US ramps up sanctions on Iran — European banks face bigger risk than trade
The US Treasury unveiled a broader sanctions campaign targeting Iran's financial links, posing more risk to European banks and firms exposed to sanctioned counterparties than to Europe's already minimal trade with Iran. European stock markets reacted calmly.
US Treasury Secretary Scott Bessent announced a sweeping campaign against Iran's financial connections at a press conference on Monday, calling it an "economic onslaught" and saying an announcement of a major financial institution being sanctioned is expected by the end of the week. The initiative, dubbed Operation Economic Outcast, follows Bessent's Sunday warning of an "economic D-Day" for Tehran.
The US Treasury designated close to 60 companies, individuals and vessels across multiple jurisdictions, including Chinese nationals, and suspended licences that had previously allowed limited dealings with Iran. More significant for foreign businesses is the expansion of secondary sanctions into shipping, aviation, gold, technology and digital assets, beyond the existing focus on oil. Bessent said no entity is above the measures, including China, though he declined to set a firm compliance deadline. Iran has vowed to retaliate and said it expects major trading partners to resist Washington's pressure.
Trade exposure remains small
According to Eurostat, EU-Iran goods trade totalled just €3.72 billion in 2025, with €2.97 billion in EU exports — about 0.1% of the bloc's total exports and well below the peak of over €27 billion in 2011. Germany accounts for roughly 32% of EU-Iran trade, Italy 16% and the Netherlands 15%. European exports are mostly pharmaceuticals, machinery and medical equipment, often covered by humanitarian exemptions, while imports are dominated by pistachios and other food products.
European markets took the news in stride on Tuesday morning, with the Euro Stoxx 50 and the broader Stoxx 600 both up around 0.2%, alongside modest gains across other major European indices.
Real risk lies in financial 'plumbing'
Analysts point out that the greater danger for Europe is not direct trade with Iran but the reach of US sanctions enforcement through banks, insurers and shipping firms serving clients across many countries. In 2014, BNP Paribas paid a record $8.9 billion fine over transactions tied to Iran, Sudan and Cuba, and lost dollar-clearing rights through its New York office for a year. The EU's Blocking Statute bars companies from complying with US sanctions without Commission authorisation, yet most firms have chosen to follow US rules since 2018.
