06:27 AM EDT, 06/10/2025 (MT Newswires) -- Aura Minerals ( ORAAF ) late on Monday said it has filed a preliminary economic assessment for the Era Dorada project in Guatemala.

The project has an after-tax net present value of US$485 million at a gold price of US$2,410/ounce for the projected period. It also has an after-tax project internal rate of return of 24% at the same gold price.

The project has indicated mineral resources of 1.9 million ounces of gold, assuming 6.35 million tonnes at 9.31 grams per tonne. Total production is approximately 1.4 million ounces of gold over a 17-year life of mine.

Total implementation capex is approximately US$264 million and average cash cost is US$1,072.4/ounce. The preliminary economic assessment contemplates the development of Era Dorada as an underground mine.

In January, Aura acquired Bluestone Resources, which owned Era Dorada, formerly known as Cerro Blanco.