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Mineros Receives Credit Ratings From S&P and Moody's for Proposed Senior Unsecured Notes

Debt & Credit Facilities

Mineros Receives Credit Ratings From S&P and Moody's for Proposed

Senior Unsecured Notes

MEDELLIN, Colombia--(BUSINESS WIRE)--October 22, 2025--Mineros S.A. (TSX:MSA,

OTCQX:MNSAF, MINEROS:CB) (“Mineros” or the “Company”) is pleased to announce that

the Company has received initial credit ratings from two major global credit rating agencies,

S&P Global Ratings and Moody's Ratings, for its proposed offering of Senior Unsecured Notes.

The receipt of these ratings is a significant step forward as the Company executes its strategy to

secure debt financing for long-term growth and capital expenditure programs.

The assigned ratings for the Proposed Senior Unsecured Notes are 'B+' from S&P Global Ratings

and 'B1' from Moody's Ratings, both with a Stable outlook.

David Splett, CFO of Mineros S.A., commented: “The successful assignment of initial credit

ratings from two highly respected global agencies, S&P and Moody’s, represents a pivotal

achievement for Mineros. The 'B+' and 'B1' ratings with a Stable outlook are a strong third-party

validation of our robust financial position, consistent operating results, and disciplined growth

strategy. This essential step positions us optimally to access the international debt capital markets

and finance our strategic initiatives, including key growth projects across our portfolio.”

The Stable outlook assigned by both agencies reflects the Company's consistent operating

performance and diversified asset base in Latin America.

ABOUT MINEROS S.A.

Mineros is a Latin American gold mining company headquartered in Medellin, 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 offering, entry into a senior revolving credit

facility, the terms of the notes and the senior revolving credit facility, and the use of proceeds of

the offering.

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. In particular, all statements in this press release relating to the consummation of any

senior notes offering or revolving credit facility are forward looking and subject to risks and

uncertainty. 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

Ann Wilkinson

Vice President, Investor Relations

+1 (647) 496-3011

[email protected]

Juan Obando

Director, Investor Relations

(+57) 574 266 5757

[email protected]