Critical raw materials are natural resources that are essential to modern industries and national economies but face significant risks of supply disruption. Governments maintain official lists of these materials, which include metals, minerals, and other resources used in everything from smartphones to fighter jets. The United States currently recognizes 60 critical minerals, while the European Union maintains its own separate list. What makes a material “critical” isn’t just its importance but the combination of high economic value and vulnerable supply chains.
What Makes a Material “Critical”
Two factors determine whether a raw material earns the “critical” label: economic importance and supply risk. A material can be incredibly useful, but if it’s abundant and widely sourced, it doesn’t qualify. Likewise, a rare mineral with no major industrial applications wouldn’t make the cut. The designation applies when both conditions overlap, meaning an industry depends heavily on the material and that material comes from a limited number of sources, has low recycling rates, or lacks viable substitutes.
Supply risk goes beyond simple scarcity in the ground. Most critical raw materials are actually geologically common. The risk comes from where and how they’re extracted, processed, and traded. When one country or a small handful of countries controls most of the world’s refining capacity for a given material, any trade dispute, natural disaster, or policy change in that country can ripple through global supply chains within weeks.
Which Materials Are on the List
The U.S. Department of the Interior, through the U.S. Geological Survey, published its most recent list in November 2024, identifying 60 critical minerals vital to the economy and national security. That update added 10 new entries: boron, copper, lead, metallurgical coal, phosphate, potash, rhenium, silicon, silver, and uranium. Many of these additions reflect growing awareness that even relatively common materials can face supply bottlenecks.
Some of the most frequently discussed critical raw materials include:
- Rare earth elements: A group of 17 chemically similar metals (including neodymium, dysprosium, and yttrium) used in permanent magnets for electric motors, wind turbines, and electronics.
- Lithium: The backbone of rechargeable batteries in electric vehicles and grid-scale energy storage.
- Cobalt: Used alongside lithium in many battery designs to improve energy density and lifespan.
- Gallium and germanium: Essential for semiconductors, fiber optics, solar panels, and military technology.
- Graphite: A key component in battery anodes, needed in large quantities for every electric vehicle produced.
- Copper: Fundamental to electrical wiring, renewable energy systems, and power grids.
The European Union maintains a parallel list with similar overlap but different criteria. Different countries weigh supply risk differently depending on their own trade relationships and domestic resources, so the lists don’t match perfectly.
Why Supply Chains Are So Fragile
The core vulnerability is geographic concentration. China accounts for roughly 60% of global rare earth mining, but its dominance becomes far more pronounced further down the supply chain. At the separation and refining stage, China handles about 91% of global rare earth production. For battery supply chains, the picture is similar: China holds 80% or more of global capacity in many key segments, and in some areas like certain cathode materials, its share reaches 95% or above.
This concentration creates real, measurable consequences when disruptions hit. In August 2023, China imposed export controls on gallium and germanium, two materials critical to semiconductor manufacturing. The effects were immediate. During the first month of controls, China exported zero wrought gallium and zero wrought germanium. For context, China had exported nearly 7,000 kilograms of gallium and close to 8,000 kilograms of germanium just the month before. Gallium prices jumped 27% in the week the controls were announced and climbed 68% in European markets by October 2023. Germanium prices rose 21% over the same period.
These aren’t abstract numbers. Gallium nitride and gallium arsenide are used to build integrated circuit chips, LEDs, laser diodes, and solar cells. A supply disruption in gallium alone has the potential to affect the electronics, computer, and automotive industries simultaneously.
The Energy Transition Is Driving Demand
The push toward renewable energy and electric vehicles is dramatically increasing demand for critical raw materials. The International Energy Agency projects that under current policy trajectories, lithium demand will grow fivefold between now and 2040. Graphite and nickel demand are expected to double over the same period. Cobalt and rare earth demand will increase 50 to 60%, and copper demand, already the largest established market among critical minerals, is projected to grow by 30%.
These growth curves create a tension at the heart of the energy transition. The technologies designed to reduce dependence on fossil fuels require massive quantities of materials that currently flow through highly concentrated supply chains. An electric vehicle contains roughly six times more mineral content than a conventional car. A single onshore wind turbine requires several tons of copper and significant quantities of rare earth magnets. Scaling these technologies to meet climate targets means scaling mineral supply chains at the same time.
What Governments Are Doing About It
Countries are responding with a mix of strategies. Diversifying supply is the most direct approach: funding new mining projects in allied countries, investing in domestic processing capacity, and building strategic stockpiles. The United States, European Union, Canada, Australia, and Japan have all launched critical minerals initiatives in recent years aimed at reducing dependence on any single supplier.
Recycling is another growing priority. Many critical materials exist in products that are currently discarded rather than recovered. Lithium-ion batteries, electronic waste, and industrial scrap all contain recoverable quantities of critical minerals, but recycling infrastructure hasn’t kept pace with demand. Improving collection and recovery rates could meaningfully reduce the volume of newly mined material needed to meet future demand, though recycling alone won’t close the gap given the scale of projected growth.
Substitution research is also accelerating. Engineers are developing motor designs that use fewer rare earths, battery chemistries that eliminate cobalt, and semiconductor materials that could reduce reliance on gallium. These alternatives are at various stages of readiness. Some are already commercially viable, while others remain years from deployment.
The challenge is speed. Mining projects typically take 10 to 15 years from discovery to production. Refining facilities require billions in investment and years of construction. The supply risks associated with the energy transition and shifting geopolitics are expected to intensify in the coming years, and new risks will likely emerge as demand patterns shift. Closing the gap between surging demand and diversified, resilient supply chains is one of the defining industrial challenges of the next two decades.