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Silver Mountain Announces Resignation of Alfredo Plenge as a Director Toronto ,

Management Changes

SILVER MOUNTAIN ANNOUNCES

RESIGNATION OF ALFREDO PLENGE AS A

DIRECTOR

TORONTO

,

Oct. 17, 2025

/CNW/ - Silver Mountain Resources Inc. ("

Silver Mountain

" or the

"

Company

") (TSXV: AGMR) (OTCQB: AGMRF) (BVL: AGMR) today announces that

Alfredo

Plenge

has resigned from his position as a Director of the Company, effective

October 17, 2025

.

The Company thanks Mr. Plenge for his service and contributions to the board.

Mr.

Plenge Thorne

has been a Director of Silver Mountain since

December 31, 2020

and has

provided valuable experience and guidance to the Company. His decision to step down was made

for personal reasons.

The board of directors extends its sincere appreciation to Mr. Plenge Thorne for his dedication

during his tenure, which included significant company milestones such as Silver Mountain's initial

public offering (IPO) in 2022 and several subsequent financings, secondary stock exchange listings

on the Lima Stock Exchange and OTCQB in 2022, leadership and management transitions,

significant underground drilling campaigns at Reliquias to identify new high-grade mineralization and

extending known veins, a new resource estimate for the Reliquias project doubling the contained

silver content in the measured and indicated categories, consolidating its land position in the

Castrovirreyna district through its acquisition of the Lira de Plata project from Pan American Silver in

2022, delivering a positive PEA in

May 2024

for the Reliquias project highlighting its economic

viability, securing an extension of the Company's Environmental Impact Assessment (EIA) permit

until 2034 and receiving final government approval for its mine closure plan in 2024, signing a 20-

year surface land-use agreements with local communities in 2024 and 2025, a crucial step for

restarting mining operations, and beginning preparatory work for restarting the Reliquias project in

September 2025

, including mine development and maintenance of the processing plant and tailings

facility.

The Company wishes him all the best in his future endeavors.

The board will now consist of José Vizquerra (Chairman),

Juan Carlos Ortiz

,

Julio Arce

,

Tim

Loftsgard

,

Johnny Decooman

and

Gerardo Fernandez

. Mr. Plenge will remain as a consultant to the

Company through a period of transition.

About Silver Mountain Resources Inc.

Silver Mountain Resources Inc. is a Canadian mining company focused on the exploration and

development of silver projects in

Peru

. The Company's principal asset is the Reliquias Project, a

past-producing silver mine located in the Castrovirreyna district of Huancavelica. Silver Mountain is

committed to creating long-term value for its shareholders through responsible mining, strong

community engagement, and sustainable development practices.

www.agmr.ca

Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined

in policies of the TSX Venture Exchange) accepts responsibility for the adequacy or

accuracy of this release.

SOURCE

Silver Mountain Resources Inc.

View original content:

http://www.newswire.ca/en/releases/archive/October2025/17/c4624.html

%SEDAR: 00052252E

For further information:

For further information, please contact: Alvaro Espinoza, Chief Executive

Officer, Silver Mountain Resources Inc., 82 Richmond Street East, Toronto, ON M5C 1P1, +51 997

377 968, [email protected]

CO: Silver Mountain Resources Inc.

CNW 20:28e 17-OCT-25