Trade, sanctions and shipping are converging

Trade fights, sanctions and shipping shocks now hit the same supply chains at the same time, forcing companies to treat them as one risk instead of three. (imf.org) (unctad.org) The shipping side is the easiest to see. The International Monetary Fund said Red Sea attacks cut traffic through the Suez Canal, a route that normally carries about 15% of global maritime trade, and detours around the Cape of Good Hope added 10 days or more to many voyages. (imf.org) The trade-policy side is visible in tariffs and import barriers that now sit on top of those delays. The World Trade Organization’s tariff database tracks applied tariffs and other trade measures across more than 170 economies, showing how governments increasingly use border policy as a strategic tool rather than a purely commercial one. (wto.org) (data.wto.org) Sanctions add a third layer because they do not stop at the dock. The Office of Foreign Assets Control said its sanctions programs apply to shipping, insurers, banks and other intermediaries, so a cargo can clear one border and still be blocked from payment, cover or onward transport. (treasury.gov 1) (treasury.gov 2) That overlap has become more concrete since late 2023. United Nations Trade and Development said simultaneous disruptions in the Red Sea, the Black Sea and the Panama Canal showed that waterways, war and climate stress can squeeze the same trade lanes at once. (unctad.org) By May 2025, tonnage through the Suez Canal was still 70% below 2023 levels, according to United Nations Trade and Development. The agency also said rerouting pushed ton-miles up 5.9% in 2024, meaning ships traveled much farther even when cargo volumes did not rise nearly as fast. (unctad.org) Sanctions enforcement has also moved deeper into shipping operations. In an October 31, 2024 compliance note, the Office of Foreign Assets Control told the maritime industry that shipowners, charterers, insurers, port agents and banks all face sanctions exposure if they miss deceptive shipping practices. (treasury.gov) Treasury reinforced that message on April 16, 2025, when it issued an updated advisory on Iranian oil sanctions evasion alongside new Iran-related designations. That linked vessel tracking, cargo documentation and financial screening in a single enforcement package. (treasury.gov) The International Monetary Fund’s PortWatch platform now maps trade disruptions and spillovers across ports and chokepoints, including the Red Sea and the Strait of Hormuz. That reflects how policymakers increasingly watch shipping routes, port calls and sanctions exposure together rather than as separate dashboards. (imf.org 1) (imf.org 2) (imf.org 3) United Nations Trade and Development said vulnerable economies, especially small island developing states and least developed countries, are hit hardest when rerouting lifts freight costs. In practice, the countries with the least bargaining power often absorb the price of longer voyages, tighter compliance checks and fewer available ships. (unctad.org 1) (unctad.org 2) The result is a more crowded map of risk. A tariff decision, a sanctions update or an attack near a chokepoint can now reshape the same shipment before it reaches port, gets insured or gets paid for. (imf.org) (treasury.gov) (unctad.org)