The U.S. Department of the Treasury announced sweeping new sanctions on Tuesday targeting Iran’s aviation sector and its international support networks, marking a significant escalation in the Trump administration’s effort to isolate Tehran economically. The measures are a central component of “Operation Economic Outcast,” a White House initiative described as an unprecedented campaign to sever all remaining economic lifelines sustaining the Islamic Republic.
Treasury Secretary Scott Bessent announced the designations at a G20 summit in Asheville, North Carolina, stating that the actions aim to intensify Iran’s isolation, degrade its military capabilities, and force concessions favorable to the United States. The Office of Foreign Assets Control (OFAC) sanctioned 27 Iranian airlines, accusing them of long-standing support for the regime’s destabilizing activities. The primary focus remains Mahan Air, which has been under U.S. sanctions since 2011 and is accused of transporting personnel, equipment, and funds for the Islamic Revolutionary Guards Corps (IRGC).
Beyond domestic carriers, the Treasury designated nine internationally based entities across the UAE, Turkey, the United Kingdom, Kazakhstan, and Malaysia. These firms were accused of acting as covert front companies, foreign intermediaries, or cargo providers that facilitate the acquisition of U.S.-origin aircraft and sensitive technology through deceptive transshipment routes. Additionally, OFAC suspended three aviation authorizations that previously permitted non-U.S. airlines to fly U.S.-controlled commercial aircraft into Iran and allowed certain overflights.
Experts warn that the extraterritorial reach of these sanctions could severely hamper Iran’s ability to maintain its aging fleet. Sanam Vakil, director of the Middle East and North Africa programme at Chatham House, noted that the measures restrict Tehran’s reliance on regional hubs and may prompt international carriers to suspend services. “If that happens, then this becomes a blockade of Iran’s aviation infrastructure, which is quite serious,” Vakil told TIME.
Secretary Bessent issued a stark warning to global businesses, stating, “You are at risk of being cut off from the global financial system.” This follows recent actions against Egyptian Banque Misr’s UAE branches and Turkey’s Golden Global investment bank, the latter marking the first time a bank in a NATO ally has been sanctioned under the current economic campaign. Turkish officials rejected the allegations against Golden Global as “entirely unfounded,” adding to existing tensions between Washington and Ankara.
Iranian officials have condemned the moves as ineffective and unjust. Foreign Minister Abbas Araghchi dismissed the strategy as a repeat of failed tactics, asking, “After failing to achieve its aims through sanctions or war, Washington’s ‘novel’ solution is… more sanctions. Seriously?” Meanwhile, Ambassador Gholamhossein Darzi labeled the sanctions “economic terrorism” and “collective punishment.” Despite the political rhetoric, the economic toll on Iran is mounting. The rial hit a record low of 2.34 million to the dollar on September 10, and the country lost approximately 630,000 manufacturing jobs in the first quarter of 2026.
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