Ero Copper (TSX:ERO) reported quarterly earnings of $1.04 per share which missed the analyst consensus estimate of $1.29 by 19.38 percent. This is a 511.76 percent increase over earnings of $0.17 per share from the same period last year. The company reported quarterly sales of $320.200 million which missed the analyst consensus estimate of $374.179 million by 14.43 percent. This is a 161.39 percent increase over sales of $122.500 million the same period last year.