According to senior Western diplomats in Geneva, the new round of talks were more upbeat and could likely lead to a deal this weekend.
Iranian Foreign Minister Mohammad Javad Zarif said on Facebook that on Thursday he would hold "serious and detailed" talks with P5+1 chief negotiator and EU foreign policy head Catherine Ashton.
"I will have a meeting with Lady Ashton, which is the beginning of negotiations to examine how to finalize the draft," the ISNA news agency quoted Zarif as saying.
This would be followed later by talks between Zarif and the political directors of all six powers chaired by Ashton.
Iran's lead negotiator Abbas Araqchi also said that "the lost confidence must be regained", in reference to the last Geneva talks 10 days ago when French objections delayed an accord.
“We and G5+1 have not had any discussion about the content so far. A series of principles and negotiating procedures should be resumed and the lost trust should be revived,” Araqchi explained.
On the sidelines of the first day of the negotiations, Zarif and Araqchi, each held a one-on-one meeting with Sergei Ryabkov, the Russian representative to the talks.
The first and second round of Iran’s nuclear talks with the sextet (US, Britain, Russia, China and France plus Germany) were held in Geneva on October 15-16 and November 7-9 respectively.
NJF/NJF