Ms. Ann Wilkinson reports

MINEROS BOARD AUTHORIZES POTENTIAL PARTICIPATION BY DIRECTORS AND MANAGEMENT IN SUN VALLEY PUBLIC TENDER OFFER

Mineros SA's board of directors has granted an authorization required under applicable Colombian laws to permit directors and management to buy or sell issued and subscribed ordinary shares of Mineros in the market. Authorization was granted in the context of the amended Sun Valley offer, as such term was defined in the news release issued March 4, 2025, and will last for seven calendar days, concluding on Thursday, March 20, 2025. Any decision to participate in the amended Sun Valley offer or to buy or sell Mineros shares in the market remains at the discretion of the directors and management of Mineros. The authorization was granted in strict compliance with Mineros's policy on the use of privileged information and related applicable regulations, at a meeting held on March 13, 2025, as recorded in minute No. 583 of the board. In accordance with applicable Colombian laws and regulations, the board granted the authorization under the condition that no privileged information was held by any member of the board or management.

About Mineros SA

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.

The board of directors and management of Mineros have extensive experience in mining, corporate development, finance and sustainability. Mineros has a long 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's common shares are listed on the Toronto Stock Exchange under the symbol MSA and on the Colombia Stock Exchange under the symbol MINEROS.

We seek Safe Harbor.