- United Kingdom
The International Atomic Energy Agency (IAEA) reported on July 6 that Iran had started the process of producing uranium metal enriched to 20 percent purity at the Fuel Fabrication Plant in Isfahan. Iran claims that it plans to use the enriched uranium metal as fuel for a research reactor. France, Germany, the United Kingdom, and the United States criticized the Iranian move as a threat to ongoing negotiations to return Iran to compliance with the Joint Comprehensive Plan of Action (JCPOA). The JCPOA prohibits Iran from performing any work related to uranium metal, which can be used in the core of a nuclear weapon. Iran produced a small quantity of unenriched uranium metal earlier this year.