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AbraSilver Announces Filing of Technical Report for Updated Mineral Resource Estimate on the Diablillos Project

Resource Estimates Technical Reports (NI 43-101)

AbraSilver Announces Filing of Technical

Report for Updated Mineral Resource Estimate

on the Diablillos Project

Toronto, Ontario--(Newsfile Corp. - September 12, 2025) -

AbraSilver Resource Corp. (TSX: ABRA)

(OTCQX: ABBRF) ("AbraSilver" or the "Company")

is pleased to announce that it has filed a

National Instrument 43-101 -

Standards of Disclosure for Mineral Projects

compliant updated mineral

resource estimate (the "Report") on its wholly-owned Diablillos project in Salta province, Argentina.

The Report titled "NI 43-101 Technical Report, Mineral Resource Estimate for the Diablillos Ag-Au

Project" is dated September 12, 2025 and has an effective date of July 29, 2025. There are no material

differences in the Report from the results disclosed in the Company's July 29, 2025 news release. The

Report can be found under the Company's profile on SEDAR+ (

www.sedarplus.ca

) and on the

Company's website (

www.abrasilver.com

).

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/266296