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Carajas Mine Iron ore : 104.88 million tons

Owned and operated by Vale , the Carajas iron ore mine in Brazil is the world ’ s largest iron ore mine . In 2012 , the mine produced 104.88 million tons of iron ore and is estimated to contain 7.27 billion tons of proven and probable reserves .

Vale is currently implementing a $ 19.6 billion expansion to the mine which will include a new mine along with a complete truckless transport system and other automation systems in order to reduce emissions and fuel costs .