In late May 2026, China's selective re-activation of rare earth export controls against Japan drew immediate parallels to the Senkaku Islands crisis of 2010, when Beijing first demonstrated its willingness to weaponise mineral access for diplomatic ends. But this time, the episode did not merely unsettle Tokyo. It landed in the middle of a widening internal clash between the Pentagon and the White House over whether America's own rare earth strategy is built on solid industrial ground or political ambition.
Introduction
On the evening of May 22, the executives running Japan's rare earth supply chains were not watching the diplomatic choreography unfolding in Suzhou with academic detachment. They were counting months. For roughly four months by that point, dysprosium, terbium, yttrium oxide, and gallium had effectively stopped flowing from Chinese suppliers to Japanese buyers. Chinese customs data confirmed what industry insiders already knew from empty order queues: the taps had been turned, not all the way off, but far enough to sting.
The setting of the ministerial encounter, a dinner on the sidelines of the Asia-Pacific Economic Cooperation meeting in Suzhou, was itself a kind of theatre. Japan's Trade Minister Ryosei Akazawa, the most senior Japanese official to visit China since the diplomatic dispute erupted the previous November, approached Commerce Minister Wang Wentao before the meal began. He acknowledged the conversation existed. He declined to say what was said. "I could not disclose details because it was a diplomatic exchange," Akazawa told reporters the following morning. Outside the room, separately, he called on exporting economies to end what he described as arbitrary export controls on rare earths, because they could "severely impact global supply chains" and were inconsistent with international practices. He did not name China. He did not need to.
One day earlier, five thousand miles away in Washington, a story broke that reframed the Suzhou dinner entirely. The Pentagon, it emerged, was weighing whether to scrap an eighty-million-dollar conditional loan to rare earths refiner ReElement Technologies, a cornerstone of what the Trump administration had heralded as a landmark domestic minerals deal. Within hours, Peter Navarro, the White House senior counsellor for trade and manufacturing, was on the phone to Bloomberg, not to deny the story but to attack the Pentagon's own due diligence team. Two crises, two capitals, one underlying truth: despite years of rhetoric, warnings, and investment pledges, China still holds the keys.
The Weapon, Reloaded
The 2010 episode between China and Japan has achieved something close to mythological status in critical minerals policy circles. A Chinese fishing trawler collided with Japanese Coast Guard vessels near the disputed Senkaku and Diaoyu Islands. Japan detained the captain. Beijing demanded his release. When diplomacy stalled, rare earth export approvals slowed, and in practice, shipments to Japan were halted. The episode, brief and never formally acknowledged by Beijing as a deliberate act of coercion, nevertheless reshaped Japanese industrial policy for the better part of a decade and planted a foundational anxiety in the minds of policymakers across the Western world.
What happened in late 2025 and into 2026 followed a recognisable pattern, but with more institutional precision. On November 7, 2025, Japanese Prime Minister Sanae Takaichi said that a hypothetical attack on Taiwan could constitute an existential threat warranting a military response under Japan's pacifist constitution. Beijing, which publicly linked its subsequent measures to what it characterised as Japanese provocations, demanded a retraction. Tokyo refused. On January 6, 2026, China's Ministry of Commerce issued Announcement No. 1, prohibiting the export of all dual-use items to Japan for military end users, military purposes, and any other end uses deemed to enhance Japan's military capabilities. The list of controlled materials ran to more than a thousand items. Among them: seven medium and heavy rare earth elements, including samarium, gadolinium, terbium, and dysprosium, along with any products containing them, including rare earth permanent magnets.
The restrictions tightened again in February, twice. And yet, in a detail that the InvestorNews Critical Minerals Institute flagged as strategically significant in its May 22 weekly report, finished rare earth magnets continued flowing to Japan's automotive industry at roughly normal volumes throughout the same period. Raw material flows were cut off; finished component exports were maintained. The CMI's analysis was unsparing: the asymmetry was deliberate. By strangling upstream supply while preserving downstream sales, Beijing was simultaneously pressuring Japan's domestic processing sector and reinforcing the commercial logic of sourcing completed magnets directly from China rather than building the capability to process them at home. The goal, in other words, was not scarcity but dependency.
Alastair Neill, a director at the CMI, put the broader point plainly: rare earths remain on the institute's top-five list of critical concerns not because of what they are but because of who controls them, particularly downstream, in magnet production. China mines roughly sixty percent of global rare earth output, but it is the refining and processing stages where the leverage concentrates. China accounts for approximately ninety-one percent of global rare earth separation and processing, and an estimated ninety-four percent of the rare earth magnets used in clean energy and electric vehicle applications worldwide. For the heavy rare earths, dysprosium and terbium above all, the figure approaches near-totality: some estimates place China's share of dysprosium production at ninety-eight percent. Japan, which sourced eighty percent of its rare earth imports from China before the dispute, had no credible alternative pipeline into which to plug.
The Scale of the Alternative
The most frequently cited counterargument to Chinese dominance is Lynas Rare Earths, the Australian company in which Japan has invested and which became the first commercial producer of separated terbium and dysprosium outside China. In the first quarter of 2026, Lynas produced approximately eight metric tonnes of combined dysprosium and terbium. China was exporting roughly fourteen metric tonnes per month of the same two materials to Japan alone in 2024. The arithmetic is not encouraging. Even at its current production rate, Lynas could replace less than two months of Japan's pre-restriction monthly heavy rare earth imports in an entire quarter of output.
Japan is not standing still. In January 2026, the government began deep-sea mining tests in the Pacific Ocean near Minamitori Island, targeting deposits at depths of around six thousand metres. Proterial, one of the country's major magnet manufacturers, announced a new production line of dysprosium and terbium-free magnets in 2025 and is scaling that capacity through 2026. TDK publicly stated it does not anticipate major short-term impact and is diversifying sources. Mitsubishi Motors indicated in February that it had secured rare earth supplies through mid-year.
But as Gracelin Baskaran, who directs the Critical Minerals Security Program at the Center for Strategic and International Studies, noted with characteristic precision: "The U.S. still has to tread carefully in its relationship with China to avoid those disruptions, given how long it takes to transform rare-earth announcements, funding, and partnerships into actual supply." The observation applies with equal force to Japan. Mid-year supply security is not the same as structural resilience. Tomasz Nadrowski, a critical minerals investor and author of the book "Mineral War," noted that Chinese officials avoided meetings with their Japanese counterparts at an Asian Development Bank summit in Kazakhstan in March, a signal that the diplomatic freeze had not thawed despite quiet efforts on Tokyo's side. The Suzhou conversation between Akazawa and Wang, brief and undisclosed as it was, represented the first ministerial contact between the two sides since the dispute ignited. It was a beginning, not a resolution.
Baskaran and her CSIS colleague Meredith Schwartz drew the wider strategic lesson directly: "Now is the time for Washington to work with partners to establish shared contingency planning, mutual support mechanisms, and clear signalling around economic coercion, so that export controls do not fracture allied unity as tension heats up in the Indo-Pacific." The Japan episode, they implied, was a preview, not a one-off.
The Fault Line Inside Washington
The internal crisis that broke in Washington the day before the Suzhou dinner began not with a diplomatic cable but with a due diligence report. The Pentagon's Office of Strategic Capital, the unit tasked with channelling defence-related investment into critical industrial sectors, had in November 2025 announced a conditional loan agreement with ReElement Technologies as part of a broader one-point-four-billion-dollar critical minerals package that also included Vulcan Elements Inc. The structure was presented as a vertically integrated domestic supply chain: ReElement would produce high-purity rare earth oxides from electronic waste and decommissioned magnets, and Vulcan would convert those oxides into finished rare earth magnets for defence and commercial applications. The combined output target was stated as up to ten thousand metric tons of magnet materials over several years. The State Department, at a critical minerals summit in February, touted how the deal had crowded in an additional two hundred million dollars in private funding for ReElement, a reference to the company's January agreement with Transition Equity Partners.
Since November, however, Pentagon officials vetting ReElement had raised doubts, according to people familiar with the process, about the company's ability to scale its technology and about the long-term credibility of its revenue forecasts. No money had yet been disbursed. The loan had not been cancelled. But the conditional agreement was in limbo, and the questions being asked inside the Office of Strategic Capital were the kind that tend not to resolve quickly.
Peter Navarro did not wait for them to resolve. Shortly after Bloomberg News contacted ReElement for comment, Navarro reached out independently to criticise the Pentagon's handling of the deal. "The due diligence cops within OSC with a private equity background have no experience how to manage a crisis at warp speed," he said. "Their over-burdensome due diligence disproportionately penalises small innovative emerging companies. ReElement represents exactly the kind of asymmetric bet we should be making." The Pentagon spokesman, Sean Parnell, responded by describing the OSC team as "the finest private equity dealmakers in the world, professionals whose unmatched expertise and qualifications stand second to none." The programme is overseen by Deputy Defence Secretary Stephen Feinberg, co-founder of Cerberus Capital Management.
The clash was ugly enough on its face. But the Vulcan side of the one-point-four-billion-dollar package added a dimension that complicated the administration's position considerably. Vulcan Elements, a three-year-old start-up founded by a Harvard Business School student and planning to build what would be the largest rare-earth magnet factory outside China, in Johnston County, North Carolina, had in August 2025 received an investment from 1789 Capital, the venture fund where Donald Trump Jr. is a partner, as part of a sixty-five-million-dollar Series A round. The company was valued at roughly two hundred million dollars at the time. Three months later, the federal government committed six hundred and seventy million dollars to it, including a six-hundred-and-twenty-million-dollar conditional Pentagon loan with warrants. By January 2026, investors were reportedly eyeing a valuation approaching two billion dollars. A ProPublica investigation reported that the push to fund Vulcan came directly from Navarro, who directed Pentagon staff to close the deal in weeks rather than months. "The call came from the White House: We have to get this done," one defence official told ProPublica. The White House denied any political favouritism, describing the process as entirely merit-based.
The Suspension That Does Not Suspend Everything
Underneath the Washington infighting ran a structural issue that the ReElement controversy, whatever its ultimate resolution, could not address: the legal architecture undergirding China's export control system remains largely intact even during the current diplomatic truce. As I reported in analysing State Council Order No. 834 in June 2026, Beijing's decision to codify its mineral controls under a permanent national-security mandate means the underlying framework does not depend on any particular diplomatic episode to survive. It is designed to outlast the politics.
The specific contours of the current truce matter here. When U.S. and Chinese negotiators met in Geneva and subsequently when Trump visited Beijing in May, the deal that emerged suspended the sweeping export controls announced by MOFCOM on October 9, 2025, for one year, until November 10, 2026. The White House fact sheet stated the deal included Chinese commitments to effectively eliminate current and proposed export controls on rare earth elements and other critical minerals. What it did not suspend, and what received comparatively little attention in the subsequent triumphalism, were the April 2025 controls: the restrictions on seven heavy rare earth elements, dysprosium, terbium, samarium, gadolinium, lutetium, and others, along with their derivative products. Those controls remained in place, operating through a licensing regime that CSIS research published in May 2026 documented with uncomfortable clarity. Yttrium exports to the United States fell from over three hundred and thirty-three metric tons in the eight months before the April restrictions to just seventeen metric tons in the eight months after. Aerospace manufacturers reported shortages and rationing of a material critical for turbine blade coatings.
U.S. Trade Representative Jamieson Greer told CNBC in mid-May that rare earth imports had increased to better levels, albeit at a slower pace than desired, and expressed a willingness on both sides to extend the truce. Trump left Beijing on May 16 without a confirmed rare earth agreement, describing the visit as a success without specifying what, concretely, had been secured. Heidi Crebo-Rediker, senior fellow at the Council on Foreign Relations, offered the clearest assessment of the baseline situation: "The U.S. and its allies cannot out-mine, out-process or outspend China quickly enough to rebuild resilience in the near term." The best-case outcome, she said, was simply extending the existing agreement.
And yet, as the Japan case demonstrated with painful clarity, the October 2025 suspension, even if extended in November, would not protect U.S. allies from selective reactivation of the older April 2025 controls. Those tools, covering more than a thousand dual-use items including rare earth elements, are already deployed against Tokyo. The threshold for triggering them, analysts noted in May, appeared to be falling as Beijing grew more comfortable with the instrument. Multi-institutional analysis placed Chinese licensing approval rates for controlled items below twenty-five percent, even as six-fold price spikes for certain materials rippled through downstream markets. The weapon, as the CMI characterised it, was not a blunt instrument but a calibrated one: temporary, reversible, and precisely designed to maintain pressure without provoking the scale of Western alternative investment that a permanent cutoff might generate. Jack Lifton, CMI co-chair, framed the competitive landscape in terms that brooked little optimism: "It's every nation for itself."
Adding another deadline to the already crowded calendar: beginning January 1, 2027, the DFARS Rule 252.225-7052 will prohibit Department of Defense contractors from supplying systems containing rare earth permanent magnets, including neodymium-iron-boron and samarium-cobalt types, if the materials were mined, refined, separated, melted, or manufactured in China. The rule reaches across the full magnet production process and affects an estimated seventy-eight percent of Pentagon weapons programmes. An F-35 contains around nine hundred and twenty pounds of rare earth elements; a Virginia-class submarine, roughly nine thousand two hundred pounds. With ninety-eight to ninety-nine percent of global heavy rare earth processing happening in China today, defence contractors in May were already clamouring for a delay, reported the Financial Times, even as Navarro was publicly attacking the Pentagon's due diligence capacity for being too cautious about a deal meant to address that very problem.
Conclusion: The Same Room, Sixteen Years Later
When Ryosei Akazawa walked across the room at an APEC dinner in Suzhou to say a few words to Wang Wentao, he was, in a real sense, reprising a moment that Japanese trade officials have been dreading since 2010. The specific grievance had changed, the diplomatic precipitant was Taiwan rather than a fishing trawler, and the institutional architecture behind Beijing's leverage was considerably more sophisticated. But the essential geometry was identical: a mineral-dependent nation, unable to absorb the full costs of a cutoff, approaching the controller of the supply it needed, trying to find language that preserved dignity without fully capitulating. Akazawa emerged and said that Japan's policy of seeking strategic and mutually beneficial ties with China remained unchanged. It was the only thing he could say.
The Washington chaos unfolding simultaneously was, in its own way, the American version of the same geometry. A White House pushing deals at warp speed; a Pentagon trying to apply scrutiny to companies that may not yet be ready for the scale of public investment attached to them; a start-up valued at two billion dollars on the strength of government commitments and a well-connected backer; and an internal argument conducted loudly in public, in the middle of a crisis, about whether the people running the money know what they are doing. Mick McMullen, the veteran mining executive, had summarised the underlying power relationship in March without embellishment: "Clearly, China is the leader, and the U.S. is far behind."
The November 2026 expiry of the truce covering the October 2025 controls sits on every serious analyst's calendar now like a hard stop. The IEA has estimated that a full reimplementation of suspended controls could put six-and-a-half trillion dollars in annual global economic activity at risk. The automotive sector alone faces potential direct losses exceeding three trillion dollars outside China. Against those numbers, an eighty-million-dollar conditional loan in dispute, a magnet factory in North Carolina that does not yet exist, and a brief pre-dinner conversation in Suzhou represent the current state of Western resilience.
As one analyst put it in research notes circulating through the minerals community this week, China's strategy is not to create scarcity but to maintain it just short of the level that would force a decisive Western response. The weapon stays cocked. The deadline keeps moving. And in Tokyo and Washington alike, the margin between managing the problem and being managed by it grows a little thinner with each passing month.