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, is pleased to announce it has received its final operating permit from the Peruvian Ministry of Energy and Mines to begin production at its Yumpag mine (“Yumpag”). Leandro Garcia, Buenaventura’s CEO, commented, " Receipt of this final permit for our flagship Yumpag mine represents a significant milestone ...