Reconciliation with new data

Abstract

Validation of the model should be continued through the entire duration of the mining project and repeated each time when the new data become available. This can be next phase of the infill drilling providing the more detailed geological information and higher density of sampling allowing to better model spatial continuity of the grade and deleterious elements. Commencement of production provides the grade control data, which because of their high density of a spatial distribution provides a unique opportunity for validating the ore reserves and the underlying resource estimate. Eventually, the mine and the plant production data provides an ultimate opportunity to reconcile the ore reserves.