How does geopolitics shape critical mineral supply chains?

The short answer

Critical mineral supply chains have three stages: extraction (mining), refining (chemical conversion to battery- or magnet-grade material), and component manufacturing. Geographic concentration varies sharply across stages. Extraction is concentrated in specific countries (the DRC for cobalt, Indonesia for nickel, Australia and Chile for lithium), but refining is concentrated in China across nearly all critical minerals.

The IEA Critical Minerals Outlook 2025 documents this concentration: China refines roughly 70% of the strategic minerals, with graphite and rare earths even more concentrated. Some minerals, typically copper or nickel, are geographically more diversified.

The structural shift from “where is it dug up” to “where is it refined” reframes the geopolitics of resource security.

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What the data shows

Critical minerals data from IEA, USGS, and BloombergNEF provide the picture:

• Cobalt: the DRC leads mining; China the largest refiner (USGS, IEA)
• Nickel: Indonesia leads mining and keeps growing; China a major refiner
• Lithium: Australia and Chile lead mining; China leads refining
• Rare earth elements: China leads mining and dominates refining
• Natural graphite: China leads mining and dominates refining
• Copper: Chile leads mining; China the largest refiner
• Critical mineral investment (IEA): highly concentrated in extraction rather than refining

The exception that nuances the picture: copper (the most volume-intensive critical mineral) has more geographically diversified refining (Chile, China, Japan, Europe). It is the exception that proves the rule: where commodity volumes are very large, multiple refining centers exist; where volumes are smaller and specialized, refining concentrates.

→ Dataset: Copper price history

Why it happens: the macro mechanism

The structural concentration in midstream processing has three drivers operating simultaneously.

Channel 1: Capital and pollution arbitrage. Refining critical minerals is capital-intensive (multi-billion-dollar facilities), pollution-intensive (heavy metals, acid waste), and skill-intensive (specialized chemistry). China has invested heavily in this stage over two decades, accepting environmental costs OECD jurisdictions have been less willing to bear. The resulting cost advantage means even minerals mined elsewhere (Australian lithium, Indonesian nickel) are economically routed through Chinese refineries. The IEA documents that Chinese refining costs for many minerals are well below comparable Western facilities, partly reflecting differences in environmental and labor standards.

Channel 2: Industrial policy and scale. China’s Made in China 2025 and earlier strategic-resource policies explicitly targeted midstream processing as a deliberate national priority. By contrast, OECD jurisdictions historically focused on extraction (mining concessions) rather than processing. The IEA Critical Minerals Outlook documents that for many minerals, scaling Western refining capacity to materially reduce dependence would require many years and heavy capex: a multi-cycle commitment. This is the most underappreciated dimension of supply-chain geopolitics: the chokepoint cannot be relocated quickly, and the policy responses are necessarily long-dated.

A short note on the response. The EU Critical Raw Materials Act (2024) targets 40% of refining capacity domestically by 2030; the US Inflation Reduction Act conditions battery tax credits on domestic content. Japan has stockpiled critical minerals strategically since the 2010 rare-earth dispute with China. These responses are real but partial: they reduce dependence at the margin without eliminating it.

Channel 3: Demand growth outpacing diversification. Critical mineral demand is projected to grow strongly by 2030 in net-zero-aligned scenarios. New refining capacity outside China (Australia’s Pilbara Minerals, US lithium hydroxide projects, European Battery Alliance) is being built but cannot keep pace with demand growth. The result: even as Western refining capacity grows in absolute terms, China’s market share could remain dominant simply because demand is growing faster than non-Chinese capacity.

Synthesis by regime: in the 1990-2010 globalization regime, supply-chain concentration in low-cost jurisdictions was treated as efficient, with limited concern about strategic dependence; in the 2010-2020 awareness regime, the 2010 Senkaku rare-earth dispute exposed vulnerability and triggered initial responses (Japan stockpiles, EU strategic minerals list); in the 2022-2025 fragmentation regime, the EU Critical Raw Materials Act, IRA, and Australian government coinvestments have begun to reshape policy, but installed refining capacity outside China remains limited.

The 21st-century resource geopolitics is not about who owns the deposit: it is about who refines what comes out of it.

→ Framework: Commodity regimes and energy transition

What it means for different economic actors

Savers. Critical mineral price volatility (copper, lithium, nickel) is increasingly a macro variable. The 2022 lithium spike (peak ~$80,000/tonne LCE, since collapsed) and 2024 nickel volatility have fed through to battery costs, EV prices, and ultimately energy transition deployment economics. Indirect exposure is broad-based.

Investors. The structural concentration in midstream processing creates investment exposures for companies operating non-Chinese refining capacity (Albemarle, Pilbara Minerals, Sigma Lithium for lithium; First Quantum and Freeport for copper; Glencore for cobalt and nickel). Mining equities have historically been highly cyclical, but the structural demand outlook from the transition is creating a divergence between cyclical and structural drivers. Government policy support (IRA, CRMA) materially affects project economics for non-Chinese refiners.

Industrial firms. Battery makers, EV manufacturers, and grid-scale storage developers face direct supply-chain exposure. Tesla, Ford, GM, Volkswagen, and Chinese OEMs have implemented direct sourcing agreements with miners (offtake contracts) and minority equity stakes in refining capacity. This vertical-integration pattern resembles the early-20th-century oil industry, where refiners and consumers integrated upstream to manage supply risk.

A common error is to focus on mining concentration when refining concentration is the actual chokepoint. Australian lithium miners diversify away from Chinese demand only marginally if Australian-mined ore is still routed to Chinese refineries. The geographic diversification of mining masks the concentration of midstream value capture.

Practical observation

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Frequently asked questions

Why is refining concentrated where mining is not?

Mining requires the mineral deposit to exist in a specific location, with little flexibility: geology dictates geography. Refining is a manufacturing process that can theoretically locate anywhere, but in practice locates where capital cost, environmental regulation, energy cost, and skilled labor align favorably. China invested in midstream processing capacity over two decades, accepting environmental costs and providing scale subsidies that OECD jurisdictions did not match. The result: mining is geographically diverse but refining concentrates. Reversing this would require 5-10 years of deliberate capacity build, not a price signal alone.

Are we likely to see a “critical minerals shock” similar to the 1973 oil shock?

The conditions for a 1973-style shock (a single bilateral political dispute that triggers an embargo or coordinated supply cut) could exist for specific minerals (rare earths in particular, which China has historically restricted exports of). However, the 2010 Senkaku dispute already triggered such an episode and prompted multi-year diversification efforts. A future shock would likely be sector-specific (e.g., affecting rare-earth-dependent magnet supply) rather than economy-wide as oil shocks were. The economic damage from individual mineral disruptions is real but more contained than oil shocks because alternatives exist for most applications and substitution is partial.

How does the EU Critical Raw Materials Act change the picture?

The Critical Raw Materials Act, adopted in 2024, sets benchmarks for 2030: 10% of EU consumption from extraction within the EU, 40% from processing within the EU, 25% from recycling, and no more than 65% from a single third country. These are aspirational targets: meeting them would require substantial new mining permits, refining capacity, and recycling infrastructure within 5 years, against a starting point where refining of most critical minerals within the EU is below 10%. The CRMA represents intent and policy framework, not yet capacity. Its effectiveness will depend on companion industrial-policy financing and permitting reform.

Last updated — 20 September 2026