Ero Copper (NYSE:ERO) reported quarterly earnings of $0.27 per share which missed the analyst consensus estimate of $0.44 by 38.36 percent. This is unchanged from the same period last year. The company reported quarterly sales of $177.100 million which missed the analyst consensus estimate of $202.077 million by 12.36 percent. This is a 41.91 percent increase over sales of $124.800 million the same period last year.