The International Maritime Organization (IMO), the United Nations’ specialized agency for maritime safety and security, has formally opposed the potential imposition of tariffs on vessels transiting the Strait of Hormuz. The statement follows recent remarks by former U.S. President Donald Trump — posted on Truth Social — announcing the reinstatement of a naval blockade against Iran and proposing a 20% fee on all cargo passing through the strategically vital waterway.
IMO Calls for Clarification
In a statement issued on July 13, 2026, the IMO said it is aware of Trump’s post and is awaiting further details. A spokesperson emphasized that the organization has consistently maintained its position against tolls or fees for passage through international straits used for global shipping.
“We are aware of the post and await more information,” the spokesperson said. “The IMO has always been clear in its stance on tolls: it firmly opposes the imposition of mandatory fees for transit through international straits. There is no legal basis under international law to impose such charges simply for passage through a strait.”
Industry Concerns Mount
Shipping industry officials have expressed alarm over the proposal, warning that it would violate international law. One unnamed official questioned the rationale behind the plan, asking: “How would this make passage safer, and what guarantees would it provide?”
The Strait of Hormuz — a narrow waterway between Oman and Iran — serves as a critical global energy corridor, with about 20% of the world’s oil passing through it annually. Any disruption or unilateral imposition of fees could significantly impact global trade and energy markets.