

What Australia exports is likely Low-Enriched Uranium (LEU), which is less than 20% U²³⁵, and is suitable for nuclear power plants.
Nuclear powered submarines require Highly Enriched Uranium (HEU), which is 20% or more U²³⁵.
Weapons-grade uranium is usually enriched to 90% or higher.
Getting to that 90% level is extremely difficult & time consuming. U²³⁵ and U²³⁸ are chemically identical, so it’s converted to a gas & spun in centrifuges to separate the atoms by weight. Typically hundreds of centrifuges are used in this process. As an example, it took roughly 3 years for the Manhattan Project to refine enough U²³⁵ for the first bomb. That bomb used roughly 60 kilograms of bomb-grade uranium. To get those 60 kg, over 9 metric tons of raw uranium was processed.
It’s this weapons grade uranium that Iran has collected and is protecting.








Yes, exactly.