Mineros to be added to MSCI Colombia Small Cap Index

Mr. Daniel Henao reports MINEROS JOINS MSCI COLOMBIA SMALL CAP INDEX Mineros SA is to be included in the MSCI Colombia Small Cap Index, effective on Nov. 30, 2025, as part of the index provider's most recent rebalancing. This significant milestone recognizes the company's sustained market performance and improvements in liquidity and market capitalization on the Colombian Stock Exchange. Inclusion in this widely recognized index is expected to generate immediate and long-term benefits for Mineros and its shareholders. "We are very pleased with our inclusion in the MSCI Colombia Small Cap Index," said Daniel Henao, chief executive officer of Mineros. "This milestone is a reflection of the hard work and dedication of the Mineros team, and I want to express my sincere gratitude to them and to our shareholders for their continued trust and support in this journey. This inclusion is a validation of the value Mineros has created and the strong performance of our stock over the past year. Being part of the index enhances our market relevance, not only locally but also globally, as funds that track the index will now gain exposure to Mineros shares." Mineros is the top-performing stock on the BVC for the second-consecutive year. Its year-to-date total return is 249 per cent as of market close on Nov. 19, 2025. Mineros also achieved a total return of 131 per cent in 2024. The company anticipates that the addition to the MSCI Colombia Small Cap Index will positively impact the stock through greater market awareness, improved liquidity and wider ownership of the stock. 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 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 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's 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 under the symbol MNSAF.