Guardian Metal公布内华达Pilot Mountain钨矿Tremor与Good Hope新区正面钻探结果，支持潜在资源增长

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6-K
1
a5366u.htm
DRILLING RESULTS SUPPORT POTENTIAL RESOURCE GROWTH
a5366u
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
FORM 6-K
REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16
OF THE SECURITIES EXCHANGE ACT OF 1934
14 September, 2026
Commission File Number 001-43199
Guardian Metal Resources PLC
c/o Orana Corporate LLP
25 Eccleston Place
London SW1W 9NF
United Kingdom
(Address
of principal executive offices)
Indicate
by check mark whether the registrant files or will file annual
reports under cover of Form 20-F or Form 40-F.
Form 20-F
☒
Form 40-F
☐
Indicate
by check mark if the registrant is submitting the Form 6-K in paper
as permitted by Regulation S-T Rule 101(b)(1): ___
Indicate
by check mark if the registrant is submitting the Form 6-K in paper
as permitted by Regulation S-T Rule 101(b)(7): ____
Guardian
Metal Resources PLC
On 14
September, 2026, Guardian Metal Resources PLC issued a press
release titled
“Drilling Results Support
Potential Resource Growth.”
A copy
of the press release is attached hereto as Exhibit
99.1.
SIGNATURE
Pursuant
to the requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this report to be signed on behalf by
the undersigned, thereunto duly authorized.
Guardian Metal Resources PLC
(Registrant)
Date:
14 September, 2026
By: /s/
Oliver Friesen
Name:
Oliver Friesen
Title:
Chief Executive Officer
Exhibit Index
Exhibit
Description of Exhibit
99.1
Drilling Results Support Potential Resource Growth dated 14
September, 2026.
14 September 2026
Guardian Metal Resources plc
('Guardian Metal' or the 'Company')
Tungsten Drilling Results Support Potential Resource Growth
at Pilot Mountain
Guardian Metal Resources plc (NYSE.A: GMTL, LON: GMET, OTCQB:
GMTLF), a strategic exploration and development company focused on
tungsten in Nevada, USA, is pleased to announce positive tungsten
drilling results from the newly discovered Tremor Zone and the
previously untested Good Hope Zone both located on its 100%-owned
Pilot Mountain tungsten project (“Pilot Mountain” or
the “Project”) in Nevada. The drilling results provide
further evidence of the potential to expand the mineralization
identified at Pilot Mountain beyond the mineral resources
incorporated into the recently completed Pre-Feasibility Study
(“PFS”).
The Tremor Zone, a blind tungsten-skarn discovery announced on 4
June 2026, was identified by the Company's in-house technical team
while drilling a target adjacent to the tailings storage facility
("TSF") proposed in the recently completed PFS. The drilling
results achieved to date have prompted a relocation of
the planned TSF, which requires a revised design but is not
expected to materially affect project costs or timeline.¹
Following the receipt of results from the discovery hole PMR26-077,
follow-up drilling has been undertaken to test the Tremor Zone's
extent along strike and at depth. In parallel, the Company has
completed its first-ever drill holes at the Good Hope Zone, one of
the Project's at-surface skarn targets that had, until now,
remained untested by the Company.
Highlights
■
Extensive tungsten mineralization confirmed over
200m strike distance at the Tremor Zone (north), with
mineralization remaining
open in multiple directions,
providing future potential to supplement
the Pilot Mountain mineral resources. Drill
results for the Tremor Zone (south) are
pending.
■
Tremor Zone
(north)
significant
downhole drill hole intersections included:
o
PM26-088:
64.15m @ 0.20%
WO
3
from
139.97m, including:
-
14.27m
@ 0.34% WO
3
from
147.68m;
o
PMR26-078:
15.20m @
0.28%WO
3
from
259.08m;
o
PM26-090:
5.11m @ 0.34%
WO
3
from
101.19m.
o
PM26-097 intersected
several zones of tungsten
mineralization
,
including
-
16.60m
@ 0.19% WO
3
from
53.23m downhole including 10.77m @ 0.23% WO
3
from
59.06m;
-
44.08m
@ 0.18% WO
3
from
86.03m downhole including 6.17m @ 0.22% WO
3
from
86.03m, and also including 10.84m @ 0.27% WO
3
from
111.42m; and,
-
6.68m
@ 0.23% WO
3
from
144.72m.
■
Good
Hope Zone drilling returned multiple tungsten drill intersections
from near surface, located within 1.1 to 1.3km of the existing
Pilot Mountain mineral resource areas. Good Hope downhole drill
hole intersections included:
o
GH26-01:
12.95m @ 0.79%
WO
3
from
12.19m;
o
GH26-02:
13.11m @ 0.42%
WO
3
from
2.13m. GH26-01 and GH26-02 were twinned holes, with the latter
being drilled to recover the upper part of the zone and together
they represent a combined apparent thickness
of
23
meters which carries an average grade of 0.58%
WO
3
;
and,
o
GH26-07:
13.32m @ 0.15%
WO
3
from
65.84m.
Notes:
No Mineral Resource Estimate has been
prepared for the Tremor Zone or the Good Hope Zone and further
drilling and evaluation will be required to determine their
significance to the broader Pilot Mountain Project. Significant
mineralized intersections of 5m apparent width at or above the PFS
Desert Scheelite and Garnet deposit Mineral Resource Estimate
cut-off grade of 0.04% WO
3
are
summarized in Table 1 and Table 2. Drill collar locations are
stated in Table 3 and shown in Figure 1.
Oliver Friesen, CEO of Guardian Metal,
commented:
"We have always maintained that Pilot Mountain has significant
exploration upside, and these results reinforce the potential to
expand tungsten mineralization beyond the mineral resources that
underpin our recently completed Pre-Feasibility Study. The Tremor
Zone did not form part of the PFS mineral resource, yet drilling
continues to highlight meaningful size and scale, with
mineralization remaining open in multiple directions. This has been
sufficient for us to relocate the proposed TSF and preserve the
option to incorporate the Tremor Zone into a future mine plan. At
the Good Hope Zone, the first holes ever drilled have returned
strong tungsten grades from surface, close to the existing resource
areas.
"With numerous exploration targets still to be drill tested, we see
potential to add further tungsten resources, subject to further
drilling and evaluation, while the DFS, engineering and permitting
advance in parallel and at pace as we work to make Pilot Mountain
the first new tungsten mine on U.S. soil in over a
decade."
Further Details
Tremor Zone
The Tremor Zone is a blind tungsten-skarn discovery that is
obscured by alluvial cover with no direct surface outcrop.
Mineralization was identified during condemnation drilling
completed within an area that was under consideration as a location
for the TSF. The initial discovery drillhole, PMR26-077 (reported
on 4 June 2026), intersected five distinct zones of tungsten-rich
skarn mineralisation.
1
To date, 8,140 meters across 37 holes of combined core and reverse
circulation (“RC”) drilling targeting the Tremor Zone
and other condemnation targets has been completed, with the
majority of Tremor Zone assays still pending. Mineralization has
been confirmed in two separate areas, the northern and southern
Tremor Zones, with drilling to date focused on the northern zone.
Within the northern zone, mineralization has been confirmed over
~200m of strike extent and ~190m of dip extent and mineralization
remains open in multiple directions. Results are still pending for
the southern zone which has been intersected in one hole located
180m south of the northern zone and remains open for extension in
multiple directions.
The Tremor Zone is located within a part of the Pilot Mountain
Project that is royalty free. While the Tremor Zone was not
incorporated into the PFS, the Company has retained flexibility
within its infrastructure planning to allow for its potential
inclusion in future studies, subject to further drilling and
technical evaluation.
Good Hope Zone
The Good Hope Zone is one of the Project's at-surface tungsten
skarn zones, which had been identified as offering resource growth
potential. Mineralization is exposed in a window below younger
Tertiary volcanics and is hosted in east-west striking, gently
north-dipping beds of Luning Formation limestone adjacent to a
large body of quartz monzonite intrusion, which is the causative
intrusive phase across Pilot Mountain. The Good Hope Zone is
located ~1.3km north of the Desert Scheelite resource area and
~1.1km east of the Garnet resource area. Mineralization at the Good
Hope Zone has been defined over a strike length of ~100m starting
from surface and down dip for ~65 meters. Mineralization is bound
on the west by post-mineral faulting, which opens exploration and
expansion potential seeking the offset portion of the
zone.
The inaugural drill programme at the Good Hope Zone comprised
1,682m of combined core and RC drilling across 13 holes. Results
confirm near surface high-grade mineralization and the potential to
add new mineral resources in the future.
Assay Results and Collar Table
Table 1: Tremor Zone Significant Downhole
Intersections
Drillhole ID
From (m)
To (m)
Length (m)
WO3 (%)
Zn (%)
Ag (ppm)
Cu (%)
PMR26-078
259.08
274.32
15.20
0.28
0.06
16.74
0.01
PMR26-079
251.46
259.08
7.60
0.13
0.47
86.32
0.02
PM26-088
139.97
204.12
64.15
0.20
0.32
3.76
0.08
incl
147.68
161.95
14.27
0.34
0.59
5.09
0.08
PM26-090
101.19
106.30
5.11
0.34
0.74
153.31
0.76
and
129.24
139.00
9.75
0.12
0.38
25.45
0.01
and
144.54
162.00
17.46
0.07
0.18
0.81
0.01
incl
147.41
155.05
7.64
0.10
0.24
0.63
0.01
PM26-097
53.23
69.83
16.60
0.19
2.09
16.90
0.12
incl
59.06
69.83
10.77
0.23
3.12
23.76
0.15
and
86.03
130.31
44.08
0.18
0.40
57.23
0.03
incl
86.03
92.20
6.17
0.22
0.51
203.87
0.01
and incl
111.42
122.26
10.84
0.27
0.92
3.79
0.05
and
144.72
151.40
6.68
0.23
0.06
10.53
0.57
Note:
Only material intercepts of at least 5m apparent width at the PFS
resource cut-off grade of
>
0.04%
WO
3
are
included.
Weighted
composite grades based on MSA Labs certified assay results from
analytical method codes: ICP-230; WRX-4W;
ICA-6Ag; ICF-6Zn and ICF-6Cu.
Table 2: Good Hope Zone Significant Downhole
Intersections
Drillhole ID
From (m)
To (m)
Length (m)
WO3 (%)
Zn (%)
Ag (ppm)
Cu (%)
GH26-01
12.19
25.14
12.95
0.79
0.49
7.90
0.79
GH26-02*
2.13
15.24
13.11
0.42
0.34
23.17
0.12
GH26-06
64.29
76.05
11.76
0.08
0.49
10.51
0.51
GH26-07
65.84
79.16
13.32
0.15
1.59
4.11
0.14
GH26-08
53.16
61.04
7.88
0.18
1.24
3.52
0.05
Notes: *Re-drill of
the upper portion of GH26-01 where no core was recovered. Only
material intercepts of at least 5m apparent width at the PFS
resource cut-off grade of
>
0.04% WO
3
are
included.
Weighted
composite grades based on MSA Labs certified assay results from
analytical method codes: ICP-230; WRX-4W; ICA-6Ag; ICF-6Zn and
ICF-6Cu.
Holes PMR26-081 through PMR26-087,
091, 093 and 094 totaling 2,200 meters were drilled as condemnation
holes to target infrastructure areas and confirmed no additional
mineralization was present. PMR26-080, PM26-089, 092, 095 and
GH26-03 through 05 and RGH-01 through 03 were Tremor or Good Hope
Zone exploration step-out holes totaling 1,999m drilled that did
not intercept mineralization above a material grade and thickness
cut-off of 5m at 0.04% WO
3
.
PM26-096 intercepted significant visual scheelite mineralization
and assays are still pending.
Table 3: Drill Hole Collar Table for Holes with Significant
Downhole Intersections
Drillhole ID
Type
Zone
UTM Easting
UTM Northing
Elevation (m)
Azimuth
Dip
Hole Depth (m)
PMR26-078
RC
Tremor
425072
4248157
1853
270
-45
303
PMR26-079
RC
Tremor
425072
4248160
1853
250
-45
303
PM26-088
Core
Tremor
424816
4248146
1883
45
-60
246
PM26-090
Core
Tremor
424818
4248148
1883
135
-50
200
PM26-097
Core
Tremor
424949
4248124
1866
265
-50
263
GH26-01
Core
Good Hope
423941
4249670
1962
0
-90
97
GH26-02
Core
Good Hope
423940
4249670
1962
0
-90
15
GH26-06
Core
Good Hope
423941
4249745
1948
230
-45
116
GH26-07
Core
Good Hope
423867
4249696
1973
308
-80
121
GH26-08
Core
Good Hope
423871
4249695
1973
140
-50
124
Notes: UTM Zone 11 WGS84 datum. RC = Reverse Circulation Drill
Hole. Core = Diamond Core Drill Hole
Quality Control and Assurance
All samples were submitted to MSA Labs (MSA) of Elko, Nevada which
is an ISO9001 and ISO/IEC 17025 accredited laboratory. Samples were
analyzed using method ICP-230, with any samples
returning
>
450
ppm W being re-run using lithium borate fusion XRF analyses method.
Guardian Metal’s QA/QC program includes regular insertion of
standards, duplicates and blanks into the sample stream with
stringent review of all results.
Figure 1: Map of Drill Holes Showing Planned PFS Pits, Mine
Infrastructure, Waste Rock Storage Facility and Revised Tailings
Storage Facility Locations
Figure Notes: Garnet Pit and Desert Scheelite Pit outlines
represent the extents of the planned open pits modelled in the
recent Pre-Feasibility Study. WRSF = Waste Rock Storage Facility.
TSF = Tailings Storage Facility.
References
1 Company
announcement,
Discovery of Tremor Zone at
Pilot Mountain Tungsten Project
, dated 4 June 2026
(
https://polaris.brighterir.com/public/guardian_metal_resources/news/rns/story/xlnlypw
)
2 Company
announcement,
U.S. Department of Defense
Awards US$6.2M to Golden Metal Resources for the Pilot Mountain
Project
, dated 23 July
2025
(
https://polaris.brighterir.com/public/guardian_metal_resources/news/rns/story/wvm0n3w
)
COMPETENT PERSON STATEMENT
The technical information contained in this disclosure has been
read and approved by Mr Nicholas O'Reilly (MSc, DIC, MIMMM QMR,
MAusIMM, FGS), who is a qualified geologist and acts as the
Competent Person under the AIM Rules - Note for Mining and Oil
& Gas Companies. Mr O'Reilly is a Principal consultant working
for Mining Analyst Consulting Ltd which has been retained by
Guardian Metal Resources plc to provide technical
support.
This announcement contains inside information for the purposes of
Article 7 of EU Regulation 596/2014 (which forms part of
domestic UK law pursuant to the European Union
(Withdrawal) Act 2018). The Directors of the Company are
responsible for this announcement.
Forward Looking Statements
This announcement contains forward-looking statements relating to
expected or anticipated future events and anticipated results that
are forward-looking in nature and, as a result, are subject to
certain risks and uncertainties, including general economic, market
and business conditions, competition for qualified staff, the
regulatory process and actions, technical issues, new legislation,
potential delays or changes in plans, uncertainties resulting from
operating in a new political jurisdiction, uncertainties regarding
the results of exploration, the timing and granting of prospecting
rights, the timing and granting of regulatory and other third party
consents and approvals, Guardian Metal’s or any third
party’s ability to execute and implement future plans, and
the occurrence of unexpected events.
Forward-looking statements are subject to risks and uncertainties,
including those described in the Company’s filings with the
U.S. Securities and Exchange Commission. Guardian Metal undertakes
no obligation to publicly update or revise any forward-looking
statements, whether as a result of new information, future events
or otherwise, except as may be required by law.
This announcement does not purport to be full or complete. No
reliance may or should be placed by any person for any purpose on
the information contained in this announcement or its accuracy,
fairness or completeness. The information in this announcement is
subject to change.
For further information visit
www.Guardianmetalresources.com
or
contact the following:
Guardian Metal Resources plc
Oliver
Friesen (CEO)
Tel: +44
(0) 20 7583 8304
Cairn Financial Advisers LLP
Nominated Adviser
Sandy
Jamieson/Jo Turner/Louise O'Driscoll
Tel:
+44 (0) 20 7213 0880
Berenberg
Joint Broker and Financial Adviser
Jennifer
Lee/Ivan Briechle
Tel: +44
(0) 20 3207 7800
Tamesis Partners LLP
Joint Broker
Charlie
Bendon/Richard Greenfield
Tel:
+44 (0) 20 3882 2868
Tavistock
Financial PR in the UK
Emily Moss/Eliza Logan
Tel:
+44 (0) 7920 3150 /
+44
(0) 7788 554035
guardianmetal@tavistock.co.uk
Edelman Smithfield
Financial PR in the US
guardianmetal@edelmansmithfield.com
About Guardian Metal Resources
Guardian Metal Resources PLC (NYSE.A: GMTL, LON:GMET, OTCQB:GMTLF)
is a strategic mineral exploration company driving the revival of
U.S. mined tungsten production and strengthening America's defense
metal independence. The Company is advancing two co-flagship
tungsten projects, Pilot Mountain, one of the largest undeveloped
tungsten deposits in the U.S. and Tempiute, formerly America's
largest producing tungsten operation, both located in
Nevada, one of the top-rated mining jurisdictions in the
United States.
In July 2025, the U.S. Department of War (DoW) under Title III of
the Defense Production Act of 1950, as amended, invested
US$6.2M in Golden Metal Resources (USA) LLC,
a wholly-owned subsidiary of Guardian Metal Resources
PLC, to support the Pilot Mountain PFS.
2
The
Company completed a U.S. listing on the NYSE American on March 20,
2026.
Tungsten is a strategic metal critical to the defense, energy
transition, technology and industrial sectors. In the context of
shifting geopolitical dynamics and tightening Chinese export
restrictions, Guardian Metal is well positioned to play a leading
role in re-establishing a secure, domestically mined U.S. supply
chain for this vital defense metal.