Iran Ramped Up Enrichment After U.S. Withdrew From Nuclear Deal

Iran’s uranium stockpile by level of enrichment (kilograms)

Experts say uranium enriched at 60 percent can quickly be made into weapons-grade uranium, and only a few dozen kilograms is required for a weapon. The International Atomic Energy Agency (IAEA) has been unable to verify the status of Iran’s stockpile since the U.S. and Israeli strikes in June 2025.