Mr. Michael Bennett reports

ALTAMIRA GOLD RECEIVES $6.3 MILLION THROUGH EXERCISE OF WARRANTS

Altamira Gold Corp. has raised $6,284,820 since Sept. 1, 2025, as a result of the exercise of 31,292,400 share purchase warrants and 131,700 broker warrants. The warrants each had an exercise price of 20 cents and were issued on Nov. 6, 2023, in connection with the company's non-brokered private placement. The warrants expired on Nov. 6, 2025.

Michael Bennett, president and chief executive officer, commented: "We are pleased to have the continued support of our shareholders as we advance drilling across our Cajueiro porphyry gold district in Brazil. The exercise of these warrants reflects the confidence of our shareholders in our expanding Cajueiro porphyry gold district. These funds will allow us to continue with our extensive drill program at Maria Bonita and the central resource area with the goal of increasing our current mineral resources in those zones and to drill test several of the new target areas identified over the last 18 months. We look forward to advancing our exploration efforts and realizing the potential of the Cajueiro district."

Qualified person

Guillermo Hughes, FAIG, MAusIMM, a consultant to the company as well as a qualified person as defined by National Instrument 43-101, supervised and approved the preparation of the technical information in this news release.

About Altamira Gold Corp.

The company is focused on the exploration and development of gold 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 six million ounces of placer gold. The company's advanced Cajueiro project contains two gold deposits. The central area comprises National Instrument 43-101 resources of 5.66 million tonnes at 1.02 grams per tonne gold for a total of 185,000 ounces in the indicated resource category and 12.66 million tonnes at 1.26 grams per tonne gold for a total of 515,000 ounces in the inferred resource category. In addition, the Maria Bonita gold deposit comprises additional open-pit indicated resources of 24.19 million tonnes at 0.46 gram per tonne for a total of 357,800 ounces and inferred resources of 25.64 million tonnes at 0.44 gram per tonne for a total of 362,400 ounces.

Continuing 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 record of significant discoveries, the company is well positioned to unlock further value across its extensive land package.

We seek Safe Harbor.