But the second tranche of sanctions, which kicks in on 5 November and targets Iran's vital oil sector, could be far more damaging - even if several key customers such as China, India and Turkey have refused to significantly cut their purchases.
At current market rates, the imports are worth about $15bn.
The comments from Beijing and Berlin signaled growing anger from partners of the United States, which reimposed strict sanctions against Iran on Tuesday, over its threat to penalize businesses from third countries that continue to operate there.
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In one case, she alleged that foreign accounts were used by Manafort to pay for more than $3.5 million in home improvements. Gates, meanwhile, wearing dark blue suit, white shirt and red tie, cut a lonely figure at the witness stand, blinking hard.
Rouhani claimed President Trump's exit from the nuclear deal revealed what he calls "America's lack of commitment to worldwide obligations".
Iranian President Hassan Rouhani has told North Korea that the United States can not be trusted, as the USA seeks a deal to rein in the North's nuclear and missile programmes.
"We are encouraging small and medium enterprises in particular to increase business with and in Iran as part of something (that) for us is a security priority", she said during a joint press conference with New Zealand Foreign Minister Winston Peters.
On Tuesday, US President Donald Trump wrote on social media that "anyone doing business with Iran will NOT be doing business with the United States".
While Votel said the scope of the recent Iranian maritime exercise was similar to that of other exercises done in the region, its timing gave it added significance.
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Daura's termination was announced by Osinbajo's spokesperson, Laolu Akande , in a statement on Tuesday, August 7, 2018 . The Director-General of the Department of the State Services, Lawal Daura , has been sacked.
Mr Trump chose to restore sanctions against Iran despite pleas from other world powers that had co-sponsored the deal, including Washington's main European allies, Britain, France and Germany, as well as Russian Federation and China.
Trump's National Security Adviser John Bolton told Fox News that the U.S. policy "is not regime change, but we definitely want to put maximum pressure on the government".
A large-scale naval exercise by Iran last week in the Strait of Hormuz was a designed message to the United States, Army Gen. Joseph Votel said Wednesday.
British Foreign Office Minister Alastair Burt said that the "Americans have really not got this right".
Iran's foreign minister Javad Zarif turned the tables on Washington's efforts to isolate the regime, saying Monday that it is in fact the US, Israel, and Saudi Arabia who are isolated in their hostility towards Iran.
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Musk's tweet isn't a clear violation of SEC rules, but it could be if it was explicitly meant to boost Tesla's price. Despite the unconventional method of disclosing such information, analysts took Musk at his word.
"America has zigzagged constantly, so now no one trusts them", he said.