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MLO.V ·

Metalero Closes Oversubscribed Private Placement

Financings

Metalero Mining Corp.

250 Southridge, Suite 300

Edmonton, AB CANADA T6H 4M9

METALERO CLOSES OVERSUBSCRIBED PRIVATE PLACEMENT

Edmonton, AB – August 25, 2025 – Metalero Mining Corp. (the “Company” or “Metalero”) (TSXV: MLO;

OTCPK: CRTTF) is pleased to announce the completion of its previously disclosed non- brokered private

placement (the “ Offering”), raising gross proceeds of $ 919,501 through the issuance of 7,662,509 units

(each, a “Unit”) at a price of $0.12 per Unit. Each Unit consists of one common share of the Company and

one share purchase warrant (a “ Warrant”). Each Warrant is exercisable for a period of 2 years from the

date of issuance, and entitles the holder to purchase one additional common share at an exercise price of

$0.25 per share for the first year, and at an exercise of $0.35 per share for the second year.

The proceeds of the Offering will be utilized to advance exploration at Metalero’s flagship Benson Project

in central British Columbia, including follow -up work based on recently completed soil sampling and

ground geophysical surveys. Funds will also be allocated to general working capital.

In connection with the sale of the units sold, Metalero paid a total of $25,862 in cash and issued 215,520

finder’s warrants, on the same terms as the Warrants, to eligible finder s for certain of the Units sold. All

securities issued pursuant to the Offering are subject to a statutory hold period of four months and one

day, in accordance with applicable securities laws.

Certain insiders participated in the Offering, acquiring a total of 2,019,583 Units. Such subscriptions by

insiders of Metalero for a portion of the Offering constitute a related party transaction for the purposes

of Multilateral Instrument 61-101 Protection of Minority Security Holders in Special Transactions (“MI 61-

101”), but the Company is relying on exemptions from the formal valuation and minority shareholder

approval requirements provided under sections 5.5(a) and 5.7(1)(a) of MI 61-101 on the basis that the fair

market value of the subscription, insofar as it involves the insiders of the Company, does not exceed 25%

of the market capitalization of the Issuer, as determined in accordance with MI 61 -101. The Offering did

not result in the creation of a new control person.

For further information with regards to the Offering, please refer to the Company’s news release s dated

July 18 and 30, 2025, available for viewing on Metalero’s profile on SEDAR+ (www.sedarplus.ca).

Benson Project Background

The Benson Project lies close to infrastructure and is traversed by Highway 26 and an extensive network

of logging roads allowing for ready access to all parts of the Property and capital-efficient exploration. The

large land package covers 5 different target areas identified by recent Artificial-Intelligence (“AI”) work by

Geoscience BC (Mitchinson et al., Geoscience BC Report 2022 -07). This AI study incorporated a wide

variety of historical datasets including geophysics, geology, sampling information, and drilling data (where

present) to identify high potential (“porphyry -like”) anomalies with similarities to known porphyry

deposits elsewhere in the belt. Limited historical exploration at Benson has identified numerous gold and

copper surface geochemical anomalies while modest (historical) drill programs have intersected skarn and

epithermal gold and silver mineralization, which are both intrusive -related styles of mineralization and

are commonly associated with porphyry systems.

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About Metalero Mining Corp.

Metalero Mining Corp. is a Canadian -based junior exploration company focused on copper and gold

projects in North America. Its 166 square kilometre, road-accessible Benson Project serves as Metalero’s

flagship and is host to several prospects containing gold and copper within porphyry -related mineralized

systems. MLO also has drill-ready properties in Nevada available for sale or option.

On behalf of the Board of Directors

“Rob L’Heureux”

Rob L’Heureux,

Chief Executive Officer and President

Email: [email protected]

Telephone: +1.780.437.6624

www.metalsgroup.com

Metalero is part of the Metals Group of Companies, managed by exploration

professionals who stand for technical excellence, robust project selection

and strong corporate governance, with a proven ability to identify and

capitalize on investment opportunities and deliver shareholder returns.

NEITHER 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.

Certain statements in this release constitute “forward-looking statements” or “forward-looking information” within

the meaning of applicable securities laws including, without limitation, the timing, nature, scope and details

regarding the Company ’s exploration plans and results. Such statements and information involve known and

unknown risks, uncertainties and other factors that may cause the actual results, performance or achievements of

the Company, its projects, or industry results, to be materi ally different from any future results, performance or

achievements expressed or implied by such forward- looking st atements or information. Such statements can be

identified by the use of words such as “ may”, “would”, “could”, “will”, “intend”, “expect”, “believe”, “plan”,

“anticipate”, “estimate”, “scheduled”, “forecast”, “predict” and other similar terminology, or state that certain

actions, events or results “may”, “could”, “would”, “might” or “will” be taken, occur or be achieved. These statements

reflect the company’ s current expectations regarding future events, performance and results and speak only as of

the date of this release.

Forward-looking statements in this press release but are not limited to, statements with respect to the expectations

of management regarding the Offering, the expectations of management regarding the use of proceeds of the

Offering, closing conditions for the Offering, and receipt of acceptance from the TSXV in respect of the Offering. These

forward-looking statements are subject to a variety of risks and uncertainties and other factors that could cause

actual events or results to differ materially from those projected in the forward-looking information. Risks that could

change or prevent these statements fro m coming to fruition include the TSXV ’s acceptance of the Offering; the

proceeds of the Offering may not be used as stated in this news release; Metalero may be unable to satisfy all of the

conditions to the closing required by the TSXV. Metalero does not undertake to update any forward- looking

statements or information except as may be required by applicable securities laws.

Not for distribution to United States newswire services or for dissemination in the United States.