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ATY.V ·

Atico Mining Announces Closing of Rights Offering

Financings

Atico Mining Announces Closing of Rights Offering

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

UNITED STATES

VANCOUVER, British Columbia, July 22, 2025 -- Atico Mining Corporation (the “ Company” or “Atico”) (TSX.V: ATY | OTC:

ATCMF) is pleased to announce the closing of its rights offering (the “ Rights Offering ”), previously disclosed in the

Company’s press releases dated June 9, 2025 and June 13, 2025. Shareholders of Atico exercised rights (the “ Rights”) to

acquire 29,887,022 units of the Company (the “ Rights Units”), at the subscription price of $0.11 per Rights Unit, for gross

proceeds of $3,287,572.42.

Each Rights Unit consisted of one common share of the Company (a “Common Share ”) and one transferable Common Share

purchase warrant (a “Rights Warrant ”), with each Rights Warrant exercisable into one Common Share (a “ Rights Warrant

Share ”) at a price of $0.18 per Rights Warrant Share for a period of two years from the issue date.

11,219,319 Rights Units were issued pursuant to the basic subscription privilege, and 18,667,703 Rights Units were issued

pursuant to the additional subscription privilege. Approximately 41% of the total Rights Units were issued to persons who were

insiders before closing of the Rights Offering. The remaining Rights expired unexercised on July 21, 2025.

Following closing of the Rights Offering, the Company has a total of 151,173,207 Common Shares outstanding.

The Company expects that its offering under the listed issuer financing exemption (the “ LIFE Offering”), previously disclosed

in its press releases dated June 9, 2025 and June 13, 2025, will close on or about July 28, 2025.

Atico intends to use the net proceeds from the Rights Offering and the LIFE Offering (together, the “ Offerings”) to pay for

development of the Company’s La Plata project in Ecuador (the “ La Plata Project ”), additional drilling at the Company’s El

Roble mine in Colombia (the “El Roble Mine ”), and for general corporate purposes.

Additional Information

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 TSX Venture Exchange (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 closing of the LIFE Offering; and the use

of proceeds from 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 PTE. Ltd. and Dundee Corporation (“Dundee”) on or before July

25, 2025 and December 30, 2025, respectively, 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 LIFE Offering,

including delays in obtaining or failure to obtain required approvals to complete the LIFE Offering; discretion in the Company’s

use of available funds from the Offerings; the uncertainty associated with estimating costs to completion of the LIFE Offering;

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 LIFE Offering; (2) 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; (3) that all

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

production of the Company’s properties, (4) 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, (5) permitting, development, expansion and power supply proceeding on a basis consistent with the Company’s

current expectations, (6) currency exchange rates being approximately consistent with current levels, (7) certain price

assumptions for copper, gold, zinc and silver, (8) prices for and availability of fuel oil, electricity, parts and equipment and

other key supplies remaining consistent with current levels, (9) production forecasts meeting expectations, (10) the accuracy

of the Company’s current mineral resource and reserve estimates, (11) labor and materials costs increasing on a basis

consistent with the Company’s current expectations, (12) matters related to the ongoing dispute with the National Mining

Agency in Colombia, and (13) 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.