"After (the implementation) of the agreement, our major work would just begin," Zanganeh said, referring to the agreement between Iran and the Group 5+1 (Russia, China, the US, Britain, France and Germany), known as the Joint Comprehensive Plan of Action (JCPOA).
"The first step is to prepare for increasing (oil) exports," he said.
Iran and the Group 5+1 concluded more than two weeks of talks over Tehran's nuclear program in Vienna on Tuesday, July 14.
The negotiating parties reached a conclusion over the text of a comprehensive deal on Tehran's nuclear program after 22 months of diplomatic negotiations, ending more than a decade of standoff over Tehran's civilian nuclear program.