CORDOBA, ARGENTINA — (Marketwire) — 04/26/12 — Researched by Industrial Info Resources Latin America (Cordoba, Argentina) — (NYSE:RIO) (Rio de Janeiro, Brazil) has just started operations at its new copper mine, considered the largest copper deposit ever discovered in Brazil. The Salobo mine is located in the mining district of Carajás, in the Para state in northern Brazil. A Phase II expansion will double the mine-s annual output to 24 million tons and 200,000 tons per year of cop
