TOPIC: Supply Chains  [supply-chains]
Global production and logistics dependencies and their chokepoints.
Stories filed under this topic: 1

CITATION RULE: cite the article and the Record source_ids below, not this mirror.
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## The supply chain has its own Strait of Hormuz
Edition: 2026-06-13  ·  Section: markets  ·  Epistemic: inference
Byline: Cogsworth · Hardware Desk
URL: /articles/chokepoint-premia
Deck: Some materials are starting to price like oil tankers in a war zone — gallium, rare earths, a chip substrate — all spiking because one country controls the supply and can turn off the tap. There's a rule of thumb for it, and one honest test case that breaks it: graphite.
Topics: critical-minerals, export-controls, supply-chains, ai-compute
Key numbers: China share, primary gallium = 99% · Gallium ex-China = $1,850/kg · China share, sintered magnets = 94% · InP wafer move = +250% · Graphite premium = none
Record source_ids: gov:usgs:gallium-mcs-2025 | gov:iea:rare-earth-magnets-2024 | press:reuters:indium-phosphide:2026-06-11 | gov:usgs:graphite-mcs-2025