Tehran: Kazem Gharibabadi, Iran's ambassador and permanent representative to the Vienna-based international organisations, said that the country has started research and development to upgrade fuel for its Tehran Research Reactor, a state media report said on Thursday.
Iran's ambassador also said that the activity is going to be carried out in three phases in the first stage of which metal uranium will be produced using natural uranium.
The country informed the international agency of all these stages and Tehran will continue this process, Gharibabadi said, adding that the IAEA inspectors visited the fuel plate production plant several days ago.