Hillside Mineral Resource Estimate Summary The Mineral Resource Estimate (MRE) for the
Changes to the Previous 2015 Mineral Resource
Work undertaken as part of the 2022 MRE saw minor changes, due to a modification of the block size in consideration of the natural geometry and distribution of the copper mineralisation at Hillside. The smaller block size provides for a higher level of definition between higher grade and lower grade blocks or waste blocks which match the equipment selection for the proposed Hillside mine. All other variables including drillhole data, geological interpretation and grade interpolation methods are un-changed since the previous MRE. Comparisons between the 2015 and 2022 Hillside MRE (Table 3) resulted in a reduction of approximately 3% to the copper metal content for the total MRE.
Changes to the Previous 2021 Ore Reserve
The Ore Reserves represent an update to the previous Ore Reserves announced to market on
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