| tag | description  | no. of articles |
|---|---|---|
| BLACK LAKE | Uranium Mine; Canada | 1 |
| KRASNOKAMENSK | Uranium Mine, Russia | 1 |
| ROSSING | Uranium Mine, Namibia | 31 |
| RUM JUNGLE | uranium mine, Australia | 5 |
| RANGER | Uranium Mine, Australia | 131 |
| BEVERLEY | uranium mine, Australia | 59 |
| NABARLEK | Uranium Mine, Australia | 13 |
| KINTYRE | Uranium Mine, Australia | 7 |
| RADIUM HILL | Uranium Mine, Australia | 4 |
| JABILUKA | Uranium mine in Kakadu National Park, Australia | 111 |
| UIC | Uranium Information Centre ltd. lobby club in Australia | 4 |
| URANIUMHEXAFLUORIDE | Uranium hexafluoride | 208 |
| URANIUM FROM PHOSPHATE | uranium from phosphate mining | 2 |
| URANIUM FROM COAL | Uranium extraction from coal ash | 1 |
| RESENDE | Uranium enrichment plant; Brazil | 7 |
| UEGA | Uranium Enrichment Group of Australia | 1 |
| METROPOLIS | Uranium conversion plant, Illinois USA | 9 |
| URANGESELLSCHAFT | Urangesellschaft Frankfurt | 8 |
| TSINGHUA | University with a PBMR, China | 6 |
| UNIVERSITEIT TWENTE | University of Twente, Enschede | 1 |
| UNIVERSITY LEIDEN | University of Leiden | 3 |
| UVA-UNIVERSITEIT OF AMSTERDAM | University of Amsterdam | 1 |
| UNIVERSITY | Universities / Colleges | 13 |
| USEC | United States Enrichment Corporation | 147 |
| UNITED STATES OF AMERICA | United States | 8113 |
| UNITED REPROCESSORS | United Reprocessors GmbH | 3 |
| UNESCO | United Nations Scientific, Cultural and Educational Organ. | 4 |
| UKAEA | United Kingdom atomic energy agency | 349 |
| UNITED ARAB EMIRATES | United Arab Emirates; country in Asia | 2 |
| UCS | Union of Concerned Scientists | 23 |
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