PLATINUM GROUP METALS LTD
For the period ended Aug 31, 2024. Filed Oct 9, 2024.
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Aug 31, 2024 · Filed Oct 9, 2024
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EX-99.1 · South Complex Sublevel Interval
South Complex Sublevel Interval
For the South Complex, the sublevel interval will be 20 m throughout the T-Zone (i.e., no 40 m sublevels). This change to 20 m sublevel intervals (from a combination of 20 m and 40 m in the 2019 DFS) was made to provide greater selectivity to mitigate the effects of additional FW dilution and ore losses from increasing the minimum FW dip to 42° (from 37°-38° in the 2019 DFS).
The impact of increasing the FW dip is that additional dilution will be mined, and some ore losses to artificially shape the FW will be realized. In some stopes, the additional dilution will reduce the stope grade below cutoff, eliminating the stope from the mine plan. The effect of the increased FW dip on dilution and recovery is shown in Figure 16-29.
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