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The Ray mine has one of the largest copper reserves in the United States, with proven and probable reserves of 835.7 million tonnes (822,500,000 long tons; 921,200,000 short tons) of ore grading 1.73% copper, as of December 31, 2018. [2] [3] [4] Copper from the Ray mine goes to the Hayden Smelter.
ASARCO (American Smelting and Refining Company) is a mining, smelting, and refining company based in Tucson, Arizona, which mines and processes primarily copper. The company has been a subsidiary of Grupo México since 1999.
It has a 305 meters (1,001 feet) tall chimney, which is the tallest free-standing structure of Arizona. It processes copper from the Ray mine . In 2011, the Environmental Protection Agency took action against the smelter for releasing "illegal amounts of lead, arsenic and eight other dangerous compounds."
Ray is a ghost town in Pinal County, Arizona, United States; it is mostly known for the large copper mine there. It was named after the nearby Ray mine , which was begun by the Ray Copper Company in 1882, after the sister of one of the miners, whose name was Bullinger.
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Mining is Grupo México's largest division, operating 14 mines and 52 plants in Mexico, Peru, USA, Argentina, Chile, Ecuador and Spain. The division operates as Americas Mining Corporation, whose main subsidiaries are Southern Copper Corporation in Mexico and Peru, ASARCO (American Smelting and Refining Company) in the United States and Minera Los Frailes in Spain.
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