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ATY.V ·

Operations and Exploration Drilling Resumes at The El Roble Mine

Exploration Programs

(1) Alternative performance measures; please refer to “Non-GAAP Financial Measures” at the end of this release.

(2) Net of by-product credits

(3) Subject to adjustments on final settlement

Page 1 of 3

Operations and Exploration Drilling Resumes at The El Roble Mine

Vancouver, April 29, 2019 -- Atico Mining Corporation (the “Company” or “Atico”) (TSX.V:

ATY | OTC: ATCMF) is pleased to announce the end of the labor strike at its El Roble mine in

Colombia. The Company has resumed all operations and re-initiated its diamond drill exploration

program on the 6,300-ha land package.

It is expected that operations will reach normal levels within the following hours. Throughout the

remainder of the year, the Company will make every operational effort to make up for as much

lost production as possible.

2019 Adjusted Guidance

Due to the union negotiations and the strike at the El Roble Mine, the Company is adjusting the

annual guidance as follows:

2019 Adjusted Production and Cost Guidance Previous New

Copper (000s pounds) 20,000 to 21,000 17,000 to 18,000

Gold (ounces) 10,200 to 10,700 9,000 to 9,700

C1 Cash Cost ($US)(1) $1.50 to $1.55 $1.55 to $1.60

Note: Please see “ Non-GAAP Financial Measures” at the end of this release. C1 cash cost per pound of payable

copper produced net of by-product credits and selling costs.

El Roble Mine

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

plant capacity of 8 50 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.

El Roble has Proven and Probable reserves of 1.47 million tonnes grading 3.40% copper and 1.88

g/t gold, at a cut-off grade of 1.93% copper equivalent as of June 30th, 2018. 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 volcanogenic massive sulfide (“VMS”) mineralization on which Atico has identified numerous

(1) Alternative performance measures; please refer to “Non-GAAP Financial Measures” at the end of this release.

(2) Net of by-product credits

(3) Subject to adjustments on final settlement

Page 2 of 3

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 accurate 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 ope rates the El Roble mine and is pursuing

additional acquisition 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.

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

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

amended (the ‘‘U.S. Securities Act’’), or any state securities laws, and may not be offered 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.

(1) Alternative performance measures; please refer to “Non-GAAP Financial Measures” at the end of this release.

(2) Net of by-product credits

(3) Subject to adjustments on final settlement

Page 3 of 3

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

uncertainties relating to interpretation of drill re sults and the geology, continuity and grade 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; uncerta inty 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 regulato ry

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 Compan y's Management's Discussion and Analysis for the year ended December 31, 2018 as filed

on SEDAR and as available on the Company's website for further details.