France submitted to IAEA a declaration of its civilian plutonium and HEU holdings as of December 31, 2011 - INFCIRC/549/Add.5/16. According to the document, at the end of 2011 France had 43.5 tonnes of unirradiated separated plutonium stored at reprocessing plants, 6.6 tonnes held up in the fuel fabrication process, 29.1 tonnes in unirradiated MOX fuel, and 1.1 tonnes described as "held elsewhere" - it is the material that is held up in the reprocessing plant and located at research facilities. Of the total of 80.3 tonnes, 22.8 tonnes is foreign material. Less than 50 kg of French plutonium is held outside of the country. No material was in transit. At the end of 2010, France had 80.2 tonnes of separated plutonium, of which 24.2 tonnes were foreign material.

In addition, France estimates that about 107.0 tonnes of plutonium is contained in spent fuel stored at reactor sites, 139.8 tonnes - in spent fuel at the reprocessing plant, and 6.4 tonnes - in spent fuel "held elsewhere." The total amount of plutonium in spent fuel is therefore 250.2 tonnes, an increase compared to the 244.2 tonnes declared in 2010.

The declaration also describes France's civilian HEU stock. At the end of 2011 France had 913 kg of HEU at fuel fabrication plants, 1,838 kg at civilian reactor sites, 425 kg at research facilities, 167 kg as irradiated HEU at civilian reactor sites, and 1,295 kg of irradiated HEU at other facilities.