Discovery of Copper Mineralization in 400 Metre Step-Out Drill Hole, Four Kilometres North of the Mount Polley Mill

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[{"type":"text","content":"Discovery of Copper Mineralization in 400 Metre Step-Out Drill Hole, Four Kilometres North of the Mount Polley Mill\n\n\n\n VANCOUVER, British Columbia, Aug. 12, 2025 (GLOBE NEWSWIRE) --\n \n Imperial Metals Corporation\n \n (“Imperial” or the “Company”) (TSX:III) reports that an exploration drill hole, drilling a blind target through clastic cover rocks, intercepted a hydrothermal breccia hosting significant visual native copper at the unconformity with the Mount Polley Intrusive Complex (MPIC). Two intercepts in diamond drill hole FP-25-01 of 7.0 metres grading 0.70% copper and 0.27 g/t gold starting at 383.0 metres, and 20.0 metres grading 0.25% copper and 0.96 g/t gold starting at 417.5 metres, mark the discovery of significant mineralization in a major step-out. The drill hole was collared 4.15 kilometres north of the operating Mount Polley mill (see Figure 1).\n \n\n\n\n\n Hole ID\n \n\n\n\n From (m)\n \n\n\n\n To (m)\n \n\n\n\n Width (m)\n \n\n\n\n Copper (%)\n \n\n\n\n Gold (g/t)\n \n\n\n\n Copper\n \n Oxide\n \n Ratio(% )*\n \n\n\n\n\n\n FP-25-01\n \n\n\n\n 383.0\n \n\n\n\n 390.0\n \n\n\n\n 7.0\n \n\n\n\n 0.70\n \n\n\n\n 0.27\n \n\n\n\n 9\n \n\n %\n \n\n\n\n\n\n\n\n and\n \n\n\n\n 417.5\n \n\n\n\n 437.5\n \n\n\n\n 20.0\n \n\n\n\n 0.25\n \n\n\n\n 0.96\n \n\n\n\n 9\n \n\n %\n \n\n\n\n\n\n\n\n *Copper Oxide Ratio % = (CuOx%/Total Cu%)*100\n \n\n\n Hole FP-25-01 was drilled 1.2 kilometres north-northwest from the previously mined Wight Pit (Northeast Zone) where some of the highest copper grade ore has been mined at Mount Polley. FP-25-01 was oriented at an azimuth of 210 with a dip of -60 and collared into a conglomerate unit that lies over the MPIC (see Figure 2). The blind target was generated through interpretation of a structural corridor that extends north-northwest from the Northeast Zone and coincides with two geophysical anomalies. Geophysical surveys overlapping the structural corridor reveal a 3-Dimensional Induced Polarization chargeability response and overlapping magnetic high. Drilling through the post-MPIC cover conglomerate unit intersected an unconformable contact with the MPIC at 378.9 metres down hole (348 metres vertical depth from surface). The rock below 378.9 metres consisted of brecciated and carbonate healed MPIC monzonite-monzodiorite with native copper until 414.7 metr...

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