 LIMA, Peru--BUSINESS WIRE--Compañia de Minas Buenaventura S.A.A. Buenaventura or the Company NYSE: BVN; Lima Stock Exchange: BUE.LM, Perus largest publicly-traded precious metals mining company, is pleased to announce the promotion of Mr. Aldo Massa to Vice President of Business Development and Commercial, effective immediately. In his previous role within the Company, Mr. Massa served as Buenaventuras Commercial Manager. Leandro Garcia, Chief Executive Officer of Buenaventura, comm 