Mineros Returns Capital to Shareholders with its Share Repurchase Program

MEDELLIN, Colombia--(BUSINESS WIRE)--Mineros S.A. (TSX:MSA, MINEROS:CB) (“Mineros” or the “Company”), a leading gold producer in Latin America, is pleased to announce the completion of its share repurchase program, which was previously announced on August 27, 2025. The US$12 million share buyback offer was directed to Colombian shareholders who traded shares on the Colombian Stock Exchange (“BVC”) and remained open for acceptance from September 1, 2025 through September 5, 2025.

The allocation results published in BVC Information Bulletin No. 171, showed that there were 11,377,004 shares tendered - 283% of the approved maximum. Mineros will repurchase a total of 3,956,885 shares at a price of $US2.99 (COP$12,000) per share for a total of US$12 million, which represents a premium of 9.1% compared to the closing price on September 5, 2025. The settlement date for the transaction will be September 12, 2025.

The September 12, 2025 close will result in the full execution of the share repurchase program approved at the General Shareholders' Meeting on March 31, 2025. Consequently, the number of outstanding shares of the Company will decrease from 299,737,402 to 295,780,517 shares after settlement.

David Londoño, President and Chief Executive Officer of Mineros stated, “We continue to see significant upside and positive price movement for Mineros shares. We believe Mineros’ current share price continues to offer significant value to shareholders compared to the universe of peers in the gold mining industry.”

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 including the La Pepa Project in Chile.

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 almost 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”.

This press release is neither an offer to sell nor a solicitation of an offer to buy any securities in the United States or elsewhere.

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.

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.