Mineros launches work program at La Pepa

Mr. Daniel Henao reports MINEROS ADVANCES LA PEPA PROJECT IN CHILE, APPOINTS DEDICATED PROJECT MANAGER Mineros S.A. has formally launched its work program to advance the La Pepa project in Chile, together with the appointment of Rafael Casas Plata as project manager. The company has also voluntarily filed a National Instrument 43-101-compliant technical report for the La Pepa project on SEDAR+. "Rafael's appointment and the mobilization of exploration and development capital, reflect our commitment to rapidly and responsibly advance La Pepa," said Daniel Henao, chief executive officer of Mineros. "While our main strategic focus remains the acquisition of producing gold assets, growing the over-2.0-million-ounce gold resources at La Pepa and fast tracking this gold exploration project will strengthen our position in the Maricunga gold belt, one of the world's most prospective gold districts." Estimated mineral resources at the La Pepa project, effective Oct. 31, 2021, include measured mineral resources of 58,816,000 tonnes (t) averaging 0.61 gram per tonne Au, containing 1.15 million (oz) Au; indicated mineral resources of 65,405,000 t averaging 0.49 g/t, containing 1,039,000 oz Au; and inferred mineral resources of 25,024,000 t averaging 0.46 g/t, containing 366,000 oz Au. Operational update and next steps Following the acquisition of its former joint venture partner's interest in La Pepa project on Sept. 22, 2025, Mineros initiated a structured program to advance the La Pepa project, with a view to disciplined technical progress and early value creation. Project leadership: Rafael Casas Plata, project manager, is a seasoned geologist with over 20 years of experience. Mr. Casas Plata brings extensive experience leading exploration and development programs in Chile. He has directed multidisciplinary teams across discovery, resource definition, engineering studies and early stage project assessments. 2026 work program: Environmental baseline studies and characterization through specialized consultants; Geophysical surveys to refine geological models and identify new targets; Infill and stepout drill holes to increase confidence in the existing mineral resource and test potential extensions, supporting the updating of mineral resource estimations; Technical data collection (hydrogeology, geomechanics and mineral processing) to support engineering and economic assessments ahead of a future feasibility study. Strategic rationale: building a third key jurisdiction Integrating La Pepa establishes Chile as Mineros's third operating jurisdiction, enhancing geographic diversification and positioning the company within a premier gold region. Key advantages include: Located in the prolific Maricunga gold belt, surrounded by producing mines and advanced projects; Access to established regional infrastructure, including reliable power, logistics and transport corridors; Availability of a highly skilled mining work force and technical service ecosystem; A stable, transparent and mining-friendly regulatory environment. About the La Pepa project The La Pepa project is a gold exploration project located in the Maricunga belt in Chile's Atacama region, approximately 800 kilometres north of Santiago and 110 km east of Copiapo via International Road CH-31. La Pepa project is 100 per cent owned by Minera Cavancha SpA, a wholly owned Mineros subsidiary. The prolific Maricunga district hosts more than 70 million ounces of gold, including operating assets and projects operated by major mining companies like La Coipa, Refugio, Volcan, Caspiche, Lobo Marte and Cerro Casale. 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 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, 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. Qualified person The scientific and technical information contained in this news release was approved by Maria Vallejo, PEng, FAusIMM, Mineros's vice-president, growth and business development, who is a qualified person within the meaning of National Instrument 43-101, and who is not independent of the company. We seek Safe Harbor.