The U.S. Treasury Department announced fresh sanctions targeting Iran's oil sector. The new measures focus on two weak points: the shadow banking networks that facilitate transactions and Chinese importers buying Iranian crude.
Iran sells oil through intermediaries and obscured financial channels to evade existing U.S. penalties. China remains Iran's largest buyer of petroleum, making Chinese purchases a lever for economic pressure. By sanctioning both the financial infrastructure and the buyers, Treasury aims to shrink Iran's oil revenues, which fund the government and its military operations.
The move tightens restrictions that have existed since the U.S. withdrew from the Iran nuclear deal in 2018. Previous sanctions already limited Iran's oil exports to a fraction of pre-2018 levels. These additional penalties make it harder for Iran to find buyers and move money across borders.
Success depends on whether China complies. Beijing has largely ignored U.S. pressure on Iran, viewing it as a profitable trading partner. If China continues purchasing Iranian oil, the sanctions lose teeth. If enforcement works, Iran's government faces lower revenues at a time of domestic economic strain.