ASARCO (American Smelting and Refining Company) is a mining, smelting, and refining company based in Tucson, Arizona, which mines and processes primarily copper. Its three largest open-pit mines are the Mission, Silver Bell and Ray mines in Arizona.
ASARCO (American Smelting and Refining Company) is a mining, smelting, and refining company based in Tucson, Arizona, which mines and processes primarily copper. Its three largest open-pit mines are the Mission, Silver Bell and Ray mines in Arizona.
Source: Wikipedia "ASARCO" · CC BY-SA 4.0
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