$PGLC / $T.PGLC The Relief Canyon gold mineral resource is listed in Table 5 using a cutoff grade of 0.005 opt Au for oxide material, 0.01 opt Au for mixed material, and 0.02 opt Au for sulfide material. The oxide and mixed cutoffs were chosen to capture mineralization potentially available to open-pit extraction and heap-leach processing, with the higher cutoff for mixed material reflecting the expected reduction in recovered gold. The sulfide cut-off was chosen to reflect the potentially higher costs associated with sulfide processing. The effective date of the mineral resources estimate is November 1, 2016 , and these Measured and Indicated resources are inclusive of the estimated PFS reserves.

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