As of Feb 19, 2020, Iran's enriched uranium stockpile of up to 4.5 % is 1020.9 kg in uranium mass, or 1510 kg in uranium hexafluoride mass. This is up significantly from 372.3 kg uranium mass ( 550.7 kg UF6 mass) on Nov 3, 2019.
However, a relatively large quantity of that amount is enriched to less than 2%. 268.5 kg uranium mass (397.2 hex mass) out of the total 1020.9 kg (1510 kg hex mass) is enriched to less than 2 %.
The 3.67 % stock remained constant, while the 4.5 % LEU stock went up from to 129.2 kg to 537.8 kg uranium mass ( from 191 to 796 kg hex mass).
This represent a monthly average production of LEU (ignoring 2 %) of 113.5 kg uranium mass (167.9 kg UF6 mass). 4/
In the previous reporting period, monthly average production was much lower, at about 76.3 kg UF6 mass. One reason for increased production is the operation of 1,044 additional centrifuges in six cascades at Fordow. 5/
This addition is an increase in total operating centrifuges of about 20 percent. 6/6
