The Invisible War Over Rare Earth Metals

Rare earth elements are a group of 17 metals on the periodic table that share similar chemical properties. Despite the name, most of them are not particularly rare in the earth's crust — the problem is that they almost never occur in concentrated deposits that make mining economical, and refining them into usable form is an extraordinarily complex, capital-intensive, and environmentally demanding process.

They also happen to be irreplaceable components in some of the most critical technologies of the modern era. The permanent magnets made from neodymium, dysprosium, and terbium power the electric motors in EVs, the actuators in F-35 fighter jets, the drive systems in wind turbines, and the cooling fans in data centers. Europium and terbium are used in display screens. Yttrium is essential in certain high-temperature ceramics. Lanthanum and cerium are used in catalytic converters and optical lenses. The list goes on.

The point is not that any single rare earth element is miraculous in isolation — it's that they are embedded in the supply chain of virtually every advanced technology sector simultaneously.

Here is the central fact that underpins everything else in this story: China mines approximately 60-70% of global rare earth production, processes over 90% of global refining and manufacturing capacity, and produces roughly 90% of the world's high-performance rare earth permanent magnets. For certain heavy rare earth elements like dysprosium and terbium — the ones used in the highest-performance applications — China holds what is effectively a monopoly.

This didn't happen by accident. Since the 1980s, China made decades-long, government-directed investments in rare earth mining, processing technology, and infrastructure. While Western companies and governments were largely focused on other priorities, China was systematically building the expertise and infrastructure to own this supply chain end to end. The processing technology is particularly consequential — even countries with rare earth deposits in the ground cannot easily convert those deposits into usable materials without access to Chinese processing expertise.

The U.S. has exactly one operational rare earth mine of significance: the Mountain Pass mine in California, owned by MP Materials. It is, in an illustration of just how deep the dependency runs, 7.7% owned by China's Shenghe Resources. The U.S. currently has no heavy rare earth refining capacity of its own.

The geopolitical stakes became impossible to ignore in April 2025, when China imposed sweeping export controls on seven heavy rare earth elements — including terbium, dysprosium, samarium, and yttrium — alongside restrictions on related oxides, alloys, compounds, and permanent magnet technologies. The move was framed as a national security measure, but the timing — directly following the Trump administration's tariff escalation — made the strategic intent clear.

The effect was immediate. China's global exports of rare earth magnets plunged 74% year over year in May 2025. Key industries in the automotive, electronics, and defense sectors found themselves scrambling. Ford temporarily paused production of certain vehicle models due to rare earth magnet shortages. Defense contractors who build systems dependent on these materials — from radar systems to missile actuators — began urgently seeking alternative supply chains that, for most applications, did not yet exist at meaningful scale.

China later suspended some of these controls as part of a broader tariff truce in late 2025. But the message had been received: the export controls demonstrated that Beijing could, if it chose to, effectively halt production of advanced defense systems and clean energy technologies in adversary nations with a single policy decision.

In early 2026, China imposed new controls targeting dual-use items heading to Japan — one of the few countries outside China with any meaningful rare earth magnet production capacity. The ripple effects of restricting Japan's access extend further, since Japan is a key node in the global supply chain for companies that have been trying to diversify away from direct Chinese sourcing.

The instinct after a supply shock is to build domestic alternatives. In practice, rare earth supply chain development is one of the hardest infrastructure challenges in the world.

Mine development alone takes a decade or more, from discovery to production. Processing technology requires specialized expertise that currently sits almost entirely inside China. Magnet manufacturing is another distinct step requiring its own facilities and knowledge base. The full "mine to magnet" supply chain — extracting ore, separating elements, refining to metal, and manufacturing finished magnets — involves multiple countries, multiple technologies, and multi-billion-dollar capital commitments at each stage.

As of 2026, the ex-China supply of heavy rare earth elements — particularly dysprosium and terbium — is expected to remain severely constrained through at least 2027, as alternative suppliers complete facilities and begin commissioning. In the interim, heavy rare earth elements from non-Chinese sources are commanding prices three to four times the Chinese quoted price — a premium that reflects both scarcity and the willingness of governments and companies to pay for supply chain security.

The U.S. government has moved aggressively, if belatedly, to address the vulnerability. The Department of Defense has invested over $439 million in domestic rare earth capacity over the past five years. In October 2025, the Trump administration announced a $1.4 billion public-private partnership with Vulcan Elements and ReElement Technologies to build neodymium-iron-boron magnet production capacity in the U.S. The U.S. and Australia reached a framework agreement to expand heavy rare earth investments. The U.S. and Malaysia signed a memorandum of understanding on technical cooperation — Malaysia is currently home to the only operational heavy rare earth supply chain outside China.

The EU's Critical Raw Materials Act mandates 15% domestic processing of strategic materials by 2030. The UK, Japan, and other allied nations are making similar investments. But industry experts are candid about the timelines: building a fully independent Western rare earth supply chain is a decade-long project at minimum, and even optimistic scenarios leave the world reliant on Chinese processing capacity for much of the 2020s.

For investors, the rare earth situation represents a genuine, structurally driven demand for a new supply chain — funded significantly by government policy rather than pure market forces. Companies positioned at the processing and magnet manufacturing layer of the supply chain, in Western jurisdictions, with government backing and contracted revenue, are in an interesting position. The pricing premium for non-Chinese heavy rare earths creates economics that simply did not exist three years ago.

The broader takeaway is that critical mineral supply chain security has become a national security issue, not just a commercial one — and that changes the risk calculus for investment in a sector that was previously considered too speculative for most portfolios.

Educational content only. Not financial advice. Brezco Analytics is an independent research and media platform.

Sources: