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Altamira Gold Defines New, High-Ranking Gold Target (Guillermo) with Surface Grab Sample of 39g/t Gold, within the Cajueiro District

Drill Results Exploration Programs Sampling & Geoscience Results

Altamira Gold Defines New, High-Ranking

Gold Target (Guillermo) with Surface Grab

Sample of 39g/t Gold, within the Cajueiro

District

Vancouver, British Columbia--(Newsfile Corp. - December 11, 2024) -

Altamira Gold Corp. (TSXV:

ALTA) (FSE: T6UP) (OTC Pink: EQTRF)

("

Altamira

" or the "

Company

"), is pleased to announce the

discovery of a new gold target, identified as part of the ongoing exploration program within the Cajueiro

district which is targeting porphyry-related gold mineralization.

Highlights:

Geological mapping, soil sampling and trenching at the Guillermo target, 2.5 km to the north-east

of the Central Resource area within the Cajueiro mineralized district has identified a new high-

ranking potential porphyry target. The gold-in-soil anomaly is open to the east and is surrounded on

all sides by historic placer gold workings.

Rock grab sampling within the gold-in-soil anomaly of altered intrusive rocks, containing

hydrothermal quartz veining and oxidized pyrite, returned 39g/t gold. A second grab sample from

the same locality returned 1.1 g/t gold.

The identification of another gold target brings the number of new gold targets within a defined belt

east of the Maria Bonita porphyry to three (Mombaque, Espirro and Guillermo). Thus far, only the

Maria Bonita porphyry target has been drilled with initial drill results up to

146m @ 1g/t gold.

CEO Mike Bennett commented; "Our progressive surface program in the Cajueiro district continues to

identify exciting new gold targets through a combination of mapping, soil and rock sampling, plus

drone magnetics. The Guillermo target is located 2.5 km to the north-east of the Cajueiro Central

Resource area and was identified by a partially completed soil grid. Anomalous soil samples were

followed up to reveal gold mineralization in rock grab samples on surface and subsequent trenching

has exposed a quartz vein stockwork within altered felsic to intermediate volcanics and felsic

porphyritic dykes. Guillermo is the third new gold target discovered in the last three months following

the drilling of the Maria Bonita gold porphyry discovery and continues to suggest the presence of a

significant district-scale potential in the Cajueiro area."

CAJUEIRO PROJECT

The Cajueiro project is located approximately 75km NW of the town of Alta Floresta in the state of Mato

Grosso (Figure 1) in central western Brazil and is easily accessible by road and has grid power and a

local water supply. Cajueiro is the most advanced of three key projects that Altamira controls in the

region, the other two being Apiacas and Santa Helena (Figure1).

Figure 1: Location of the Cajueiro, Apiacas and Santa Helena projects.

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/4500/233318_1ced2015a4bd9a60_001full.jpg

The Cajueiro project has current 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 515,000 oz in the Inferred

Resource category.

Reconnaissance drilling at the Maria Bonita target, located 7km west of the Cajueiro Central Mineral

Resource, identified the first gold porphyry discovery at Cajueiro and returned gold values up to

146m @

1g/t gold

(see press release dated May 22, 2024).

Guillermo Target

The Guillermo target is located 2.5km north-east of the Cajueiro Mineral Resource and 8.7km east of the

Maria Bonita gold porphyry (Figure 2). This area is also located 1.2km east of the Morro Verde target. A

single prior scout drillhole at the Morro Verde target (CAJ-098 drilled in 2017) was re-examined as part

of the ongoing exploration programme and found to contain an intrusive breccia body in the lowermost

110m of the hole, indicating proximity to a centre of hydrothermal activity.

Figure 2: Cajueiro project area showing the location of the existing Cajueiro Mineral Resource, the Maria

Bonita discovery, and the Mombaque, Espirro and Guillermo targets.

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/4500/233318_1ced2015a4bd9a60_002full.jpg

Figure 2 shows historic placer workings surrounding the Guillermo target, with currently no known hard-

rock source. Similar historic placer gold workings are related to the Mombaque and Espirro targets

located between the Cajueiro and Maria Bonita drilled areas. At Guillermo, the alluvial workings form an

almost complete circle around the prospect, implying that gold is shedding in various directions into the

local drainages.

The Guillermo target was identified as the highest priority geophysical target by consultant geophysicist

Guillermo Rodriguez, using proprietary aeromagnetics and radiometrics acquired by the Company.

These anomalies are currently being re-flown using a Company owned and operated drone

magnetometer to further define the anomalies and provide additional input to target ranking for ground

follow-up.

Within the recently opened trenches (Figure 3), the extension of observed north-east structural trends

correlates with the upper limit of alluvial workings, approximately 1.2km north of the trench locations.

An incomplete soil grid identifies the western part of the Guillermo target (Figure 3). Soil values up to

845ppb gold were recorded in the original survey, conducted with a sample spacing of 100 by 25m.

Anomalies were detected on four adjacent lines (300m east-west). The soil grid is currently being

extended to the east.

Figure 3: Cajueiro gold-in-soil grid sampling showing the location of the Guillermo target. Note also the

position of the Tavares North soil anomaly (undrilled) which may represent a faulted offset of the Baldo

sector of the Cajueiro resource.

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/4500/233318_1ced2015a4bd9a60_003full.jpg

Follow-up mapping and sampling of the Guillermo target identified significant areas of stockwork quartz

veining in volcanic and intrusive porphyritic rocks (see Figures 4 and 5). Results were returned on an

initial six surface grab samples. Noting that surface grab samples are not representative of bulk grade,

the results included one sample of 39g/t gold and another of 1.1g/t gold in sericitized and quartz veined

volcanics.

Figure 4: Stockwork veining in the eastern wall of the initial trench excavated at Guillermo target. Note

geological hammer for scale.

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/4500/233318_1ced2015a4bd9a60_004full.jpg

Figure 5: Grab rock samples hosting 39g/t Au from Guillermo target.

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/4500/233318_1ced2015a4bd9a60_005full.jpg

The Company is awaiting the results of sampling of the initial trenches over the Guillermo gold-in-soil

anomaly and is conducting drone magnetics to assist in identifying a near-term scout drill target.

The

combination of, an unexplained alluvial gold source, hydrothermally altered volcanics overprinted by

felsic porphyritic intrusives, an open-ended soil anomaly and high-grade gold in outcrop, plus stockwork

hydrothermal quartz veining in two new trenches comprise a potentially significant new target for drill

testing.

Qualified Person

Guillermo Hughes, FAIG and M AusIMM., a consultant to the Company as well as a Qualified Person as

defined by National Instrument 43-101, supervised 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 and copper projects within western

central Brazil. The Company holds 6 projects comprising approximately 190,000 hectares, within the

prolific Juruena gold belt which historically produced an estimated 7 to 10Moz of placer gold. The

Company's advanced Cajueiro project has 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.

On Behalf of the Board of Directors,

ALTAMIRA GOLD CORP.

"Michael Bennett"

Michael Bennett

President & CEO

Tel: 604.676.5660

Toll-Free:1-833-606-6271

[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.

*

NI 43-101 Technical Report, Cajueiro Project, Mineral Resource Estimate: Global Resource Engineering, Denver Colorado USA, October 10,

2019; Authors K. Gunesch, PE; H. Samari, QP-MMSA; T. Harvey, QP-MMSA

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

https://www.newsfilecorp.com/release/233318