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ATY.V ·

Atico Produces 4.50 Million Pounds of Cu and 2,134 Ounces of Au First Quarter 2021

Production Results

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Atico Produces 4.50 Million Pounds of Cu and 2,134 Ounces of Au First Quarter

2021

Vancouver, April 26, 2021 -- Atico Mining Corporation (the “Company” or “Atico”) (TSX.V:

ATY | OTC: ATCMF) announces its operating results for the three months ended March 31,

2021 from its El Roble mine. Production for the quarter totaled 4.50 million pounds of copper

and 2,134 ounces of gold in concentrates, a decrease of 8% and 22% for copper and gold,

respectively, over the same period in 2020.

“At the El Roble mine production faced significant challenges this quarter, as we experienced

heavy rains during the dry season along with a week -long mill stoppage in February. Despite

these challenges, the team was able to adjust and deliver with in guidance for most metrics while

setting a course to compensate for downtime” said Fernando E. Ganoza, CEO. “ At the current

metal price environment, the Company anticipates robust financials to follow at these

production levels. We remain committed to complying with COVID-19 guidelines and

regulations from local authorities in the jurisdictions where we operate while putting

tremendous emphasis on the health and safety of all of our employees.”

First Quarter Operational Highlights

• Production of 4.50 million pounds of copper contained in concentrates; a decrease of 9%

over Q1 2020.

• Production of 2,134 ounces of gold contained in concentrates ; a decrease of 22% over

Q1 2020.

• Average processed tonnes per day of 954, an increase of 9% over Q1 2020.

• Copper head grade of 3.23%, a decrease of 2% over Q1 2020.

• Gold head grade of 1.71 grams per tonne; a decrease of 12% over Q1 2020.

• Copper and gold recovery of 92.4% and 56.9%; no significant change for copper and a

decrease of 3% for gold over Q1 2020

First Quarter Operational Review

Mined and processed ore was below Company budget for the first quarter caused primarily by

the temporary work stoppage as a result of a tailings pipe malfunction and to a lesser extent by

a much heavier rainy season this year. The decre ase for copper and gold output for the quarter

relative to Q1 2020 is mostly explained by 7% decrease in processed ore, while for gold an

additional factor was a 12% decrease in head grade. Copper recoveries slightly improved when

compared to the same period last year, while gold recoveries during the quarter were in line with

Company projections. Gold recovery decrease is due to an increase in the copper content in the

concentrate, this increase in the copper content in the concentrate provides a net economic

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benefit, especially at current copper prices, offsetting the decrease in gold recovery. The

Company will continue to explore improving the copper content in the concentrate in the

following quarters while increasing the gold recovery.

First Quarter Operational Details

Q1 2021

Total

Q1 2020

Total

% Change

Production (Contained in Concentrates)

Copper (000s pounds) 4,503 4,926 -8%

Gold (ounces) 2,134 2,736 -22%

Mine

Tonnes of ore mined 64,101 72,777 -12%

Mill

Tonnes processed 68,282 73,374 -7%

Tonnes processed per day 954 878 9%

Copper grade (%) 3.23 3.31 -2%

Gold grade (g/t) 1.71 1.96 -12%

Recoveries

Copper (%) 92.4 91.9 Nil%

Gold (%) 56.8 59.0 -3%

Concentrates

Copper and Gold Concentrates (dmt) 10,365 10,213 1%

Payable copper produced (000s lbs) 4,278 4,680 -9%

Note: Metal production figures are subject to adjustments based on final settlement. The reported results

are preliminary in nature and are awaiting independent lab verification.

El Roble Mine

The El Roble mine is a high grade, underground copper and gold mine with nominal processing

plant capacity of 1,000 tonnes per day, located in the Department of Choco in Colombia. Its

commercial product is a copper-gold concentrate.

Since obtaining control of the mine on November 22, 2013, Atico has upgraded the operation

from a historical nominal capacity of 400 tonnes per day.

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El Roble has Proven and Probable reserves of 1.00 million tonnes grading 3.02% copper and

1.76 g/t gold, at a cut -off grade of 1.3% copper equivalent as of September 30 th, 2020.

Mineralization is open at depth and along strike and the Company plans to further test the limits

of the deposit.

On the larger land package, the Company has identified a prospective stratigraphic contact

between volcanic rocks and black and grey pelagic sediments and cherts that has been traced by

Atico geologists for ten kilometers. This contact has been determined to be an important control

on VMS mineralization on which Atico has identified numerous target areas prospective for

VMS type mineralization occurrence, which is the focus of the current surface drill program at

El Roble.

Qualified Person

Mr. Thomas Kelly (SME Registered Member 1696580), advisor to the Company and a qualified

person under National Instrument 43-101 standards, is responsible for ensuring that the technical

information contained in this news release is an ac curate summary of the original reports and

data provided to or developed by Atico.

About Atico Mining Corporation

Atico is a growth-oriented Company, focused on exploring, developing and mining copper and

gold projects in Latin America. The Company gener ates significant cash flow through the

operation of the El Roble mine and is developing its high -grade La Plata VMS project in

Ecuador. The Company is also pursuing additional acquisition of advanced stage opportunities.

For more information, please visit www.aticomining.com.

ON BEHALF OF THE BOARD

Fernando E. Ganoza

CEO

Atico Mining Corporation

Trading symbols: TSX.V: ATY | OTC: ATCMF

Investor Relations

Igor Dutina

Tel: +1.604.633.9022

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of

the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

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No securities regulatory authority has either approved or disa pproved of the contents of this news release. The

securities being offered have not been, and will not be, registered under the United States Securities Act of 1933,

as amended (the ‘‘U.S. Securities Act’’), or any state securities laws, and may not be off ered or sold in the United

States, or to, or for the account or benefit of, a "U.S. person" (as defined in Regulation S of the U.S. Securities Act)

unless pursuant to an exemption therefrom. This press release is for information purposes only and does not

constitute an offer to sell or a solicitation of an offer to buy any securities of the Company in any jurisdiction.

Cautionary Note Regarding Forward Looking Statements

This announcement includes certain “forward -looking statements” within the meaning of Canadian securities

legislation. All statements, other than statements of historical fact, included herein, without limitation the use of

net proceeds, are forward-looking statements. Forward- looking statements involve various risks and uncertainties

and are based on certain factors and assumptions. There can be no assurance that such statements will prove to

be accurate, and actual results and future events could differ materially from those anticipated in such statements.

Important factors that could cause actual results to differ materially from the Company’s expectations include

uncertainties relating to interpretation of drill results and the geology, continuity and g rade of mineral deposits;

uncertainty of estimates of capital and operating costs; the need to obtain additional financing to maintain its

interest in and/or explore and develop the Company’s mineral projects; uncertainty of meeting anticipated

program milestones for the Company’s mineral projects; and other risks and uncertainties disclosed under the

heading “Risk Factors” in the prospectus of the Company dated March 2, 2012 filed with the Canadian securities

regulatory authorities on the SEDAR website at www.sedar.com

Non-GAAP Financial Measures

The items marked with a "(1)" are alternative performance measures and readers should refer to Non -GAAP

Financial Measures in the Company's Management's Discussion and Analysis for the nine months ended September

30, 2016 as filed on SEDAR and as available on the Company's website for further details.