US warns shipping firms they could face sanctions over paying Iranian tolls in the Strait of Hormuz May 4, 2026 Export - Import, International Shipping, Maritime, Maritime safety, Maritime Security, Shipping Line, Trade, Trending News WASHINGTON D.C.: The United States is warning shipping companies that they could face sanctions for making payments to Iran to safely pass through the Strait of Hormuz. The alert posted Friday (May 1) by