Head of Atomic Energy Organization of Iran (AEOI) Ali-Akbar Salehi said Sunday that Iran has become self-sufficient in producing nuclear yellowcake, state TV reported. In a live broadcast from Iran's IRINN state TV channel, Salehi said that the country's first domestically produced nuclear yellowcake was shipped to central city of Isfahan for processing. The country has no problem for producing yellowcake anymore, he told reporters in Isfahan. Yellowcake is a kind of uranium concentrate powder obtained from leach solutions, in an intermediate step in the processing of uranium ores. Typically yellowcakes are obtained through the milling and chemical processing of uranium ore is insoluble in water and contains about 80 percent uranium oxide. 