US, allies harden rare earth chains as magnet race turns litigious

The rare earth space has shifted decisively from “future intent” to concrete industrial execution, with several themes now driving the market and equities.

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1. USA Rare Earth builds a trans‑Atlantic mine‑to‑magnet network
The single most consequential corporate story is USA Rare Earth’s rapid move to assemble a vertically integrated rare earths and magnet platform across the US, Europe and Brazil.

• In the US, USA Rare Earth has committed $1.2 billion to a new rare earth metals and NdFeB magnet plant in Cherokee County, South Carolina, located in Bailey Industrial Park at Blacksburg.1 The facility targets 6,400 tpa of NdFeB magnets and 5,000 tpa of strip‑cast rare earth metal and alloy capacity once commissioned around 2028, with Stillwater, Oklahoma expansions pushing total USAR magnet output toward 10,000 tpa plus an equivalent volume of metal/alloy.1

• This plant will anchor an integrated chain that already includes:
– The Round Top heavy rare earth project in Texas as a key upstream source.
– The planned acquisition of Serra Verde in Brazil, currently the country’s only producing rare earth mine and one of the few non‑Chinese assets capable of large‑scale heavy rare earth output. Serra Verde has indicated it could reach roughly half of ex‑China heavy REE production by next year.1
– The LCM metal and alloy facility in Cheshire, UK, and a planned metallization/alloy plant in Lacq, France.1

From a supply‑chain standpoint, this would create one of the first genuinely non‑Chinese, multi‑jurisdictional mine‑to‑magnet systems at industrial scale, with particular strategic value in dysprosium‑ and terbium‑rich heavy rare earths via Round Top and Serra Verde.

• In parallel, USA Rare Earth is deepening its French footprint, planning to invest over €175 million (~$204 million) to expand rare earth metal, alloy and magnet production in France.2 This builds on an earlier €40 million agreement to acquire a stake in French processor Carester, and could generate more than 300 jobs.2 USAR already operates a metal/alloy facility there and is evaluating a French magnet plant, effectively turning France into its key EU processing and manufacturing hub.2

• These moves are tightly coupled to US industrial policy. USA Rare Earth was selected by the US Department of Energy (DOE) for up to $19.3 million in pilot processing funding to support domestic supply chains1 and has a non‑binding CHIPS Program term sheet from the Commerce Department for up to $1.58 billion in support (mix of grant and loan) in return for an 8–16% equity stake.1 That structure is drawing political scrutiny over potential government leverage and links to Commerce Secretary Howard Lutnick’s family investment interests.1

Strategic implication: if financed and executed, USAR would become a central Western champion with scale similar to MP Materials on magnets rather than just oxides. The risk side is high policy exposure, legal disputes and Brazil antitrust review on Serra Verde.1

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2. Magnet technology fight: MP Materials vs USA Rare Earth
The Western race to erode Chinese magnet dominance is now contentious inside the US camp.

• MP Materials has filed a lawsuit accusing USA Rare Earth of misappropriating MP’s proprietary NdFeB magnet technology via a former employee who allegedly transferred “grain boundary diffusion” formulations to USAR, which then reportedly shared them with a third‑party technology provider.12

• USA Rare Earth denies the allegations and frames the suit as a misrepresentation of its culture and conduct, pledging to defend itself and respond “appropriately.”12

Investor angle:
• This marks an inflection point where IP control over advanced magnet processes becomes as strategically critical as ore bodies.
• The case could slow USAR’s magnet ramp‑up if injunctions or discovery processes affect deployment, or it could clarify IP boundaries across the emerging non‑Chinese ecosystem.
• It also underscores that Western competition will not be frictionless even as governments push for allied coordination.

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3. US secures heavy rare earths from Greenland, diluting African leverage
On the geopolitical front, the United States has secured 15‑year offtake access to heavy rare earths from Greenland’s Tanbreez project, one of the world’s largest untapped heavy REE deposits.3

• Florida‑based REalloys signed a long‑term offtake with Critical Metals Corp. covering 15% of Phase 1 production from Tanbreez.3 The resource is rich in dysprosium and terbium, elements critical for high‑performance permanent magnets in fighter jets, missile systems, radar and drones.3

• The deal is framed as part of US efforts to comply with a Pentagon rule taking effect in 2027 that will restrict Chinese‑origin rare earths in defense supply chains.3 Reports cited by the South China Morning Post suggest the US at one point had barely “about two months” of certain rare earths available for military use, which has sharpened urgency.3

• Strategically, this offtake reduces the relative importance of African supply routes for US defense‑grade heavy REEs, at a time when Washington is balancing opportunities in Africa with security and governance risk.3 The US signed a critical minerals agreement with the DRC in late 2025, but persistent instability in eastern Congo and security issues in Mali and elsewhere continue to cloud timelines.3

• Greenland, by contrast, offers political stability and a clear Western alignment, which investors and defense planners increasingly price as a premium attribute over pure ore grade.3

Supply‑chain implication: heavy REE security for US defense now rests on a portfolio of Round Top, planned Serra Verde, Tanbreez and a small number of African projects, plus any future recycling capacity. This diversified grid reduces single‑point failures but heightens project execution risk.

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4. Africa’s rare earth pipeline grows, but execution risk remains high
Africa remains both a critical growth frontier and a risk‑adjusted laggard for rare earths.

• Benchmark Mineral Intelligence estimated in 2024 that Africa could reach about 9% of global rare earth supply by 2029 if current projects are built as planned.3 Key near‑term contenders include:
– Lindian Resources’ Kangankunde (Malawi), aiming for first production around late 2026.3
– Pensana’s Longonjo (Angola), targeted for production from 2027.3
– Peak Rare Earths’ Ngualla (Tanzania), Mkango’s Songwe Hill (Malawi), Rainbow Rare Earths’ Phalaborwa (South Africa), and Lofdal in Namibia (a heavy REE project with JOGMEC as partner).3

• New discoveries are expanding the pipeline:
– Sovereign Metals reported high‑grade heavy REEs associated with its Kasiya graphite/rutile project in Malawi.3
– Tsodilo Resources and Mkango are confirming and expanding rare earth mineralisation in Botswana.3

• Yet the region’s potential is constrained by:
– Security issues, especially in the DRC and parts of Mali, that raise operating costs and delay infrastructure build‑out.3
– Regulatory and permitting friction, such as prolonged licensing disputes at Kenya’s Mrima Hill and permitting hurdles in Madagascar.3

Geopolitically, the US and Europe continue to court African governments with financing and technical support, but the Tanbreez deal and growing attention to politically stable jurisdictions highlight a gradual rebalancing toward “low‑risk tonnage” even if operating costs are higher.

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5. US policy push: DOE doubles down on domestic processing and recycling
Alongside project‑specific support for USA Rare Earth, the DOE is broadening its critical minerals strategy across the entire rare earth life cycle.

• DOE’s Office of Critical Minerals and Energy Innovation recently announced $134 million in projects to strengthen domestic rare earth supply chains, with a focus on recovering and refining materials from waste streams and improving processing efficiency.68 These projects are designed to cut reliance on foreign sources while bolstering US energy security.68

• Under FOA 3105, selected projects include efforts such as USA Rare Earth’s work on CIX (continuous ion‑exchange) as an environmentally benign, economical processing platform for US REE production.7 The emphasis is on metallurgical innovation and commercialization, acknowledging that the true bottleneck is often in separation and metal production rather than mining alone.47

• DOE’s broader critical minerals strategy rests on four pillars: diversifying supply, developing substitutes, improving materials efficiency, and investing in recycling and reuse.9 For rare earths specifically, this includes analysis and advanced tools, market development, international standards work and workforce training.9

From an industry‑structure standpoint, this push accelerates a shift from a mine‑centric narrative to a network of processing and magnet plants, where long‑term offtake contracts and policy‑backed pricing floors will be decisive in bankability.

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6. Market and equities view: where this leaves the rare earth landscape
Drawing these developments together, several strategic trends for investors and operators stand out:

• China remains systemically dominant, still at roughly 60% of global mining and about 90% of refining as of 2024, according to the IEA.3 Western moves will erode but not eliminate this dominance in the medium term.

• Heavy rare earths are the new chokepoint. Tanbreez, Serra Verde, Round Top and African heavy REE projects such as Lofdal are disproportionately important, especially for defense and high‑performance EV motors. Any permitting or funding setback at these assets will have outsized geopolitical impact.

• Policy risk and support are now structurally embedded. Between the DOE’s grant programs, CHIPS‑linked equity and loan structures for USA Rare Earth, and Pentagon sourcing rules, rare earth economics are no longer purely price‑driven. Government offtake, guarantees and equity stakes will increasingly determine which projects become “systemically important.”1679

• IP and technology are emerging competitive moats. The MP vs USA Rare Earth lawsuit is an early signal that advanced magnet know‑how is “defense‑grade” IP. Western firms that can combine security‑vetted heavy REE feedstock with proprietary grain boundary diffusion or next‑generation magnet chemistries will command premium margins and government backing.12

For a senior analyst perspective, the priority now is to track:
• Progress on USA Rare Earth’s financing, Serra Verde regulatory approvals and South Carolina plant timelines.
• The evolution and potential settlement or escalation of the MP‑USAR dispute.
• Execution risk at Tanbreez and leading African projects, in the context of Pentagon 2027 sourcing rules.
• How DOE’s $134 million program and similar EU tools translate into real metal and magnet capacity, not just pilot plants.

Those factors will largely determine whether the non‑Chinese rare earth ecosystem in 2030 is a resilient grid of interoperable assets or a patchwork of underutilized projects still tethered to Chinese processing.