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ALTA.V ·

Altamira Gold Cross-Trading Commences on the United States OTCQB Market

Corporate Updates

Altamira Gold Cross-Trading Commences on

the United States OTCQB Market

Vancouver, British Columbia--(Newsfile Corp. - August 6, 2025) -

Altamira Gold Corp. (TSXV: ALTA)

(OTCQB: EQTRF) (FSE: T6UP)

("

Altamira

" or the "

Company

"), is pleased to announce that its

common shares will commence trading today on the OTCQB® ("OTCQB Market") in New York, United

States of America, under the symbol EQTRF. The Company's common shares will continue to trade on

the TSX Venture Exchange under the symbol ALTA.

The Company expects that the listing on the OTCQB will provide greater visibility and convenience of

trading for US investors, resulting in enhanced liquidity and greater reach.

"Listing on the OTCQB is a key step in making Altamira more visible and accessible to U.S.

investors,"

said Michael Bennett, President and CEO. "

As we continue advancing our Cajueiro Gold

District in Brazil, this listing gives us a platform to reach a broader investor base and improve liquidity,

which are both important as we work to unlock the value of our porphyry gold targets within the district."

The OTCQB Venture Market is for early stage and developing U.S. and international companies.

Companies are current in their reporting and undergo an annual verification and management

certification process. Investors can find real-time quotes and market information for the Company on

www.otcmarkets.com

.

Grant of Stock Options

Altamira also announces that it has granted 7,375,000 stock options to directors, officers, employees,

and consultants of the Company at an exercise price of C$0.10 per common share. The stock options

are exercisable for five years and are subject to vesting over 12 months. The options are subject to the

Company's Stock Option Plan.

About Altamira Gold Corp.

The Company is focused on the exploration and development of gold and copper projects within western

central Brazil, strategically advancing five projects spanning over 100,000 hectares within the prolific

Juruena Gold Belt, an area that has historically yielded over 6 million ounces of placer gold*. The

Company's advanced Cajueiro project contains two gold deposits. The central area comprises NI 43-

101 resources of 5.66Mt @ 1.02 g/t gold for a total of 185,000 oz in the Indicated Resource category

and 12.66Mt @ 1.26 g/t gold for a total of 515,000oz in the Inferred Resource category. In addition, the

Maria Bonita gold deposit comprises additional open-pit Indicated Resources of 24.19Mt @ 0.46g/t for

a total of 357,800oz, and Inferred Resources of 25.64Mt @ 0.44g/t for a total of 362,400oz.

Ongoing exploration and fieldwork at Cajueiro indicate the presence of multiple porphyry gold systems,

reinforcing its potential for district-scale development. These hard-rock gold sources align with historical

alluvial gold production, highlighting the region's exceptional gold endowment and potential scalability.

With two independently established mineral resources, a highly prospective geological setting and a

track record of significant discoveries, the Company is well-positioned to unlock further value across its

extensive land package.

*

Juliani, C. et al; Gold in Paleoproterozoic (2.1 to 1.77 Ga) Continental Magmatic Arcs at the Tapajós and Juruena Mineral Provinces (Amazonian

Craton,Brazil): A New Frontier for the Exploration of Epithermal-Porphyry and Related Deposits. Minerals 2021, 11, 714.

https://doi.org/10.3390/min11070714

On Behalf of the Board of Directors,

ALTAMIRA GOLD CORP.

"Michael Bennett"

Michael Bennett

President & CEO

Tel: 604.676.5660

[email protected]

www.altamiragold.com

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

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

release.

The securities described herein have not been registered under the U.S. Securities Act or any state

securities laws, and may not be offered or sold in the United States absent registration or an

applicable exemption from registration requirements under the U.S. Securities Act and any applicable

state securities laws.

Forward-Looking Statements

Certain information contained herein constitutes "forward-looking information" under Canadian

securities legislation. Forward-Looking information includes, but is not limited to, statements with

respect to the extension of the Warrants. Generally, forward-looking information can be identified by

the use of forward-looking terminology such as "will", "intends" or variations of such words and

phrases or statements that certain actions, events or results "will" occur. Forward-Looking statements

are based on the opinions and estimates of management as of the date such statements are made

and they are subject to known and unknown risks, uncertainties and other factors that may cause the

actual results to be materially different from those expressed or implied by such forward-looking

statements or forward-looking information, including the receipt of all necessary regulatory approvals.

Although management of the Company has attempted to identify important factors that could cause

actual results to differ materially from those contained in forward-looking statements or forward-looking

information, there may be other factors that cause results not to be as anticipated, estimated or

intended. There can be no assurance that such statements will prove to be accurate, as actual results

and future events could differ materially from those anticipated in such statements. Accordingly,

readers should not place undue reliance on forward-looking statements and forward-looking

information. The Company will not update any forward-looking statements or forward-looking

information that is incorporated by reference herein, except as required by applicable securities laws.

Notes

Gold analysis has been conducted by SGS method FAA505 (fire assay of 50g charge), with higher grade samples checked by FAA525. Analytical

quality is monitored by certified references and blanks. Until dispatch, samples are stored under the supervision the Company's exploration office.

The samples are couriered to the assay laboratory using a commercial contractor. Pulps are returned to the Company and archived. Drill holes

results are quoted as down-hole length weighted intersections.

To view the source version of this press release, please visit

https://www.newsfilecorp.com/release/261455