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The reference layer of the Chokepoint Mapping Bureau

Where the world can be squeezed

Permanent, sourced, dated reference pages on the straits, cables, smelters and export flows the global economy depends on. Updated by a live intelligence feed.

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Three layers of reference

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Chokepoints

The physical and processing bottlenecks global flows must pass through: straits, canals, cables, smelters.

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Commodities

Critical materials end to end: supply chains, producers, processing gaps, exposure.

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Dependencies

Country × commodity crossings: who depends on whom, by how much, and what breaks it.

Latest pages

Dependencies Brazil fertilizer imports: a record 45 Mt and 85% dependence Brazil fertilizer imports hit a record 45.5 Mt in 2025, 85% of use. Where urea, phosphate and potash come from, what Hormuz changed and the 2050 plan. Chokepoints Cape of Good Hope shipping route: the detour that became the main road Cape of Good Hope shipping route: 9.1 mb/d of oil, the 10 to 14 day detour around Africa, why ports there can't keep up and what it costs trade in 2026. Dependencies China export controls on critical minerals: rare earths, gallium, germanium and the November 2026 deadlines China export controls on critical minerals: what is licensed, what is suspended until November 2026, and why rare earths, gallium and germanium matter. Dependencies China crude oil imports: record 2025, the Hormuz cut and the stockpile China crude oil imports hit a record 11.6 mb/d in 2025, fell to 8.1 mb/d in Q2 2026 as Hormuz closed, and a record stockpile took the shock. Who supplies it. Chokepoints Danish Straits oil: the Baltic gate for Russia's shadow fleet Danish Straits oil: 4.9 mb/d through the Baltic's only sea gate, mostly Russian, 292 sanctioned tanker voyages in 2025, and why Denmark can't close it. Commodities Gallium supply: 99% Chinese, and the price gap export controls created Gallium supply: China makes 99% of primary gallium, a by-product of alumina, and its controls since 2023 opened a wide price gap between China and the rest.