While Iran has previously rejected these terms, Russia has stepped in with an offer to take custody of the material. However, Trump remains firmly opposed to this arrangement, having already stated that he will not sanction the transfer of Iran's enriched uranium to either Russia or China. Given Tehran's close diplomatic ties with Moscow and Beijing, it may favour transferring the stockpile to one of them. Nevertheless, no definitive decision has been confirmed, and the fate of the nuclear material will only become clear once the comprehensive deal is officially signed.