Iran claims that the purpose of the Heavy Water Research Reactor it is building, in violation of UNSCRs, is to produce medical isotopes and conduct research. However, the design of this reactor is ideally suited to producing weapons grade plutonium and we remain concerned that Iran intends to develop the facility to provide a plutonium route to a nuclear weapon. Iran has not clarified how it would use the plutonium produced as a result of operating the reactor. Under the Joint Plan of Action Iran has agreed that, as part of a comprehensive solution, it will fully resolve concerns related to the reactor at Arak and will undertake no reprocessing or construction of a facility capable of reprocessing.