The statement said uranium metal is an "intermediate product" in the manufacture of uranium silicide, a fuel used in nuclear reactors that is safer and has more power capability than uranium oxide-based fuel, which Iran now produces.
It's a violation of the 2015 nuclear agreement signed by Iran which is supposed to prevent Tehran from producing or acquiring uranium metal.
Iran denies any intent to weaponise its nuclear programme.
The enrichment is part of a wide-reaching campaign to avenge the November killing of Mohsen Fakhrizadeh, the mastermind behind the country's nuclear weapons program, which Tehran blamed on Israel as well as in response to sanction imposed by the U.S.
In a statement released on January 16, the governments of France, Germany and the United Kingdom said they "are deeply concerned by Iran's announcement that it is preparing to produce uranium metal". Some argued that 20% enrichment, production of uranium metal and eviction of nuclear inspectors not only jeopardized any effort to restore the accord but risked solidifying USA sanctions.
Iran has been accelerating breaches of the global nuclear deal and, earlier this month, started pressing ahead with plans to enrich uranium to 20 percent fissile strength at its underground Fordow nuclear plant.
Iran urged the United Nations' nuclear watchdog to avoid publishing "unnecessary" details on Tehran's nuclear program, state TV reported Sunday, a day after Germany, France and Britain said Tehran has "no credible civilian use" for its development of uranium metal.
Iran claims its development of uranium metal is to create a new fuel to power nuclear reactors.
Low-enriched uranium, between 3 to 5 percent concentration, is used to make fuel for commercial power plants.
"The advanced fuel production plan ... was first submitted to the IAEA more than two years ago, as stated in the IAEA's recent report; meanwhile more information was sent in several stages and finally the design questionnaire information has been sent to the IAEA", said a statement carried by state media.
Biden has indicated that he would negotiate with Tehran if Washington returns to the deal, and Iran has said it would welcome the return of the Americans to the deal, but only after the economic sanctions are lifted.
Mr. Rouhani hopes an interim agreement before the election would bring Iran back toward full compliance and reduce tensions with the USA and Europe, said an official in his government.
If Biden accepts a nuclear Iran, it will be a huge blow to our friends in the Middle East who have been resisting Iranian hegemony.