Uranium can be produced from Various items – IAEA Report reveals the fact

Sea water is the source for Uranium – German, Italy, Japan, UK,USA are producing Uranium from the sea water.

Uranium recovery from tailings and coal ash also possible (Page 37 of Uranium 2014 : Resources Production and Demand).

Link : http://www.oecd-nea.org/ndd/pubs/2014/7209-uranium-2014.pdf