China produced 270,000 tonnes of mined REEs and 215,000 tonnes of refined REEs in 2024, accounting for 69% of global mined output and 90% of refined output [S5]. For procurement engineers, that concentration is the single most important supply-chain variable on the BOM.
Refined supply sits even more concentrated than mined supply, which is why the 2026 export licensing revisions to the Import-Export Licensing Catalogue now pull samarium, gadolinium, and lutetium compounds under joint MOFCOM and MIIT licensing [S3]. Buyers specifying NdFeB magnets, SmCo magnets, or phosphors for defence, EV, and laser applications should treat export licence confirmation as a contractual deliverable, not a sales-engineering courtesy.
Where Chinese Supply Is Concentrated in 2026
Chinese rare earth companies control approximately 60% of global mining output and more than 85% of global separation and processing capacity, a split that drives both price formation and licence allocation [S2]. The supply base is not a single national champion. China Northern Rare Earth Group (600111.SH), operating off the Bayan Obo deposit in Inner Mongolia with CN¥3.62 billion registered capital, leads light REE output, primarily neodymium and praseodymium oxides for NdFeB magnet feedstocks [S2].
Heavy and medium rare earths, including dysprosium, terbium, and yttrium, are consolidated under China Rare Earth Group, established December 2021 in Ganzhou, Jiangxi, with subsidiaries 000831.SZ and 600259.SH [S2]. Guangdong Rare Earth Industry Group was transferred into this structure in January 2024, tightening state control over the ion-adsorption clay deposits in the south [S2]. For buyers, the practical implication is that light-REE price discovery (Nd, Pr) and heavy-REE quota allocation (Dy, Tb) are now separate conversations with separate counterparties.
2026 Export Licensing: What Is Controlled and When
China's 2026 Import-Export Licensing Catalogue revisions added export licensing for samarium, gadolinium, and lutetium compounds, jointly administered by MOFCOM and MIIT, with extraterritorial provisions introduced in October 2025 and enforcement of those extraterritorial provisions deferred to November 2026 [S3]. This is a licensing regime, not a ban, so existing channels remain usable, but every shipment of controlled compounds now requires end-use documentation and licence evidence on the commercial invoice [S3].
For industrial buyers, the practical decision tree is clear. Samarium drives SmCo magnets for high-temperature servos and aerospace actuators. Gadolinium is a neutron-absorber and MRI contrast agent precursor. Lutetium underpins PET scanner scintillators and high-refractive-index optical glass. Any supplier quoting these three elements without referencing the new licence class is a compliance flag, not a price opportunity. Permanent magnets consumed 48% of total REE demand in 2024, so the licence list is short but the volume exposure is large [S5].
Selecting a Chinese NdFeB Magnet Supplier: Process Capability Checklist
Leading Chinese NdFeB factories have fully adopted Grain Boundary Diffusion (GBD) technology to reduce heavy rare earth content while still meeting EH-grade high-temperature ratings, a critical process capability for buyers targeting defence and EV traction motor applications [S7]. GBD works by diffusing dysprosium or terbium along grain boundaries rather than doping them through the bulk alloy, which preserves coercivity at 180–200°C operating temperatures while cutting heavy REE mass by a meaningful margin.
When qualifying a Chinese NdFeB supplier, require three documents: a material composition sheet with explicit Dy/Tb content per grade, evidence of GBD line capability (not just batch capability), and a written export-control compliance statement naming the licence class that will cover each shipment. Suppliers who cannot produce all three should be downgraded to prototype-only status. For broader background on rare earth extraction chemistry and the multi-stage separation challenge, the Rare Earth Extraction Guide outlines the underlying process constraints that drive cost and purity.
Non-Chinese Alternatives: Capacity Reality Check
Outside China, the credible 2026 alternatives are MP Materials (USA), Lynas Rare Earths (Australia), and a long tail of juniors including Rainbow Rare Earths [S8]. Visible Alpha Insights consensus forecasts for seven listed rare earth producers indicate China will account for roughly 68% of combined production volumes, a figure that has trended upward as licensing tightens [S1]. Non-Chinese capacity is real but skewed toward light REE concentrate; full heavy-REE separation outside China remains scarce.
For buyers forced to diversify, the realistic sequence is: qualify MP or Lynas for NdPr oxide first (the easy substitution), then evaluate Australian or Canadian midstream projects for Dy/Tb, and only then consider whether your application tolerates the lower coercivity of reduced-heavy-REE magnets. In some cases, particularly aerospace and defence actuators, the magnet chemistry is locked by specification and the only available lever is dual-sourcing the same Chinese supplier through two different provinces, not replacing the supplier outright.
Defence and EV Implications: Traceability Becomes a Contract Clause
A 2026 US executive order requires major arms manufacturers to trace multi-tier supply chains and actively phase out Chinese rare earths, raising the documentation bar across the defence industrial base [S6]. For non-US buyers, the same traceability pressure is arriving through EU Critical Raw Materials Act reporting and OEM ESG audits, so the contractual requirement is converging globally.
Operationally, this means purchase orders for NdFeB magnets, SmCo magnets, and REE-bearing phosphor powders should now include a country-of-origin clause at the element level, not the component level, and a right-of-audit clause covering the magnet factory's REE feedstock. Buyers who wait for their OEM customer to ask will find the audit window has already closed. Engineers sourcing through industrial intermediaries should reference the Industrial Valve Specification Guide pattern, where material traceability is treated as a hard deliverable rather than a sales question.
What to Verify Before Issuing a PO in Q3 2026
Four checkpoints separate a compliant REE purchase from a customs hold. First, confirm the supplier holds an active MOFCOM export licence for any samarium, gadolinium, or lutetium compounds on the BOM, with licence number referenced on the commercial invoice [S3]. Second, request the GBD process capability declaration for any EH-grade NdFeB magnet grade above 150°C operating temperature [S7]. Third, obtain a mill test report listing Dy, Tb, Nd, Pr, and any heavy-REE content in mass percent, with tolerances, not just nominal values. Fourth, verify the separation technology origin: solvent-extraction trains with hundreds of stages are the norm for 99.5%+ purity, and any supplier claiming equivalent purity with shorter chains should be treated as high-risk [S4].
The first verifiable signal to watch in the second half of 2026 is whether the November 2026 extraterritorial enforcement date for the 2025 export-control provisions actually triggers shipment denials at Chinese ports, or whether diplomatic pause extends again [S3]. The second signal is MP Materials and Lynas quarterly disclosures on heavy-REE separation commissioning, since light-REE substitution is already a solved problem and the next bottleneck sits squarely on Dy and Tb capacity.
Spec-level background on the components involved: linear guide.
Background reading: Tin Bronze Selection for Cold Storage Warehouses: Spec-First Guide for Bearings.