AbraSilver Extends Gold Zone at Diablillos Project with Additional Broad Intercepts at Oculto East Latest Results Include 60 m at 1.05 g/t Gold Including 17 m at 2.83 g/t Gold
AbraSilver Extends Gold Zone at Diablillos
Project with Additional Broad Intercepts at
Oculto East
Latest Results Include 60 m at 1.05 g/t Gold Including 17 m at
2.83 g/t Gold
Toronto, Ontario--(Newsfile Corp. - August 25, 2025) -
AbraSilver Resource Corp. (TSX: ABRA)
(OTCQX: ABBRF)
("AbraSilver" or the "Company") is pleased to announce assay results from three
new drill holes from the ongoing Phase V exploration program at its wholly-owned Diablillos project in
Argentina (the "Project").
The latest drill holes continue to expand the gold-bearing zone at Oculto East, intersecting consistent
mineralization well beyond the current Mineral Resource outline.
These results reinforce the potential for
continued growth and highlight Oculto East as a key focus area in the current exploration program.
Highlight Drill Results
DDH 25-060A:
60.0 metres ("m") grading 1.05 g/t gold
from 230 metres, including:
17.0 m at 2.83 g/t gold
4.0 m at 6.68 g/t gold
DDH 25-067:
16.0 m grading 1.74 g/t gold & 17.3 g/t silver
from 245 metres
DDH 25-068:
21.0 m grading 1.51 g/t gold & 49.5 g/t silver
from 188 metres, and
64.0 m grading 0.54 g/t gold & 19.8 g/t silver
from 314 metres,
Table 1 - Summary of Key Drill Intercepts:
Oculto East
Intercepts greater than 25 gram-metres Au shown in bold text
:
Drill Hole
Area
From
(m)
To
(m)
Type
Interval (m)
Ag
g/t
Au
g/t
DDH-25-060A
Oculto East
124.0
128.0
Oxides
4.0
58.5
-
134.0
136.0
Oxides
2.0
78.9
-
188.0
189.0
Oxides
1.0
-
0.76
209.0
214.0
Oxides
5.0
-
1.15
230.0
290.0
Oxides
60.0
-
1.05
Including
230.0
247.0
Oxides
17.0
-
2.83
Including
230.0
234.0
Oxides
4.0
-
6.68
DDH-25-067
Oculto East
124.0
125.0
Oxides
1.0
-
0.62
167.0
170.0
Oxides
3.0
8.0
0.84
177.0
178.0
Oxides
1.0
-
1.17
245.0
261.0
Oxides
16.0
17.3
1.74
276.0
277.0
Oxides
1.0
10.7
0.83
286.0
292.0
Oxides
6.0
5.9
0.65
DDH-25-068
Oculto East
188.0
209.0
Oxides
21.0
49.5
1.51
307.0
308.0
Oxides
1.0
17.7
1.37
314.0
378.0
Oxides
64.0
19.8
0.56
Including
342.0
346.0
Oxides
4.0
25.1
1.23
Including
354.0
378.0
Oxides
24.0
11.2
0.90
Note: All results in this news release are rounded. Assays are uncut and undiluted. Widths are drilled widths, not true widths.
True widths are
unknown.
John Miniotis, President and CEO, commented, "We are very encouraged that our drilling continues to
expand the footprint of the gold zone at Oculto East.
These latest results demonstrate the continuity of
mineralization well beyond the current open pit constrained Mineral Resource and further strengthens our
confidence in the growth potential at Diablillos.
With three rigs active, we remain focused on delivering
additional Mineral Resource growth while advancing the Definitive Feasibility Study in parallel."
Dave O'Connor, Chief Geologist, commented, "These latest intercepts clearly demonstrate that gold
mineralization extends further east than previously modeled.
Our drilling continues to concentrate in this
area to determine the full size and continuity of this expanding higher-grade gold zone."
Figure 1 -Plan View of Drill Results
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/11792/263657_489e76d844da088e_001full.jpg
Additional Details on Drill Results
Hole DDH 25-060A
was drilled more than 50 metres east of the current Mineral Resource boundary to
test the width of the high-grade gold zone intersected in hole DDH 25-024 (31m @ 10.0 g/t Au).
The hole
intersected a broad zone of continuous gold mineralization, highlighted by 60.0 m grading 1.05 g/t gold,
starting at 230 m down-hole.
These results confirm that the gold zone extending eastwards from the
Oculto deposit is very robust.
Hole DDH 25-067
located approximately 150 metres east of the current Mineral Resource boundary,
intersected 16.0 m grading 1.74 g/t gold with 17.3 g/t silver, from 245 m down-hole.
The intercept
demonstrates the continuity of the gold-bearing system in the Oculto East area and shows the potential
for a major eastwards extension of the Mineral Resource.
Hole DDH 25-068
located approximately 90 metres east of the current Mineral Resource open pit
boundary, intersected 21.0 m grading 1.51 g/t gold with 49.5 g/t silver, from 188 m down-hole. This was
followed by an additional 64.0 m grading 0.54 g/t gold with 19.8 g/t silver from 314 m down-hole.
These
results confirm the depth continuity of the mineralized system at Oculto East.
Figure 2 - Section Through Latest Drill Holes Looking Northwest
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/11792/263657_489e76d844da088e_002full.jpg
Note: Widths are drilled widths, not true widths.
True widths are unknown.
Phase V Exploration Update
The Company's ongoing 20,000-metre Phase V drill program is progressing well, with three active rigs.
Drilling at Oculto East remains the top priority, where multiple step-out holes are being completed to
further extend the gold zone beyond the existing Mineral Resource boundary.
Results received to date
confirm a broad zone of gold-dominant mineralization that extends at least 200 metres east of the current
open pit boundary, underscoring the strong potential for further Mineral Resource expansion.
In parallel, the Company will shortly commence drilling a minimum of two deep holes at the nearby Cerro
Blanco porphyry target, to test the promising copper-gold system.
Together, these initiatives are
designed to expand known mineralization at Oculto East while also testing new targets that could further
enhance the overall scale of the Diablillos project.
Collar Data
Hole Number
UTM Coordinates
Elevation
Azimuth
Dip
Depth (m)
Area
DDH 25-060A
720867
7199537
4,397
325
-70
305
Oculto East
DDH 25-067
720845
7199833
4,317
180
-60
308
Oculto East
DDH 25-068
720855
7199636
4,351
180
-60
400
Oculto East
About Diablillos
The Diablillos property is located within the Puna region of Argentina, in the southern part of Salta
Province along the border with Catamarca Province, approximately 160 km southwest of the city of Salta
and 375 km northwest of the city of Catamarca. The property comprises 15 contiguous and overlapping
mineral concessions acquired by AbraSilver in 2016.
The project site has good year-round accessibility
through a 150 km paved road, followed by a well-maintained gravel road, shared with other adjacent
projects.
There are several known mineral zones on the Diablillos property. Approximately 150,000 m have been
drilled to date, which has outlined multiple occurrences of epithermal silver-gold mineralization at Oculto,
JAC, Laderas and Fantasma. Several satellite zones of silver/gold-rich epithermal mineralization have
been located within a 500 m to 1.5 km distance surrounding the Oculto/JAC epicentre.
In addition, a
large porphyry complex is centered approximately 4 km northeast of Oculto which includes outcropping
porphyry intrusions within a major zone of alteration, and associated gold rich epithermal mineralization.
Comparatively nearby examples of high sulphidation epithermal deposits include: La Coipa (Chile);
Yanacocha (Peru); El Indio (Chile); Lagunas Nortes/Alto Chicama (Peru) Veladero (Argentina); and Filo
del Sol (Argentina). The most recent Mineral Resource estimate for Diablillos is shown in Table 3:
Table 3 - Diablillos Mineral Resource Estimate - As of July 21, 2025
Zone
Category
Tonnes
(000 t)
Ag
(g/t)
Au
(g/t)
AgEq
(g/t)
Contained Ag
(000 Oz Ag)
Contained Au
(000 Oz Ag)
Contained
AgEq
(000 Oz Ag)
Tank Leach
Oxides
Measured
26,545
119
0.71
183
101,564
604
156,487
Indicated
46,584
56
0.63
114
84,430
948
170,592
Measured &
73,129
79
0.66
139
185,994
1,553
327,078
Indicated
Inferred
9,693
34
0.57
86
10,616
176
26,647
Heap Leach
Oxides
Measured
6,673
16
0.14
25
3,486
30
5,342
Indicated
24,102
12
0.17
23
9,163
133
17,506
Measured &
30,774
13
0.16
23
12,649
162
22,848
Indicated
Inferred
10,024
9
0.20
21
2,811
64
6,850
Total
Oxides
Measured
33,218
98
0.59
152
105,050
634
161,829
Indicated
70,686
41
0.48
83
93,593
1,081
188,098
Measured &
103,904
59
0.51
105
198,643
1,715
349,927
Indicated
Inferred
19,628
21
0.38
53
13,427
241
33,496
Footnotes for Tank Leach Resource:
1
.
Mineral Resources are not Mineral Reserves and have not demonstrated economic viability.
2
.
The formula for calculating AgEq is as follows: Silver Eq Oz = Silver Oz + Gold Oz x (Gold Price/Silver Price) x (Gold Recovery/Silver
Recovery).
3
.
The Mineral Resource model was populated using Ordinary Kriging grade estimation within a three-dimensional block model and mineralized
zones defined by wireframed solids, which are a combination of lithology and alteration domains.
The 1m composite grades were capped
where appropriate.
4
.
The Mineral Resource is reported inside a conceptual Whittle open pit shell derived using US$ 27.50/oz Ag price, US $2,400/oz Au price,
83% process recovery for Ag, and 87% process recovery for Au.
5
.
The constraining open pit optimization parameters used were US $1.94/t mining cost, US $22.96/t processing cost, US $3.32/t G&A cost, and
average 51-degree open pit slopes.
6
.
The MRE has been categorized in accordance with the CIM Definition Standards (CIM, 2014).
7
.
A Net Value per block [NVB] calculation was used to constrain the Mineral Resource, determine the "Benefits = Income-Cost", where,
Income = [(Au Selling Price (US$/oz) - Au Selling Cost (USD/Oz)) x (Au grade (g/t)/31.1035)) x Au Recovery (%)] + [(Ag Selling Price
(US$/oz) - Ag Selling Cost (USD/Oz)) x (Ag grade (g/t)/31.1035)) x Ag Recovery (%)] and Cost = Mining Cost (US$/t) + Process Cost (US$/t)
+ Transport Cost (US$/t) + G&A Cost (US$/t) + [Royalty Cost (%) x Income]
8
.
The Mineral Resource is sub-horizontal with sub-vertical feeders and a reasonable prospect for eventual economic extraction by open pit
and tank leach processing methods.
9
.
In-situ bulk density were assigned to each model domain, according to samples averages for each lithology domain, separated by alteration
zones and subset by oxidation.
10
.
All tonnages reported are dry metric tonnes and ounces of contained gold are troy ounces.
11
.
Mining recovery and dilution factors have not been applied to the Mineral Resource estimates.
12
.
The Mineral Resource was estimated by Luis Rodrigo Peralta, B.Sc., FAusIMM CP (Geo), Independent Qualified Person under NI 43-101.
13
.
Mr. Peralta is not aware of any environmental, permitting, legal, title, taxation, socio-political, marketing, or other relevant issues that could
materially affect the potential development of the Mineral Resource.
14
.
All figures are rounded to reflect the relative accuracy of the estimates. Minor discrepancies may occur due to rounding to appropriate
significant figures.
Footnotes for Heap Leach Resource:
1
.
Mineral Resources are not Mineral Reserves and have not demonstrated economic viability.
2
.
The formula for calculating AgEq is as follows: Silver Eq Oz = Silver Oz + Gold Oz x (Gold Price/Silver Price) x (Gold Recovery/Silver
Recovery).
3
.
The Mineral Resource model was populated using Ordinary Kriging grade estimation within a three-dimensional block model and mineralized
zones defined by wireframed solids, which are a combination of lithology and alteration domains.
The 1m composite grades were capped
where appropriate.
4
.
The Mineral Resource is reported inside a conceptual Whittle open pit shell derived using US$ 27.50/oz Ag price, US $2,400/oz Au price,
80% process recovery for Ag, and 58% process recovery for Au.
5
.
The constraining open pit optimization parameters used and overall operational cost of US $11.31/t.
6
.
The MRE has been categorized in accordance with the CIM Definition Standards (CIM, 2014).
7
.
A Net Value per block [NVB] calculation was used to constrain the Mineral Resource, determine the "Benefits = Income-Cost", where,
Income = [(Au Selling Price (US$/oz) - Au Selling Cost (USD/Oz)) x (Au grade (g/t)/31.1035)) x Au Recovery (%)] + [(Ag Selling Price
(US$/oz) - Ag Selling Cost (USD/Oz)) x (Ag grade (g/t)/31.1035)) x Ag Recovery (%)] and Cost = Mining Cost (US$/t) + Process Cost (US$/t)
+ Transport Cost (US$/t) + G&A Cost (US$/t) + [Royalty Cost (%) x Income]
8
.
In-situ bulk density were assigned to each model domain, according to samples averages for each lithology domain, separated by alteration
zones and subset by oxidation.
9
.
All tonnages reported are dry metric tonnes and ounces of contained gold are troy ounces.
10
.
Mining recovery and dilution factors have not been applied to the Mineral Resource estimates.
11
.
The Mineral Resource was estimated by Mr. Peralta, B.Sc., FAusIMM CP (Geo), Independent Qualified Person under NI 43-101.
12
.
Mr. Peralta is not aware of any environmental, permitting, legal, title, taxation, socio-political, marketing, or other relevant issues that could
materially affect the potential development of the Mineral Resource.
13
.
All figures are rounded to reflect the relative accuracy of the estimates. Minor discrepancies may occur due to rounding to appropriate
significant figures.
QA/QC and Core Sampling Protocols
AbraSilver applies industry standard exploration methodologies and techniques, and all drill core
samples are collected under the supervision of the Company's geologists in accordance with industry
best practices. Drill core is transported from the drill platform to the logging facility where drill data is
compared and verified with the core in the trays. Thereafter, it is logged, photographed, and split by
diamond saw prior to being sampled. Samples are then bagged, and quality control materials are
inserted at regular intervals at site; these include blanks and certified reference materials as well as
duplicate core samples which are collected in order to assess sampling precision and reproducibility.
Groups of samples are then placed in large bags which are sealed with numbered tags in order to
maintain a chain-of-custody during the transport of the samples from the project site to the laboratory.
All samples are received by the ASA (Alex Stewart Argentina) preparation laboratory in Salta, where
they are prepared, then the pulp sachet is directly dispatched to its facility in Mendoza, Argentina, where
they are analyzed. All samples are analyzed using a multi-element technique consisting of a four-acid
digestion followed by ICP/AES detection, and gold is analyzed by 50g Fire Assay with an AAS finish.
Silver results greater than 100g/t are re-analyzed using four acid digestion with an ore grade AAS finish.
Qualified Persons
David O'Connor P.Geo., Chief Geologist for AbraSilver, is the Qualified Person as defined by National
Instrument 43-101 Standards of Disclosure for Mineral Projects, and he has reviewed and approved the
scientific and technical information in this news release.
About AbraSilver
AbraSilver is an advanced-stage exploration company focused on rapidly advancing its 100%-owned
Diablillos silver-gold project in the mining-friendly Salta province of Argentina.
The current Measured and
Indicated Mineral Resource estimate for Diablillos (tank leach-only) consists of 73.1 Mt grading 79 g/t Ag
and 0.66 g/t Au, containing approximately 186Moz silver and 1.6Moz gold, with significant further upside
potential based on recent exploration drilling. The Company is led by an experienced management team
and has long-term supportive shareholders. In addition, the Company has entered into an earn-in option
and joint venture agreement with Teck on the La Coipita project, located in the San Juan province of
Argentina.
AbraSilver is listed on the Toronto Stock Exchange under the symbol "ABRA" and in the U.S.
on the OTCQX under the symbol "ABBRF."
For further information please visit the AbraSilver Resource website at
www.abrasilver.com
, our LinkedIn
page at
AbraSilver Resource Corp.
, and follow us on X at
www.x.com/abrasilver
Alternatively, please contact:
John Miniotis, President and CEO
Tel: +1 416-306-8334
Cautionary Statements
This news release includes certain "forward-looking statements" under applicable Canadian securities
legislation. Forward-looking statements are necessarily based upon a number of estimates and
assumptions that, while considered reasonable, are subject to known and unknown risks, uncertainties,
and other factors which may cause the actual results and future events to differ materially from those
expressed or implied by such forward-looking statements. All statements that address future plans,
activities, events or developments that the Company believes, expects or anticipates will or may occur
are forward-looking information. There can be no assurance that such statements will prove to be
accurate, as actual results and future events could differ materially from those anticipated in such
statements. Accordingly, readers should not place undue reliance on forward-looking statements. When
considering this forward-looking information, readers should keep in mind the risk factors and other
cautionary statements in the Company's disclosure documents filed with the applicable Canadian
securities regulatory authorities on SEDAR+ at
www.sedarplus.ca
.
The risk factors and other factors
noted in the disclosure documents could cause actual events or results to differ materially from those
described in any forward-looking information. The Company disclaims any intention or obligation to
update or revise any forward-looking statements, whether as a result of new information, future events or
otherwise, except as required by law.
Neither the TSX nor its Regulation Services Provider (as that term is defined in the policies of the
TSX) accepts responsibility for the adequacy or accuracy of this news release
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