ABRA.TO · 2025-11-19 12:00:00

AbraSilver Continues to Drill High-Grade Gold at Diablillos, with 36 Metres of 2.32 g/t Gold Intersected at Oculto East Cerro Viejo Drilling Confirms Broad Gold-Copper Mineralization in Upper Porphyry System

Drill Results

AbraSilver Continues to Drill High-Grade Gold

at Diablillos, with 36 Metres of 2.32 g/t Gold

Intersected at Oculto East

Cerro Viejo Drilling Confirms Broad Gold-Copper

Mineralization in Upper Porphyry System

Toronto, Ontario--(Newsfile Corp. - November 19, 2025) -

AbraSilver Resource Corp. (TSX: ABRA)

(OTCQX: ABBRF)

("AbraSilver" or the "Company") is pleased to announce new assay results from four

drill holes from the ongoing Phase V exploration program at its wholly-owned Diablillos project in

Argentina (the "Project").

These latest results continue to expand oxide-hosted high-grade gold

mineralization at Oculto East while also confirming the presence of near-surface broad gold and copper

mineralization in the upper portions of a porphyry system at Cerro Viejo.

Highlight Drill Results -

Widths are reported as drilled; true widths are not yet known.

Cerro Viejo

: Both holes drilled at Cerro Viejo intersected continuous gold mineralization from

surface, interpreted to represent the upper levels of a mineralized porphyry system:

DDH 25-050:

128.0 metres ("m") at 0.24 g/t gold from surface

DDH 25-056:

200.0 m grading 0.32 g/t gold from surface,

including:

10.0 m at 1.10 g/t

(oxides, from 21 m downhole)

11.0 m at 0.33 g/t gold and 0.46% copper

(sulphides, from 49 m)

Oculto East:

Both holes intersected broad zones of oxide gold mineralization, with DDH 25-078

returning multiple high-grade intervals and DDH 25-081 confirming additional consistent gold

zones within the broader mineralized corridor, which drilling continues to expand. Importantly, holes

78 and 81 represent two distinct sub-parallel zones of mineralization at Oculto East, located

approximately 500 metres apart, further demonstrating the scale and continuity of this system.

DDH 25-078

returned several high-grade gold intercepts within a ~100-metre-thick

mineralized package, including:

25.0 m grading 1.67 g/t gold

(from 178 m) including

2.0 m at 11.14 g/t gold;

6.0 m grading 4.64 g/t gold

(211 m);

36.0 m grading 2.32 g/t gold

(240 m) including

11.0 m grading 3.76 g/t gold

DDH 25-081

also encountered several oxide gold zones, including:

8.0 m grading 0.76 g/t gold

(267 m);

10.0 m grading 0.72 g/t gold

(341 m);

John Miniotis, President and CEO, commented, "Our drilling continues to deliver excellent results across

multiple high-priority targets at Diablillos.

At Oculto East, we are consistently intersecting thick zones of

high-grade oxide gold mineralization that continue to expand the known mineralized footprint. In parallel,

the initial results from Cerro Viejo highlight the potential for a robust gold-copper porphyry system.

Together, these results underscore the strong growth potential across the broader Diablillos project."

Dave O'Connor, Chief Geologist, commented, "Oculto East continues to deliver strong, consistent oxide

gold intercepts, pointing to a large, continuous extension of the mineralized system. At the same time,

drilling at Cerro Viejo confirms we are in the upper levels of a significant gold-copper porphyry, and we

are currently drilling a deeper hole targeting the potential porphyry source."

Table 1 - Summary of Key Drill Intercepts:

Cerro Viejo & Oculto East

Intercepts greater than 25 gram-metres gold shown in bolded text

Drill Hole

Area

From

(m)

Type

Interval

(m)

g/t

DDH-25-050

Cerro Viejo

1.0

129.0

Mixed

128.0

0.24

DDH-25-056

Cerro Viejo

0.0

200.0

Mixed

200.0

0.32

0.04

Including

21.0

31.0

Oxides

10.0

1.10

Including

49.0

60.0

Sulphides

11.0

5.3

0.33

0.46

DDH-25-078

Oculto East

178.0

203.0

Oxides

25.0

10.1

1.67

Including

190.0

192.0

Oxides

2.0

29.8

11.14

211.0

217.0

Oxides

6.0

16.0

4.64

221.0

222.0

Oxides

1.0

3.9

1.32

240.0

276.0

Oxides

36.0

12.1

2.32

Including

265.0

276.0

Oxides

11.0

13.7

3.76

304.0

306.0

Oxides

2.0

31.5

0.62

DDH-25-081

Oculto East

210.0

220.0

Oxides

10.0

2.0

0.35

246.0

249.0

Oxides

3.0

4.8

0.74

261.0

262.0

Oxides

1.0

3.4

1.51

267.0

275.0

Oxides

8.0

2.6

0.76

325.0

329.0

Oxides

4.0

0.85

341.0

351.0

Oxides

10.0

4.6

0.72

363.0

364.0

Oxides

1.0

8.7

1.09

Note: All results in this news release are rounded. Assays are uncut & undiluted. Widths are drilled widths, not true widths.

True widths are

unknown.

Figure 1 -Plan View of Drill Results

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/11792/275010_4c1e4e3214b949c7_001full.jpg

Additional Details on Drill Results - Cerro Viejo

The two holes drilled at Cerro Viejo both encountered broad zones of gold mineralization, with

associated copper within dacitic porphyry units. The gold mineralisation is hosted in d-type quartz-pyrite

veins in sericite-pyrite alteration of the host rock, indicative of porphyry style alteration. These results

confirm that the current drilling is testing the upper portions of a large porphyry system. Deeper drilling is

underway to evaluate the underlying porphyry source responsible for the mineralization.

Figure 2 - Section Through Latest Drill Holes at Cerro Viejo

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/11792/275010_4c1e4e3214b949c7_002full.jpg

Note: Widths are drilled widths, not true widths.

True widths are unknown.

Drill hole DDH 24-056 has been previously announced by the Company and are shown here for illustrative purposes.

Additional Details on Drill Results - Oculto East

Drilling at Oculto East continues to demonstrate broad, continuous intervals of oxide-hosted gold

mineralization extending beyond the eastern margin of the current conceptual open pit. The standout

intercepts in DDH 25-078 reflect strong grade continuity across multiple stacked zones within a large,

coherent mineralized envelope. Importantly, holes 78 and 81 outline two separate mineralized zones

located approximately 500 metres apart, underscoring both the scale of the system and the potential for

multiple parallel high-grade structures. This spatial separation further highlights the robustness and

continuity of mineralization across Oculto East.

Additional assay results from nearby holes are pending,

and drilling is ongoing to further delineate the extent of this expanding zone.

A deep hole (completed to a downhole depth of 1,025m) has been drilled at Oculto East to test porphyry

style mineralisation beneath the high sulphide epithermal zone. It was targeted to intercept elevated

molybdenum mineralisation associated with gold intersected in shallower drilling. Elevated molybdenum

grades are an important vector and strong geological marker when targeting potential porphyry centers,

and the molybdenum is interpreted as representing the cap above a porphyry system. Assay results are

pending and will be released once received.

Figure 3 - Section Through Latest Drill Holes at Oculto East

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/11792/275010_4c1e4e3214b949c7_003full.jpg

Note: Widths are drilled widths, not true widths.

True widths are unknown.

Drill holes: DDH 25-024, 25-077 and 24-064 have been previously announced by the Company and are shown here for illustrative purposes.

RIGI Application and Definitive Feasibility Study ("DFS")

The Company has now completed all required work for the application under Argentina's Large

Investment Incentive Regime ("RIGI"), which is expected to be formally submitted in the near-term.

RIGI is

a new federal investment framework designed to attract and accelerate major development projects by

providing long-term fiscal stability and a competitive suite of tax, customs, and foreign-exchange

benefits.

The design and engineering work for the DFS is nearing completion and planning for early works

activities is advancing on schedule. Metallurgical test work and all site investigation activities are

completed, with final optimization parameters established for the updated open pit mine plan. The

technical team is preparing for third party reviews at the 80% completion milestone over the coming

weeks. The DFS remains on track for completion in H1 2026, at which time the project will be ready to

advance with early works activities and a final investment decision.

Collar Data

Hole Number

UTM Coordinates

Elevation

Azimuth

Dip

Depth (m)

Area

DDH 25-050

723697

7202736

4,059

-75

190

Cerro Viejo

DDH 25-056

723608

7202742

4,068

-80

200

Cerro Viejo

DDH 25-078

720763

7199638

4,335

180

-65

326

Oculto East

DDH 25-081

721343

7199382

4,591

110

-60

365

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. AbraSilver acquired the property in 2016, which

comprises 15 contiguous and overlapping mineral concessions with excellent year-round road access.

Exploration to date has outlined multiple occurrences of silver-gold oxide mineralization at Oculto, JAC,

Laderas, and Fantasma, located within a 500 m to 1.5 km distance surrounding the Oculto/JAC

epicentre. To date, over 150,000 metres have been drilled on the property, which continues to

demonstrate the strong growth potential of shallow, oxide-hosted silver and gold resources.

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 2:

Table 2 - Diablillos Mineral Resource Estimate - As of July 21, 2025

Zone

Category

Tonnes

(000 t)

(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

0.63

114

84,430

948

170,592

Measured &

73,129

0.66

139

185,994

1,553

327,078

Indicated

Inferred

9,693

0.57

10,616

176

26,647

Heap Leach

Oxides

Measured

6,673

0.14

3,486

5,342

Indicated

24,102

0.17

9,163

133

17,506

Measured &

30,774

0.16

12,649

162

22,848

Indicated

Inferred

10,024

0.20

2,811

6,850

Total

Oxides

Measured

33,218

0.59

152

105,050

634

161,829

Indicated

70,686

0.48

93,593

1,081

188,098

Measured &

103,904

0.51

105

198,643

1,715

349,927

Indicated

Inferred

19,628

0.38

13,427

241

33,496

Footnotes for Tank Leach Resource:

Mineral Resources are not Mineral Reserves and have not demonstrated economic viability.

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).

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.

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.

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.

The MRE has been categorized in accordance with the CIM Definition Standards (CIM, 2014).

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]

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.

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.

All tonnages reported are dry metric tonnes and ounces of contained gold are troy ounces.

Mining recovery and dilution factors have not been applied to the Mineral Resource estimates.

The Mineral Resource was estimated by Luis Rodrigo Peralta, B.Sc., FAusIMM CP (Geo), Independent Qualified Person under NI 43-101.

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.

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:

Mineral Resources are not Mineral Reserves and have not demonstrated economic viability.

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).

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.

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.

The constraining open pit optimization parameters used and overall operational cost of US $11.31/t.

The MRE has been categorized in accordance with the CIM Definition Standards (CIM, 2014).

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]

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.

All tonnages reported are dry metric tonnes and ounces of contained gold are troy ounces.

Mining recovery and dilution factors have not been applied to the Mineral Resource estimates.

The Mineral Resource was estimated by Mr. Peralta, B.Sc., FAusIMM CP (Geo), Independent Qualified Person under NI 43-101.

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.

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 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

[email protected]

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

To view the source version of this press release, please visit

https://www.newsfilecorp.com/release/275010

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