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Antamina mine, the ninth biggest silver mine in the world, is located 200km from the city of Huaraz in the Andes Mountains of Peru. The copper-zinc mine produces silver and lead concentrates as by-products. The mine’s proven and probable silver reserves as of December 2012 totalled 285.7Moz. Compania Minera Antamina, a joint venture between BHP Billiton (33.75%), Xstrata (33.75%), Teck (22.5%) and Mitsubishi Corporation (10%), owns and operates the mine. Antamina commenced commercial production in 2001. It includes an open-pit mining operation using trucks and shovels. The extracted ore is sent for processing to the concentrator plant at Camp Yanacancha. The milling capacity of the plant was increased to 130,000 tpd in 2011. The mine produced 11.7Moz of silver in the financial year ending June 2013. Antamina had an estimated mine life of 14 years as at June 2013 - "".

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