"My mission is finished... And I return to Iran with satisfaction," said Soltanieh, who has held the post since 2005.
On August 15, new President Hassan Rowhani named Ali Akbar Salehi to head Iran's Atomic Energy Organisation as part of his team.
Salehi, who holds a doctorate in nuclear science from the Massachusetts Institute of Technology, already headed the organisation between 2009 and 2010 before taking up the post of foreign minister under former president Mahmoud Ahmadinejad.
Western countries and Israel suspect Iran's nuclear programme is cover for a drive for a weapons capability, an ambition Tehran strongly denies.
The IAEA has been probing the programme for the past decade, and a number of international sanctions have been slapped on Tehran for its refusal to stop enriching uranium. That process can lead to producing the fissile core of an atomic weapon.
Talks between Tehran and major world powers have so far failed to yield an agreement.
You’ve hit your limit of 5 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
Access to Exclusive Premium Stories Online
Over 30 behind the paywall stories daily, handpicked by our editors for subscribers


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