LIMA, Peru, July 26, 2011 /PRNewswire/ -- Compania de Minas Buenaventura S.A.A. ("Buenaventura" or "the Company") (NYSE: BVN; Lima Stock Exchange: BUE.LM), Peru's largest, publicly-traded precious metals mining company, announced today results for the second quarter 2011. All figures have been prepa
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