World uranium resources

'Red Book' is a joint report by the Organization for Economic Cooperation and Development/Nuclear Energy Agency (OECD/NEA) and the International Atomic Energy Agency (IAEA), it is edited an issue every two years. The 'Red Book' reports chiefly uranium resources, uranium exploration, uranium production and uranium demand in the latest two years in the world. To help people understand the total uranium resources and uranium supply and demand, on the basis of update (No. 20) 'Red Book', total world uranium resources and their changes, as well as Known Conventional Resources (RAR and EAR-I) of some countries are presented. Worldwide uranium exploration and production are also briefly described. (authors)