The nuclear deal, which sees Iran limiting its nuclear activity in exchange to economic benefits, was struck in 2015 by the US, China, Russia, Britain, Germany, France and the European Union, but started to crumble in May a year ago when US President Donald Trump pulled out of it.
As its nuclear deal with world powers unravels amid heightened tensions with the United States, Iran is to engage in a week of high-stakes diplomacy capped by the first visit of a Japanese prime minister to Tehran since the 1979 Islamic Revolution.
His public threats, which came during a joint news conference with German Foreign Minister Heiko Maas, were striking because Zarif was the one who helped secure the nuclear deal, alongside the relatively moderate President Hassan Rouhani.
"We know that the economic advantages promised by Iran with this agreement are to be realized in the scope of hard to without the Americans", said Maas.
"It's a new type of tool, so it's not easy but all the requirements are covered, and I assume we'll be able to use it in the near future", the German Foreign Minister added.
The historic 2015 deal between Iran and world powers including the European Union and the U.S., offered sanctions relief to Iran for scaling back its nuclear programme. Trump also reinstated tough sanctions on Iran, targeting its oil sector.
On Monday, Iran criticized the European signatories of the nuclear pact for failing to salvage the deal after the USA withdrawal, state television reported. "Those who wage such wars can not expect to remain safe".
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Mousavi clarified, "We have not seen any practical move by the Europeans in the past days since the 60-day ultimatum, and we hope that they will take effective actions in the remaining days". "We want Iran's trade and its economic growth to increase through INSTEX with Europe and it is Iran's right to enjoy the [deal's] financial benefits".
In response, Musavi said that European officials "are not in a position to question Iran's issues beyond the nuclear deal".
The European partners had not done enough to provide Iran with alternative ways to trade, he said.
"This war. will never be beneficial for any country and the Iranian people will resist these pressures and bullying behaviours", Iran's state TV quoted Rouhani as saying.
"We will not work miracles".
Regional tensions recently soared over America rushing an aircraft carrier and B-52 bombers to the Mideast over a still-unexplained threat from Iran.
"Attempting to generate negotiating leverage 1 kg of uranium at a time will not bring sanctions relief", US Ambassador Jackie Wolcott said in her statement to the board. It demanded European countries do more to shield it from sanctions. Trump has condemned a 2015 nuclear deal with world powers, signed by his predecessor Barack Obama, as flawed for not being permanent and for not encompassing other non-nuclear issues like Iran's ballistic missile programme or its role in conflicts around the Middle East.
The IAEA has declined to say whether Iran is complying with its obligations, adding that it is up to the parties in the agreement to decide that.