(Roughly) Daily

Often called “the seeds of technology,” rare earths are a group 17 metallic elements (the 15 lanthanides plus scandium and yttrium) with unique magnetic, optical, and catalytic properties vital for electronics, defense, chemical processing, petroleum refining, and green energy.

China’s dominance over rare earth elements creates an unprecedented vulnerability in global supply chains that extends far beyond the relatively modest $6 billion market size. The risk of disruption in supply of rare earths has become a critical concern as the nation controls 69% of worldwide mining operations, 92% of refining capacity, and a staggering 98% of permanent magnet production, according to Goldman Sachs analysis from October 2025.

This concentration represents one of the most significant single points of failure in modern industrial infrastructure. Furthermore, the rare earth reserves distribution globally shows heavy concentration in geologically limited regions, making supply diversification extremely challenging.

The economic implications of this dominance become clear when considering potential disruption scenarios. Goldman Sachs warns that even a 10% disruption in industries reliant on rare earth elements could trigger $150 billion in lost economic output, alongside inflationary pressures cascading through multiple sectors. Despite rare earth markets being 33 times smaller than copper markets, their strategic importance creates disproportionate systemic risk…

– “China’s Rare Earth Dominance Creates Global Supply Disruption Risks” [source of the image above, and worth reading in full]

Farrell Gregory explains why they figure so prominently in so much discussion of the global economy and of U.S.- China relations and what we might expect…

Over the course of the last year, we’ve seen China suspend rare earth exports twice, generating a short-lived round of public interest and short-lived “expertise” in America. Each crisis followed a similar progression: an aggrieved China introduces export licensing, effectively suspending US access to certain rare earth elements and downstream products. The American public is subjected to alternating shouts of panic and confident assertions that ‘rare’ is a misnomer and the necessary elements are actually abundant in the Earth’s crust. After a period of confrontation, and likely following concessions on both sides, access is reestablished before too much harm is done.

Examining the differences in each crisis is less important than establishing what is quickly becoming a pattern: China is increasingly willing and able to use its dominance in rare earths as leverage against the U.S. It’s worth noting what a change this is from even five years ago: during the entirety of the 2019-2020 U.S.-China trade war, Beijing never introduced export controls for rare earths, despite making threats to do so. Now China assesses its position differently — they’ve accumulated leverage and they’re willing to use it with increasing frequency.

This frequency might be in part because China’s dominant position in rare earths is a time bomb for both sides. The PRC likely wants to use its REE dominance to extract further concessions before the U.S. manages to defuse this dominance with some combination of reshoring and tech advances.

I think it’s a matter of when — not whether — China decides to activate its standing export control infrastructure. They’ve built up leverage, and over time, that leverage will dissipate. In the near-term future, throttling rare earth and magnet exports is still an effective threat to employ in trade disputes with the U.S. In the medium term, successful reshoring and reliance-decreasing efforts will diminish what concessions China can extract from the U.S.

So, expect the rare earth crisis cycle to play out again. When it does, here are a few clarifications on rare earths that may prove helpful for avoiding the most common misperceptions…

Read on: “China’s Rare Earths Chokehold: A Primer,” from @chinatalk.skystack.xyz.

See also: “Rare Earths,” from @profgalloway.com.

And also this: “China Is Overplaying Its Rare-Earth Hand in Japan” from @bloomberg.com (gift article).

* attributed to Deng Xiaoping

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As we ponder paucity, we might recall that it was on this date in 1839 that the British East India Company [see here and here] established the Assam Tea Company and began the commercial production of tea (grown from slips furtively exported from China) in the region. Beginning in the 1850s, the tea industry rapidly expanded, consuming vast tracts of land for tea plantations. By the turn of the century, Assam became the leading tea-producing region in the world. That growth and innovations in tea preparation caused the price of tea to drop and demand to grow. Soon, London became the center of the international tea trade.

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