Silverco Mining Releases Remainder of 2025 Assays, Drilling 13.6m Grading 370 g/t AgEq, 12.0m Grading 236 g/t AgEq, 3.7m Grading 803 g/t AgEq, and 6.8m Grading 255 g/t AgEq San Miguel Drilling Highlights 370 g/t AgEq over
Silverco Mining Releases Remainder of 2025
Assays, Drilling 13.6m Grading 370 g/t AgEq,
12.0m Grading 236 g/t AgEq, 3.7m Grading 803
g/t AgEq, and 6.8m Grading 255 g/t AgEq
San Miguel Drilling Highlights
370 g/t AgEq
over
13.6 metres
236 g/t AgEq
over
12.0 metres
803 g/t AgEq over 3.7 meters
548 g/t AgEq
over
3.9 metres
San Juan Drilling Highlights
255 g/t AgEq
over
6.8 metres
Vancouver, British Columbia--(Newsfile Corp. - February 26, 2026) - Silverco Mining Ltd. (TSXV:
SICO) ("Silverco" or the "Company") is pleased to report the final batch of assay results from its 15,000
metre 2025 diamond drill program at the Company's 100%-owned Cusi Property ("Cusi"), located
approximately 90 kilometres northwest of First Majestic's Los Gatos Mine in Chihuahua, Mexico.
The final results from the 2025 program have continued to demonstrate the excellent continuity and
grade potential at San Miguel. Over the program, Silverco successfully defined the vein over a strike
length of 750 metres. Drilling on the west of San Miguel returned
13.6 metres grading 370 g/t AgEq
and
3.9 metres grading 548 g/t AgEq
in hole CU-25-45. Hole CU-25-43, which was drilled
approximately 50 metres below CU-25-45, returned
12.0 metres grading 236 g/t AgEq.
These
intercepts in combination with the results released on
November 26, 2025
, have outlined a zone of
significant vein widths within the San Miguel system.
Drilling to the east at San Miguel, at the intersection of the Cusi Fault, returned
3.7 metres grading 803
g/t AgEq
in CU-25-58. Additional results included
2.2 metres grading 321 g/t AgEq
in CU-25-55 and
3.5 metres grading 185 g/t AgEq in hole CU-25-56. Drilling on the eastern extent has only been
completed to a depth of approximately 200 metres, whereas the western portion has intercepted the vein
at depths exceeding 350 metres from surface and remains open.
At San Juan, the Company drilled two test holes to follow up on a 2021 drillhole which intersected 4.3
metres grading 472 g/t AgEq to the east of the Cusi Fault. Hole CU-25-59 intersected
6.8 metres
grading 255 g/t AgEq
80 metres away from the 2021 intercept. This hole reaffirms the continuation of
the vein to the east of the Cusi fault and represents a
585-metre step out
from the main mineral
resource area of San Juan.
The Company also tested the western extension of the Eduwiges veins, hitting
1.1 metres of 937 g/t
AgEq
and
1.1 metres of 437 g/t AgEq
in two separate veins in hole CU-25-50a. These intercepts are
approximately 300 meters from the existing underground drifts at Eduwiges. The western extents of the
Eduwiges, Promontorio, and San Juan vein systems have seen limited drilling. However, recently flown
LiDAR combined with field mapping has outlined old historical workings continue to the west for
upwards of 1,000 metres.
Mark Ayranto, CEO of Silverco, commented
:
"We are highly encouraged by the final results of our 2025 program, which continue to demonstrate
the scale and quality of the Cusi property. San Miguel is already a cornerstone of our resource, and
these results further expand its footprint. Having successfully drilled the vein over a 750-metre strike,
within a mapped 1,400-metre system, we see clear potential for continued lateral and vertical growth in
2026.
"Furthermore, drilling at San Juan continues to validate our geological model. Stepping out nearly
600 metres from the main resource and hitting 6.8 metres of 255 g/t AgEq confirms that the vein
systems extend well east of the Cusi Fault. The impressive widths and grades suggest San Juan
could evolve into a significant standalone mining zone.
"Beyond our established targets, the western drill results at Eduwiges highlight the broader district-
scale potential at Cusi. While previous exploration focused heavily around the Cusi Fault, historical
workings indicate these vein systems extend significantly to the west. Leveraging our recently flown
LiDAR, alongside detailed mapping and strategic drilling, will be a key focus for us in 2026 to unlock
this upside."
Details of the 2025 Drill Program
The 2025 program consisted of 15,000 metres of surface diamond drilling. The 2025 program was
primarily focused on following up on the San Miguel results from 2024, with the aim of extending vein
along strike and at depth. In addition, some minor exploratory and infill drilling of the other main veins
was completed. Drilling was performed from surface by a local contractor, utilizing portable drill rigs. All
core was HQ in size for holes up to 400 metres in depth. Any holes beyond this depth were switched to
NQ upon reaching 400 metres.
Figure 1: 2025 Drill Program Collar Locations
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/10393/285430_eef8b45bb4c96b97_002full.jpg
Figure 2: 2025 San Miguel Drill Program Collar Locations
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/10393/285430_eef8b45bb4c96b97_003full.jpg
Figure 3: San Miguel Long Section +/- 50m, Looking WNW
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/10393/285430_eef8b45bb4c96b97_004full.jpg
Figure 4: 2025 San Juan Drill Program Collar Locations
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/10393/285430_eef8b45bb4c96b97_005full.jpg
Figure 5: San Juan Long Section +/- 50m, Looking NNW
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/10393/285430_eef8b45bb4c96b97_006full.jpg
Figure 6: Eduwiges Drill Program Collar Locations
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/10393/285430_eef8b45bb4c96b97_007full.jpg
Figure 7: Eduwiges Long Section +/- 75m, Looking NW
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/10393/285430_eef8b45bb4c96b97_008full.jpg
Detailed drill results, along with notable assays results are provided in Tables 1 and 2.
Table 1: Significant Assay Results from the 2025 Drill Program
Hole ID
Zone
From (m)
To (m)
Length (m)
Au g/t
Ag g/t
Pb %
Zn %
AgEq g/t
CU-25-42
San Miguel
Hole terminated
CU-25-42a
San Miguel
293.5
296.5
3.0
0.16
64
1.46
2.75
145
CU-25-43
San Miguel
258.0
270.0
12.0
0.27
137
2.06
3.21
236
incl.
266.9
270.0
3.1
0.58
198
4.49
6.68
417
CU-25-43
San Miguel
277.8
280.9
3.1
0.08
54
2.59
4.06
181
CU-25-44
San Miguel
No Significant Interval
CU-25-45
San Miguel
238.9
242.8
3.9
0.22
500
1.62
3.04
548
incl.
238.9
239.4
0.5
0.63
1,265
3.59
5.97
1,348
CU-25-45
San Miguel
257.0
270.6
13.6
0.34
293
1.72
3.12
370
incl.
269.3
270.6
1.3
1.18
1,015
0.30
0.71
980
CU-25-45
San Miguel
274.0
281.1
7.1
0.06
95
0.31
0.63
105
CU-25-46
Eduwiges
189.6
190.9
1.3
0.17
235
0.07
0.32
226
CU-25-47
San Miguel
210.0
213.3
3.3
0.17
198
0.22
0.21
194
CU-25-47
San Miguel
246.0
248.4
2.4
0.11
186
0.30
0.58
189
CU-25-48
San Miguel
No Significant Interval
CU-25-49
San Miguel
301.2
305.3
4.1
0.07
104
0.72
1.54
140
CU-25-50a
Eduwiges
256.9
258.0
1.1
0.26
457
0.04
0.79
437
CU-25-50a
Eduwiges
340.5
341.6
1.1
0.62
1,005
0.11
0.30
937
CU-25-51
San Miguel
151.1
153.6
2.5
0.11
259
0.71
1.73
284
CU-25-51
San Miguel
156.7
160.6
3.9
0.19
82
1.95
2.23
163
incl.
156.7
157.1
0.4
0.40
503
10.25
13.85
936
CU-25-52
Eduwiges
No Significant Interval
CU-25-53
San Miguel
151.5
155.8
4.3
0.14
116
1.61
0.75
157
CU-25-53
San Miguel
160.0
162.8
2.8
0.16
101
0.93
1.49
144
CU-25-54
San Juan
No Significant Interval
CU-25-55
San Miguel
227.5
229.7
2.2
0.78
189
3.81
2.23
321
CU-25-56
San Miguel
285.9
289.4
3.5
0.07
67
3.21
3.03
185
CU-25-57
San Miguel
No Significant Interval
CU-25-58
San Miguel
236.8
240.5
3.7
0.70
239
13.07
15.70
803
CU-25-59
San Juan
681.6
688.3
6.8
0.38
257
0.14
0.30
255
CU-25-60
San Miguel
No Significant Interval
CU-25-61
San Miguel
No Significant Interval
Notes
(1)
AgEq = Ag g/t x Ag Recovery + [(Au g/t x Au Rec x Au price/gram)+(Pb% x Pb rec. X Pb price/t) + (Zn% x Zn rec. X Zn price/t)]/Ag
price/gram. Metal price assumptions are: $30.00/oz silver, $2,400/oz gold, $1.00/lb lead, $1.35/lb zinc. Metallurgical recovery assumptions are
90% for silver, 50% for gold, 90% for lead, and 60% for zinc. Metallurgical recoveries used in this release are based on historical operational
results on the Cusi project.
(2)
Reported intervals are downhole core lengths. True widths are estimated at ~65-95% based on vein orientation observed in drill core;
however, actual true widths may vary with additional drilling.
Table 2: Drill Collar Location
Hole ID
Easting
Northing
Elevation
Azimuth
Dip
Length
CU-25-42
320,399
3,123,197
2,088
323
-56
43.5
CU-25-42a
320,398
3,123,198
2,089
321
-56
390.0
CU-25-43
320,398
3,123,198
2,089
320
-49
339.0
CU-25-44
318,872
3,124,509
2,326
335
-36
201.0
CU-25-45
320,398
3,123,197
2,089
319
-40
321.0
CU-25-46
318,783
3,124,453
2,314
344
-43
240.0
CU-25-47
320,398
3,123,198
2,089
320
-29
294.0
CU-25-48
318,985
3,124,514
2,290
326
-38
266.5
CU-25-49
320,398
3,123,197
2,089
288
-47
330.0
CU-25-50a
318,933
3,124,413
2,267
332
-53
420.0
CU-25-51
320,616
3,123,905
1,974
296
-21
172.5
CU-25-52
318,932
3,124,413
2,267
326
-32
295.5
CU-25-53
320,616
3,123,905
1,974
276
-33
177.0
CU-25-54
318,697
3,126,801
2,079
194
-53
850.0
CU-25-55
320,639
3,123,793
1,970
311
-36
276.0
CU-25-56
320,741
3,123,842
1,987
298
-35
325.5
CU-25-57
320,639
3,123,793
1,970
293
-44
237.0
CU-25-58
320,639
3,123,793
1,970
291
-56
276.0
CU-25-59
318,697
3,126,801
2,079
179
-51
723.0
CU-25-60
320,632
3,123,745
1,970
291
-41
258.0
CU-25-61
320,639
3,123,793
1,970
312
-50
280.5
Notes
(1)
Hole azimuths and dips are based on average of surveyed intervals
Quality Assurance/Quality Control and Sampling Procedures
All diamond drill core from the 2025 program at the Cusi Project was logged, photographed, and sawn
in half using a diamond blade core saw. One half of the core was submitted for geochemical analysis,
while the other half was retained in secure storage for reference. Sampling intervals were determined
based on geological boundaries and typically ranged from 0.3- 1.5 metres. Control samples comprised
approximately 18% of all samples submitted, including certified reference standards, analytical blanks,
field duplicates, preparation duplicates and analytical duplicates. QA/QC results were reviewed in real
time, and all data have been verified as meeting acceptable thresholds for accuracy, precision, and
contamination before inclusion in this release.
Drill core and rock samples were sent to ALS Minerals for analysis with sample preparation in
Chihuahua, Mexico and analysis in North Vancouver, British Columbia. Samples remained under
Company custody until delivery to ALS; sealed bags were transported by Company personnel to ALS
Chihuahua. The ALS Chihuahua and North Vancouver facilities are ISO/IEC 17025 certified. Samples
are dried, weighed, and crushed to at least 70% passing 2mm, and a 250 g split is pulverized to at least
85% passing 75 μm (PREP-31). Silver and base metals are analyzed using a four-acid digestion and
ICP-AES. Over-limit analyses for silver (>100 ppm), lead (>10,000 ppm), and zinc (>10,000 ppm) are re-
assayed using an ore-grade four-acid digestion and ICP-AES (ME-OG62). Samples with over-limit
silver assays > 1500 ppm are analyzed by 30-gram fire assay with a gravimetric finish (Ag-GRA21).
Gold is assayed by 30-gram fire assay and AAS (Au-AA23)
Technical Disclosure
The scientific and technical information contained in this news release has been reviewed and approved
by Nico Harvey, P.Eng., Vice President Project Development of Silverco, a Qualified Person as defined
in National Instrument 43-101. Mr. Harvey is not independent of the Company. Mr. Harvey has reviewed
the sampling, analytical and QA/QC data underlying the technical information disclosed herein.
No production decision has been made at Cusi. Any decision to restart operations will follow completion
of the requisite technical, financial and permitting milestones.
About Silverco Mining Ltd.
The Company owns a 100% interest in the 11,665-hectare Cusi Project located in Chihuahua State,
Mexico (the "Cusi Property"). It lies within the prolific Sierra Madre Occidental gold-silver belt. There is
an existing 1,200 ton per day mill with tailings capacity at the Cusi Property.
The Cusi Property is a past-producing underground silver-lead-zinc-gold project approximately 135
kilometres west of Chihuahua City. The Cusi Property boasts excellent infrastructure, including paved
highway access and connection to the national power grid.
The Cusi Property hosts multiple historical Ag-Au-Pb-Zn producing mines each developed along multiple
vein structures. The Cusi Property hosts several significant exploration targets, including the extension of
a newly identified downthrown mineralized geological block and additional potential through claim
consolidation.
On Behalf of the Board of Directors
"Mark Ayranto"
Mark Ayranto, President & CEO
Email:
For further information, please contact:
Investor relations & Communications
Email:
www.silvercomining.com
Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the
policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this
release.
Cautionary Statement and Forward-Looking Information
This news release contains "forward-looking statements" and "forward-looking information" (together,
"forward-looking statements") within the meaning of applicable Canadian securities laws. Forward-
looking statements relate to future events or the Company's future performance and are generally
identified by words such as "anticipate", "believe", "continue", "could", "estimate", "expect", "forecast",
"goal", "intend", "may", "objective", "outlook", "plan", "potential", "priority", "schedule", "seek",
"should", "target", "will", and similar expressions (including negative and grammatical variations).
Forward-looking statements in this release include, but are not limited to: the Company's
interpretation of geological results at the Cusi Property; the significance of the intercepts; program,
estimates or expectations regarding true widths, AgEq calculations, metallurgical recoveries and
comparability; the possible expansion and/or upgrading of mineral resources; availability and terms
of financing; the filing or availability of figures and additional technical information; and any other
statements that express management's expectations or beliefs of future events or results.
These forward-looking statements are based on a number of assumptions that, while considered
reasonable by the Company as of the date of this release, are inherently subject to significant
business, technical, economic and competitive uncertainties and contingencies. Key assumptions
include: the accuracy, representativeness and continuity of sampling and assay results; that drill hole
orientation and modeling reasonably estimate true widths; that metallurgical recoveries used to
calculate AgEq (90% Ag, 50% Au, 90% Pb, 60% Zn) are reasonable proxies based on historical
operational data at Cusi; the availability of drill rigs, personnel and analytical laboratory capacity on
expected timelines; timely receipt of permits and approvals necessary for planned work; access to
surface rights and community support; no material adverse changes to general business, economic,
market and political conditions; commodity price and foreign exchange assumptions; inflation and
input costs remaining within expectations; and the Company's ability to secure additional financing on
acceptable terms when required.
Forward-looking statements are subject to known and unknown risks, uncertainties and other factors
that may cause actual results, performance or achievements to differ materially from those expressed
or implied. Such factors include, without limitation: exploration, development and operating risks
(including drilling, sampling, assaying, interpretation and modeling uncertainties; variability of
mineralization; representativity of samples; true-width estimation; metallurgical variability; water
management; geotechnical and ground conditions); risks inherent in estimating or converting mineral
resources; the absence of current mineral reserves at the Cusi Property; that AgEq is a reporting
metric only and does not imply economic recoverability; permitting, licensing and regulatory risks in
Mexico (including changes in mining, environmental, labour, water, land access and related regimes);
community relations, social licence and stakeholder engagement risks; title, surface rights, access
and environmental liability risks; health, safety and security risks; commodity price and FX volatility
(silver, gold, lead, zinc; MXN/CAD/USD); cost inflation, supply-chain disruptions and contractor
availability; political and macroeconomic instability; financing and liquidity risks (including the
availability and terms of debt and/or equity); TSX Venture Exchange and other regulatory approvals;
counterparty risks; limitations and uncertainties relating to historical data and third-party reports; force
majeure events; litigation and enforcement risks; and those additional risks set out in the Company's
public disclosure filings available on SEDAR+ at
www.sedarplus.ca
.