Sanae Takaichi spoke for less than a minute in Japan’s parliament. China spent the next two months making sure she would remember it.
In November 2025, Japan’s prime minister told lawmakers that a Chinese attack on Taiwan could prompt a military response from Tokyo. It was the kind of statement Japanese leaders had spent decades avoiding. Beijing did not respond with a diplomatic note. It responded with paperwork. On January 6, 2026, China’s Ministry of Commerce announced tighter export controls on dual-use goods bound for Japan, including seven medium and heavy rare earth elements and the magnets made from them. Two days later, the Wall Street Journal reported that some Japanese firms had already stopped receiving shipments entirely.
This is the story of China’s rare earth export controls, and why a country most people couldn’t find on a periodic table chart has become the single point of failure for the modern industrial world.
The Ninety Percent That Runs Everything
Rare earths are not actually rare. Cerium and neodymium sit in the earth’s crust in greater concentrations than gold or silver. What is rare is the ability to turn raw ore into something usable, separating seventeen chemically similar elements from each other through a process that is expensive, toxic, and takes years to permit in most democracies.
China figured this out starting in the 1980s, while Western governments treated the entire sector as a niche commodity business not worth subsidizing. The result, according to the International Energy Agency, is that China now serves as the leading refiner for nineteen of the twenty strategic minerals the agency tracks, with an average processing share of around 75 percent. For rare earths specifically, the concentration runs even higher. The IEA’s broader analysis of processing concentration across strategic minerals puts China’s control of the downstream rare earth value chain, covering separation, metal refining, and magnet production, at more than 90 percent. On two elements in particular, dysprosium and terbium, China holds something close to a monopoly on separation. Those two elements are what allow permanent magnets to survive the heat generated inside an F-35 actuator or a submarine propulsion motor.
So when people say China controls 90 percent of rare earth processing, they are not exaggerating for effect. They are describing a chokepoint that took roughly forty years to build and that no other country has matched.
What Actually Happened in January
The April 2025 export control framework had already required Chinese exporters to obtain licenses for seven rare earth elements headed anywhere in the world. Then came October, when Beijing expanded the list to cover all heavy rare earth elements and added extraterritorial provisions reaching products made overseas with Chinese-sourced material. That version was suspended within a month, part of a deal struck after a meeting between Xi Jinping and Donald Trump. The April controls stayed in place.
January 2026 added a second layer, and this one had a name attached to it. The new catalogue, effective January 1, folded rare earth compounds including samarium, gadolinium, and lutetium, into the licensing regime. Five days later came the Japan-specific measure. Unlike the broader controls, this one was explicitly tied to military end use and explicitly tied to a country that had just said something Beijing did not like.
The trade numbers from the months leading up to January tell their own story. China’s exports of rare earth magnets to Japan fell from 305 metric tons in November 2025 to 280 tons in December, a drop of roughly 8 percent in a single month, according to data from China’s General Administration of Customs reported by Reuters. Analysts attributed part of that swing to Japanese manufacturers’ stockpiling ahead of an expected restriction. They were right to stockpile. Shipments in January, after the dual-use ban took effect, fell further still.
Japan was a particularly exposed target. China supplied roughly 80 percent of Japan’s rare earth imports and about a third of its rare earth permanent magnet imports heading into 2026. Companies like Proterial and Shin-Etsu, which together produce thousands of tons of sintered magnets a year for Toyota, Honda, Nissan, Subaru, and Suzuki, suddenly faced a licensing process with no guaranteed timeline. For an industry that runs on three to six-month forward contracts, an open-ended customs delay is not an inconvenience. It is a production schedule with a hole in it.
The Number That Should Worry Washington More Than Tokyo
If Japan got the sharper jab, the United States got the longer warning. Yttrium, a heavy rare earth used as a thermal coating on jet engines to keep them from melting under combustion temperatures, is a useful case study because the trade data is unusually granular. According to trade data tracked by Washington analysts month by month, China exported just 17 tons of yttrium to the United States across the eight months from April through December 2025. In the eight months before the controls began, that figure was 333 tons. That is a decline of roughly 95 percent.
By February 2026, exports had ticked up to 20 tons for the month, a sign that some licenses were finally being approved. It was still far below the more than 66 tons China exported to the US in a single month, January 2025, before any of this started. Aerospace manufacturers told researchers they were rationing the material and warned that prolonged shortages could force production pauses on certain components.
According to the United States government’s own accounting of mineral import dependence, the US relies on imports for 80 percent of its rare earth compounds and metals, and 56 percent of that supply has historically come from China. For yttrium alone, US import reliance sits at 100 percent, with 93 percent of that coming from China. These are not numbers that change in a quarter. They are numbers that took decades to accumulate, one shuttered domestic refinery, and one cancelled mining permit at a time.
The Case China Would Make, and Why It Isn’t Crazy
Here is the part that gets left out of most coverage. China’s position, stated repeatedly by its commerce ministry, is that these are not blanket bans. They are licensing requirements, the same tool the United States has used for years to control exports of advanced semiconductors and the equipment that makes them. Beijing points out that it has continued issuing general licenses to many exporters, that the most aggressive October 2025 measures were voluntarily suspended for a year, and that the April framework targets only seven specific elements with documented military applications, not the entire rare earth trade.
There is also a less comfortable truth for Western governments buried in this argument. The 2014 WTO ruling against China’s rare earth export quotas was supposed to be a turning point. Japan, after the 2010 dispute, cut its dependence on Chinese rare earths from over 90 percent to under 60 percent within two years, largely by investing in a major rare earth producer in Australia. But that progress stalled. Decades of cheap Chinese supply made it economically irrational for anyone else to build refining capacity, and government subsidies in the US and Europe arrived in dribs and drabs rather than as the kind of sustained, decades-long industrial policy China itself used to get here. If the West is now angry about dependency, China’s argument is simple. Nobody forced anyone to stay dependent, and there were forty years to do something about it.
That argument does not make the timing of the January measures, arriving five days after a politically inconvenient statement from a foreign leader, look any less deliberate. But it does explain why China believes it is operating within its rights, and why a complaint to international trade bodies is unlikely to produce a fast resolution.
The Twenty-Year Hole Nobody Wants to Admit Exists
Multi-institutional analysis covering the 2025-2026 controls has reached a blunt conclusion. More than 80 percent of European companies depend on Chinese supply chains for critical minerals essential to defense, electric vehicles, and renewable energy, and building independent alternatives would take an estimated 20 to 30 years. That timeline is not a typo. Refining capacity requires permits, environmental reviews, trained metallurgists, and customers willing to sign offtake agreements at prices high enough to justify the investment, none of which can be conjured in a single presidential term or a single EU funding cycle.
Some of that mismatch is already playing out in how clean energy supply chains are being forced to rethink sourcing entirely, a strain that extends well beyond rare earths into batteries, solar components, and grid equipment, as the pressure building across clean tech supply chains makes clear. Japan’s response illustrates both the urgency and the limits of trying to catch up. Tokyo is now funding deep-sea rare earth extraction tests near Minamitori Island at depths of roughly 6,000 meters, a project that began in January 2026. It is also leaning harder on Vietnam, which itself banned the export of unprocessed rare earths effective January 1, 2026, partly to force more processing onshore. Neither move will produce meaningful tonnage for years.
The United States, for its part, has leaned on the same playbook it used for chip manufacturing. Subsidies, a critical minerals stockpile initiative announced earlier this year, and a government stake in the Mountain Pass mine in California, the only rare earth mining and partial processing operation of scale in the country. Mountain Pass alone cannot replace what China supplies. Nothing currently under construction anywhere outside China can, not at the volumes modern manufacturing requires.
What This Actually Costs
Price data from the past year gives a sense of what leverage means in practical terms. Rare earth prices outside China have spiked as much as sixfold during periods of restriction, and licensing approval rates for European firms in some sectors fell below 25 percent. Antimony, a separate but related critical mineral also subject to Chinese export controls, saw prices rise 144 percent in 2025 alone. These are not abstract commodity fluctuations. They show up as delayed EV production lines, more expensive wind turbines, and defense contractors quietly extending delivery timelines on systems that depend on a handful of magnets nobody outside a supply chain office has ever heard of.
It is worth connecting this to the broader picture of industrial reshuffling underway. American manufacturers are already navigating a landscape reshaped by tariffs, rewriting the rules for the country’s industrial base, and rare earth licensing delays add another variable to factory floor planning that companies were not budgeting for two years ago. Meanwhile, the same minerals sit at the center of weapons systems just as European defense budgets climb to levels not seen since the Cold War, creating a collision between rearmament plans and the supply chains those plans quietly depend on.
The Reminder
Sanae Takaichi’s comment to parliament cost Japan nothing at the moment. It was a sentence about hypotheticals, the kind of statement diplomats spend careers walking back. China did not let her walk it back. It answered with a customs form, and customs forms do not negotiate.
Ninety percent control of rare earth processing is not a statistic anymore. It is a sentence, finished by someone else.
