In a letter dated 19 February 2010, Iran informed the IAEA that it was continuing to try to purchase URE for Tehran`s research reactor on the international market and that it was prepared to exchange EEUs for fuel assemblies “simultaneously or as a whole within Iranian territory”. Iran has asked the IAEA to convey this message to the P5-1, but the parties have not been able to resume negotiations. [57] The interruption of the talks was followed by a new proposal for the exchange of nuclear fuel, which was presented by Brazil and Turkey. On 17 May 2010, Brazil, Turkey and Iran made a joint declaration in which Iran agreed to export half of its stockpile of URE (1200 kg) to Turkey as a confidence measure, in exchange for 120 kg of 20% enriched uranium for use in its medical research reactor. [58] However, the agreement was not accepted by Western countries, which felt that Iran`s agreement to withdraw only 1200 kg of URE from its territory was insufficient, too late. Iran had announced in early November that it would make a fourth stage of the 2015 nuclear deal – the injection of uranium gas into 1,044 centrifuges, which had been kept empty under the terms of the agreement. According to the U.S. government, Iran`s uranium stockpile will be reduced by 98% over 15 years to 300 kg. Enrichment must also remain at 3.67%. Iran will retain no more than 6,104 of the nearly 20,000 centrifuges it owns. In Iran, there are two uranium enrichment plants: Natanz and Fordo. As part of the Comprehensive Action Plan (JCPOA) adopted on 14 July, the Natanz facility will be limited to the installation of at least 5,060 of the oldest and least efficient centrifuges in the last 10 years.

In Fordo, enrichment will not be permitted for 15 years and the underground facility will be transformed into a nuclear, physics and technology centre. 1.044 On-site centrifuges will produce radioisotopes for use in medicine, agriculture, industry and science. [16] [17] This 3.67% enrichment alone would be sufficient for peaceful and civil use to propel parts of the country and would therefore not be sufficient to make an atomic bomb. [18] In announcing the withdrawal, Trump objected to the agreement not addressing Iran`s ballistic program or its proxy wars in the region, saying that the sunset provisions would allow Iran to pursue a bomb in the future.