U.S. President Donald Trump has signed an executive order warning of additional tariffs on countries that continue trading with Iran. The order, signed on Friday during U.S.-Iran discussions in Oman, does not specify the exact tariff rate but cites 25 percent as an example. According to the order, the tariffs would apply to goods imported into the United States from any country that directly or indirectly purchases, imports, or receives services from Iran.

Trump did not make direct comments about the order itself, but while speaking aboard Air Force One on Friday night, he reiterated that Iran must not possess nuclear weapons. Earlier this year, Trump had issued a similar warning on Truth Social, threatening a 25 percent tariff on nations doing business with Iran.

The executive order underscores Washington’s continued pressure on Tehran and its trading partners, signaling potential economic consequences for countries maintaining commercial ties with Iran.