In a significant escalation of geopolitical tensions, China has imposed strict export controls on rare earth materials and other “dual-use” goods bound for Japanese companies. The move underscores Beijing’s strategic use of economic levers in the face of growing regional security concerns.
Immediate Restrictions on Key Firms
On February 20, China’s Ministry of Commerce announced that 20 Japanese companies—among them affiliates of Mitsubishi Heavy Industries, Kawasaki Heavy, IHI Group, NEC, Subaru, and Hino Motors—will be barred from importing critical dual-use materials. An additional 20 companies, including electronics giant TDK, were added to a watch list and will now face delays and conditional reviews for future imports.
These materials include:
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Rare earth magnets
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Gallium
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Germanium
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Graphite
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Antimony
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Battery-grade materials
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Advanced machinery and tools
Many of these components are foundational to Japan’s automotive, electronics, and defense sectors.
The Economic Impact Is Immediate
Japanese equity markets reacted swiftly.
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NEC shares dropped over 6%
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IHI Group fell by 5.7%
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Kawasaki Heavy declined by 4%
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Subaru and MHI both fell by around 3–3.5%
For a country where more than 90% of rare earth imports come from China, the disruption to supply chains could have lasting effects—especially in sectors like automotive manufacturing and advanced electronics.
Subaru and Hino, for example, both produce defense-grade vehicles, but their civilian lines—including cars, trucks, and aircraft components—could suffer severe ripple effects if raw material supplies falter.
Strategic Motive Behind Economic Coercion
This trade maneuver comes against a backdrop of increasing diplomatic strain. Following recent political statements from Japan’s newly elected Prime Minister Sanae Takaichi, who warned of a potential “existential threat” from a Chinese invasion of Taiwan, China’s leadership has hardened its position. At the Munich Security Conference, Foreign Minister Wang Yi accused Japan of harboring “colonial ambitions” regarding Taiwan—a reference to its pre-1945 occupation of the island.
In response, Beijing aims to suppress what it labels as Japan’s “remilitarization” by choking off access to dual-use goods. The logic is clear: limit Japan’s strategic capabilities through economic levers, while sending a strong message to the global community about China’s dominance in critical mineral supply chains.
The Global Supply Chain at Risk
The implications go far beyond Japan.
Rare earth magnets are essential to the production of:
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EV motors
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Wind turbines
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Smartphones
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Aerospace systems
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Missile guidance systems
Global automakers, many of whom rely heavily on Japanese suppliers, are now bracing for downstream disruption. During a recent earnings call, Honda’s vice-president noted the “extreme significance” of potential supply disruptions and flagged a “highly uncertain” outlook.
In 2022, China accounted for:
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Over 70% of global rare earth production
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94% of rare earth magnet exports
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Nearly 100% of global gallium production
With Japan being a major technology and automotive exporter, the fallout could quickly cascade into the US, EU, and Southeast Asia.
Strategic Outlook: A “Moment of Truth”
Japanese companies, academics, and policymakers see this as a turning point. According to the University of Tokyo’s Economic Security Intelligence Lab, many Japanese firms have already formed dedicated economic security units to mitigate supply chain risk. Now, those preparations will be put to the test.
China’s decision could spur a surge in efforts to diversify away from Chinese rare earths. Japan, for instance, is ramping up extraction efforts in the Pacific seabed, where large deposits of rare earth minerals have been discovered. However, scaling such efforts will take years.
Meanwhile, India, Vietnam, and Australia may become key alternative suppliers, though infrastructure and output volumes remain limited.
What Comes Next?
This move by Beijing is a calculated test of Japan’s economic resilience and the international community’s dependency on Chinese materials. If similar restrictions are extended to South Korea, Taiwan, or EU countries, the world could face a far more fragmented and competitive era in strategic materials sourcing.
In the short term, Japanese firms may look to increase inventories, diversify procurement channels, and lobby for international support. But for now, the balance of power in this economic standoff remains firmly with Beijing.