The International Atomic Energy Agency (IAEA) reported that Iran had produced 200 grams of uranium metal enriched up to 20 percent purity as of August 14. Iran had previously produced smaller quantities of the metal. The Joint Comprehensive Plan of Action (JCPOA), the international agreement imposing restrictions on Iran's nuclear program, prohibits the country from making uranium metal, which has applications in nuclear weapons. The U.S. State Department criticized Iran's production of enriched uranium metal and described the move as undermining negotiations to return Iran and the United States to compliance with the JCPOA.