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Mineros Provides Update on the Accident at its Nechi Alluvial Property

Mine Development & Operations

Mineros Provides Update on the Accident at its Nechi Alluvial Property

Medellin, Colombia – June 3, 2022 – Mineros S.A. (TSX:MSA, MINEROS:CB) (“Mineros” or the

“Company”) is today providing an update on the fatal accident at its Nechi Alluvial Property

(“Nechi”), Colombia, which was initially reported by the Company in its news release of May 29,

2022.

On May 28, 2022, a storm with heavy rains and strong winds hit Nechi and overturned the floating

beneficiation plant connected to the Llanuras suction dredge (the “Plant”). A total of eight people

were working on the Plant at the time of the accident. All eight have now been accounted for, with

two employees rescued uninjured and the remaining six confirmed dead. Counseling and support

is being provided to the affected families and personnel.

“As a company and a community, we mourn the loss of six lives and extend our most sincere

condolences to the families, friends and colleagues affected by this tragic accident. Mineros

remains committed to providing support to the community, where we have operated for almost

fifty years,” said Andrés Restrepo, President and CEO of Mineros . “On behalf of Mineros, I would

like to thank all of those who assisted in the rescue and recovery efforts at Nechi.”

Immediately following the accident the Company’s emergency protocols were activated. A rescue

operation commenced, and was f ollowed by coordinated search, and subsequent recovery

operations. These operations are now complete and accident investigations by both the relevant

Colombian authorities and independent investigators hired by the Company are underway.

To date no environmental impact has been reported from the storm or the overturning of the Plant.

The Company will continue to monitor the environmental situation and has informed the relevant

environmental authorities.

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.