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SICO.V ·

Silverco Mining Finalizes Name Change

Mergers & Acquisitions Corporate Actions

Silverco Mining Finalizes Name Change

October 31, 2025 – Silverco Mining Ltd. (formerly Quetzal Copper Corp.) (the “Company”) (TSX-

V: SICO) is pleased to announce that , further to its news release dated October 22, 2025, the

Company has completed its name change from “Quetzal Copper Corp.” to “Silverco Mining Ltd.”

(the “Name Change”).

Due to a labour dispute between the British Columbia General Employees’ Union and the

government of British Columbia, BC Registries, the government body responsible for registrations

of businesses, was temporarily closed. As a result, the Company was unable to legally change

its name at the time of completing its reverse takeover of Silverco Mining Corp., which closed on

October 17, 2025.

The Company’s common shares continue to trade on the TSX Venture Exchange under the

trading symbol “SICO” and the Company anticipates its common shares will commence trading

under the new name at market open on November 4, 2025.

There is no change in the capitalization of the Company in connection with the Name Change.

No action is required by existing shareholders of the Company with respect to the Name Change.

Outstanding common shares certificates or DRS notices do not need to be exchanged. The

Company’s new CUSIP number is 827924101 and its new ISIN number is CA8279241019.

Neither the TSX Venture Exchange nor its Regulation Services Provider (as defined in the policies

of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this news

release.

Contact Information

Mark Ayranto

President and CEO

Phone: (778) 888-4010

www.silvercomining.com

About the Company

The Company owns a 100% interest in the 11,665-hectare Cusi Mine Project located in

Chihuahua State, Mexico (the “Cusi Property”). It lies within the prolific Sierra Madre Occidental

gold-silver belt. There is an existing 1,200 ton per day mill with permitted tailings capacity at the

Cusi Property.

The Cusi Property is a permitted, past -producing underground silver -lead-zinc-gold project

approximately 135 kilometers west of Chihuahua City. The Cusi Property boasts excellent

infrastructure, including paved highway access and connection to the national power grid.

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The Cusi Property hosts multiple historical Ag-Au-Pb-Zn producing mines each developed along

multiple vein structures. The Cusi Property hosts several significant exploration targets, including

the extension of a newly identified downthrown mineralized geo logical block and additional

potential through claim consolidation.

Cautionary Note Regarding Forward-Looking Statements

This news release contains statements that constitute “forward-looking statements. ” Such

forward-looking statements involve known and unknown risks, uncertainties and other factors that

may cause the Company’s actual results, performance or achievements, or developments to differ

materially from the anticipated results, performance or achievements expressed or implied by

such forward -looking statements. Forward looking statements are statements that are not

historical facts and are generally, but not always, identified by the words “expects,” “plans,”

“anticipates,” “believes,” “intends,” “estimates,” “projects,” “potential” and similar expressions, or

that events or conditions “will,” “would,” “may,” “could” or “should” occur.

Forward-looking statements in this document include, among others, statements relating to

expectations regarding the commencement of trading under the new name on the TSX Venture

Exchange. By their nature, forward -looking statements involve known and unknown risks,

uncertainties and other factors which may cause our actual results, performance or achievements,

or other future events, to be materially different from any future results, perfor mance or

achievements expressed or implied by such forward -looking statements. Such factors and risks

include, among others: the Company may require additional financing from time to time in order

to continue its operations which may not be available when needed or on acceptable terms and

conditions acceptable; compliance with extensive government regulation; domestic and foreign

laws and regulations could adversely affect the Company’s business and results of operations;

and the stock markets have experienced volatility that often has been unrelated to the

performance of companies and these fluctuations may adversely affect the price of th e

Company’s securities, regardless of its operating performance.

The forward-looking information contained in this news release represents the expectations of the

Company as of the date of this news release and, accordingly, is subject to change after such

date. Readers should not place undue importance on forward-looking information and should not

rely upon this information as of any other date. The Company undertakes no obligation to update

these forward-looking statements in the event that management’s beliefs, estimates or opinions,

or other factors, should change.