... rating is supported by its operations in Peru (BBB+/Stable), a country of vast mineral resources and a favorable mining jurisdiction. Volcan's `BBB¡' rating reflects its diversified revenues from five mining units encompassing eight mines in operation, seven concentrator plants and one lixiviation plant (Ag oxides) across the Central Andes region. Volcan currently ranks as Peru's leading lead producer, second- largest zinc producer, and third-largest silver producer....