1. Introduction

Rare earth elements (REEs) are a group of 17 minerals essential for electric vehicles, permanent magnets, wind turbines, semiconductors, telecommunications, aerospace, defence systems, robotics and advanced electronics. Their strategic importance does not arise merely from geological scarcity. The principal competition-law concern is that the global supply chain is concentrated at several critical stages—mining, separation, refining, metal-making and permanent-magnet production.

China has historically occupied a particularly strong position in the global rare-earth ecosystem. The EU Parliament has described China as controlling roughly 75% of mining output and 85% of processing capacity, with substantially higher shares for certain heavy rare earths.

This creates a distinctive competition problem:

The relevant market may not be monopolised at the mine level, yet control over processing, refining, technology, logistics or downstream magnets can create effective bottleneck power.

Thus, rare-earth concentration has to be analysed through competition law, international trade law, merger control, state-aid/subsidy rules, national-security regulation and supply-chain resilience policy.

2. Structure of the Global Rare-Earth Supply Chain

The supply chain can broadly be represented as:

Exploration → Mining → Beneficiation → Separation → Refining → Metal/alloy production → Permanent magnets → Components → Final products

The greatest strategic vulnerability frequently occurs after extraction.

For example:

• a country may possess substantial rare-earth deposits;
• mining may therefore be geographically diversified;
• but it may lack separation/refining capacity;
• it may consequently have to send concentrates elsewhere;
• downstream manufacturers may then depend upon a small number of processors;
• the processor can therefore exercise considerable bargaining power.

This produces a vertical concentration problem.

Major competition risks

1. Horizontal concentration — few mining or processing firms.
2. Vertical integration — one undertaking controls several stages.
3. Input foreclosure — restricting access to rare-earth inputs.
4. Customer foreclosure — locking downstream manufacturers into supply arrangements.
5. Export restrictions — limiting supplies available internationally.
6. Predatory or exclusionary pricing.
7. Long-term exclusive contracts.
8. Strategic stockpiling.
9. State-supported consolidation.
10. Merger-driven concentration.
11. Technology dependence.
12. Control over recycling infrastructure.

3. Why Rare-Earth Concentration Is Different From Ordinary Market Concentration

Traditional competition law normally asks:

Who supplies the product, at what price, and with what market share?

Rare-earth markets require additional questions:

• Who controls the ore?
• Who controls separation technology?
• Who controls refining?
• Who owns processing facilities?
• Who controls patents and technical know-how?
• Who controls export licences?
• Who has access to transport infrastructure?
• Who controls downstream magnet manufacturing?
• Can customers switch suppliers?
• How long would it take to establish alternative processing capacity?

Consequently, a firm with a seemingly moderate market share can possess substantial strategic market power if competitors cannot reproduce its supply chain quickly.

4. International Trade Law and Competition Law Overlap

Rare-earth concentration is particularly important because governments themselves can create or reinforce market power.

A state can influence the market through:

• export quotas;
• export duties;
• licensing restrictions;
• production quotas;
• subsidies;
• state-owned enterprises;
• investment restrictions;
• domestic-content requirements;
• preferential financing;
• environmental approvals;
• strategic stockpiles.

The resulting problem is sometimes better characterised as state-created supply-chain dominance rather than conventional private monopolisation.

The leading legal precedent is the WTO's China–Rare Earths litigation.

5. Case Law 1 — China — Measures Related to the Exportation of Rare Earths, Tungsten and Molybdenum (DS431)

Facts

The United States challenged China's export restrictions on rare earths, tungsten and molybdenum.

The challenged measures included:

• export duties;
• export quotas;
• export licensing restrictions;
• limitations concerning eligible exporters.

The United States argued that these restrictions disadvantaged foreign manufacturers by restricting their access to essential raw materials.

Decision

The WTO Panel and Appellate Body found significant aspects of the export restrictions inconsistent with China's WTO obligations.

China attempted to rely upon environmental and conservation justifications under GATT Article XX.

The WTO rejected the justification for the relevant export quotas because the restrictions did not satisfy the necessary conditions of Article XX(g).

Competition-law significance

The case demonstrates that a dominant position in the supply of a critical raw material cannot automatically justify discriminatory restrictions on foreign purchasers.

The critical principle is:

Resource conservation cannot simply become a mechanism for favouring domestic downstream industries.

For competition analysis, this is particularly important where a dominant upstream jurisdiction supplies inputs to globally competing manufacturers.

6. Case Law 2 — China — Measures Related to the Exportation of Rare Earths, Tungsten and Molybdenum (DS432)

Facts

The European Union brought a parallel dispute concerning China's rare-earth export restrictions.

The EU challenged:

• export duties;
• export quotas;
• minimum-price mechanisms;
• licensing requirements;
• restrictions on trading rights.

The dispute concerned the relationship between China's control of critical raw materials and the competitive position of foreign downstream manufacturers.

Decision

The WTO Appellate Body upheld the essential findings against the challenged restrictions.

China subsequently removed the export duties and quotas that had been found inconsistent with WTO rules.

Significance

This case demonstrates the importance of non-discriminatory access to globally important inputs.

A concentrated supply chain becomes especially problematic where:

Upstream concentration + export restrictions + downstream domestic preference = competitive distortion.

The case is therefore highly relevant to modern concerns over critical-mineral supply chains.

7. Case Law 3 — China — Measures Related to the Exportation of Rare Earths, Tungsten and Molybdenum (DS433)

Facts

Japan independently challenged China's rare-earth export regime.

Japan alleged that Chinese restrictions affected international access to rare earths and distorted competition between Chinese and foreign manufacturers.

The measures included export quotas, duties, licensing requirements and restrictions on exporters.

Decision

The WTO proceedings resulted in findings substantially aligned with DS431 and DS432.

The WTO rejected the attempt to justify the relevant export quotas under the conservation exception.

Competition significance

The Japanese dispute demonstrates that the problem was not merely a bilateral trade disagreement.

It reflected a broader structural problem:

A highly concentrated upstream market can affect competition simultaneously across multiple downstream national markets.

This is especially relevant today because rare-earth-dependent industries are globally interconnected.

8. Case Law 4 — China — Measures Related to the Exportation of Various Raw Materials (DS394)

Facts

The United States challenged Chinese restrictions involving several industrial raw materials, including:

• bauxite;
• coke;
• fluorspar;
• magnesium;
• manganese;
• silicon;
• zinc and other materials.

The United States argued that export restrictions produced scarcity and higher international prices while giving Chinese downstream industries more secure and cheaper access.

Legal issue

The dispute addressed:

• GATT Article XI;
• China's Accession Protocol;
• export quotas;
• export duties;
• licensing;
• conservation exceptions.

Decision

The WTO Appellate Body substantially upheld findings against the relevant export restrictions.

It also rejected the argument that China could simply invoke GATT Article XX to justify export duties inconsistent with its accession commitments.

Relevance to rare earths

Although the minerals were not primarily rare earths, the reasoning is highly relevant.

It establishes a broader principle:

A country controlling an important raw-material supply cannot necessarily use export restrictions to give its domestic manufacturers a competitive advantage.

9. Case Law 5 — China — Measures Related to the Exportation of Various Raw Materials (DS395)

Facts

The European Communities brought a parallel challenge to the Chinese raw-material export regime.

The EU argued that Chinese export restraints distorted access to raw materials and thereby affected competition between European and Chinese manufacturers.

The dispute concerned the same broad category of measures examined in DS394.

Decision

The WTO proceedings resulted in findings against significant aspects of China's export regime.

The Appellate Body reports in DS394, DS395 and DS398 were adopted together in February 2012.

Significance

The case is important because it illustrates how upstream resource control can generate downstream competitive effects.

The legal analysis therefore moves beyond conventional market-share analysis.

A critical raw material may function as an:

essential economic input whose availability determines whether downstream firms can effectively compete.

10. Case Law 6 — China — Measures Related to the Exportation of Various Raw Materials (DS398)

Facts

Mexico separately challenged China's export restrictions concerning various raw materials.

The measures included restrictions affecting exportation and administration of raw-material supplies.

Decision

The dispute formed part of the same WTO litigation cluster as DS394 and DS395, with the Appellate Body addressing important issues concerning export restrictions and conservation exceptions.

Importance

DS398 reinforces the proposition that raw-material restrictions can have international competitive consequences even where the immediate legal measure is an export regulation rather than a conventional antitrust practice.

For rare-earth markets, this is particularly significant because:

• raw materials are globally traded;
• refining may occur in a different jurisdiction from mining;
• downstream manufacturing may occur elsewhere;
• restrictions at one stage can therefore affect multiple markets.

11. Case Law 7 — United States v. Aluminum Company of America (Alcoa)

Although not a rare-earth case, Alcoa remains one of the foundational authorities for analysing monopoly power.

The court examined whether a firm's control over production capacity and market supply could constitute monopolisation.

Relevance to rare earths

Rare-earth markets demonstrate a modern version of the Alcoa problem.

A firm or state-linked industrial group may obtain power through:

• control over production capacity;
• acquisition of competitors;
• control of processing technology;
• strategic investment;
• exclusionary supply arrangements.

The important lesson is that competition law can examine structural control over supply, not merely explicit price increases.

12. Case Law 8 — United States v. Microsoft Corp.

Microsoft is another useful analogue for analysing vertically integrated infrastructure markets.

The case established important principles concerning exclusionary conduct by a dominant undertaking that controls a critical technological platform.

Application to rare earths

The analogy is:

Operating system → technological bottleneck

versus

Rare-earth separation/refining → industrial bottleneck

A rare-earth processor that controls an indispensable processing stage may potentially use that position to:

• discriminate against customers;
• deny access;
• impose exclusionary contractual terms;
• favour affiliated downstream businesses;
• increase rivals' costs.

The exact legal test remains jurisdiction-specific, but the economic logic of bottleneck control is highly relevant.

13. Case Law 9 — United Brands v Commission

The European Court of Justice's decision in United Brands v Commission is particularly relevant to critical minerals because it developed principles concerning dominant positions and potentially abusive conduct.

The case examined:

• market definition;
• dominance;
• commercial dependence;
• discriminatory conduct;
• exclusionary behaviour.

Rare-earth application

A rare-earth supplier with substantial market power could potentially raise concerns where customers have:

• no realistic alternative;
• high switching costs;
• long qualification periods;
• technologically specialised requirements.

The relevant question is therefore not merely:

"Are alternative minerals theoretically available?"

but:

"Can a downstream manufacturer realistically switch to another source within a commercially meaningful period?"

14. Concentration at Different Stages

A. Mining concentration

Mining concentration creates upstream bargaining power.

Potential concerns include:

• coordinated production reductions;
• exclusive offtake agreements;
• acquisition of prospective deposits;
• control of exploration rights.

B. Separation concentration

This may be even more significant.

Rare-earth ores contain mixtures of elements that must be separated chemically.

Consequently:

Ore availability ≠ usable rare-earth supply.

A country possessing deposits but lacking separation capacity may remain dependent on foreign processors.

C. Refining concentration

Refining converts separated oxides into usable materials.

Control over refining can therefore create another bottleneck.

A competitor may technically possess access to ore while remaining unable to produce:

• metals;
• alloys;
• magnet-grade materials.

D. Permanent-magnet concentration

NdFeB magnets are particularly important for:

• EV motors;
• wind turbines;
• robotics;
• industrial motors;
• defence applications.

This makes downstream magnet manufacturing strategically significant.

15. Vertical Foreclosure

Vertical integration becomes problematic where one undertaking controls several stages.

For example:

Mining company → processor → magnet producer → EV manufacturer

If the integrated undertaking restricts supply to independent competitors, competition authorities may investigate:

Input foreclosure

Competitors cannot obtain adequate quantities of rare-earth materials.

Customer foreclosure

Competing processors cannot obtain sufficient customers because the integrated group controls downstream demand.

Margin squeeze

An integrated company could theoretically:

• charge competitors high upstream prices;
• sell downstream products at aggressively low prices.

This can weaken independent downstream rivals.

16. Long-Term Contracts and Offtake Agreements

Long-term contracts are not automatically anticompetitive.

Indeed, they can be economically beneficial because mining and refining projects require enormous capital expenditure.

However, competition concerns increase where contracts:

• cover most available supply;
• have excessive duration;
• contain exclusivity clauses;
• restrict resale;
• prevent switching;
• include destination restrictions;
• foreclose competing processors.

The appropriate analysis should therefore distinguish between:

investment-supporting contracts

and

market-foreclosing contracts.

17. Merger Control and Rare-Earth Concentration

Merger control is becoming increasingly important.

A transaction involving two mining companies may appear small under conventional turnover thresholds while controlling a strategically important mineral.

This raises a difficult question:

Should competition authorities consider strategic supply-chain concentration even where ordinary market-share indicators appear modest?

Modern merger control increasingly considers:

• future competition;
• innovation;
• supply security;
• potential competitors;
• vertical foreclosure;
• ecosystem effects;
• access to critical inputs.

A contemporary example is Lynas Rare Earths' announced acquisition of Meteoric Resources' Brazilian Caldeira rare-earth project, intended in part to expand access to heavy rare earths and diversify supply outside China.

The transaction demonstrates how mergers themselves are becoming instruments of supply-chain diversification.

18. State-Owned Enterprises and Subsidies

Rare-earth concentration becomes especially complex where firms benefit from state support.

Possible forms include:

• subsidised electricity;
• cheap credit;
• preferential land;
• government-backed infrastructure;
• tax advantages;
• export financing;
• state procurement;
• subsidised environmental remediation.

The competition concern is not simply that a company is efficient.

Rather:

State support may permit an undertaking to maintain or expand capacity at conditions that independent competitors cannot replicate.

This can accelerate global concentration.

19. Strategic Stockpiles

Governments increasingly view rare earths as strategic commodities.

Stockpiling can improve resilience but can also affect competition.

Large state purchases may:

• reduce immediately available supply;
• raise prices;
• alter investment incentives;
• favour particular suppliers;
• encourage producers to prioritise government contracts.

A carefully designed stockpile should therefore be transparent, competitively neutral and proportionate.

20. Recycling as a Competition Remedy

Recycling can reduce dependence on primary mining.

Potential competitive advantages include:

• increasing secondary supply;
• reducing entry barriers;
• creating new suppliers;
• reducing dependence on concentrated mining regions.

Competition authorities may therefore regard recycling capacity as a supply-side competitive constraint.

However, recycling can itself become concentrated if a small number of firms control:

• collection;
• recovery technology;
• patents;
• processing facilities;
• access to end-of-life products.

21. National Security vs Competition Law

Rare earths demonstrate a fundamental tension between:

Competition objective

Maintain:

• low prices;
• consumer choice;
• efficient production;
• innovation;
• open markets.

Strategic objective

Maintain:

• domestic capacity;
• defence supply;
• resilience;
• technological sovereignty;
• diversified supply.

These objectives are not always identical.

For example, forcing the cheapest supplier to compete may reduce short-term prices but could increase long-term dependence on a single geopolitical source.

Therefore, modern policy increasingly favours:

competitive resilience rather than simple cost minimisation.

22. Competition Law Remedies

Possible remedies include:

Structural remedies

• divestiture;
• separation of mining and processing assets;
• prohibition of certain acquisitions.

Behavioural remedies

• non-discriminatory supply;
• transparent pricing;
• access commitments;
• prohibition of exclusivity.

Trade remedies

• elimination of discriminatory export restrictions;
• transparency requirements;
• WTO proceedings.

Industrial-policy remedies

• support for alternative processing facilities;
• recycling incentives;
• strategic reserves;
• diversified procurement.

Merger remedies

• supply commitments;
• licensing of processing technology;
• access to infrastructure;
• divestiture of overlapping assets.

23. Key Legal Principles Emerging From the Case Law

24. Overall Competition-Law Framework

A competition authority examining global rare-earth concentration should ideally proceed through the following framework:

Step 1 — Define the relevant product market

Determine whether the market concerns:

• raw ore;
• concentrate;
• individual rare-earth oxides;
• metals;
• alloys;
• NdFeB magnets;
• specialised heavy rare earths.

Step 2 — Define the geographic market

Ask whether supply is:

• local;
• regional;
• global;
• constrained by transport;
• constrained by export controls.

Step 3 — Measure concentration

Consider:

• market shares;
• HHI;
• capacity;
• reserves;
• processing capacity;
• effective available supply.

Step 4 — Identify bottlenecks

Determine whether competitors can realistically reproduce:

• mines;
• separation plants;
• refineries;
• magnet plants;
• technological capabilities.

Step 5 — Analyse vertical relationships

Examine:

• exclusive supply;
• offtake agreements;
• vertical integration;
• discriminatory access;
• margin squeeze.

Step 6 — Examine state intervention

Consider:

• subsidies;
• export controls;
• state ownership;
• preferential financing;
• government procurement.

Step 7 — Evaluate competitive effects

Assess:

• prices;
• output;
• innovation;
• entry;
• resilience;
• downstream foreclosure.

Step 8 — Design remedies

Use the least distortive combination of:

• access obligations;
• merger remedies;
• diversification;
• recycling;
• transparency;
• trade-law enforcement.

25. Conclusion

Global rare-earth supply-chain concentration represents a new generation of competition-law problem.

It is not simply a question of whether one corporation has a high market share. The deeper problem is the interaction between:

resource ownership + processing concentration + vertical integration + state policy + export controls + technological bottlenecks + downstream dependence.

The WTO rare-earth litigation—DS431, DS432 and DS433—establishes the most direct legal foundation: control over critical raw materials cannot simply be converted into discriminatory export restrictions designed to advantage domestic downstream industries.

The China–Raw Materials disputes, DS394, DS395 and DS398, further demonstrate that export restraints can create competitive advantages for domestic industries by changing the availability and price of essential industrial inputs.

The central contemporary lesson is therefore:

Rare-earth competition policy must protect not only competition between firms, but also competitive access to the infrastructure and inputs upon which entire downstream markets depend.