Ero Copper (TSX:ERO) reported quarterly earnings of $0.83 per share which missed the analyst consensus estimate of $1.12 by 25.89 percent. This is a 80.43 percent increase over earnings of $0.46 per share from the same period last year. The company reported quarterly sales of $284.300 million which missed the analyst consensus estimate of $380.560 million by 25.29 percent. This is a 73.88 percent increase over sales of $163.500 million the same period last year.