US President Donald Trump has declared that any country doing business with Iran will face a new 25 percent tariff on trade with the United States, saying the measure will take effect immediately and is “final and conclusive.” Aaj English TV
In a post on his Truth Social platform, Trump wrote that every nation trading with the Islamic Republic of Iran — whether in oil, goods or other commerce — will be subject to the levy on all business conducted with the US. mint
Countries Most at Risk
Although Washington has not yet released formal legal documentation outlining the policy’s implementation or how “doing business” will be defined, analysts say the sweeping tariff threat could impact several major economies that maintain trade ties with Tehran, including: mint+1
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China — Iran’s largest trading partner, especially for oil. Aaj English TV
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India — among Iran’s top five partners with significant agricultural and industrial trade. The Economic Times
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United Arab Emirates (UAE) — key hub for Middle East commerce. Aaj English TV
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Turkey — maintains strong bilateral relations and robust trade with Tehran. Aaj English TV
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Brazil — faces risk due to corn, soy and fertiliser exports to Iran. Reuters
Trade and Legal Uncertainty
So far, the White House has declined to publish details outlining the legal authority for the tariff, how it will be enforced, or whether exemptions (for example for humanitarian goods) will be applied. Some experts say similar tariff actions have previously used the International Emergency Economic Powers Act, but the move’s legality could face challenges in US courts. mint
There’s also uncertainty over whether the tariff will be added on top of existing duties countries already pay on US trade, potentially raising effective rates even higher — a scenario that could complicate relations with countries like China and India. mint
Global Reaction and Risks
China has already signalled it may retaliate against the tariffs, warning that protectionist policies serve no winner and harm all parties. The Guardian
Economists warn the tariff could disrupt global supply chains, raise costs for consumers and businesses, and strain diplomatic ties — especially with major trading partners that must now weigh economic ties with Tehran against access to the US market. AP News
The tariff announcement comes amid other US pressure on Iran following months of anti-government protests and allegations of violent crackdowns by Iranian authorities. Reuters
