REG - Great Western Mining - Au-Ag-Cu Mineralisation Confirmed at West Huntoon

Great Western MiningAnnouncement

22/01/2026 07:00

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RNS Number : 8376P  Great Western Mining Corp. plc  22 January 2026

22 January 2026

GREAT WESTERN MINING CORPORATION PLC

("Great Western", "GWM" or the "Company")

 

Au-Ag-Cu Mineralisation Confirmed at West Huntoon

 

Great Western Mining Corporation PLC (AIM - GWMO, Euronext Growth - 8GW) is
pleased to announce the assay results of a Reverse Circulation ("RC") drilling
campaign at its West Huntoon Gold-Silver-Copper Project in Nevada USA ("the
Project").

 

HIGHLIGHTS

·    Six RC drill holes successfully drilled at West Huntoon, totalling
3,630 ft (1,106.4 metres) (Figure 1) providing valuable new insights into the
precious and base metal mineralisation of the Project.

·    Precious metal Au-Ag mineralisation is now found to be associated
with Cretaceous "Crown Point" granite (Figure 1, Table 1).

·    Highlight metal intercepts include:

o  25 ft @ 1.01 g/t Au and 11.00 g/t Ag (including 5 ft @ 2.55 g/t Au and
19.00 g/t Ag);

o  15 ft @ 1.67 g/t Au and 2.34 g/t Ag (including 5ft @ 4.01 g/t Au and 2.74
g/t Ag);

o  5 ft at @ 1.06 g/t Au and 8.54 g/t Ag; and 85 ft @ 3.00 g/t Ag (Table 1).

·    Elevated pathfinder elements including barium (Ba, consistently
>2,000 ppm), arsenic (As, various 5ft intervals >1000 ppm and up to 3670
ppm), lithium (Li, consistently >20 ppm) and antimony (Sb, various
intervals >4 ppm) in all drill holes indicate a shallow component of a
magmatic-hydrothermal system.

·    Previously unexamined material from historic RC and diamond core
drilling has recently been obtained by the Company and will be logged and
assayed.

·    Detailed geological mapping and sampling of epithermal features
across the property is ongoing.

 

Great Western Chairman Brian Hall commented: "The results of our focused but
limited drilling campaign over part of the vast area which makes up the
Huntoon Copper Project have delivered strong potential for significant gold
and silver mineralisation in addition to the copper potential which we had
already established.  Confirmation of precious metals mineralisation over the
Crown Point area is a major advance for the Company and will add an important
new dimension to our 2026 exploration plans as we move forward, which will
include further testing of the Crown Point granite.

 

"In particular, these results establish the gold and silver fertility of the
Crown Point granite which had never previously been recognised until
identified by the GWM team in 2023.  This will help us better understand the
soil and rock anomalies we have extensively mapped at surface. Assessment of
the fertile granite will be a focus at West Huntoon, together with additional
work targeting and delineating copper.  Further testing of the Crown Point
granite will be a major play moving forward.

 

"Notably, this work sits alongside a broader, multi-commodity exploration
portfolio located within the Walker Lane Trend, a tier-one, mining-friendly
jurisdiction with world-class geology, established infrastructure and low
geopolitical risk, aligned with the U.S. 'America First Metals' strategy to
strengthen domestic supply chains. This includes our strategic tungsten
targets, where we expect to receive results shortly from trench sampling
following previously identified anomalous soil results."

 

Table 1: Highlight intervals from the West Huntoon 2025 RC drilling campaign.
Co-ordinates in EPSG 26911

 

 Hole     Collar             Hole Incl./Azi.  From (ft)  To (ft)  Apparent thickness (ft)  Au, g/t  Ag, g/t  Cu, ppm  Including
          X         Y
 WHRC006  363098.7  4225866  50/0             180        205      25                       1.01     11.00    119      5 ft at 2.55 g/t Au, 19.00 g/t Ag
 WHRC005  363100.9  4225865  90/0             110        115      5                        1.06     8.54     240
          190                275                         85                                0.09     3.00     65
 WHRC004  362871.6  4225707  90/0             85         100      15                       1.67     2.34     1352     5 ft at 4.01 g/t Au, 2.74 g/t Ag
          575                610                         35                                0.18     1.58     646
 WHRC003  362816.8  4225728  90/0             780        790      10                       0.06     1.39     2435
 WHRC001  362890.3  4225642  90/0             225        235      10                       0.03     1.21     2475
          245                255                         10                                0.03     0.79     1605

 

 

 

 

 

 

 

 

 

 

 

 

Figure 1: Satellite image and simplified geological map of the West Huntoon
project, with previously reported grab and soil samples and drill hole collars
from this campaign plotted. Coordinates in EPSG 26911.

 

BACKGROUND

The West Huntoon Gold-Silver-Copper Project is part of the Huntoon Copper
Project, located in Mineral County, Nevada, within the Walker Lane Structural
Belt. Late Proterozoic to Mesozoic rocks, mainly Permian Mina Formation and
Jurassic Dunlap Formation, outcrop in the project area, intruded by Cretaceous
granites, granodiorites and diorites, which are largely covered by
post-mineral Tertiary volcanics. The Cretaceous "Crown Point" granite,
recently discovered and mapped by the Company, contains textural evidence for
having hosted magmatic-hydrothermal fluid flow and mineralisation.

 

The 2025 RC drilling programme at the West Huntoon Prospect was designed to
test the potential for magmatic-hydrothermal type mineralisation associated
with coincident geologic mapping, soil and rock chip Cu-Au-Ag geochemical
anomalies and IP geophysical targets.  Six holes together totalling 3,630
ft/1,106.4 metres were completed.

 

Additionally, in 2025, the Company obtained previously unexamined material
from historical RC and diamond drilling at West Huntoon. The Company plans to
log and assay this material in the near-term, whilst also undertaking further
detailed mapping and sampling of epithermal mineralised features across the
wider West Huntoon area.

 

ADDITIONAL INFORMATION

RC chip samples were collected at 5ft intervals and submitted to ALS
laboratories, Reno, Nevada. Samples were analysed by methods ME-MS61 and
Au-AA25. Quality control samples (duplicates, blanks and certified reference
materials) were inserted by the Company and results reviewed prior to release.
Down hole surveys were completed for every hole.

 

QUALIFIED PERSON STATEMENT

The information in this announcement that relates to exploration results is
based on information reviewed by Dr Lawrence Carter MSc PhD MAusIMM who is an
Independent Geological Consultant. Dr Carter is a "Qualified Person" as
defined in the "Note for Mining and Oil & Gas Companies" which form part
of the AIM Rules for Companies. Dr Carter has reviewed and consented to the
inclusion in the announcement of the information in the form and context in
which it appears.

 

ENDS

 

For further information visit www.greatwesternmining.com
(http://www.greatwesternmining.com) or contact

 

 Great Western Mining Corporation PLC

  Brian Hall, Chairman                                              c/o St Brides

 Max Williams, Finance Director                                     greatwesternmining@stbridespartners.co.uk

 Davy

 Nominated Adviser, Euronext Growth Adviser & Joint Broker

 Brian Garrahy

                                                                    +353 (0)1 679 6363

 Shard Capital Partners

 Joint Broker

 Andrew Gutmann / Erik Woolgar                                      +44 (0)20 7186 9008

 St Brides Partners

 Financial PR

 Susie Geliher / Isabel de Salis / Will Turner                      greatwesternmining@stbridespartners.co.uk

 

Notes

Great Western Mining Corporation PLC (AIM: GWMO / Euronext Growth: 8GW) is a
diversified exploration and development company focused on strategic minerals
across several 100%-owned claim groups in Mineral County, Nevada, one of the
world's most prolific and mining-friendly jurisdictions. Backed by an
experienced team, the Company is pursuing a multi-commodity strategy targeting
near-term development and longer-term exploration while assessing farm-out and
joint venture opportunities to unlock broader portfolio value. As well as its
flagship Huntoon Copper Project, which hosts a JORC-compliant resource of 4.3
Mt at 0.45% Cu, with upside from undrilled porphyry targets, it has a pipeline
of gold, silver, and early-stage tungsten assets aligned with US critical
minerals priorities.

 

 

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