Tracking highly enriched uranium and plutonium, the key nuclear weapon materials

Japan reports its 2012 plutonium stock to IAEA

| 2 TrackBacks

In its official submission to IAEA, INFCIRC/549/Add.1/16, Japan reported its plutonium holdings as of December 31, 2012.

According to the document, at the end of 2012 Japan had 4.4 tonnes of separated unirradiated plutonium at the reprocessing facilities, 2.9 tonnes in fuel manufacturing process, and 1.6 tonnes in unirradiated MOX fuel. Additional 0.4 tonnes of unirradiated plutonium is "held elsewhere." These numbers have not changed since the 2011 declaration.

In addition, Japan reported having 34.9 tonnes of unirradiated plutonium outside of its territory - 0.1 tonnes less than in 2010.

Japan also declared 133 tonnes of plutonium contained in spent fuel held at reactors sites and 26 tonnes - in spent fuel at reprocessing facilities. Some material, less than 500 kg, is declared as held at other sites. These amounts have not changed since 2011.

A more detailed account of Japan's plutonium holdings is contained in the annual report "The Current Situation of Plutonium Management in Japan", that was released earlier.

2 TrackBacks

TrackBack URL:

By Shaun Burnie with Mycle Schneider China has urged Japan to return over 300 kilograms of weapons grade plutonium to the Unites States and to explain how it intends to resolve its surplus plutonium problem. At a regular press briefing... Read More

Japan misreported some of its plutonium in two recent INFCIRC/549 declarations that described the status of its civilian plutonium stock as of 31 December 2011 and 31 December 2012. The declarations, that draw on the annual Japan Atomic Energy Commissi... Read More