Iran and several world powers could begin drafting a final nuclear agreement as early as next months.
Iranian Deputy foreign minister Abbas Araqchi made the remarks followed a three-day nuclear experts meeting, which concluded in Vienna over the weekend.
Araqchi has also indicated that the Arak heavy water plant and Iran's uranium enrichment activities will be among the topics during the next round of bargaining.
Nuclear experts from Iran and the P5+1 group, namely Britain, China, France, Russia, the United States plus Germany attended the meeting.
Western powers have been demanding Iran significantly scale-back its nuclear program, while Iran is demanding sanctions relief.
