Fissile material stocks

The global inventory of highly enriched uranium (HEU) is estimated to be about 1370 ± 125 tonnes as of the end of 2014. The global stockpile of separated plutonium as of the end of 2014 is estimated as 506 ± 10 tonnes, of which about 272 tonnes is the material in civilian custody.

HEU,
tonnes
Non-civilian Pu, tonnes Civilian Pu, tonnes
Russia 679 128 52.8
United States 599 87.6 0
France 30.6 6 61.9
China 18 1.8 0.025
United Kingdom 21.2 3.2 104.2
Pakistan 3.1 0.19 0
India 3.2 5.7 0.4
Israel 0.3 0.86 -
North Korea 0 0.03 -
Others 15 - 52.8
TOTAL 1370 234 272

Numbers for weapon plutonium for the United States and United Kingdom are based on official data. Most numbers for civilian plutonium are based on declarations submitted to IAEA and reflect the status as of December 31, 2014. Other numbers are non-governmental estimates, often with large uncertainties. HEU amount for Russia is 90% enriched HEU equivalent. The totals are rounded. See individual country entries for details.

Production of military fissile materials continues in India, which is producing plutonium and HEU for naval propulsion, Pakistan, which produces plutonium and HEU for weapons, Israel, which is believed to produce plutonium. North Korea has the capability to produce weapon-grade plutonium and highly-enriched uranium.

France, Russia, the United Kingdom, Japan, and India operate civilian reprocessing facilities that separate plutonium from spent fuel of power reactors. China is operating a pilot civilian reprocessing facility.

Twelve countries - Russia, the United States, France, the United Kingdom, Germany, the Netherlands (all three are in the URENCO consortium), Japan, Argentina, Brazil, India, Pakistan, and Iran - operate uranium enrichment facilities. North Korea is also believed to have an operational uranium enrichment plant.