Salares Norte project - Level of study, processing methodology, sustainability and permits
An interim scoping study was completed on the project in 2014, which showed positive results. The scoping study was updated in 2015 after additional drilling, metallurgical testing and cost analysis. The environmental impact declaration that was approved in January 2014 was amended in 2016 to permit continued exploration drilling.
A positive pre-feasibility study was completed for the Brecha Principal deposit in March 2017. Following additional drilling in 2017 mainly at Agua Amarga, Salares Norte reflects a significant improvement in Resource model resolution and confidence and is now at 95% indicated (SAMREC) for gold metal. An interim phase feasibility study for Brecha Principal and Agua Amarga using advanced mining study modifying factors will be completed in Q1 2018, to be followed by EIA submission. The project will advance toward an extended feasibility in 2018. The December 2017 Mineral Resource estimate for Salares Norte is supported by positive external audits from Santiago Gigola (geology consultant) and Optiro (resource estimation consultant).
As at all the Gold Fields operations and projects, a comprehensive sampling and assay QA/QC protocol is in place for Salares Norte using leading industry practice in data acquisition, reputable certified laboratories, and analytical controls.