US initial sanctions against Iran to come back into effect on Aug. 4

On Nov. 4, further sanctions will snap back, including those hammering Iran’s energy sector and the Iranian central bank.

The Trump administration has said more than 50 international companies have indicated they will withdraw from Iran, as Washington attempts to maximise global pressure on Tehran.

The Trump administration "will not hesitate” to punish foreign companies that don't comply with sanctions set to be reimposed on Iran in the coming months, a senior State Department official said Monday.

US President Donald Trump announced in May US pullout from Iran nuclear deal ; the European nations that also signed on to the agreement — Germany, France and the United Kingdom — all pressured Trump to not pull out of the agreement, and have vowed to try and worth with Iran to keep the deal in place.

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