Half of the world's rare earth reserves sit outside China's borders. Almost none of the industrial capacity to process them does. That gap — between where the ore is found and where it gets turned into something a factory can actually use — is the case file this episode is built around. China holds roughly 50 percent of global reserves, but around 90 percent of global processing, 91 percent of separation capacity, and 94 percent of the permanent magnets that go into EV motors and wind turbines. For heavy rare earths like dysprosium and terbium, the share of Chinese separation capacity approaches 99 percent. The chokepoint is not geological — it's industrial and chemical, built over three decades of state investment, and it sits in the midstream, not the mine.

The episode weighs two competing readings: permanent structural chokepoint versus transitional industrial lead that erodes with enough capital and time. The evidence currently favours the first. Closing the non-Chinese processing gap is estimated to require over 100 billion dollars in capital by 2035 — against roughly 5 billion currently committed. Meanwhile, China's export-control architecture has been expanding steadily since 2023, growing more granular and extraterritorial with each iteration, explicitly mirroring the logic of US semiconductor restrictions. The October 2025 rules extended Chinese licensing jurisdiction to foreign manufacturers using Chinese refining technology — meaning supply-chain diversification may not mean what companies think it means. We close with four things that would genuinely move the needle, including the November 2026 expiry of a partial suspension agreed ahead of the Trump-Xi summit, and what to watch in non-Chinese midstream investment pipelines.

REFERENCES

• China Tungsten Industry Association (CTIA) — "World Rare Earth Reserves Data." https://www.ctia.com.cn/en/news/37559.html
• CEIC Data — "China's Dominance of the Rare Earths Industry." https://info.ceicdata.com/ceic-article-chinas-dominance-of-the-rare-earths-industry
• Mining Technology — "China Global Rare Earth Production." https://www.mining-technology.com/analyst-comment/china-global-rare-earth-production/
• Wikipedia — "Rare-earth industry in China." https://en.wikipedia.org/wiki/Rare-earth_industry_in_China
• Discovery Alert / LinkedIn — Rare Earth Processing Analysis. https://www.linkedin.com/posts/discovery-alert-australia_china-controls-85-90-of-global-rare-earth-activity-7412325569192710144-J_eF
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• Skillings Mining Review — "China's Export Controls: What's Next for Rare Earths, Gallium and Germanium." https://skillings.net/chinas-export-controls-whats-next-for-rare-earths-gallium-and-germanium-supply-chains/
• CSIS — "Consequences of China's New Rare Earths Export Restrictions." https://www.csis.org/analysis/consequences-chinas-new-rare-earths-export-restrictions
• US Trade Representative — "US Wins Victory in Rare Earths Dispute with China." https://ustr.gov/about-us/policy-offices/press-office/press-releases/2014/March/US-wins-victory-in-rare-earths-dispute-with-China
• USGS — Mineral Commodity Summaries, Rare Earths. https://pubs.usgs.gov/periodicals/mcs2025/mcs2025-rare-earths.pdf