The IAEA spoke about the amount of enriched uranium that Iran has

According to TASS with reference to the agency, about 50 kg of uranium is enough to create a nuclear weapon at an enrichment level of up to 90%.

It is specified that the stocks of enriched uranium in Iran are more than 18 times the maximum amount allowed by the Joint Comprehensive Plan of Action (JCPOA) for the Iranian nuclear program. 

In December 2021, the United States accused Iran of speeding up its nuclear program.