GuideGeopolitics

Critical minerals supply chain risk: finding where your dependence is concentrated

Most manufacturers know which components they buy but not which critical materials those components contain, or where those materials are refined. This guide sets out a buyer-side method: trace bills of materials to materials, suppliers and processing locations; score exposure on concentration, substitutability, export-restriction history, volume at risk and inventory cover; align the work with EU and US requirements; and choose responses that fit what is driving the risk.

Reviewed 7 min read

On this page
  1. Why refining and processing deserve as much attention as mining
  2. Tracing exposure from bill of materials to refinery
  3. Five exposure factors and the evidence behind each
  4. Rules that ask companies to assess material exposure
  5. Matching the response to what drives the score
  6. Hypothetical example: an industrial motor maker and rare-earth magnets
  7. Questions and answers
  8. Sources

Why refining and processing deserve as much attention as mining

Mining is often spread across several countries, while separation, refining and component manufacture can be concentrated in far fewer. A supply map that stops at the country of extraction can therefore understate concentration. For a permanent magnet, a battery cathode or a semiconductor substrate, the bottleneck is frequently a processing step several tiers away from the buyer.

Producer governments have also used export licensing on processed materials and on the technology used to make them, which turns concentration into policy risk. An exposure map therefore asks more than where a material is mined: it asks who refines it, where the components are made, and which government could stop shipments at each step.

ColdAI's Critical Resource Strategy work analyzes critical mineral dependencies, energy security risks and resource competition, and makes sourcing recommendations1. The steps below show how that mapping is structured.

Tracing exposure from bill of materials to refinery

  1. Map bills of materials to materials

    Start from product bills of materials and component specifications, and identify the critical materials each part contains: rare earth elements in magnets, cobalt, lithium, nickel and graphite in cells, gallium or germanium in some semiconductors, tungsten in tooling. Prioritize by the revenue that depends on the part, not by spend on it.

    Output
    Material exposure list
    Owner
    Engineering with procurement

  2. Trace suppliers beyond the first tier

    Ask direct suppliers to disclose sub-suppliers and processing locations, then cross-check against customs and shipping data and against smelter and refiner lists published by responsible-minerals programs. Record where the data stops: an honest unknown beyond the second tier is more useful than a guess.

    Output
    Tier map with data gaps marked
    Owner
    Procurement and supplier quality

  3. Score exposure

    Score each material and component pair on the five factors in the table below, and combine them into a ranking while keeping each factor visible, so that any high overall score can be explained to the people who must act on it.

    Output
    Ranked exposure register
    Owner
    Risk or strategy team

  4. Check regulatory duties

    Confirm whether EU or US rules require you to assess or disclose this exposure, and align the scoring with those requirements so one exercise serves both purposes.

    Owner
    Legal and compliance

  5. Choose responses

    Match each response to the factor driving the score: concentration calls for diversification, low substitutability for redesign work, thin inventory cover for buffers.

    Output
    Response plan with owners
    Owner
    Operations and procurement leadership

  6. Keep the map current

    Feed export-licensing announcements, sanctions, plant outages and price shocks into monitoring tied to the map, and re-score any node they touch.

    Owner
    Supplier risk monitoring

Five exposure factors and the evidence behind each

FactorWhat it measuresEvidence to useCommon blind spot
Geographic concentrationHow much of each processing step sits in one country or one companySupplier disclosures, refiner lists, trade data, published market studiesStopping the analysis at the mining stage
SubstitutabilityWhether another material or design can do the job, and how long requalification would takeEngineering assessment and customer qualification requirementsIgnoring the time customers or regulators need to re-approve a change
Export-restriction historyWhether producer governments have licensed or restricted exports of the material or related technologyOfficial announcements and trade-policy monitoringWatching ores while missing restrictions on processed forms or processing know-how
Volume at riskRevenue or output that depends on the materialBills of materials joined to sales and production plansMeasuring component spend instead of the revenue that depends on it
Inventory coverHow long stock and supply in transit would last without new deliveriesStock positions at your sites and at key suppliersCounting your own stock while assuming suppliers hold buffers they do not

Score each factor on a simple ordered scale and keep the evidence for every score; a precise-looking composite built on guesses is worse than an honest rough ranking.

Rules that ask companies to assess material exposure

EU Critical Raw Materials Act (Regulation (EU) 2024/1252), Article 24[^2]

European Union

Applies whenA member state identifies a large company that uses strategic raw materials to manufacture strategic technologies, including batteries, hydrogen and renewable energy equipment, traction motors, heat pumps, data transmission and storage equipment, mobile electronic devices, robotics, drones, satellites, aircraft and advanced chips2.

  • Carry out a risk assessment of the strategic raw material supply chain at least every three years, mapping where materials are extracted, processed or recycled, analyzing factors that could affect supply and assessing vulnerability to disruption2.
  • Report to the board where required, and watch the targeted amendments to these duties proposed in 2026, which could widen the mapping to components3.

EU Batteries Regulation (Regulation (EU) 2023/1542), due diligence duties[^4]

European Union

Applies whenEconomic operators above the Regulation's turnover threshold place batteries on the EU market; the duties cover raw materials including cobalt, natural graphite, lithium and nickel4.

  • Adopt a due diligence policy, identify and address supply chain risks, obtain third-party verification and report publicly.
  • Application of these duties has been postponed to August 18, 2027, with the substance unchanged5.

US Critical Minerals List (US Geological Survey)[^6]

United States

Applies whenFederal agencies use the list to direct policy, funding and other measures; it creates no compliance duty for companies by itself.

  • The final 2025 list contains 60 minerals, adding copper, silver, silicon, potash, uranium and others to the previous list6.
  • Use it as a screening reference: a material that appears on both the US list and the EU strategic list deserves early attention.

Matching the response to what drives the score

  • If

    Concentration is high but workable substitutes exist.

    Then

    Qualify a second source or a substitute material now, while supply is still open.

    Qualification takes time that will not be available once a restriction is announced.

  • If

    No practical substitute exists and the part is design-critical.

    Then

    Fund redesign or material-reduction work, and consider long-term offtake agreements with processors outside the concentrated location.

    Only design change or new processing capacity removes the dependence rather than delaying it.

  • If

    Exposure is moderate but inventory cover is thin.

    Then

    Hold buffer stock sized to the time it would take to switch sources, and review the level when monitoring signals change.

    A buffer buys the time a switch needs without paying for permanent duplication.

  • If

    Recycled feedstock is technically acceptable.

    Then

    Write recycled inputs into specifications and supplier contracts.

    Recycled material diversifies origin and may help meet recycled-content rules that apply to some products.

  • If

    The data runs out beyond the second tier.

    Then

    Treat the unknown as a risk in its own right: prioritize supplier engagement and contractual disclosure rights before investing in mitigation.

    Mitigation aimed at the wrong node wastes money and leaves the real dependence in place.

Hypothetical example: an industrial motor maker and rare-earth magnets

Questions and answers

Which materials count as critical raw materials?

It depends on whose list you use. The EU's Critical Raw Materials Act sets a list of critical raw materials and a narrower list of strategic ones, and the US Geological Survey publishes a US list. Both are updated periodically. For your own purposes, the critical materials are the ones in your products that combine concentrated supply with low substitutability, which may include materials on neither list.

Does Article 24 of the Critical Raw Materials Act apply to my company?

Only if a member state identifies you as a large company that uses strategic raw materials to manufacture one of the strategic technologies the Article lists, such as batteries, traction motors, data storage equipment or advanced chips. Even if it does not apply directly, customers within scope may ask suppliers for the same mapping, so building the capability can be worthwhile for companies further up the chain.

How deep into the supply chain should critical minerals mapping go?

Far enough to reach the processing step where concentration is highest, which for many materials is refining, separation or alloying rather than mining. In practice, data becomes thin after the second or third tier, so combine supplier disclosures with customs data and refiner lists, mark where evidence runs out, and focus deeper tracing on the materials that carry the most revenue.

How is exposure mapping different from supplier risk monitoring?

Exposure mapping is a periodic analysis of which materials you depend on and where that dependence is concentrated. Supplier risk monitoring watches named suppliers continuously for events such as financial distress, sanctions or disruption. The map tells monitoring what to watch, and monitoring keeps the map current; our supplier risk monitoring use case covers the continuous side.

Sources

  1. Geopolitics capability: Critical Resource Strategy offering — ColdAI
  2. Regulation (EU) 2024/1252 establishing a framework for ensuring a secure and sustainable supply of critical raw materials — EUR-Lex · checked 10 October 2026
  3. Amending the Critical Raw Materials Act — DIGITALEUROPE · checked 10 October 2026
  4. Regulation (EU) 2023/1542 concerning batteries and waste batteries — EUR-Lex · checked 10 October 2026
  5. EU delays battery due diligence requirement — ESS News · checked 10 October 2026
  6. Interior Department releases final 2025 List of Critical Minerals — US Geological Survey · checked 10 October 2026

More in Geopolitics

Back to Geopolitics

Next step

Find out which critical minerals your products really depend on

Share a product line and its bill of materials, even if incomplete. We will outline how far the trace can go with your data, where concentration is likely to sit and which responses are worth costing.

Discuss a minerals exposure map