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Maritime Chokepoint

A maritime chokepoint is a narrow sea passage that a large share of world trade must pass through and that has no cheap alternative route. Disruption at one raises freight, insurance and energy costs and quickly reaches currencies and payments.

Also called: chokepoint · choke point · shipping chokepoint · trade chokepoint · strategic strait

The main ones are the Strait of Hormuz, the Strait of Malacca, the Suez Canal, the Bab el-Mandeb, the Turkish Straits and the Panama Canal. Hormuz and Malacca each carry around a fifth or more of the world's seaborne oil. Malacca is also the shortest route between the Indian Ocean and the factories of East Asia.

When a chokepoint is blocked or becomes dangerous, ships divert. Going round Africa instead of through Suez adds about ten days. Freight rates and war-risk insurance premiums rise, delivery schedules slip and importers must hold more stock. For countries that import their energy, a higher fuel bill means more hard currency leaving every month, which pressures reserves and the exchange rate.

The payment effects follow. Goods that arrive late are paid late, letters of credit expire and need amending, demand for trade finance rises as working capital is tied up at sea, and sanctions questions multiply when vessels are rerouted through unfamiliar ports. A chokepoint is a physical fact that turns into a financial one within weeks.

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Page Last Updated: 12-Oct-2026