Indicated Mineral Resources were based on a nominal drill hole spacing of 50 m. Mineral Resources have been reported within underground reporting shapes based on an NSR cut-off value of US$46/tonne. A crown pillar exclusion of 20 m from the bottom of the overburden below lakes and the underground reporting shapes used during reporting ensure that the Mineral Resources meet the minimum requirements for Reasonable Prospects of Eventual Economic Extraction (RPEEE). NSR and Mineral Resources Cut-off Value NSR values have been estimated for an operating scenario that includes production of a split copper sulphide concentrate and a nickel-rich residual sulphide concentrate, each containing payable platinum and palladium, for both the Escape and Current deposits. Metal prices are based on consensus, long term forecasts from banks, financial institutions, and other sources. The metal prices and other input parameters used in development of a unit NSR value for each block is provided in Table 11.