Buenaventura Mining Co (NYSE:BVN) reported quarterly earnings of $1.62 per share which beat the analyst consensus estimate of $0.59 by 174.58 percent. This is a 1146.15 percent increase over earnings of $0.13 per share from the same period last year. The company reported quarterly sales of $623.400 million which beat the analyst consensus estimate of $449.989 million by 38.54 percent. This is a 108.08 percent increase over sales of $299.600 million the same period last year.