December 22, 2025

Silver X Mining Announces Management Update

Vancouver, B.C., December 22, 2025 – SILVER X MINING CORP. (TSXV: AGX) (OTCQB: AGXPF) (F: AGX) (“Silver X” or the “Company“) is pleased to provide a management update and announce a senior leadership appointment intended to further strengthen the Company’s corporate development and commercial capabilities.

The Company has promoted Alvaro Domingo from General Manager of Administration and Finance at its Peruvian operating subsidiary, Recuperada S.A.C., to Vice President, Corporate Development and Commercial. Mr. Domingo has been with Silver X for more than four years and has played an important role in strengthening the Company’s administrative, financial, operational and commercial platforms, supporting Silver X’s growth and organizational development.

During his tenure, Mr. Domingo has demonstrated strong leadership, execution discipline and a collaborative approach, with responsibilities expanding beyond finance and administration to include operational coordination and commercial execution.

“Alvaro has been a key contributor to Silver X’s progress over the past several years,” said José García, CEO of Silver X. “His understanding of our operations, combined with his financial and commercial expertise, positions him well to support the Company’s corporate development initiatives and strategic objectives.”

The Company believes that Mr. Domingo’s appointment will further enhance Silver X’s corporate development efforts and commercial execution as it continues to advance its growth strategy.

About Silver X

Silver X is a rapidly expanding silver producer and developer advancing the Nueva Recuperada Project in Peru, a 20,795-hectare, district-scale land package with two mining units and over 200 targets. Current production at the Tangana Mining Unit is scaling alongside the planned restart of the Plata Mine, supporting a path to ~6 million AgEq ounces annually by 2029. With immediate revenue, scalable growth, and long-term discovery upside ¬– all within one integrated project – Silver X is building the next-generation silver company defined by growth, resilience, and responsible mining.

For more information visit our website at www.silverxmining.com.

On Behalf of the Board

José M. García

CEO and Director

For further information, please contact:

Kaitlin Taylor
Investor Relations

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.

Cautionary Statement Regarding “Forward-Looking” Information

This press release contains forward-looking information within the meaning of applicable Canadian securities legislation (“forward-looking information”). Generally, forward-looking information can be identified by the use of forward-looking terminology such as “plans”, “expects” or “does not expect”, “is expected”, “budget”, “scheduled”, “estimates”, “forecasts”, “intends”, “anticipates” or “does not anticipate”, or “believes”, or variations of such words and phrases or state that certain acts, events or results “may”, “could”, “would”, “might” or “will be taken”, “occur” or “be achieved”. All information contained in this press release, other than statements of current and historical fact, is forward looking information. Forward- looking information contained in this press release may include, without limitation, statements in respect of the timing and ability of the Company to complete the Offering; the use of proceeds in connection with the Offering; the ability to obtain all necessary corporate and regulatory approvals, including the approval of the TSX Venture Exchange in connection with the Offering; and the ability to satisfy all conditions to the closing of the Offering, exploration plans, results of operations, expected performance at the Company’s project.

Forward-looking information is subject to known and unknown risks, uncertainties and other factors that may cause the actual results, level of activity, performance or achievements of the Company, as the case may be, to be materially different from those expressed or implied by such forward-looking information, including but not limited to those risks described in the Company’s annual and interim MD&As and in its public documents filed on www.sedar.com from time to time. Forward- looking statements are based on the opinions and estimates of management as of the date such statements are made. Although the Company has attempted to identify important factors that could cause actual results to differ materially from those contained in forward-looking information, there may be other factors that cause results not to be as anticipated, estimated or intended. There can be no assurance that such information 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 information. The Company does not undertake to update any forward-looking information, except in accordance with applicable securities laws.