LIMA, Peru–(BUSINESS WIRE)–Compañia 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, today announced preliminary 2Q17 production results and 2017 operating guidance (100% basis). 1Q17 (Actual) 2Q17 (Actual) 6M17 (Actual) 2017 (Estimated ) Gold (Oz.) Orcopampa 42,332 46,917 89,248 190k – 200k Tambomayo 0 12,454 12,454 60k –