Diluting Half Its 20-percent Enriched Uranium
The IAEA assessment is based on Iran’s actions since the signing of JPOA, specifically in diluting half of its stockpile of 20-percent enriched uranium. JPOA went into effect in January. Iran’s 20-percent enriched uranium stockpile was one the key concerns of the P5+1, as it is only a technical step away from the 90-percent grade uranium used to arm nuclear weapons
By late last year, Iran had amassed nearly 200 kg of 20-percent enrich uranium, which with further enrichment was enough for one nuclear bomb In January, it halted its 20-percent enrichment program and has started the process of converting half of the stockpile into oxide for reactor fuel. The other half is now been diluted into low-enriched uranium. Reconverting oxide or lower-level enriched into weapons-grade uranium would take much longer than doing so from 20-percent enriched material.