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    The world's 20 largest copper mines produce nearly 9 million metric tons of the precious metal a year, about 40 percent of the world's total copper mine capacity. Chile and Peru, alone, account for about half of the copper mines on this list, but the U.S. does make the cut, with two mines among the top 20.

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    Oct 26, 2014· Minas-Rio is the biggest foreign-owned mine in Brazil. Chapada open pit gold-copper mine in the Goiás state of Brazil is owned by Canada-based Yamana Gold. Kinross Gold's Paracatu mine holds 10.42Moz of gold in reserves. Juruti bauxite mine is owned by the Alcoa World Alumina and Chemicals (AWAC) joint venture.

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  • Innovations: Introduction to Copper: Mining & Extraction

    Mining of copper ores is carried out using one of two methods. Underground mining is achieved by sinking shafts to the appropriate levels and then driving horizontal tunnels, called adits, to reach the ore. Underground mining is, however, relatively expensive and is generally limited to rich ores. El Teniente, in Chile, is the world's largest ...

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    May 11, 2018· In the Democratic Republic of Congo, for example, children as young as seven work the mines, and cobalt and copper mines in the country's Katanga region …

  • The 10 biggest copper mines in the world - Mining Technology

    Nov 04, 2013· The 10 biggest copper mines in the world Share Chile, the world's largest copper producing country, hosts six of the ten largest copper mines in the world, while the remaining four are located in Peru, Mexico and Indonesia.

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