U.S. container imports rose 8.2% year-over-year in June, according to supply chain technology provider Descartes Systems Group, as importers rushed goods into the country ahead of potential new tariffs and rising transportation costs linked to the war in Iran. U.S. seaports processed 2,400,627 twenty-foot equivalent units (TEUs) during the month. The headline number looks like strength, but the first-half data tells a different story. For the first six months of 2026, imports were actually down 0.