Orla Mining has released an updated feasibility study for its Camino Rojo heap leach oxide gold project in Mexico. The latest study features a 54% increase in reserves and a 3.5-year mine life extension for the operation, which is currently under construction.

The 10.4-year, 18,000 t/d mine from the latest feasibility would produce an average of 94,000 gold oz. and 597,000 silver oz. annually at all-in sustaining costs of $543 per oz. With an initial capital estimate of $134 million, the after-tax net present value estimate for this project comes in at $452 million, at a 5% discount rate, based on $1,600 per oz. gold and $20 per oz. silver, with a 62% internal rate of return.