REG - Panther Metals PLC - Winston Tailings Project: Batch 3 Assay Results
Today 07:02
For best results when printing this announcement, please click on link below:
https://newsfile.refinitiv.com/getnewsfile/v1/story?guid=urn:newsml:reuters.com:20260414:nRSN2822Aa&default-theme=true
RNS Number : 2822A Panther Metals PLC 14 April 2026
NOT FOR RELEASE, PUBLICATION OR DISTRIBUTION, IN WHOLE OR IN PART, DIRECTLY OR
INDIRECTLY IN OR INTO AUSTRALIA, CANADA, JAPAN, THE REPUBLIC OF SOUTH AFRICA,
THE UNITED STATES OR ANY OTHER JURISDICTION WHERE TO DO SO WOULD CONSTITUTE A
VIOLATION OF THE RELEVANT LAWS OF SUCH JURISDICTION
THIS ANNOUNCEMENT CONTAINS INSIDE INFORMATION FOR THE PURPOSES OF ARTICLE 7 OF
REGULATION 2014/596/EU WHICH IS PART OF DOMESTIC UK LAW PURSUANT TO THE MARKET
ABUSE (AMENDMENT) (EU EXIT) REGULATIONS (SI 2019/310) ("UK MAR"). UPON THE
PUBLICATION OF THIS ANNOUNCEMENT, THIS INSIDE INFORMATION (AS DEFINED IN UK
MAR) IS NOW CONSIDERED TO BE IN THE PUBLIC DOMAIN.
FOR IMMEDIATE RELEASE
PANTHER METALS PLC
("Panther" or the "Company")
(Incorporated in the Isle of Man with company number 009753V)
14 April 2026
Winston Tailings Project: Batch 3 Assay Results
Panther Metals PLC (LSE: PALM), the exploration company focused on mineral
projects in Canada, is very pleased to report the third batch ("Batch 3") of
Vibracore sample assay results for the Winston Tailings Project near
Schrieber, Ontario, Canada.
The Vibracore tailings sampling is in support of the Mineral Resource estimate
("MRE") programme, the first of a series of ongoing workstreams progressing to
quantify, evaluate and permit the contained high-grade gold (Au), gallium
(Ga), silver (Ag), zinc (Zn), copper (Cu), indium (In) and cobalt (Co) and
other recoverable minerals located within the historic Winston Lake Mine
tailings storage facility ("TSF").
Key points:
· Third batch of tailings core sample assay results (Table 1) received
for thirteen Vibracore collar locations (WT-26-016, WT-26-017, WT-26-020,
WT-26-027, WT-26-028, WT-26-030, WT-26-031, WT-26-032, WT-26-034, WT-26-049,
WT-26-050, WT-26-051 & , WT-26-052) situated upon six east-west profiles
(Figure 1).
· Assayed intersections reported for Batch 3 are taken from total
tailings thicknesses varying between 5.5m to 15.1m (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)
· Samples comprise HQ core (63.5mm) diameter cylinders of tailings
material through the vertical profile of the tailings, collected from the
surface of the tailings (situated below ice and water cover) to the base of
the tailings.
· 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:
"The Batch 3 Vibracore assay 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 3
Vibracore Vertical Depth (m) Au Ag Zn* Cu Co Ga In
Hole ID From To (g/t) (g/t) (%) (%) (ppm) (ppm) (ppm)
WT-26-016 3.27 4.77 0.513 13.85 1.025 0.1180 358.0 98.0 8.99
4.77 6.27 0.658 12.95 1.240 0.1240 362.0 85.9 10.05
6.27 7.77 0.757 12.15 2.650 0.1735 246.0 82.6 22.30
7.77 9.27 0.768 11.80 2.680 0.1810 278.0 81.0 20.30
9.27 10.65 0.446 10.85 2.430 0.2160 332.0 95.1 20.80
WT-26-017 3.27 4.77 0.420 12.75 1.240 0.1185 382.0 102.5 10.75
4.77 6.27 0.651 11.95 0.931 0.1045 367.0 87.7 7.72
6.27 7.77 0.586 10.95 1.830 0.1355 312.0 90.7 15.60
9.27 10.77 0.610 10.45 1.900 0.1335 320.0 85.4 14.75
10.77 11.37 0.168 5.02 1.145 0.0742 170.0 47.0 9.34
WT-26-020 3.27 4.77 0.578 14.85 1.115 0.1250 381.0 87.4 8.68
4.77 6.27 0.647 13.90 1.020 0.1185 353.0 83.8 8.06
6.27 7.77 0.799 13.90 1.670 0.1535 239.0 89.3 15.25
7.77 9.27 0.701 12.20 2.380 0.1865 305.0 91.2 19.35
9.27 9.62 0.630 12.20 2.700 0.1780 280.0 92.3 20.00
WT-26-027 3.27 4.77 0.233 8.60 1.425 0.1470 263.0 86.2 10.50
4.77 6.27 0.259 10.95 1.435 0.1215 301.0 97.3 14.15
6.27 7.77 0.388 15.05 3.400 0.1655 299.0 88.8 23.90
7.77 9.27 0.427 12.20 1.930 0.1155 316.0 89.4 13.75
9.27 9.51 0.558 11.50 1.145 0.1050 336.0 81.5 8.65
WT-26-028 3.27 4.77 0.657 10.05 1.510 0.1340 255.0 85.8 13.55
4.77 6.27 0.428 9.18 1.370 0.1455 269.0 81.2 10.25
WT-26-030 1.77 3.27 0.490 13.25 1.465 0.1245 385.0 109.5 12.90
3.27 4.77 0.419 11.65 0.787 0.1245 364.0 98.8 9.22
4.77 6.27 0.421 14.80 0.811 0.1225 438.0 95.2 10.40
6.27 7.77 0.529 14.60 0.922 0.1305 366.0 101.5 9.02
7.77 9.27 0.516 10.60 1.450 0.1105 267.0 85.7 10.90
9.27 10.77 0.460 10.40 1.295 0.1030 311.0 88.0 9.99
10.77 11.11 0.539 9.74 2.300 0.1115 224.0 73.1 13.85
WT-26-031 1.77 3.27 0.701 18.20 1.210 0.1900 387.0 106.0 13.20
3.27 4.77 0.752 22.70 1.090 0.2270 477.0 112.0 14.25
4.77 6.27 0.536 16.00 1.120 0.1445 356.0 95.4 11.55
6.27 7.77 0.508 13.50 1.090 0.1090 362.0 90.2 10.70
7.77 9.27 0.438 12.25 1.040 0.0964 324.0 84.3 9.52
9.27 10.77 0.540 16.05 1.565 0.1455 512.0 102.5 17.75
10.77 12.27 0.731 14.75 0.673 0.1050 344.0 110.5 6.63
12.27 12.68 0.771 16.55 0.802 0.1140 343.0 114.0 7.77
WT-26-032 2.00 3.27 0.693 11.05 1.160 0.1380 327.0 81.9 9.55
3.27 4.77 0.857 12.65 1.170 0.1220 374.0 93.6 9.91
4.77 6.27 0.731 11.60 1.410 0.1115 374.0 82.4 11.30
6.27 7.77 0.591 17.40 2.420 0.1865 520.0 126.0 30.00
7.77 9.27 0.438 12.00 1.165 0.1175 432.0 94.8 13.55
9.27 10.49 0.448 13.15 1.370 0.1110 433.0 96.2 11.45
WT-26-034 1.77 3.27 0.504 11.40 1.380 0.1370 378.0 94.6 12.00
3.27 4.77 0.572 12.35 1.755 0.1945 453.0 82.5 15.80
4.77 6.27 0.423 12.95 1.185 0.1150 395.0 91.3 11.40
6.27 7.77 0.619 14.65 0.755 0.1025 354.0 95.2 7.21
7.77 9.27 0.650 11.95 1.415 0.1410 252.0 81.0 11.35
9.27 10.77 0.662 12.50 1.330 0.1420 224.0 86.7 11.10
10.77 12.27 0.696 12.80 1.155 0.1210 172.0 81.7 8.47
12.27 13.77 0.741 14.60 1.265 0.1360 134.0 79.9 9.25
13.77 15.27 0.697 14.60 1.215 0.1160 178.5 84.4 8.54
15.27 16.27 0.723 13.80 1.310 0.1270 209.0 88.1 9.18
WT-26-049 4.77 6.27 0.190 6.64 0.874 0.0911 162.5 66.9 6.71
6.27 7.77 0.254 8.88 1.070 0.1165 210.0 81.3 8.72
7.77 9.27 0.279 8.31 0.940 0.1080 206.0 71.8 6.81
9.27 10.77 0.308 8.29 0.982 0.1095 193.0 72.4 7.44
10.77 12.27 0.264 7.73 1.255 0.1210 207.0 71.8 8.23
12.27 13.77 0.271 7.79 1.130 0.1225 199.5 74.9 7.92
13.77 14.67 0.263 7.37 1.335 0.1175 293.0 80.8 10.90
WT-26-050 4.77 6.27 0.369 7.90 0.840 0.1030 172.5 76.4 6.01
6.27 7.77 0.333 8.58 1.065 0.1110 181.0 70.3 8.81
7.77 9.27 0.274 8.09 1.140 0.1155 234.0 78.1 10.30
9.27 10.77 0.273 8.00 1.045 0.1165 208.0 83.9 9.16
10.77 12.27 0.292 8.12 0.973 0.1180 195.5 81.6 8.62
12.27 13.53 0.273 8.52 1.045 0.1180 198.0 82.4 8.64
WT-26-051 11.60 13.10 0.354 8.73 1.270 0.1155 239.0 77.5 9.42
13.10 14.60 0.208 9.89 1.660 0.1585 254.0 92.6 13.25
14.60 16.10 0.223 10.25 1.405 0.1570 311.0 108.0 13.50
16.10 17.60 0.261 8.71 1.575 0.1100 337.0 99.0 13.25
17.60 19.10 0.240 7.63 1.560 0.1085 402.0 98.7 12.75
WT-26-052 7.10 8.60 0.203 11.90 1.070 0.0890 93.7 37.3 6.81
8.60 10.10 0.277 30.30 1.270 0.1170 159.5 47.5 8.88
10.10 11.60 0.292 16.65 1.250 0.1205 171.0 54.3 8.72
11.60 13.10 0.456 9.88 1.640 0.1695 263.0 76.1 12.45
16.10 17.16 0.431 8.21 1.490 0.1530 203.0 64.5 10.75
Table Note: Assay results by ALS Laboratory methods ME-MS61, Au-ICP21 (for
gold) and Zn-OG62 (for Zn>1%). * Zinc results >1% Zn by method Zn-OG62,
Zn <1% by method ME-MS61. Batch 2 samples reported under ALS certificate
TB26067642. Future sample batches may contain further results for the reported
Hole IDs.
Analytical Methods
The certified assay results are by ALS Laboratories using four-acid super
trace multielement method ME-MS61 (four-acid digestion for near-total recovery
across a suite of 48 elements), Au-ICP21 (gold by fire assay with an
inductively coupled plasma atomic emission spectroscopy finish) and Zn-OG62
(four-acid overlimit method for high-grade zinc).
Figure 1: Winston Tailings 2026 Vibracore Sample Result Locations for this
Announcement
Table 2: Vibracore Sample Collar Locations and Tailings Depths
Vibracore Hole ID (#) UTM Northing UTM Easting Collar Elevation (m) Depth to Tailings Surface (m) Depth to Tailings Base (m) Tailings Thickness* (m)
WT-26-001 5424415 473016 464.1 0.7 6.6 5.9
WT-26-002 5424415 473042 463.8 1.3 5.5 4.2
WT-26-003 5424415 473091 463.4 1.07 9.3 8.2
WT-26-004 5424415 473141 463.3 0.86 14.0 13.1
WT-26-005 5424414 473191 464.0 0.99 6.9 5.9
WT-26-007 5424364 473215 463.2 0.76 10.3 9.5
WT-26-011 5424315 473090 464.4 0.56 3.1 2.5
WT-26-011A 5424315 473094 463.3 0.64 3.1 2.4
WT-26-012 5424315 473140 463.7 0.51 11.7 11.2
WT-26-013 5424314 473191 463.4 0.56 7.8 7.2
WT-26-014 5424313 473235 464.2 0.58 4.3 3.7
WT-26-015 5424263 473215 462.9 0.56 6.3 5.7
WT-26-016 5424263 473166 462.8 0.64 10.7 10.0
WT-26-017 5424264 473115 462.8 0.69 11.4 10.7
WT-26-018 5424264 473065 46.3 0.61 4.1 3.5
WT-26-020 5424214 473141 462.8 0.68 9.6 8.9
WT-26-021 5424214 473190 463.7 0.64 5.7 5.1
WT-26-026 5424064 473165 462.1 0.76 6.6 5.8
WT-26-027 5424464 473215 462.8 0.89 9.5 8.6
WT-26-028 5424465 473165 462.5 0.81 6.3 5.5
WT-26-030 5424463 473065 462.6 0.73 11.1 10.4
WT-26-031 5424463 473015 463.2 0.9 12.7 11.8
WT-26-032 5424464 472966 462.4 2 10.5 8.5
WT-26-034 5424514 472989 462.6 1.2 16.3 15.1
WT-26-049 5424663 473016 462.7 2.5 14.7 12.2
WT-26-050 5424713 472991 463.7 2.1 13.5 11.4
WT-26-051 5424714 472940 463.5 6.4 19.6 13.2
WT-26-052 5424713 472890 463.8 6.7 17.2 10.5
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
all Vibracore holes reported to 14 April 2026. * Apparent tailings thickness
and vertical profile tested by assays may differ. Depth figures rounded to 1
decimal place. Depth to tailings of WT-26-001 amended from 0.6m to 0.7m.
Further Information
The Winston Tailings Project Vibracore sampling grid comprises a total of 109
collar locations, staggered at a nominal spacing of 50m along east-west fence
lines spaced at 25m north-south, for an effective horizontal sample spacing
averaging either 25m or 35m between fences. Duplicate 'twin' core material was
retrieved at 3 locations, whilst vertical profiles were restarted at 6 of the
locations. The completed sample grid measures up to 904m along the long axis
and up to 230m perpendicular to the TSF long axis.
Vibracore tailings cylinders are logged and sampled by Bayside Geoscience Ltd
in the city of Thunder Bay, with sample batches submitted to ALS Laboratories
for geochemical analysis in support of the Mineral Resource estimate.
The MRE is an integral part of the process to advance the Winston Tailing
Project towards a cashflow proposition and will be based upon the resource
sampling programme, mineralogical and metallurgical testwork and associated
studies. The MRE work will also provide inputs into the Application for
Recovery of Minerals Permit (the "Recovery Permit") process as announced 1
September 2025.(4, 5)
Background
The Winston Tailings Project entails a series of workstreams to quantify,
evaluate and permit the contained high-grade gold (Au), gallium (Ga), silver
(Ag), zinc (Zn), copper (Cu) and cobalt (Co) and other recoverable minerals
located within the historic Winston Lake Mine tailings storage facility
(Figure 2). Based on historic processing recoveries it is believed that a
significant quantity of valuable material was not captured and remains in the
tailing storage facility. Reprocessing the mine tailings, potentially offers
Panther the opportunity to unlock residual metal value and contribute to the
long-term environmental rehabilitation of the Winston Project site.
The Winston Lake Mine was operational from 1988 to 1998, producing
approximately 3.3 million tonnes of ore and yielding zinc, copper, silver, and
gold. Based on historic recoveries from mining activities in the 1980s and
1990s, it is believed that a significant quantity of valuable material remains
in the tailing storage facility.
Source: NI 43-101 Technical Report Feasibility Study for the Superior Zinc and
Copper Project, 2021. Site is connected to high-voltage grid power.
Figure 2: Existing Infrastructure at Winston Tailings Storage Facility
Qualified Person Statement
Technical information in this announcement has been prepared by Nicholas
O'Reilly BSc (Hons) MSc DIC MIMMM (QMR) MAusIMM FGS, a director of the
Company. He has over 20 years' experience in mining, exploration and
development across all major commodities and is a Qualified Person ("QP") as
defined in NI 43-101 and is the Competent Person for UK Listing Rules
purposes.
References
1. Panther Metals PLC, announcement, Winston Tailings
Project: Batch 1 Assay Results, dated 17 March 2026 (
https://polaris.brighterir.com/public/panther_metals/news/rns/story/xo9z89x )
2. Panther Metals PLC, announcement, Winston Tailings
Project: Sample Collection Complete, dated 16 March 2026 (
https://polaris.brighterir.com/public/panther_metals/news/rns/story/xjl3qkw )
3. Panther Metals PLC, announcement, Winston Tailings
Assays Confirm Gold, Gallium, Silver, Zinc, Copper & Cobalt, Tailings
Sample Assay Results Exceed Expectations, dated 31 July 2025 (
https://polaris.brighterir.com/public/panther_metals/news/rns/story/w00eo6w
(https://polaris.brighterir.com/public/panther_metals/news/rns/story/w00eo6w)
)
4. Panther Metals PLC, announcement, Winston Tailings
Project Update and Warrant Expiry, Permitting Process Commenced. Warrant
Expiry Notice , dated 1 September 2025
( https://polaris.brighterir.com/public/panther_metals/news/rns/story/x20od6r
(https://polaris.brighterir.com/public/panther_metals/news/rns/story/x20od6r)
)
5. Recovery of Minerals Permitting process details
available at https://www.ontario.ca/page/recovery-minerals
(https://www.ontario.ca/page/recovery-minerals)
For further information, please contact:
Panther Metals PLC: +44 (0)1462 429 743
Darren Hazelwood, Chief Executive Officer:
+44 (0)7971 957 685
Brokers:
Optiva Securities Limited +44 (0)20 3137 1902
Christian Dennis
Mick McNamara
Hybridan LLP +44 (0)20 3764 2341
Claire Louise Noyce
SI Capital Limited +44 (0)1438 416 500
Nick Emerson
Obonga Project - Advancing a High-Impact VMS and Critical Minerals District
Panther Metals' Obonga Project in Ontario continues to demonstrate strong
potential as a district-scale exploration opportunity targeting base and
critical minerals. Since acquiring the Obonga Greenstone Belt in July 2021,
the Company has advanced multiple high-priority targets including Wishbone,
Awkward, Survey, Ottertooth, and Silver Rim.
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.
High-resolution magnetic and electromagnetic surveys continue to refine drill
targeting across Obonga. Survey and Ottertooth remain highly prospective,
hosting multiple untested geophysical anomalies and historic massive sulphide
intercepts.
Winston Tailings Project - Tailings Evaluation and MRE Pathway
Panther Metals' Winston Project represents a near-term, development-focused
opportunity centred on the evaluation of historic mine tailings and has been
the subject of prior technical and commercial assessment involving Extrakt.
Current work is focused on tailings sampling, metallurgical testing, and data
validation to define metal content, recoverability, and support the
preparation of a NI 43-101 compliant Mineral Resource estimate (MRE). This
approach provides a clear value-creation pathway with lower geological risk
than greenfield exploration and aligns with modern reprocessing and critical
mineral's themes.
Dotted Lake Project - Hemlo-Adjacent Polymetallic Opportunity
Panther Metals' Dotted Lake Project, acquired in July 2020, is located
approximately 16km from Barrick Gold's Hemlo Mine, within a well-established
mining region.
Early exploration identified multiple gold and base metal anomalies, with
initial drilling confirming gold mineralisation. In early 2025, follow-up
drilling materially advanced the project, confirming nickel and magnesium
mineralisation within an ultramafic intrusion and identifying a VMS-style
system, significantly expanding the project's polymetallic potential.
The program refined structural controls, extended mineralisation, and
identified multiple new drill targets, positioning Dotted Lake as a
high-upside, multi-commodity exploration asset.
Commercial Strategy - Focused Value Creation
Panther Metals is focused on disciplined, discovery-driven value creation
through efficient capital deployment and technical execution. With Obonga
delivering high-impact exploration, Winston providing a resource-focused
development pathway, and Dotted Lake offering polymetallic upside, the Company
maintains a balanced portfolio aligned with favourable commodity market
conditions.
The Company's strategy is to advance high-quality assets along the most
efficient technical pathway, delivering tangible milestones that underpin
long-term shareholder value.
This information is provided by RNS, the news service of the London Stock Exchange. RNS is approved by the Financial Conduct Authority to act as a Primary Information Provider in the United Kingdom. Terms and conditions relating to the use and distribution of this information may apply. For further information, please contact
rns@lseg.com (mailto:rns@lseg.com)
or visit
www.rns.com (http://www.rns.com/)
.
RNS may use your IP address to confirm compliance with the terms and conditions, to analyse how you engage with the information contained in this communication, and to share such analysis on an anonymised basis with others as part of our commercial services. For further information about how RNS and the London Stock Exchange use the personal data you provide us, please see our
Privacy Policy (https://www.lseg.com/privacy-and-cookie-policy)
. END DRLBXLLFQZLFBBB
Copyright 2019 Regulatory News Service, all rights reservedRecent news on Panther Metals
See all newsREG - Stock Exch Notice - Admission to Trading - 14/04/2026
AnnouncementREG - Panther Metals PLC - Winston Tailings Project: Batch 3 Assay Results
AnnouncementREG - Panther Metals PLC - Board changes, issue of equity
AnnouncementREG - Panther Metals PLC - Result of General Meeting
AnnouncementREG - Panther Metals PLC - Winston Tailings Project: Batch 2 Assay Results
Announcement