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Atico Mining Files Amended and Restated Rights Offering Circular and LIFE Offering Document

Financings

Atico Mining Files Amended and Restated Rights Offering Circular and LIFE

Offering Document

THIS NEWS RELEASE IS NOT FOR DISTRIBUTION TO U.S. NEWSWIRE SERVICES FOR DISSEMINATION IN THE

UNITED STATES

VANCOUVER, British Columbia, June 13, 2025 -- Atico Mining Corporation (the “ Company” or “Atico”) (TSX.V: ATY | OTC:

ATCMF) announces that, further to its press release dated June 9, 2025, in connection with its concurrent Rights Offering (as

defined below) and LIFE Offering (as defined below), the Company has filed an amended and restated rights offering circular

(the “Circular”) and an amended and restated offering document for the LIFE Offering (the “ LIFE Offering Document ”, and

together with the Circular, the “Offering Documents”).

The Offering Documents have been amended to disclose the term sheet (the “ Term Sheet ”) entered into between the

Company and Trafigura PTE. Ltd. (“Trafigura”), regarding an amendment and extension of the Company’s existing secured

credit agreement with Trafigura. Further details about the Term Sheet are available in the Offering Documents and in the

Company’s press release dated June 13, 2025.

The Company is undertaking a rights offering to raise gross proceeds of up to approximately $5,336,592 (the “ Rights

Offering”) and concurrent offering under the listed issuer financing exemption to raise gross proceeds of up to approximately

$3,200,000 (the “LIFE Offering ”, and together with the Rights Offering, the “ Offerings”), for total gross proceeds of up to

approximately $8,536,592. The terms of the Offerings remain as described in the Company’s press release dated June 9,

2025.

The Circular, the LIFE Offering Document, and the amended and restated Notice of Rights Offering on Form 45-106F14 –

Rights Offering Notice for Reporting Issuers (the “Notice”), will be filed on SEDAR+ under Atico’s profile at www.sedarplus.ca,

and the LIFE Offering Document will be available, for persons outside of the United States, on the Company’s website at

www.aticomining.com. Prospective investors should read these documents before making an investment decision.

This news release shall not constitute an offer to sell or the solicitation of an offer to buy nor shall there be any sale of the

securities in any jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under

the securities laws of any such jurisdiction. This news release shall not constitute an offer to sell or the solicitation of an offer

to buy any securities in the United States. The securities being offered have not been, nor will they be, registered under the

United States Securities Act of 1933, as amended, or under any state securities laws in the United States, and such

securities may not be offered or sold within the United States absent registration under U.S. federal and state securities laws

or an applicable exemption from such U.S. registration requirements.

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 generates 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 | OTCQX: ATCMF

Investor Relations

Igor Dutina

Tel: +1.604.729.5765

Neither the TSXV nor its Regulation Services Provider (as that term is defined in the policies of the TSXV) accepts

responsibility for the adequacy or accuracy of this release.

Cautionary Note Regarding Forward Looking Statements

This news release contains certain forward-looking information and forward-looking statements, as defined in applicable

securities laws (collectively referred to herein as “forward-looking statements”). These statements relate to future events or the

Company’s future performance. All statements other than statements of historical fact are forward-looking statements. Often,

but not always, forward-looking statements can be identified by the use of words such as “plans”, “expects”, “anticipates”,

“believes”, “estimates”, “expects”, “confirm” and similar expressions, or the negatives of such words and phrases, or state that

certain actions, events or results “may”, “could”, “would”, “should”, “might”, or “will” be taken, occur or be achieved. Forward-

looking statements involve known and unknown risks, uncertainties and other factors that may cause actual results to differ

materially from those anticipated in such forward-looking statements. The forward-looking statements in this news release

speak only as of the date hereof or as of the date specified in such statement. Specifically, this news release includes, but is

not limited to, forward-looking statements regarding our expectations regarding the proceeds of the Offerings.

Inherent in forward-looking statements are risks, uncertainties and other factors beyond Atico’s ability to predict or control.

These risks, uncertainties and other factors include, but are not limited to, risks associated with the Company’s outstanding

debt, including amounts due and payable to each of Trafigura and Dundee Corporation (“Dundee”) on or before June 30, 2025

and December 30, 2025, respectively, or the ability to complete the transactions contemplated by the Term Sheet, or the

ability to successfully negotiate to amend or extend the terms of the convertible debenture with Dundee; the availability and

cost of funds; uncertainties relating to the closing of the Offerings, including delays in obtaining or failure to obtain required

approvals to complete the Offerings; discretion in the Company’s use of available funds from the Offerings; the uncertainty

associated with estimating costs to completion of the Offerings; risks relating to negative operating cash flows of the

Company; dilution of the shareholdings of shareholders who do not exercise all of their rights under the Rights Offering;

irrevocability of the exercise of rights by a shareholder; the possibility that the subscription price is not indicative of the

Company’s value; if a shareholder fails to follow the subscription procedure and abide by the subscription deadline their

subscription may be rejected; mining operations; market fluctuations in commodity prices; title risks and surface rights and

access; changes in legislation; political instability; government or regulatory approvals; non-compliance with laws and

regulations and compliance costs; environmental compliance; climate change; uninsured and uninsurable risks; water

disposal, tailings and reclamation obligations; financing risks; risks associated with outstanding debt; global economic

conditions; availability and costs of supplies; community relations; mineral reserve and mineral resource estimates; future

production rates; labour relations; currency fluctuations; the Company may engage in hedging activities; infrastructure;

exploration and development capital expenditures; social media and reputation; negative publicity; human rights; business

objectives; concentrate sales risks; shortage of personnel; health and safety; pandemics, epidemics or infectious disease

outbreak; physical security; conflicts of interest; claims and legal proceedings; information systems and cyber security;

internal controls; violation of anti-bribery or corruption laws; competition; tax considerations; compliance with listing standards;

enforcement of civil liabilities; financing requirement risks; market price volatility of Common Shares; and other risks and

uncertainties related to the Company’s business and the Offerings, including those described in the Company’s public

disclosure documents on SEDAR+ at www.sedarplus.ca. Readers are cautioned that the foregoing list of factors is not

exhaustive of the factors that may affect the forward-looking statements. Actual results and developments are likely to differ

and may differ materially from those expressed or implied by the forward-looking statements contained in this news release.

Such statements are based on a number of assumptions which may prove to be incorrect, including but not limited to, (1) the

completion of the Loan Refinancing; (2) the completion of the LIFE Offering; (3) the completion of the Rights Offering under

certain thresholds, including the estimated costs thereof; (4) the Company’s ability to generate positive cash flows from

ongoing operations at the El Roble Mine, including the ability to sell its mineral concentrates in inventory; (5) that all required

third party contractual, regulatory and governmental approvals will be obtained for the development, construction and

production of the Company’s properties, (6) there being no significant disruptions affecting operations, whether due to labor

disruptions, supply disruptions, power disruptions, damage to equipment, non-renewal of title to the Company’s claims or

otherwise, (7) permitting, development, expansion and power supply proceeding on a basis consistent with the Company’s

current expectations, (8) currency exchange rates being approximately consistent with current levels, (9) certain price

assumptions for copper, gold, zinc and silver, (10) prices for and availability of fuel oil, electricity, parts and equipment and

other key supplies remaining consistent with current levels, (11) production forecasts meeting expectations, (12) the accuracy

of the Company’s current mineral resource and reserve estimates, (13) labor and materials costs increasing on a basis

consistent with the Company’s current expectations, (14) matters related to the ongoing dispute with the National Mining

Agency in Colombia, and (15) general marketing, political, business and economic conditions.

Forward-looking statements may be affected by known and unknown risks, uncertainties and other factors including without

limitation, those referred to in the Offering Documents that may cause Atico’s actual results, performance or achievements to

be materially different from any of its future results, performance or achievements expressed or implied by forward-looking

statements. All forward-looking statements herein are qualified by this cautionary statement. Accordingly, readers should not

place undue reliance on forward-looking statements. The Company undertakes no obligation to update publicly or otherwise

any forward-looking statements, whether as a result of new information or future events or otherwise, except as may be

required by law. If Atico does update one or more forward-looking statements, no inference should be drawn that it will make

additional updates with respect to those or other forward-looking statements, unless required by law.