largest brazilian iron ore miners
Mining in Brazil Wikipedia. Mining in Brazil is centered on the extraction of iron (the second largest global iron ore exporter), copper, gold, aluminum (bauxiteone of the 5 biggest world''s productors), manganese (one of the 5 biggest world''s productors), tin (one of the biggest world''s productors), niobium (concentrates 98% of the known niobium reserves in the world), and nickel.