Trump says buying Iranian oil must stop, threatens secondary sanctions on purchasers

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U.S. President Donald Trump delivers remarks on the National Day of Prayer, in the Rose Garden at the White House in Washington, D.C., U.S., May 1, 2025. REUTERS/Evelyn Hockstein

US President Donald Trump’s comments on secondary sanctions over purchases of Iranian oil follow the postponement of the US talks with Iran.

PHOTO: REUTERS

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WASHINGTON – US President Donald Trump said all purchases of Iranian oil or petrochemical products must stop and any country or person buying any from the country would be immediately subject to secondary sanctions.

“They will not be allowed to do business with the United States of America in any way, shape, or form,” he wrote on Truth Social on May 1.

Mr Trump’s comments follow

the postponement of the latest US talks with Iran

over its nuclear programme, which had been due to take place in Rome on May 3.

A senior Iranian official told Reuters a new date will be set “depending on the US approach”.

Mr Trump’s administration has

targeted Tehran with a series of sanctions

on entities including a China-based crude oil storage terminal and an independent refiner it has accused of being involved in illicit trade in oil and petrochemicals.

In February, Mr Trump restored a “maximum pressure” campaign on Iran which includes efforts to drive its oil exports to zero and help prevent Tehran from developing a nuclear weapon.

US President Donald Trump warned of secondary sanctions for buying Iranian oil in a Truth Social post.

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Secondary sanctions are those where one country seeks to punish a second country for trading with a third by barring access to its own market, a particularly powerful tool for the US because of the size of its economy.

Analysts have said that to really crack down on Iran’s oil exports, the US would have to impose secondary sanctions on entities such as Chinese banks that facilitate the purchases of Iranian oil. China is the largest buyer of Iranian crude. REUTERS

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