TORONTO, ONTARIO -- (Marketwire) -- 02/21/12 -- Dia Bras Exploration Inc. (TSX VENTURE: DIB) ('Dia Bras' or the 'Company'), a Canadian listed mining company focused on precious and base metals in Peru and Mexico, announces that its Peruvian subsidiary, Sociedad Minera Corona S.A. ('Corona'), has executed a Memorandum of Understanding ('MOU') with
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