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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.
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."
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.
In Arizona, copper mining has been a major industry since the 19th century. In 2007, Arizona was the leading copper-producing state in the country, producing 750 thousand metric tons of copper, valued at $5.54 billion. Arizona's copper production was 60% of the total for the United States. Copper mining also produces gold and silver as ...
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.
Kearny was built by the Kennecott Mining Company in 1958 as a planned community to accommodate the populations of nearby Ray, Sonora and Barcelona, which were about to be swallowed by Kennecott's expanding open-pit copper mine. While many houses in the town were newly built, some mine employees had their homes moved down the road.
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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.