The Vienna meeting, which began today, is aimed at reaching a lasting accord to end a decade-long standoff over Iran's nuclear programme.
"In the next round, we will start writing the text of a final agreement which will be a complicated, difficult and slow task," Zarif, who leads the Iranian negotiating team, wrote on his Facebook page.
"Therefore, I formed an advisory group in legal affairs which comprises many prominent and well-known professors specialised in international law ... To assist the negotiating team in that important matter," he said.
Iran and the five UN Security Council permanent members plus Germany want to transform a deal struck in November into a permanent agreement by the time this temporary accord lapses on July 20.
Under the November deal, which took effect on January 20, Iran froze certain nuclear activities for six months in exchange for minor relief from sanctions hurting its economy.
As part of the deal, Iran was given greater access to civilian aircraft parts and on Monday Washington said that Boeing had been issued with a temporary licence to do business with the Islamic republic.
Zarif had yesterday expressed hope to round up the negotiating phase with world powers during this week's talks and move on to drafting a final accord on the nuclear programme.
You’ve reached your limit of {{free_limit}} free articles this month.
Subscribe now for unlimited access.
Already subscribed? Log in
Subscribe to read the full story →
Smart Quarterly
₹900
3 Months
₹300/Month
Smart Essential
₹2,700
1 Year
₹225/Month
Super Saver
₹3,900
2 Years
₹162/Month
Renews automatically, cancel anytime
Here’s what’s included in our digital subscription plans
Exclusive premium stories online
Over 30 premium stories daily, handpicked by our editors


Complimentary Access to The New York Times
News, Games, Cooking, Audio, Wirecutter & The Athletic
Business Standard Epaper
Digital replica of our daily newspaper — with options to read, save, and share


Curated Newsletters
Insights on markets, finance, politics, tech, and more delivered to your inbox
Market Analysis & Investment Insights
In-depth market analysis & insights with access to The Smart Investor


Archives
Repository of articles and publications dating back to 1997
Ad-free Reading
Uninterrupted reading experience with no advertisements


Seamless Access Across All Devices
Access Business Standard across devices — mobile, tablet, or PC, via web or app
