Newmont Mining Corporation reported its Q1 2017 earnings. Gold production for Q1 was 1.2 Moz, up 9% year-over-year and the company remains on track to meet its full-year guidance of 4.9-5.4 Moz. All-in sustaining costs for Q1 were $900/oz, below guidance. Newmont also approved expansions at its Ahafo mine in Africa, which will improve profitability and mine life. The expansions include an underground mine and mill expansion.