Fissile material stocks
As of January 2012, the global stockpile of highly enriched uranium (HEU) is estimated to be about 1440 tonnes. The global stockpile of separated plutonium is about 500 tonnes, roughly half produced for weapons and half produced in civilian nuclear power programs. (For details, see the 2011 IPFM Report)
| HEU, tonnes | Weapon Pu, tonnes | Reactor-grade Pu, tonnes | |
| Russia | 737 | 128 | 48.4 |
| United States | 610 | 91.9 | 0 |
| France | 30.6 | 6 | 56.0 |
| China | 16 | 1.8 | 0.01 |
| United Kingdom | 21.2 | 7.6 | 87.7 |
| Pakistan | 2.75 | 0.14 | 0 |
| India | 2.0 | 0.5 | 0.24 |
| Israel | 0.3 | 0.82 | - |
| North Korea | 0.03 | - | |
| Germany | - | 7.6 | |
| Japan | - | 44.9 | |
| Switzerland | - | <0.05 | |
| Belgium | - | <0.05 | |
| Others | 20.0 | - | 10.7 |
| TOTAL | 1440 | 241 | 256 |
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. Other numbers are non-governmental estimates, often with large uncertainties. HEU amounts are 90% enriched HEU equivalent. 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.