Countries: Non-nuclear weapon states

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Highly enriched uranium

According to the 2014 IAEA Annual Report, as of the end of 2014 there were 191.3 significant quantities of HEU under safeguards at states with comprehensive safeguards agreements. This corresponds to about 15 tons of HEU, of which about 5 tons is HEU with average enrichment of 60% and about 10 tons of HEU with enrichment of about 20% in spent fuel of BN-350 reactor that is stored in Kazakhstan.

Plutonium

Of the non-nuclear weapon states, Japan owns the largest stock of separated plutonium. According to its 2014 declaration, it owned 47.1 tons of the material, of which 10.8 tons were located in Japan. Other countries that own separated plutonium include Germany, Switzerland, Australia, Italy and the Netherlands, which own civilian plutonium that is stored overseas.