Araqchi made the statement before departing Tehran on Monday evening to hold a meeting with the IAEA Director General, Yukiya Amano, in the Austrian capital of Vienna on Tuesday.
He noted that the meeting is said to be in line with cooperation between Iran and the UN nuclear agency, and will aim to settle some nuclear issues so as to pave the way for further progress in cooperation.
The Iranian diplomat also referred to another meeting between the Iranian Foreign Minister Mohammad Javad Zarif and Amano on the sidelines of the Munich Security Conference on February 7, and said the two sides had agreed on more high-level talks.
He also expressed optimism that the talks with the IAEA would further strengthen bilateral cooperation.
"Hopefully, we will be able to settle issues with the agency as soon as possible in the course of progress in negotiations with the P5+1,” he added.
Iran and the six majors rapped up an intensive series of talks late Monday.
The talks which had started on Friday, were for the first time attended by nuclear chiefs of Iran and the US to discuss technical details.