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 1Q17 production results and 2017 operating guidance (100% basis). 1Q17 Production per Metal and 2017 Operating Guidance (100% basis) 1Q17 (Actual) 2017 (Estimated) Gold (Oz.) Orcopampa 42,332 180K – 190K Tambomayo –