Rio Algom was a mining corporation that was purchased by Billiton in 2000.
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Uranium
It operated many uranium mines and mills in the Elliot Lake region of Ontario, Canada, including the Lacnor Mine, Nordic Mine, Panel Mine, Pronto Mine, Quirke Mine, Milliken Mine, Stanleigh Mine, and the Spanish-American Mine. These operated from the 1950s to the 1990s.
It got ownership of a uranium mill in the Ambrosia Lake region of New Mexico when it purchased the Quivira Mining Corporation from Kerr-McGee in 1989. The mill had only been active from 1958-1985. However from 1989-2002 it produced uranium from recovered mine-water.
Mergers and acquisitions
Rio Algom bought the Quivira Mining Corporation (a subsidiary of Kerr-McGee) in 1989.
Rio Algom was bought by Billiton (which later became BHP Billiton) in 2000.