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HREE Supply Sovereignty Forecast: 2020-2035

When does ex-China Dysprosium and Terbium supply become meaningful? Model three scenarios out to 2035.

The Dy/Tb Dependency Problem

Dysprosium and Terbium are the critical additives that allow NdFeB permanent magnets to function in high-temperature environments - think EV motors, wind turbine generators, and defence guidance systems. Without them, magnets demagnetise under operating conditions.

Unlike Light Rare Earths (LREE) such as Neodymium and Praseodymium, where separation capacity outside China is growing rapidly (led by Lynas and MP Materials), Heavy Rare Earths remain almost entirely processed within China. The question is not whether ex-China HREE supply will grow - it is when and by how much.

This tool models three scenarios for the Western HREE project pipeline from 2026 to 2035. Toggle between Optimistic (flawless execution), Neutral (standard commissioning delays), and Pessimistic(capital and technical bottlenecks) to see how the "Ex-China Ratio" - the share of global HREE supply produced outside China - shifts in each case.

Global HREE Oxide Supply Forecast (Dy + Tb)

China/Myanmar axis vs. ex-China project pipeline, 2020-2035 - metric tonnes

Scenario Model

"Mining Reality" (recommended default) - standard commissioning delays, 18-24 month technical ramps to full purity, one 12-month permitting slip per project.

Resilience Threshold Overlay

Ex-China Ratio 2035

12.7%

Ex-China 2035

10,200t

China/Myanmar 2035

70,000t

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China / Myanmar (HREE axis)
Ex-China pipeline projects
Historical project milestone
Forecast project milestone

Note: Values represent HREE oxide equivalents (Dysprosium + Terbium focus). The China/Myanmar figure includes Myanmar ionic clay concentrate shipped to and separated at Chinese facilities. Historical baseline 2020-2025 is consistent across all scenarios; scenario divergence begins in 2026.

Sources: USGS MCS 2026, Lynas Rare Earths, Serra Verde, Iluka Resources, MP Materials. Scenario modelling: reetracker.

Strategic Analysis: Decoding the HREE Decoupling Timeline

1. The Volume Illusion: Strategic Resilience vs. Market Dominance

When viewing the aggregate volume chart, a casual observer might conclude that the West's effort to break its HREE dependency is failing - China maintains substantial volume dominance even out to 2035. This is a fundamental misunderstanding of strategic resilience.

The critical metric for Western defence procurement and economic sovereignty is not "global percentage share" but Absolute Volumetric Sufficiency. Total military demand for specialised HREEs - high-coercivity magnets for missile guidance, aerospace actuators, and submarine propulsion - represents a remarkably small fraction, often estimated at less than 5-7% of total global output.

Consequently, even under the Pessimistic Scenario, the combined operational capacity of first-generation ex-China producers is more than ample to satisfy 100% of the defence and critical aerospace mandates of the United States, the European Union, and Japan. China can continue to supply tens of thousands of tonnes to unaligned consumer electronics and domestic automotive markets - but once the allied "fortress supply chain" crosses the threshold of absolute domestic demand fulfilment, Beijing's market-share dominance ceases to function as a viable geopolitical lever against Western security infrastructure.

2. The Regulatory Squeeze: How ESG Mandates Shrink China's Addressable Market

A quiet but powerful demand-side structural shift is occurring across major Western jurisdictions. While supply-side projects take years to construct, upcoming legislative deadlines are poised to rapidly suppress Western corporate demand for legacy Chinese HREEs - regardless of how cheaply Beijing prices them.

Landmark regulations taking effect in 2027 - specifically DFARS 252.225-7052 (which extends the Pentagon's look-through ban to cover the mined and separated origin of Dy/Tb in every platform it procures) and the EU Digital Product Passport (DPP) framework under the Critical Raw Materials Act - fundamentally alter the legal definition of market access for Chinese-origin material.

Because China historically blends its domestic quota output with ionic adsorption clay concentrates sourced from the border regions of Myanmar - a jurisdiction with no credible environmental audit infrastructure - Chinese state entities face an insurmountable chain-of-custody problem. They cannot provide the clean, verifiable, look-through provenance documentation that Western ESG disclosure criteria now require. Use the Regulatory Filter toggle on the chart above to see the immediate impact: legacy Chinese production is effectively restricted to domestic and non-aligned consumer ecosystems, while Western pipeline projects operate within a legally protected, high-value commercial sanctuary.

Key Projects in the Pipeline

Lynas Rare Earths - Malaysia HREE Separation

Malaysia · Expected: 2024 (operational)

The pioneer. First commercial ex-China Dy/Tb separation facility. Approximately 100t/yr initial capacity processing Mt Weld concentrate.

Serra Verde - Pela Ema Ionic Clay Mine

Goias, Brazil · Expected: 2025 (Phase 1)

The first large-scale non-Asian ionic clay HREE source. Pela Ema's ionic adsorption clays are HREE-enriched relative to hard-rock carbonatite deposits.

Iluka Resources - Eneabba Rare Earth Refinery

Western Australia · Expected: 2026-2027

Designed to process Browns Range (Northern Minerals) and Eneabba mineral sands concentrate. First integrated HREE refinery in the southern hemisphere.

MP Materials - HREE Separation Loop

Mountain Pass, USA · Expected: 2027-2028

MP's focus has been NdPr; the HREE loop expansion is the next phase. Timeline is sensitive to internal concentrate HREE grade thresholds.

Aclara Resources - Penco Module

Chile · Expected: 2028-2029 (Neutral scenario)

Ion adsorption clay project with a high HREE cut. Permitting timeline in Chile is the critical-path variable for this asset.

Critical Metals / Tanbreez - Kvanefjeld

Greenland · Expected: 2028-2031 (scenario-dependent)

Massive eudialyte-hosted deposit. Sub-Arctic port logistics and capital deployment timeline are the primary bottlenecks.

Methodology & Assumptions

  • - All values represent HREE oxide equivalents (Dysprosium + Terbium combined), measured in metric tonnes per year.
  • - The China/Myanmar figure includes Myanmar ionic clay concentrate shipped to and separated at Chinese facilities. Myanmar mine-gate output is not counted as "ex-China".
  • - Historical 2020-2025 data is consistent across all three scenarios; divergence begins in 2026.
  • - Intermediate years (2021-2023, 2025, 2027, 2029, 2031-2034) are linearly interpolated between anchor data points.
  • - The Ex-China Ratio is calculated as: ex-China HREE supply / total global HREE supply x 100.
  • - Only separated HREE oxides are counted. Mixed concentrate volumes are excluded from ex-China totals until downstream separation occurs outside China.

What is grounded in public data

  • - Lynas Rare Earths HREE separation - Lynas has publicly disclosed the commissioning of heavy rare earth separation capability at its Malaysia LAMP facility. The ~100 t/yr Dy+Tb estimate is derived from disclosed NdPr throughput and published ore chemistry ratios for Mount Weld concentrate; Lynas does not publish a standalone Dy/Tb tonne target.
  • - Global China/Myanmar baseline (65-75k t/yr) - consistent with the USGS Mineral Commodity Summaries 2026 figures for global HREE production. USGS reports aggregate rare earth data; the Dy+Tb sub-total is estimated using published HREE fraction data for Chinese ionic clays and Myanmar Kachin-state ores.
  • - Project sequencing - the order in which projects enter production (Lynas, Serra Verde, Iluka Eneabba, MP Materials, Aclara, Tanbreez) reflects each company's publicly disclosed development schedule, permitting status, and offtake announcements as at mid-2026.
  • - Serra Verde - the Pela Ema project has published TREO production guidance and HREE-rich ionic clay resource estimates. The Dy+Tb tonnages are derived by applying publicly available HREE fraction percentages for Brazilian ionic clays to their disclosed throughput plans.
  • - Iluka Eneabba - the rare earth refinery is processing Browns Range monazite concentrate under a government-backed funding agreement. Tonnage estimates use Iluka's disclosed TREO feed rate and the known HREE fraction of xenotime-bearing Browns Range ore.

What is modelled, not company guidance

  • - Per-project Dy+Tb tonnage - companies report TREO (total rare earth oxide), not individual Dy or Tb lines. All project-level Dy+Tb figures on this chart are reetracker estimates derived by applying typical HREE fraction percentages to disclosed TREO plans. They do not represent company guidance.
  • - MP Materials HREE separation - MP Materials has not publicly committed to commercial-scale Dy/Tb separation. Their current focus is NdPr. The optimistic scenario assumes they eventually commission an HREE separation loop; the neutral and pessimistic scenarios reflect more limited progress.
  • - Aclara Resources and Tanbreez Greenland - both projects were pre-FID as at the date of this model. Any production tonnage attributed to these assets is analyst-level estimation based on published resource statements and developer presentations, not sanctioned project guidance.
  • - Scenario divergence from 2026 - differences between Optimistic, Neutral, and Pessimistic scenarios reflect assumed variation in ramp-up speed, financing conditions, permitting delays, and processing yield. They are not derived from any specific analyst report or company forecast.

This model is indicative only and is not investment advice. Actual project timelines and output will vary. Users should verify project status against company announcements before making any commercial or investment decisions.

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