Winston Tailings Project: Batch 2 Assay Results
Panther Metals PLC has announced the second batch of assay results from its Winston Tailings Project, confirming consistent grades of gold, gallium, silver, zinc, copper, indium, and cobalt across various depths. The results from eleven Vibracore collar locations, with tailings thicknesses ranging from 2.4m to 13.1m, support previous findings and align with historical production data, indicating strong production potential. The company is progressing towards a Mineral Resource estimate, a key step in advancing the project towards a cashflow proposition and environmental rehabilitation.
Select text to share a quote on X · sign in to keep highlights & notes in your PALM notes
Panther Metals Plc (LSE: PALM), the exploration company focused on mineral projects in Canada, is very pleased to report the second batch of Vibracore sample assay results for the Winston Tailings Project near Schrieber, Ontario, Canada.
Key points:
- Second batch of tailings core sample assay results (Table 1) received for eleven Vibracore collar locations (WT-26-005, WT-26-007, WT-26-011 / 11A, WT-26-012, WT-26-013, WT-26-014, WT-26-015, WT-26-018, WT-26-021 & WT-26-026) situated upon six east-west profiles (Figure 1).
- Assayed intersections reported to date are taken from total tailings thicknesses varying between 2.4m to 13.1m (Table 2). The maximum vertical thickness of tailings (below ice and water) intersected across the TSF is 16.8m with an average vertical thickness of 8.7m.1, 2
- Results continue to show good grade consistency across the vertical depth-profile and laterally between Vibracore hole collar locations, and support or exceed the 2025 preliminary assay results announced 31 July 2025 and the results announced 17 March 2026.1, 3
Darren Hazelwood, Chief Executive Officer commented:
"These latest results continue to highlight the strong production potential offered by the Winston Tailings Project. We are consistently confirming the continuity of mineralisation within the tailings, which closely aligns with our expectations based on our review of the historical production data from the Winston Lake Mine."
Table 1: Winston Tailings Vibracore Sample Assay Results Batch 2
| Vibracore Hole ID | Vertical Depth (m) | Au | Ag | Zn * | Cu | Co | Ga | In | |
|---|---|---|---|---|---|---|---|---|---|
| From | To | (g/t) | (g/t) | (%) | (%) | (ppm) | (ppm) | (ppm) | |
| WT-26-005 | 1.77 | 3.27 | 0.26 | 9.09 | 1.480 | 0.125 | 203 | 71 | 10 |
| 3.27 | 4.77 | 0.29 | 7.93 | 1.225 | 0.102 | 260 | 81 | 12 | |
| 4.77 | 6.27 | 0.42 | 10.20 | 0.820 | 0.093 | 270 | 77 | 8 | |
| 6.27 | 6.88 | 0.64 | 11.90 | 1.285 | 0.120 | 237 | 91 | 11 | |
| WT-26-007 | 4.77 | 6.27 | 0.42 | 11.50 | 1.315 | 0.131 | 323 | 88 | 13 |
| 6.27 | 7.77 | 0.69 | 11.10 | 1.405 | 0.133 | 200 | 88 | 12 | |
| 7.77 | 9.27 | 0.63 | 10.00 | 1.570 | 0.132 | 190 | 82 | 13 | |
| 9.27 | 10.27 | 0.44 | 8.55 | 1.755 | 0.111 | 205 | 90 | 16 | |
| WT-26-011 | 1.57 | 3.07 | 0.45 | 11.10 | 1.015 | 0.106 | 315 | 74 | 12 |
| WT-26-011A | 1.57 | 3.07 | 0.05 | 1.32 | 0.912 | 0.026 | 60 | 22 | 5 |
| WT-26-012 | 0.51 | 1.77 | 0.34 | 10.25 | 1.675 | 0.170 | 358 | 103 | 20 |
| 1.77 | 3.27 | 0.53 | 13.40 | 1.260 | 0.127 | 430 | 103 | 17 | |
| 3.27 | 4.77 | 0.35 | 12.25 | 1.240 | 0.109 | 383 | 98 | 14 | |
| 4.77 | 6.27 | 0.51 | 11.60 | 1.135 | 0.105 | 341 | 86 | 11 | |
| 6.27 | 7.77 | 0.63 | 13.40 | 1.510 | 0.136 | 286 | 88 | 14 | |
| 7.77 | 9.27 | 0.62 | 12.80 | 1.470 | 0.126 | 289 | 97 | 14 | |
| 9.27 | 10.77 | 1.32 | 18.65 | 2.240 | 0.155 | 262 | 97 | 18 | |
| 10.77 | 11.71 | 0.53 | 13.65 | 3.290 | 0.188 | 303 | 101 | 24 | |
| WT-26-013 | 1.77 | 3.27 | 0.52 | 13.30 | 1.405 | 0.134 | 366 | 83 | 14 |
| 3.27 | 4.77 | 0.42 | 14.45 | 1.255 | 0.126 | 370 | 95 | 12 | |
| 4.77 | 6.27 | 0.57 | 11.55 | 0.713 | 0.085 | 374 | 66 | 6 | |
| 6.27 | 7.77 | 0.54 | 14.10 | 1.385 | 0.127 | 270 | 86 | 11 | |
| WT-26-014 | 1.77 | 3.27 | 0.43 | 10.05 | 1.340 | 0.131 | 349 | 84 | 14 |
| 3.27 | 4.31 | 0.30 | 12.45 | 1.380 | 0.122 | 392 | 114 | 15 | |
| WT-26-015 | 3.27 | 4.77 | 0.41 | 12.55 | 0.895 | 0.102 | 330 | 97 | 10 |
| 4.77 | 5.82 | 0.48 | 12.90 | 1.240 | 0.105 | 370 | 92 | 12 | |
| 5.82 | 6.27 | 0.52 | 11.90 | 0.890 | 0.095 | 340 | 88 | 10 | |
| WT-26-018 | 3.27 | 4.07 | 0.26 | 13.50 | 1.410 | 0.105 | 305 | 92 | 14 |
| WT-26-021 | 3.27 | 4.77 | 0.64 | 14.20 | 1.145 | 0.118 | 334 | 83 | 10 |
| 4.77 | 5.74 | 0.71 | 13.80 | 1.105 | 0.110 | 281 | 79 | 9 | |
| WT-26-026 | 1.77 | 4.77 | 0.71 | 11.65 | 0.885 | 0.113 | 308 | 74 | 8 |
| 4.77 | 6.27 | 0.76 | 11.50 | 1.035 | 0.126 | 315 | 75 | 9 | |
| 6.27 | 6.60 | 0.67 | 12.35 | 1.800 | 0.142 | 258 | 77 | 17 |
Analytical Methods
Figure 1: Winston Tailings 2026 Vibracore Sample Result Locations for this Announcement
Table 2: Vibracore Sample Collar Locations and Tailings Depths
| WT-26-001 | 5424415 | 473016 | 464.1 | 0.6 | 6.6 | 6.0 |
| WT-26-002 | 5424415 | 473042 | 463.8 | 1.3 | 5.5 | 4.2 |
| WT-26-003 | 5424415 | 473091 | 463.4 | 1.1 | 9.3 | 8.2 |
| WT-26-004 | 5424415 | 473141 | 463.3 | 0.9 | 14.0 | 13.1 |
| WT-26-005 | 5424414 | 473191 | 464.0 | 1.0 | 6.9 | 5.9 |
| WT-26-007 | 5424364 | 473215 | 463.2 | 0.8 | 10.3 | 9.5 |
| WT-26-011 | 5424315 | 473090 | 464.4 | 0.6 | 3.1 | 2.5 |
| WT-26-011A | 5424315 | 473094 | 463.3 | 0.6 | 3.1 | 2.4 |
| WT-26-012 | 5424315 | 473140 | 463.7 | 0.5 | 11.7 | 11.2 |
| WT-26-013 | 5424314 | 473191 | 463.4 | 0.6 | 7.8 | 7.2 |
| WT-26-014 | 5424313 | 473235 | 464.2 | 0.6 | 4.3 | 3.7 |
| WT-26-015 | 5424263 | 473215 | 462.9 | 0.6 | 6.3 | 5.7 |
| WT-26-018 | 5424264 | 473065 | 463.3 | 0.6 | 4.1 | 3.5 |
| WT-26-021 | 5424214 | 473190 | 463.7 | 0.6 | 5.7 | 5.1 |
| WT-26-026 | 5424064 | 473165 | 462.1 | 0.8 | 6.6 | 5.8 |
Table Note: UTM Zone 16N NAD83 Datum. WT-26-011A drilled to test for a suspected false bottom encountered in WT-26-011. Table includes statistics for four Vibracore holes reported 17 March 2026. * Apparent tailings thickness and vertical profile tested by assays may differ. Depth figures rounded to 1 decimal place.
Background
Figure 2: Existing Infrastructure at Winston Tailings Storage Facility
References
( https://polaris.brighterir.com/public/panther_metals/news/rns/story/x20od6r )
On 9 February 2026 Panther announced plans for an approximately 2,000-metre diamond drilling program at the Wishbone Prospect, following the grant of an Exploration Permit in June 2024 valid through 2027. Previous work confirmed compelling VMS-style mineralisation, including 27.3m of massive sulphide and 51m of sulphide-dominated mineralisation across multiple lenses, supported by high-grade copper anomalies in lake sediments.
In July 2024, Panther secured an Exploration Permit for Awkward West, enabling up to 31 drill holes. Historic drilling returned 27.2m at 2.25% TGC, with zones exceeding 5% TGC, alongside indications of nickel, copper, and platinum group elements, aligning with the Company's critical minerals strategy.
Winston Tailings Project - Tailings Evaluation and MRE Pathway
Dotted Lake Project - Hemlo-Adjacent Polymetallic Opportunity
Commercial Strategy - Focused Value Creation
Cleaned text: letterheads, contacts and legal notices removed. View the original announcement ↗ · Company filings. Not investment advice.