to complete domestic self-sufficiency.
US rare earth policy is moving beyond a narrow focus on where minerals are mined. Processing, financing, allied-country sourcing and downstream manufacturing are increasingly treated as parts of the same industrial system.
White Mesa is an early test of whether that model can translate policy ambition into commercially durable capacity. If it does, the measure of success will not be whether the US can operate without the rest of the world. It will be whether manufacturers have more than one credible place to turn when a critical supply chain comes under pressure.
Sources:
Forbes