Araqchi, who is also Deputy Foreign Minister for Legal and International Affairs, described the atmosphere of Tuesday talks as good but also frank and serious.
"Today's discussions were definitely useful," he added.
The Iranian official went on to say that the next round of talks between Tehran and the Sextet of world powers in scheduled to be held on April 7-9 and the venue is likely to be Vienna again.
Araqchi said that while the Tuesday's meetings featured the issue of enrichment, peaceful nuclear cooperation and the removal of sanctions, the Wednesday's talks would zoom on the Arak heavy water reactor.
The Iranian diplomat said talks at this stage -which are slated to end Wednesday afternoon--- and the next round would focus on the exchange of views before reaching a common understanding.
On November 24, Iran and the five permanent United Nations Security Council members sealed a six-month Joint Plan of Action to lay the groundwork for the full resolution of the West’s decade-old dispute with Iran over the latter's nuclear energy program. In exchange for Tehran’s confidence-building bid to limit certain aspects of its nuclear activities, the Sextet of the world powers agreed to lift some of the existing sanctions against Tehran and impose no nuclear-related sanctions on Iran during the six-month period.
Iran and the six world powers had an expert meeting in Vienna, Austria, on December 9. The negotiations were scheduled to continue until December 13, but the Iranian negotiators cut short the talks and returned home in protest at the US breach of the Geneva agreement by blacklisting a dozen companies and individuals for evading Washington’s sanctions.
After that US Secretary of State John Kerry tried to soothe Tehran’s anger over Washington’s fresh sanctions in a phone call to his Iranian counterpart Mohammad Javad Zarif. Then, the experts meetings continued and yielded results. The two sides agreed on January 20 as the date for starting implementation of the interim nuclear deal.
Eventually on January 20, a confidential report by the International Atomic Energy Agency (IAEA) said that Iran has halted its 20-percent enrichment activity under the Geneva deal. Hours later the US and the EU removed part of their sanctions against Tehran.
Late in February, the UN nuclear watchdog agency, IAEA, announced that Iran is complying with its obligations under the Geneva nuclear deal.
In its new report, the IAEA said 20-percent uranium enrichment “is no longer taking place” by Iran as agreed in an agreement with the six world powers.
It confirmed that no additional uranium enrichment centrifuges have been installed at Iran’s Natanz and Fordo nuclear facilities. The report added that Iran has also provided the IAEA with an updated Design Information Questionnaire (DIQ) for the facility in Arak.
“The measures implemented by Iran and the further commitments it has undertaken represent a positive step forward,” the IAEA report said.
The February report of the IAEA came as Iran and the G5+1 held three days of talks headed by Zarif and Ashton from February 18-20.
Zarif's talks with Ashton focused on finding a lasting solution to the nuclear standoff between the two sides. Both the top diplomats voiced satisfaction in their negotiations, and announced that they would start a fresh round of talks in Vienna on March 17 to achieve a comprehensive and permanent deal.
