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The Sillamäe Metallurgy Plant in Estonia was managed by the USSR Ministry of Medium-Scale Engineering and was built in 1946 to produce uranium metal from local shales. After these were found to be unsatisfactory, uranium ores were imported. Part of the plant was converted in the 1980s to produce rare earth oxides and niobium and tantalum from imported ores and concentrates. Uranium ...
The Sillamäe Metallurgy Plant in Estonia was managed by the USSR Ministry of Medium-Scale Engineering and was built in 1946 to produce uranium metal from local shales. After these were found to be unsatisfactory, uranium ores were imported. Part of the plant was converted in the 1980s to produce rare earth oxides and niobium and tantalum from imported ores and concentrates. Uranium ...