The historical estimate was prepared using wireframe models for zinc thresholds, with grade interpolation completed using the inverse power of distance method. The reliability of the historical estimate is considered reasonable, but a Qualified Person has not completed sufficient work to classify the historical estimate as a current mineral resource and the Company is not treating the historical estimate as a current mineral resource. To upgrade the historical resource to a current resource a constrained mineral estimation should be constructed by a Qualified Person. Nova intends to confirm previous historical results with a 40 hole drill program currently in the planning stage