Ternium (TX) reported Q2 earnings late Tuesday of $1.75 per American depositary share, up from $1.10 a year earlier.
Analysts polled by FactSet expected earnings of $1.33.
Net sales for the quarter ended June 30 rose to $4.34 billion from $3.95 billion a year earlier.
Analysts surveyed by FactSet expected $4.41 billion.