The meeting is to be held on Friday under presidency of High Representative of the European Union for Foreign Affairs and Security Policy Federica Mogherini.
The foreign ministers of Iran, Germany, France, Russia, Britain and China will attend the meeting.
This is the second meeting after US unilateral exit from JCPOA which is slated to discuss EU’s economic proposal with the aim of ensuring Iran’s economic and commercial interests in the absence of US from the international pact.
Vice-President for Legal Affairs Laya Joneidi is accompanying Zarif in his visit to Vienna.
Expert meeting of Iran and 4+1 Group was held late Thursday.
US President Donald Trump announced on May 8 that Washington was walking away from the nuclear agreement, reached between Iran and the five permanent members of the UN Security Council – the United States, Britain, France, Russia and China – plus Germany in 2015.
Trump also said he would reinstate US nuclear sanctions on Iran and impose “the highest level” of economic bans on the Islamic Republic.
Under the JCPOA, Iran undertook to put limits on its nuclear program in exchange for the removal of nuclear-related sanctions imposed against Tehran.
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