The Quiet War Over Rare Earths: How China’s Export Controls Are Reshaping Global Supply Chains

China has tightened its grip on the world’s rare earth supply. Again.

This time, the stakes feel different. Beijing’s latest round of export controls on critical minerals — including rare earths essential to everything from fighter jets to electric vehicles — has sent ripples through defense ministries, corporate boardrooms, and commodity trading desks from Washington to Tokyo. The measures, which expanded significantly in recent months, aren’t just trade policy. They’re geopolitical leverage of the most consequential kind.

As BBC News reported, China’s dominance over rare earth processing and export has become one of the most potent tools in its escalating trade confrontation with the United States and its allies. The controls target materials that Western nations simply cannot source in sufficient quantities from anywhere else — at least not yet. That asymmetry is the point.

Rare earths are a group of 17 metallic elements with names most people can’t pronounce — neodymium, dysprosium, terbium — but they sit at the heart of modern technology. Permanent magnets made from these elements power the motors in electric vehicles, the turbines in wind farms, and the guidance systems in precision-guided munitions. Without them, the green energy transition stalls. Without them, advanced weapons systems don’t work.

China controls roughly 60% of rare earth mining globally. But the real chokepoint is processing: Chinese firms handle nearly 90% of the world’s rare earth refining. That’s not an accident. It’s the result of decades of deliberate industrial policy, state subsidies, and a willingness to absorb the environmental costs that drove competitors out of the market. When Beijing restricts exports, there is no quick alternative.

The latest restrictions arrived in waves. In December 2023, China banned the export of certain rare earth extraction and separation technologies. Then, in the spring of 2024, it imposed new licensing requirements on several processed rare earth products. By early 2025, as trade tensions with the Trump administration intensified over tariffs, Beijing expanded controls further — targeting antimony, germanium, gallium, and additional rare earth compounds critical to semiconductor manufacturing and defense applications.

The effect has been immediate. Prices for several rare earth oxides have spiked. Neodymium oxide, a key input for the permanent magnets used in EV motors, saw prices climb sharply in recent months. Defense contractors in the U.S. and Europe have scrambled to assess their supply chain exposure. And governments that spent years talking about reducing dependence on Chinese minerals are now confronting the reality that talk is cheap, but mines are not.

The Pentagon has been sounding alarms about this vulnerability for years. A 2022 Department of Defense report identified rare earths as among the most critical supply chain risks facing the U.S. military. The F-35 fighter jet alone requires approximately 920 pounds of rare earth materials. Abrams tanks, Virginia-class submarines, Tomahawk cruise missiles — all depend on Chinese-processed minerals. The irony is sharp: America’s most advanced weapons platforms rely on materials refined by its chief strategic competitor.

Washington hasn’t been idle. The Biden administration invested heavily in domestic mining and processing through the Inflation Reduction Act and the Defense Production Act. MP Materials, which operates the Mountain Pass mine in California — the only active rare earth mine in the United States — received federal support to build out a domestic processing facility. The company began producing separated rare earth oxides in 2023, a meaningful step. But scale remains the problem. Mountain Pass produces a fraction of what China does, and building full processing capacity takes years, not months.

The Trump administration, now back in office, has taken a more confrontational approach. Tariffs on Chinese goods have escalated dramatically, with rates on some categories reaching levels not seen since the Smoot-Hawley era. But tariffs are a blunt instrument when applied to materials you can’t source elsewhere. Taxing Chinese rare earth imports doesn’t create American rare earth processing. It just raises costs for the defense and technology firms that need them.

Australia has emerged as a potential alternative supplier. Lynas Rare Earths, headquartered in Sydney, operates the Mount Weld mine in Western Australia and a processing facility in Malaysia. It’s the largest rare earth producer outside China and has secured contracts with the U.S. Department of Defense to build a processing plant in Texas. But Lynas’s total output still represents a small fraction of global demand. And the Malaysian processing plant has faced repeated environmental objections and regulatory delays, underscoring a fundamental tension: the West wants rare earths but often doesn’t want the environmental consequences of producing them.

Canada, too, has moved aggressively. The Canadian government designated rare earths as critical minerals and has backed several exploration and development projects in Quebec, the Northwest Territories, and Saskatchewan. Vital Metals began production at its Nechalacho mine in 2021, making it the first rare earth mine in Canadian history. Progress, yes. But still small-scale.

Europe faces perhaps the starkest vulnerability. The EU imports nearly all of its rare earths, with the vast majority coming directly or indirectly from China. The European Critical Raw Materials Act, passed in 2024, set ambitious targets: by 2030, at least 10% of the EU’s annual consumption of strategic raw materials should be mined domestically, 40% processed domestically, and 25% recycled. Those numbers look good on paper. Meeting them is another matter entirely. Europe has deposits — in Sweden, Finland, Norway, and Greenland — but permitting timelines stretch for a decade or more. Environmental regulations, while well-intentioned, create barriers that China simply doesn’t face.

Recycling offers a partial answer. Urban mining — recovering rare earths from discarded electronics, spent magnets, and industrial waste — is gaining traction. Companies like Urban Mining Company in the U.S. and Cyclic Materials in Canada are developing processes to extract and reuse rare earth elements. The economics are improving as primary supply tightens and prices rise. But recycling currently accounts for less than 1% of global rare earth supply. It’s a complement to mining, not a substitute.

Japan provides an instructive case study. After China restricted rare earth exports in 2010 during a dispute over the Senkaku Islands, Tokyo launched an aggressive diversification strategy. Japanese firms invested in mines in Australia, India, and Vietnam. The government funded research into rare earth substitution — finding ways to reduce or eliminate rare earth content in magnets and other applications. Toyota, for instance, developed an electric motor that uses significantly less neodymium. Honda pioneered a process to extract rare earths from used nickel-metal hydride batteries. Japan also stockpiled strategic reserves.

The result: when China’s latest restrictions hit, Japan was better positioned than most. Not immune. Better positioned. The lesson is that diversification works, but it requires sustained investment over many years, not panic buying after a crisis erupts.

There’s a deeper strategic question here that goes beyond supply chains. China’s willingness to weaponize its mineral dominance reflects a broader shift in how economic interdependence functions between great powers. For decades, the prevailing assumption in Western capitals was that trade ties would moderate geopolitical competition — the idea that countries deeply enmeshed in each other’s economies wouldn’t risk conflict. That assumption is being tested to destruction.

Beijing views its rare earth dominance as a strategic asset, full stop. Chinese state media has explicitly framed export controls as a response to American tariffs and technology restrictions, particularly the semiconductor export controls that Washington imposed starting in 2022. The logic is straightforward: you restrict our access to advanced chips, we restrict your access to the minerals needed to make them. Tit for tat, with global supply chains as the battlefield.

The market response has been telling. Rare earth stocks have surged. MP Materials saw its share price climb more than 40% in the first quarter of 2025. Lynas Rare Earths posted similar gains. Junior mining companies with rare earth exploration projects — many still years from production — have attracted fresh investor interest. Venture capital is flowing into processing technology startups at rates not seen since the last rare earth crisis in 2010-2011.

But investor enthusiasm shouldn’t be confused with problem-solving. The fundamental math hasn’t changed. Building a mine from discovery to production typically takes 10 to 15 years. Processing facilities require enormous capital expenditure and specialized expertise that exists primarily in China. And the environmental permitting challenges in democratic countries with active civil societies are real, not fabricated obstacles.

Some analysts argue the situation is less dire than it appears. They point out that China’s export controls have so far been targeted, not total. Beijing hasn’t banned all rare earth exports — it has imposed licensing requirements and restrictions on specific products and technologies. The controls are designed to inflict pain and gain negotiating leverage, not to trigger a complete decoupling that would also hurt Chinese producers dependent on export revenue.

That’s true, as far as it goes. But it misses the point. The mere ability to restrict supply is itself a form of power. Western defense planners and corporate strategists must now factor in the possibility — however remote — that China could escalate further. That uncertainty alone changes investment decisions, procurement strategies, and alliance dynamics.

And the escalation risk is real. If the U.S.-China trade war continues to intensify, Beijing has room to tighten controls further. It could restrict exports of processed rare earth magnets — not just raw materials and oxides — which would hit the automotive and defense sectors directly. It could limit technology transfer to joint ventures. It could slow-walk export license approvals, creating bureaucratic delays that function as de facto bans.

The geopolitical implications extend beyond the bilateral U.S.-China relationship. Countries across Southeast Asia, Africa, and Latin America that possess rare earth deposits are suddenly finding themselves courted by competing great powers. The Democratic Republic of Congo, Myanmar, Brazil, Vietnam, and Tanzania all have significant deposits. The scramble for access echoes earlier resource competitions — oil in the 20th century, rubber and tin before that. History doesn’t repeat, but the patterns rhyme.

Myanmar deserves particular attention. It has become a significant source of heavy rare earths — the subset most critical for high-temperature magnets used in defense applications — with most production flowing to Chinese processors just across the border. The mining operations are concentrated in conflict-affected Kachin State, raising serious questions about labor practices, environmental damage, and the funding of armed groups. Western supply chain due diligence requirements make it difficult for American and European companies to source from Myanmar, even indirectly. China faces no such constraints.

So where does this leave the West? In a difficult position, but not a hopeless one. The path forward requires several things simultaneously: accelerated investment in domestic mining and processing, continued research into substitution and recycling, strategic stockpiling of critical materials, and — perhaps most importantly — a willingness to accept trade-offs. Faster permitting means accepting some environmental risk. Higher prices for domestically produced rare earths means accepting higher costs for EVs and defense systems. Diversifying supply chains means building relationships with imperfect partners in imperfect countries.

None of this is comfortable. All of it is necessary.

The rare earth challenge also exposes a broader vulnerability in Western industrial policy. For decades, the prevailing orthodoxy held that it didn’t matter where things were made, as long as they were made efficiently. Comparative advantage would sort everything out. That logic works beautifully in a world of cooperative great-power relations. It works less well when your primary supplier is also your primary strategic adversary.

The recalibration now underway — sometimes called “friendshoring” or “supply chain resilience” — is real but incomplete. Governments are writing checks. Companies are signing offtake agreements. Mines are being permitted. But the gap between aspiration and execution remains vast. China didn’t build its rare earth dominance in a year. The West won’t undo it in a year either.

What’s different this time, compared to the 2010 scare, is the breadth of the threat. Fifteen years ago, the concern was primarily about a handful of materials used in niche applications. Today, rare earths are embedded in the two most important industrial transformations of the 21st century: the energy transition and the AI-driven technology revolution. The quantities needed are growing exponentially. The International Energy Agency projects that demand for rare earths in clean energy technologies alone could increase three- to sevenfold by 2040.

Meeting that demand without Chinese cooperation — or at least without Chinese control — is the defining industrial challenge of the next two decades. It will require money, patience, political will, and a tolerance for imperfection that democratic societies often find difficult to muster. The alternative is continued dependence on a supply chain that Beijing can constrict at will, for reasons that have nothing to do with market fundamentals and everything to do with power.

That’s not a supply chain. It’s a vulnerability. And the clock is ticking.