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DEF.V ·

Defiance Reports High Grade Drill Results at San Acacio

Drill Results

Defiance Reports High Grade Drill Results at

San Acacio

Vancouver, British Columbia--(Newsfile Corp. - February 20, 2026) - Defiance Silver Corp. (TSXV:

DEF) (FSE: D4E) (WKN: A1JQW5) ("

Defiance

" or the "

Company

") is pleased to provide an update on

the current drilling campaign at the Zacatecas Project. The campaign was designed to confirm the

extension of the known mineralized structures both laterally and vertically as well as to validate the current

geological model that will be used for the upcoming mineral resource estimate. The company continues

to consistently encounter high grade silver mineralization in multiple mineralized zones with lateral and

vertical continuity in the Veta Grande system. This release contains results from five holes: DDSA-25-73

through DDSA-25-77, representing 2,553m of the 10,000m diamond drill program that began

Sept 12,

2025

. The company has completed 12 drill holes to date and additional drill holes will be reported as the

company receives the analytical results.

Highlights of Results

DDSA-25-76 - returned

3.55m

of

355.32 g/t Ag

(from 176.38m to 179.93m) within a

22.57m

interval grading

102.91

Ag/t from (179.93m to 198.95m). This hole also returned

3.07m

of

579.27

g/t Ag

(from 209.15m to 212.22m) including

0.55m

of

2120 g/t Ag

(from 209.15m) within a wider

interval returning

10.65m

grading

210.70 g/t Ag

from (209.15m to 219.80m).

DDSA-25-77 - returned

3.01m of 262.88

g/t Ag

(from 286.18m to 289.19m) including

1.75m

of

431.58 g/t Ag

(from 286.18 to 287.93m) with 0.37m of

1965 g/t Ag

(from 286.18m to 286.55m) all

hosted within a larger interval of

6.77m

(from 286.18m to 292.95m) grading

128.69 g/t Ag

.

DDSA-25-75 - returned

2.35m

of

298.58 g/t Ag

(from 255.17m to 257.52m) including 0.36m of

1595 g/t Ag

(from 255.17m to 255.53m) within a

5.20m

interval grading

149.25 g/t Ag

(from

252.32m to 257.52m).

Overview Map of Drill Locations

Figure 1

. Plan map of San Acacio project area. Drill holes reported in this release are shown with

yellow collars and traces, with selected highlights in boxes. Coordinates are in UTM WGS84 Zone

13N.

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

https://images.newsfilecorp.com/files/2950/284655_e4a5b3d7a4beba69_001full.jpg

Figure 2

. Simplified Cross Section, looking NW with results from Hole DDSA-25-76

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

https://images.newsfilecorp.com/files/2950/284655_defiance2en.jpg

Table of Results

Table 1.

Table of Results. True thickness is assumed to be 50% — 80% of downhole width.

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

https://images.newsfilecorp.com/files/2950/284655_defiancetable1en.jpg

Discussion of Results

Defiance announced the start of the drill program on

September 12, 2025 NR

. The information

presented in this release includes approximate 2,553 metres of drilling of a minimum 10,000m drill

program designed to collect additional data in the San Acacio proposed mineral resource area. These

holes were designed to improve the main Veta Grande structural model and to infill poorly drilled zones,

as well as to test both mineralized hanging wall and footwall splays to the Veta Grande system.

High

grade results over wide widths were encountered in Holes DDSA-25-75, 25-76 and 25-77.

Through surface mapping and drilling, the company has been able to identify at least three blocks on the

main Veta Grande structure, these blocks are delineated by major N-NW striking faults, where

displacement of the veins, mineralization styles and vein splays occur. The displacement of the vein in

the area of the upcoming mineral resource estimate, can be approximately 15m to 30m.

The current blocks are being delineated by the San José and San Genaro Fault systems and are named

as follows: NW block, Central block and SE block. NW block includes significant past producing

Carolina and Almaden Pits. The Central block includes the past producing Esperanza pit and part of

Guadalupe Pits, one of the largest past producing open pits at San Acacio. The SE block is part of

Guadalupe to Refugio-Tiro Intermedio area.

DDSA-25-73: Re-entered historical drill hole SAD-17-29, an older drill hole that ended before reaching

the Veta Grande structure; by re-entering, the company was able to prove the continuity of the Veta

Grande structure on the SE block. Although the Veta Grande structure was intercepted and some silver

values were detected, the hole returned no results >100ppm Ag.

DDSA-25-74: Re-entered DDSA-21-48 The Veta Grande structure was intercepted and some silver

values were detected; the hole returned no results >100ppm Ag.

DDSA-25-75: The first objective was to better define the width of Veta Navidad and further down hole,

drill through high grade veinlets arrangements and then intersect the Veta Grande. The intercept of Veta

Navidad in this drill hole, which was designed to cut through the vein perpendicularly, is only 0.8m, which

confirms that it is indeed a narrow subvertical structure. The hole was successful in identifying high grade

veinlet arrays between the Veta Navidad and the Veta Grande.

DDSA-25-76: Infill drill hole that 76 targeted the intersection of Veta Grande with hanging wall splays that

create a mineralized shoot below the past-producing Esperanza Pit area that is coherent with a wide

mineralized vein at surface. The highest values correspond to one of the modelled mineralized splays in

Veta Grande vein system.

DDSA-25-77: Re-entered historical drill hole SAD-17-30A which previously encountered drilling

problems and did not intercept Veta Grande when it was drilled in 2017. This drill hole targeted SE block

hanging wall splays and the Veta Grande. Hole 77 was successful in intercepting the Veta Grande but

with low grades. The wide intercepts with high grades correspond to widely mineralized veinlet zones

both in both the hanging wall and footwall of the Veta Grande. The company believe that these wide,

mineralized, array zones have the potential to add ounces to the upcoming resource estimate.

Table 2.

Drill collar details. All coordinates in WGS84 UTM Zone 13N

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

https://images.newsfilecorp.com/files/2950/284655_defiancetable2en.jpg

Discussion of QA/QC and Analytical Procedure

Samples were selected based on the lithology, alteration, and mineralization characteristics; sample

size ranges from 0.25 - 2m in width.

All altered and mineralized intervals were sent for assay. One blank,

one standard, and one duplicate were included within every 20 samples. Standard materials are

certified reference materials [CRMs] from OREAS and CDN that contain a range of Ag, Au, Cu, Pb, and

Zn values. Blanks, standards, and duplicates did not detect any issues with the analytical results.

Samples were analyzed by ALS Chemex Laboratories, an independent analytical facility. Sample

preparation was performed at the Zacatecas, Mexico, prep facility, and analyses were performed at the

Vancouver, Canada, analytical facility. All elements except Au and Hg were analyzed by a multi-element

geochemistry method utilizing a four-acid digestion followed by ICP-MS detection [ME-MS61m]; mercury

was analyzed after a separate aqua regia digest by ICP-MS. Overlimit assays for Ag, Pb, and Zn were

conducted using the OG62 method (multi-acid digest with ICP-AES/AAS finish). Gold was measured by

fire-assay with an ICP-AES finish [50g sample, Au-ICP22].

About Defiance Silver Corp.

Defiance Silver Corp. (TSXV: DEF) (OTCQX: DNCVF) (FSE: D4E) is an exploration company

advancing the district-scale Zacatecas project, located in the historic Zacatecas Silver District, the 100%

owned Tepal Gold/Copper Project in Michoacán state, Mexico and the newly acquired Green Earth

Metals property portfolio in Sonora State. Defiance is managed by a team of proven mine developers

with a track record of exploring, advancing, and developing several operating mines and advanced

resource projects. Defiance Silver's corporate mandate is to advance its projects through capital-

efficient exploration focused on resource growth and new mineral discoveries.

On behalf of Defiance Silver Corp.

"Chris Wright"

Chairman of the Board

For more information, please contact:

Investor Relations at +1 (604) 343-4677 or email at

[email protected]

www.defiancesilver.com

Suite 2900-550 Burrard Street

Vancouver, BC V6C 0A3, Canada

Tel: +1 (604) 343-4677

Email:

[email protected]

Qualified Person Statement

Mr. George Cavey, P. Geo, is a Qualified Person within the meaning of National Instrument 43-101

and has approved the technical information concerning the Company's material mineral properties

contained in this press release.

Disclaimer

Neither 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.

Caution Regarding Forward-Looking Information

Information contained in this news release which are not statements of historical facts may be

"forward-looking information" for the purposes of Canadian securities laws. Such forward-looking

information involves risks, uncertainties and other factors that could cause actual results,

performance, prospects, and opportunities to differ materially from those expressed or implied by

such forward looking information. The words "believe", "expect", "anticipate", "contemplate", "plan",

"intends", "continue", "budget", "estimate", "may", "will", "schedule", "understand" and similar

expressions identify forward-looking information. These forward-looking statements relate to, among

other things: the Company's expectations regarding the ability of the Mining Bureau of Mexico City to

reinstate ownership of the concessions to the Company, cooperation with the Mining Bureau relating

to such reinstatement and the potential for any successful solution resulting therefrom.

Forward-looking information is necessarily based upon a number of estimates and assumptions that,

while considered reasonable by Defiance, are inherently subject to significant technical, political,

business, economic and competitive uncertainties, and contingencies. Known and unknown factors

could cause actual results to differ materially from those projected in the forward-looking information.

Factors and assumptions that could cause actual results or events to differ materially from current

expectations include, among other things: the inability of the Company to regain possession of its

concessions; political risks associated with the Company's operations in Mexico; the failure of the

Mining Bureau in Mexico City to take any coercive action to reinstate ownership of the concessions to

the Company; and the inability of the Company and its subsidiaries to enforce their legal rights in

certain circumstances. For additional risk factors, please see the Company's most recently filed

Management Discussions & Analysis for its quarter ended February 29, 2024, available on SEDAR

at

www.sedarplus.ca

.

There can be no assurances that forward-looking information and statements will prove to be accurate,

as many factors and future events, both known and unknown could cause actual results, performance,

or achievements to vary or differ materially from the results, performance or achievements that are or

may be expressed or implied by such forward-looking statements contained herein or incorporated by

reference. Accordingly, all such factors should be considered carefully when making decisions with

respect to Defiance, and prospective investors should not place undue reliance on forward looking

information. Forward-looking information in this news release is made as at the date hereof. The

Company assumes no obligation to update or revise forward-looking information to reflect changes in

assumptions, changes in circumstances or any other events affecting such forward-looking

information, except as required by applicable law.

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

https://www.newsfilecorp.com/release/284655