The U.S. Department of the Treasury on Thursday, October 1, 2026, expanded sanctions against Iran to include the nation’s automobile and rail industries. The action, taken by the Office of Foreign Assets Control (OFAC), targets major domestic manufacturers and their international supply networks in Turkey, the United Arab Emirates, Indonesia, and Hong Kong. Treasury Secretary Scott Bessent stated the measures are intended to cut off revenue used by the Iranian government to fund military operations and regional proxies.
The new designations are part of "Operation Economic Outcast," a financial campaign announced by the Treasury Department on August 24, 2026. This initiative follows a U.S. naval blockade of Iranian ports that has restricted maritime oil shipments. According to the Treasury, the Iranian government has increasingly relied on land-based transportation sectors to move petroleum and other goods to maintain economic activity under the blockade.
Specifically, the Treasury sanctioned Iran Khodro Company (IKCO) and SAIPA Iranian Automobile Manufacturing Company, which together account for more than 90 percent of Iran’s domestic auto market. The rail sanctions target the state-owned Islamic Republic of Iran Railway Company and the Raja Passenger Trains Company. Additionally, the department designated several foreign firms, including Integrated Auto Parts in the UAE and Troy Trading in Turkey, for supplying components to these sectors.
The Treasury also targeted Iran’s manufacturing and metals industries, sanctioning the Heavy Equipment Production Company (HEPCO) and several steel-related firms. Officials alleged that HEPCO has assisted the Islamic Revolutionary Guard Corps (IRGC) in constructing military training sites and underground facilities. Further sanctions were placed on individuals and shell companies in Hong Kong and China, including businessman Ramin Keshvardoust, for allegedly facilitating tens of millions of dollars in steel and oil shipments through shadow banking systems.
The scale of the financial disruption involves tens of millions of dollars in transactions and the potential loss of international procurement for Iran's largest non-oil economic sectors. For a typical Iranian household, this could manifest as an increase in the cost of vehicles or parts—already impacted by the reported $1 billion in annual losses within the domestic auto industry—and further volatility in the availability of consumer goods transported by rail. The sanctions also create legal and financial risks for international suppliers in the UAE, Turkey, Indonesia, and Hong Kong, who now face being cut off from the U.S. financial system if they continue these trade relationships.
The move targets functional pillars of Iran's industrial infrastructure. By sanctioning entire sectors, the U.S. is utilizing secondary sanctions to force third-party nations to choose between Iranian trade and U.S. financial access. Moving forward, the effectiveness of these measures will depend on the compliance of foreign partners. U.S. Secretary of State Marco Rubio reportedly ordered the Iranian diplomatic delegation to leave the U.S. on Monday, September 28, after negotiations reached an impasse, leaving no current timeline for a ceasefire or the lifting of the maritime blockade.