The United States Department of the Treasury announced this Wednesday sanctions against more than two dozen individuals, companies, and vessels linked to the network of Iranian shipping magnate Mohammad Hossein Shamkhani, in what it described as its largest action against Iran since 2018. The measure adds to the maximum pressure campaign that Washington intensified after the February 28 attacks against Tehran and that by 2025 had already resulted in more than 875 designations against Iranian individuals, vessels, and aircraft.
Hossein Shamkhani is the son of Ali Shamkhani, who until his death in Operation Epic Fury served as a political advisor to Supreme Leader Ali Khamenei and was for years a central figure in the security architecture and the Iranian nuclear program. According to the Treasury, the son leveraged that influence to build a massive fleet of tankers and cargo ships that transported crude oil and derivatives from Iran and Russia to buyers around the world, mainly in China, accumulating tens of billions of dollars in profits. The network came to control a significant part of Iranian crude oil exports, as revealed by the Treasury itself when it sanctioned Shamkhani for the first time, in July 2025.
The network operates through shipping management companies and shell companies —some publicly presented as legitimate financial services firms— to conceal the origin of the capital and the identity of its owners. The Office of Foreign Assets Control (OFAC) indicated that Shamkhani used pseudonyms in all his operations: “H”, “Hector” and “Hugo Hayek”, a false name that appears in his Dominica passport, obtained through millionaire investments. The family would also have accessed luxury properties in different countries through the profits of the network.








