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MSA.TO ·

Mineros Provides Notice of First Quarter 2022 Results and Conference Call

Financials

Medellin, Colombia – April 27, 2022 – Mineros S.A. (TSX:MSA, MINEROS:CB) (“Mineros” or the “Company”) will release its first quarter 2022 financial results after market close on Monday, May 9, 2022. Senior management will host a conference call on Tuesday May 10, 2022, at 9:00 am ET (8:00 am COT) to discuss the results. The conference call will be in Spanish with simultaneous translation in English.

Participant conference call dial in:

Canada Toll Free: 1 (866) 455-3403 US Toll Free: 1 (888) 374-5140 Pin for English: 99878428# Pin for Spanish: 38745764#

The list of all local and international dial in numbers can be found at the end of this document. A live webcast of the conference all will be available at:

https://onlinexperiences.com/Launch/QReg/ShowUUID=97D7F934-543D-4421-831D- 35F7DEF619D9&LangLocaleID=1034

Live webcast requires previous registration, and interested parties are advised to access the webcast approximately ten minutes prior to the start of the call. The webcast will be archived on the Company’s website at www.mineros.com.co for approximately 30 days following the call.

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, Nicaragua and Argentina 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 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”.

For further information, please contact:

Fiona Childe Investor Relations +1 (647) 496-3011 [email protected]

Patricia Ospina Investor Relations Manager (+57) 42665757 [email protected]

Joshua Lavers Renmark Financial Communications Inc.

+1 (416) 644-2020 or +1 (212) 812-7680 [email protected]

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 filed on SEDAR at www.sedar.com.

Participant conference call dial in

Pin for English: 99878428# Pin for Spanish: 38745764#

Australia Toll-Free: 8004440879 Australia Toll: +61283115350 Brazil Toll-Free: 8007610711 Brazil Toll: +551140403733 Canada Toll-Free: 8664553403 Canada Toll: 6474848332 PIN: 99878428# Chile Toll-Free: 12300205906 China Toll-Free: 108001202400 China Toll: 4008210576 Colombia Toll-Free: 018005190788 Colombia Toll: +57 6014850348 France Toll-Free: 805102712 France Toll: +33172256760 Germany Toll-Free: 8001897777 Germany Toll: +496922221158 Hong Kong Toll-Free: 800933752 India Toll-Free: 18002667181 Japan Toll-Free: 6633812339 Japan Toll: +81345789384 Malaysia Toll-Free: 1800189583 Mexico Toll-Free: 18667791760 Mexico Toll: +525567225258 Netherlands Toll: +31207139245 Romania Toll: +40316300531 Singapore Toll-Free: 8001205193 Spain Toll-Free: 800300874 Spain Toll: +34914149964 Sweden Toll-Free: 200896845 Sweden Toll: +46850596402 Taiwan Toll-Free: 801136018 Thailand Toll-Free: 001800120666601 United Kingdom Toll-Free: 8082389813 United Kingdom Toll: +442031004191 United States Toll-Free: 8663745140 United States Toll: 4044000571