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MINEROS AND ROYAL ROAD INTERSECT 303.7 METRES OF 1.1 GRAMS PER TONNE GOLD EQUIVALENT IN NEWLY DISCOVERED PORPHYRY COPPER-GOLD SYSTEM AT THE GUINTAR-NIVERENGO MARGARITAS EXPLORATION TARGET, COLOMBIA Includes 62.0 metres at 3.3 grams per tonne gold equivalent

Drill Results

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MINEROS AND ROYAL ROAD INTERSECT 303.7 METRES OF 1.1 GRAMS PER TONNE GOLD

EQUIVALENT IN NEWLY DISCOVERED PORPHYRY COPPER-GOLD SYSTEM AT THE

GUINTAR-NIVERENGO MARGARITAS EXPLORATION TARGET, COLOMBIA

Includes 62.0 metres at 3.3 grams per tonne gold equivalent

Medellin, Colombia – December 14, 2021 – Mineros S. A. (TSX:MSA, MINEROS:CB) (“ Mineros ” or the

“Company ”) is pleased to announce results from the first three drill holes of a follow-up drilling program

undertaken by the Company’s partner at the Guintar-Niverengo Margaritas Exploration Target (the “GNM

Exploration Target”) in Colombia.

The GNM Exploration Target is comprised of the cont iguous Guintar and Niverengo concessions (the

“Guintar Target Area” and “Niverengo Target Area”, respectively) and the neighboring Margaritas

concessions (the “Margaritas Target Area”), located in the Middle Cacua Metallogenic belt, within the

Anza mining district, approximately 50 kilometres w est of Medellin, Antioquia, Colombia. The GNM

Exploration Target was acquired by Royal Road Minerals (TSXV:RYR; “Royal Road”) through their purchase

of Northern Colombia Holdings Limited, an affiliate of AngloGold Ashanti Limited. The GNM Exploration

Target is subject to a strategic alliance agreement (the “Agreement”) between the Company and Royal

Road. Under the terms of the Agreement, Royal Road are operators and Mineros has earned a 25%

interest in the GNM Exploration Target by funding i nitial exploration expenditures of US$1 million.

Mineros may acquire a further 25% interest, bringing its interest to 50%, by paying a further US$1.5 million

to fund exploration expenditures. For further information on the Agreement see the final prospectus of

the Company dated November 11, 2021, available on SEDAR at www.sedar.com .

Andrés Restrepo, President and CEO of Mineros, comm ented “Although the exploration of the GNM

Exploration Target is in its early stages, the drill results from the Guintar Target Area announced today are

very promising. We look forward to continuing to up date the market on the results of our work with

partner Royal Road Minerals on this exciting new Colombian copper-gold porphyry target.”

The Company has received results from the first thr ee diamond drill holes at the Guintar Target Area.

Significant intercepts are presented in Table 1 and highlights include:

GUI-DD-011:

 17.9 metres1 (“m”) of 0.9 grams per tonne gold (“g/t Au”), starting at a downhole depth of

99.7 m

GUI-DD-012:

 303.7 m1 of 1.1 grams per tonne gold equivalent (“g/t AuEq”), starting at a downhole depth

of 17.0 m and continuing to the end of the hole, in cluding 62.0 m of 3.3 g/t AuEq, starting

at a downhole depth of 143.0 m

GUI-DD-013:

 126.0 m1 of 1.4 g/t AuEq 2, starting at a downhole depth of 68.0 m, including 55.0 m of 2.6

g/t AuEq, starting at a downhole depth of 120.0 m, and

 44.0 m1 of 1.1 g/t Au, starting at a downhole depth of 351.0 m

1 Not true width; sufficient information is not yet available to make a determination of the true widths of the drill hole

intersections.

2 Gold equivalent calculation based on USD $1790/ounce gold, USD $22/ounce silver and USD $4.30/pound copper.

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Drill hole GUI-DD-011 intersected gold mineralized basement rocks belonging to the early-Cretaceous

Barroso Formation with low-grade gold (entire drill hole returned 0.2 g/t Au over 400.56 m) disseminated

through the hornfels-altered sequence and higher gr ade intervals (9.8 g/t Au over 1.6 m) related to

lithological contacts and more porous conglomerate units. No porphyritic intrusive rocks were intercepted

in drill hole GUI-DD-011.

Drill hole GUI-DD-012 was collared in lower-grade, gold and copper mineralized mostly chloritic hornfels

to 93 m downhole depth, at which point the drill ho le passed into a porphyritic intrusive suite, strongly

altered with biotite alteration related to quartz-c halcopyrite-pyrrhotite mineralized stockwork veinlets

and albite related to chalcopyrite-pyrrhotite miner alized sheeted veinlets (Figure 1). Gold, copper an d

silver are related to both stockwork and sheeted ve inlet styles of mineralization. Not applying a cut off,

the entire drill hole GUI-DD-012 returned 320.7 m a t 1.1 g/t AuEq from surface. This intersection is t he

first indication of significant porphyry-style copper and gold mineralization on the Guintar Target Area.

Drill hole GUI-DD-013 was drilled below GUI-DD-012 (Figure 1) and intersected the biotite-altered

intrusive suite with associated mineralization at a down hole depth of 118.0 m. The entire drill hole

returned 588.3 m at 0.7 g/t AuEq. Deeper gold-only mineralization (44.0 m at 1.1 g/t Au from 351.0 m)

may be related to a more amphibole-rich intrusive suite.

Table 1. Significant Diamond Drill Results for GUI-DD-011 to GUI-DD-013.

Drill Easting Northing Elevation Dip Azimuth Depth From To Interval Au Ag Cu AuEq

Hole ID (m) (m) (m) (m) (m) (g/t) (g/t) (%) (g/t)

GUI-DD-011 391643 698953 2244 -75 180 400.6 8.0 18.0 10.0 1.0 4.4 1.1

99.7 117.6 17.9 0.9 1.9 0.9

238.9 242.0 3.2 1.3 2.4 1.3

291.7 296.1 4.4 0.9 1.7 0.9

GUI-DD-012 391870 698821 2185 -60 360 320.7 17.0 320.7 303.7 0.7 4.3 0.22 1.1

incl.

143.0 205.0 62.0 2.1 12.4 0.62 3.3

GUI-DD-013 391870 698821 2185 -80 360 588.3 68.0 194.0 126.0 0.8 5.5 0.34 1.4

incl.

120.0 175.0 55.0 1.5 10.8 0.60 2.6

311.0 314.0 3.0 2.4 2.4

351.0 395.0 44.0 1.1 2.1 1.1

441.0 447.0 6.0 1.0 1.0

510.5 516.5 6.0 1.2 3.9 1.3

The current drill campaign on the Guintar concessio n is planned to comprise approximately 5,000 m of

diamond drilling aimed at testing the deeper parts of the mineralized system. A total of 3,422 m in ni ne

diamond drill holes has been completed as of November 30, 2021.

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Figure 1. Geological map and cross section of diamond drill holes GUI-DD-11 to GUI-DD-13, Guintar Target

Area, Colombia (Source: Royal Road).

QUALIFIED PERSON

The scientific and technical information in this ne ws release has been reviewed and approved by Jorge

Aceituno, a Registered Member of the Chilean Mining Commission and the Planning Manager, Resources

and Reserves for Mineros. Mr. Aceituno is a qualified person within the meaning of National Instrument

43-101 Standards of Disclosure for Mineral Properties (“NI 43-101”).

QUALITY ASSURANCE AND QUALITY CONTROL

Royal Road employees working on the GNM Exploration Target are instructed to follow standard

operating and quality assurance procedures intended to ensure that all sampling techniques and sample

results meet international reporting standards.

Sample preparation and analyses are conducted according to standard industry procedures. Soil samples

are taken dry, sieved to -180 micron (80 mesh) and analyzed for gold by fire assay and ICP-AES and multi-

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elements by ICP-MS after aqua regia digestion. Analytical performance is monitored by means of certified

reference materials, fine blanks, and laboratory du plicate samples. Soil samples have been prepared in

ALS Chemex preparation lab in Colombia and analyses have been completed in ALS Chemex Lima, using

the PREP-41, Au-ICP 21 and ME-MS61 package.

FORWARD-LOOKING STATEMENTS

This press release contains "forward-looking information" and "forward-looking statements" (collectively,

"forward-looking information") within the meaning o f applicable securities laws. Forward-looking

information may relate to the Company's future fina ncial outlook and anticipated events or results and

may include information regarding the Company's financial position, business strategy, growth strategies,

addressable markets, budgets, operations, financial results, taxes, dividend policy, plans and objectives.

Particularly, information regarding the Company's e xpectations of future results, performance,

achievements, prospects or opportunities or the mar kets in which the Company operates is forward-

looking information. In some cases, forward-looking information can be identified by the use of forward-

looking terminology such as "plans", "targets", "expects", "budgets", "scheduled", "estimates", "outlook",

"forecasts", "projects", "prospects", "strategy", "intends", "anticipates", "believes", or variations of such

words and phrases or statements that certain actions, events or results "may", "could", "would", "might",

or "will" occur. In addition, any statements that r efer to expectations, intentions, projections or ot her

characterizations of future events or circumstances contain forward-looking information. Statements

containing forward-looking information are not hist orical facts but instead represent management's

expectations, estimates and projections regarding future events or circumstances. The forward-looking

information contained herein includes, without limi tation, statements with respect to the Company’s

option to acquire a further 25% interest in the GNM Exploration Target, future drilling at the GNM

Exploration Target, and the nature, location, and quality of potential gold mineralization at the GNM

Exploration Target.

Forward-looking information is necessarily based on a number of opinions, estimates and assumptions

that, while considered by the Company to be appropr iate and reasonable as of the date of this press

release, are subject to known and unknown risks, uncertainties, assumptions and other factors that may

cause the actual results, level of activity, perfor mance or achievements to be materially different fr om

those expressed or implied by such forward-looking information. Such risks and uncertainties include, but

are not limited to, market conditions, the price of gold, currency fluctuations, and the factors discussed

under “Risk Factors” in the final prospectus of the Company dated November 11, 2021 (the “Final

Prospectus”), available on SEDAR at www.sedar.com .

If any of these risks or uncertainties materialize, or if the opinions, estimates or assumptions underlying

forward-looking information prove incorrect, actual results or future events might vary materially fro m

those anticipated in forward-looking information.

Although the Company has attempted to identify important risk factors that could cause actual results to

differ materially from those contained in forward-looking information, there may be other risk factors not

presently known to the Company or that the Company presently believes is not material that could also

cause actual results or future events to differ mat erially from those expressed in such forward-lookin g

information. There can be no assurance that such information will prove to be accurate, as actual results

and future events could differ materially from those anticipated in such information. Accordingly, readers

should not place undue reliance on forward-looking information, which speaks only as of the date made.

Forward-looking information contained in this press release represents the Company's expectations as of

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the date of this press release (or as of the date they are otherwise stated to be made), and are subject to

change after such date. The Company disclaims any i ntention or obligation or undertaking to update or

revise any forward-looking information whether as a result of new information, future events or

otherwise, except as required under applicable securities laws.

ABOUT MINEROS S.A.

Mineros is a Latin American gold mining company hea dquartered in Medellin, Colombia. The Company

has a diversified asset base, with mines in Colombi a, Nicaragua and Argentina and a pipeline of

development and exploration projects throughout the region.

The board of directors and management of Mineros ha ve 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 5 0 years Mineros has operated with a focus on safety

and sustainability at all our 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

(647) 496-3011

[email protected]

Patricia Ospina

Investor Relations Manager

(+57) 42665757

[email protected]