Lion Delivers High-Grade Copper Intercepts, Positive Metallurgy on Low-Grade Mineralization

News provided by Power Metallic Mines Inc. May 26, 2026, 08:40 ET Share this article Share to X Share this article Share to X New drill results include 10.30m @ 4.04% CuEqRec1 and 4.07m @ 8.73% CuEqRec1, with metallurgical testing confirming strong recovery potential from disseminated low-grade zones. High-grade copper intercepts: 4.07 metres grading 8.73% CuEqRec1 in hole 26-067 Significant broader intercept: 10.30 metres grading 4.04% CuEqRec1 in hole 26-097 Positive metallurgy: Locked-Cycle testing on 'low-low grade' disseminated mineralization returns encouraging recovery results, enhancing project economics TORONTO , May 26, 2026 /PRNewswire/ - Power Metallic Mines Inc . (the "Company" or "Power Metallic" ) (TSXV: PNPN) (OTCBB: PNPNF ) (Frankfurt: IVV1) is pleased to provide an update on assays and recent testing of low-low grade composite of disseminated mineralization. Summary Continue Reading Figure 1 – Lion Zone MRE Drill holes reported in this news release (CNW Group/Power Metallic Mines Inc.) Additional assays from its winter 2026 drill program continue to come in with all assay results expected by mid-June for adding to the initial NI-43-101 Mineral Resource Estimate (MRE) on Lion, and an update of the Nisk Ni-Cu-Pd deposit MRE with completion and reporting of estimates by the end of July.

This MRE will form the basis for a Preliminary Economic Assessment (PEA) to begin immediately following the completion of the MRE. This news release also reports metallurgical recoveries comparable to those in prior releases, based on recent Locked-Cycle (LCT) testing of a low-low grade composite of disseminated mineralization at Lion done by SGS Canada Ltd. at its laboratories based in Quebec City, QC, and Lakefield, ON. Testing of this lower grade material will help inform low cut-off grades for deposit modeling in the upcoming MRE.

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