“Good to meet with Deputy Foreign Minister of Iran @araghchi after my visit to Tehran. Our work must continue,” Grossi wrote in his Twitter account on Tuesday.

Araqchi arrived in Vienna on Monday to attend the JCPOA Joint Commission meeting which will was held today, IRNA reported.

Iran and the IAEA released a joint statement on August 26 in which they stressed agreement to further reinforce their cooperation and enhance mutual trust to facilitate the full implementation of Iran’s Comprehensive Safeguards Agreement (CSA) and the Additional Protocol (AP) thereto, which is provisionally applied by Iran since 16 January 2016.

Based on the statement, the IAEA will continue to take into consideration Iran’s security concerns, by protecting all safeguards confidential information in accordance with the IAEA Statute, the relevant provisions of the CSA and the AP, and the established IAEA confidentiality regime, standards and procedures.

Grossi’s recent visit to Tehran was faced with Western pre-meditated media hype in the aftermath of the US defeated approach with the UN Security Council on the so-called snapback of the UN sanctions on Iran.

Earlier on Tuesday, Secretary-General of the European External Action Service Helga Schmid in a tweeted message hailed the unity of participants of a Joint Commission meeting of the Joint Comprehensive Plan of Action (JCPOA) which was held in Vienna.

“Just finished chairing #JCPOA Joint Commission,” Schmid wrote on her Twitter account adding, “Important to see that participants are united in resolve to preserve the #IranDeal and find a way to ensure full implementation of the agreement despite current challenges.”

The meeting was held at the level of deputy foreign ministers and directors general of foreign ministries of the JCPOA participant states. Iran was represented by Araqchi.

Araqchi has earlier said that the meeting of JCPOA Joint Commission was significant regarding to the US attempts to restore UN sanctions to annihilate the JCPOA.

Referring to the fact that the UNSC members have opposed the US draft resolution to invoke snapback clause of the JCPOA, Araqchi said the US attempts will definitely be an important discussion in the meeting.

The US has illegally called for the reinstatement of UN Security Council sanctions against Iran. US Secretary of State Mike Pompeo announced on Thursday that Washington will return all UN sanctions against Iran “at midnight Sep. 1,” a claim which was strongly condemned by other signatories of the nuclear deal including the EU, Russia and China and was mocked by Iranian senior officials.

Zarif reacted to US claims on returning unilateral sanctions against Iran by saying in a tweeted message, “Obviously they don’t understand law or UN. Maybe they can grasp this: You divorced the JCPOA in 2018. Your name on the marriage certificate is irrelevant.”