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Mineros Resolves Tax Dispute With Nicaraguan Tax Authorities

Legal & Disputes

Mineros Resolves Tax Dispute With Nicaraguan Tax Authorities

(all amounts are expressed in U.S. dollars)

MEDELLÍN, Colombia--(BUSINESS WIRE)--December 19, 2025--Mineros S.A. (TSX: MSA, OTCQX:

MNSAF, BVC: MINEROS) (“Mineros” or the “Company”) announces that today, after consulting with its legal

and tax advisors, it has determined to resolve a tax dispute with the Government of Nicaragua through the

payment of approximately $49.3 million in respect of unpaid ad-valorem taxes and related interest for the years

2019 to 2024, claimed by the Government of Nicaragua.

ABOUT MINEROS S.A.

Mineros is a Latin American gold mining company headquartered in Medellín, Colombia. The Company has a

diversified asset base, with mines in Colombia and Nicaragua and a pipeline of development and exploration

projects throughout the region. The board of directors and management of Mineros have extensive experience in

mining, corporate development, finance and sustainability. Mineros has a long track record of maximizing

shareholder value and delivering solid annual dividends. For over 50 years Mineros has operated with a focus on

safety and sustainability at all its operations.

Mineros’ common shares are listed on the Toronto Stock Exchange under the symbol “MSA”, and on the

Colombia Stock Exchange under the symbol “MINEROS”. Mineros shares also trade on the OTCQX® Best

Market, symbol MNSAF.

Election of Directors – Electoral Quotient System

The Company has been granted an exemption from the individual voting and majority voting requirements

applicable to listed issuers under Toronto Stock Exchange policies, on grounds that compliance with such

requirements would constitute a breach of Colombian laws and regulations which require the directors to be

elected on the basis of a slate of nominees proposed for election pursuant to an electoral quotient system. For

further information, please see the Company’s most recent annual information form, available on the Company’s

website at https://www.mineros.com.co/ and from SEDAR+ at www.sedarplus.com.

FORWARD-LOOKING STATEMENTS

This news release contains “forward looking information” within the meaning of applicable Canadian securities

laws. Forward looking information includes statements that use forward looking terminology such as “may”,

“could”, “would”, “will”, “should”, “intend”, “target”, “plan”, “expect”, “budget”, “estimate”, “forecast”,

“schedule”, “anticipate”, “believe”, “continue”, “potential”, “view” or the negative or grammatical variation

thereof or other variations thereof or comparable terminology. Such forward looking information includes,

without limitation, statements with respect to the resolution of tax dispute in Nicaragua and the final payment

amount.

Forward looking information is based upon estimates and assumptions of management in light of management’s

experience and perception of trends, current conditions and expected developments, as well as other factors that

management believes to be relevant and reasonable in the circumstances, as of the date of this news release.

While the Company considers these assumptions to be reasonable, the assumptions are inherently subject to

significant business, social, economic, political, regulatory, competitive and other risks and uncertainties,

contingencies and other factors that could cause actual actions, events, conditions, results, performance or

achievements to be materially different from those projected in the forward-looking information. Many

assumptions are based on factors and events that are not within the control of the Company and there is no

assurance they will prove to be correct.

For further information of these and other risk factors, please see the “Risk Factors” section of the Company’s

annual information form dated March 31, 2025, available on SEDAR+ at www.sedarplus.com.

The Company cautions that the foregoing lists of important assumptions and factors are not exhaustive. Other

events or circumstances could cause actual results to differ materially from those estimated or projected and

expressed in, or implied by, the forward-looking information contained herein. There can be no assurance that

forward-looking information will prove to be accurate, as actual results and future events could differ materially

from those anticipated in such information. Accordingly, readers should not place undue reliance on forward-

looking information.

Forward-looking information contained herein is made as of the date of this news release and the Company

disclaims any obligation to update or revise any forward-looking information, whether as a result of new

information, future events or results or otherwise, except as and to the extent required by applicable securities

laws.

Contacts

For further information, please contact:

Ann Wilkinson

Vice President, Investor Relations

+1 (647) 496-3011

[email protected]

Juan Obando

Director, Investor Relations

(+57) 574 266 5757

[email protected]