Altamira Gold Corp.

Name: Altamira Gold Corp.
Address: 1500/409 Granville Street, Vancouver, BC, V6C1T2, CA
Telephone: +16044408474
Price range: $$

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Altamira Gold Corp.

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

09/21/2026

Maria Bonita Resource Expands Significantly

Altamira Gold has announced an independently prepared and assessed updated Mineral Resource Estimate for the Maria Bonita porphyry gold deposit at the Cajueiro Project in Brazil.

Key highlights:
🔹 1.31Moz of contained gold across Indicated and Inferred Resources
🔹 25Mt @ 0.50 g/t Au Indicated, containing 403,877 oz
🔹 70Mt @ 0.41 g/t Au Inferred, containing 908,477 oz
🔹 150% increase in Inferred contained ounces and 12% increase in Indicated contained ounces versus the maiden MRE
🔹 Higher-grade sector now contains 512koz @ 0.78 g/t Au at a 0.5 g/t Au cut-off
🔹 Low calculated waste-to-mineralized-material ratio of approximately 0.4:1 within the optimized open-pit shell
🔹 Mineralization remains open to the west, south and at depth, with drilling ongoing

The continued growth at Maria Bonita, together with the existing resource at Cajueiro Central, demonstrates the expanding resource base across the Cajueiro District.

With the porphyry system continuing westward and drilling underway on the newly accessible extension, Maria Bonita remains an important growth opportunity for Altamira.

News release: https://altamiragold.com/altamira-gold-announces-significant-increase-in-mineral-resources-at-the-maria-bonita-porphyry-gold-deposit-cajueiro-district-brazil/

08/25/2026

Altamira has confirmed a new mineralized porphyry body immediately west of the Maria Bonita Gold Porphyry Deposit, with two recent drill holes returning wide, consistent intervals of gold mineralization.

🔹 MBA-043: 231.5m @ 0.4 g/t gold
🔹 MBA-042: 200.4m @ 0.3 g/t gold, within a broader 282m of mineralized intervals
🔹 The new body remains open to the west and at depth
🔹 Recent land access provides the opportunity to continue drilling westward and evaluate its full extent

As President & CEO Michael John Bennett noted, “the Maria Bonita system extends further west than previously recognized,” with the new mineralized body remaining open for further exploration.

The discovery further supports our view that Cajueiro is a growing porphyry district, with three porphyry bodies now identified within the central 5km of our 15km east-west corridor.

Read the full news release: https://altamiragold.com/altamira-gold-discovers-new-mineralized-porphyry-body-at-maria-bonita-west-cajueiro-gold-district-brazil/

08/19/2026

A new area of the Cajueiro Gold District is now open for exploration.

Altamira Gold has secured surface access to approximately 58 km² of highly prospective ground west of the Maria Bonita porphyry gold deposit, including the high-priority Novo Sonho target.

This newly accessible area opens up several exciting opportunities:

🔹 Exploration and drill testing of the western extension of Maria Bonita
🔹 The first opportunity to systematically explore and drill test the Novo Sonho gold-in-soil anomaly
🔹 An additional 5 km of prospective ground with unexplained historical alluvial gold occurrences

We are excited to begin unlocking the potential of this area and advancing the next phase of exploration at Cajueiro.

Read the full news release: https://altamiragold.com/altamira-gold-secures-land-access-to-high-priority-gold-targets-unlocking-a-new-phase-of-exploration-in-the-west-of-the-cajueiro-gold-district-brazil/

07/23/2026

Altamira continues to expand the footprint of the Maria Bonita gold discovery.

Today's drill results confirm that the mineralized porphyry system extends beyond the current resource, with both new holes intersecting broad zones of gold mineralization outside the existing resource boundary.

Highlights include:
🔹 117m @ 0.4 g/t gold from surface (MBA039)
🔹 74m @ 0.3 g/t gold (MBA038)

The most important point is that gold mineralization has now been confirmed not only within the porphyry intrusive but also in the surrounding volcanic wall rocks, significantly increasing the exploration potential and tonnage upside at Maria Bonita.

These latest results build on previous step-out drilling, with holes MBA036 through MBA039 all intersecting broad mineralized zones beyond the current resource, demonstrating that the system continues to grow to the west, north and at depth.

Drilling remains ongoing, with hole MBA044 currently in progress.

Read today's full news release here: https://altamiragold.com/altamira-gold-expands-mineralized-porphyry-system-at-maria-bonita-gold-deposit-cajueiro-district-brazil/

05/20/2026

Altamira Gold continues to expand the footprint of the Maria Bonita mineral resource at the Cajueiro Project in Brazil.

Today’s results from step-out drill hole MBA037 returned:
🔹 130m @ 0.5 g/t gold
🔹 Including 40m @ 0.8 g/t gold

Importantly, the hole was drilled 110 metres outside the current NI 43-101 resource boundary and approximately 300 metres north of previously reported hole MBA036.

These latest results confirm that the Maria Bonita porphyry-hosted gold system remains open to the north, west and at depth, highlighting significant potential for future resource growth.

🔹 First occurrence of quartz veining and gold mineralization identified within tuffaceous wall rocks
🔹 Second wide mineralized intercept reported outside the current resource model
🔹 Additional drilling planned to test continuity and scale of the newly identified mineralized phase

--CEO Michael John Bennett commented:
“The latest two drill holes completed at Maria Bonita have exceeded our expectations and suggest the porphyry-hosted gold deposit remains open to the west and north.”

Read the full release here: https://altamiragold.com/altamira-gold-drills-130m-0-5g-t-gold-in-step-out-hole-110m-north-of-the-maria-bonita-mineral-resource-within-the-cajueiro-district-brazil/

05/12/2026

Altamira Gold expands the footprint at Maria Bonita

Today’s drill results confirm that the Maria Bonita porphyry system extends further west than previously known, highlighting additional upside potential within the Cajueiro District in Brazil.

Key results from scout hole MBA036 include:
🔹 70.6m @ 0.5 g/t gold from 277m to end of hole
🔹 Additional 19m @ 0.5 g/t gold from 239m
🔹 Strong quartz veining and stockwork mineralization consistent with the core of the Maria Bonita system
🔹 Mineralization remains open to the west

Importantly, the intercept sits approximately 100m below and west of the current Maria Bonita mineral resource, indicating preservation of an additional early-stage mineralized porphyry body outside the existing resource envelope.

CEO Mike Bennett commented that these results demonstrate continuity of the mineralized system and support further expansion drilling.

With multiple porphyry targets across the Cajueiro District, Altamira continues to demonstrate the scale potential of this emerging gold system.

Full release here: https://altamiragold.com/altamira-gold-intersects-additional-mineralized-porphyry-outside-the-maria-bonita-mineral-resource-extending-the-exploration-footprint-within-the-cajueiro-district-brazil/

04/07/2026

Altamira Gold Strengthens Board of Directors with the Appointment of Renowned Macro Investor Tavi Costa

CEO Michael Bennett commented; “We are extremely pleased to welcome Tavi to the Board of Directors. Tavi’s wide experience in mining finance together with his deep knowledge of the capital markets, and his wide network of industry contacts and investors, will be invaluable to the Company as we continue to expand and advance the Cajueiro gold district in Brazil.”

Otavio (Tavi) Costa, newly appointed Director, added; “I’m pleased to be joining the board of Altamira Gold at a compelling stage for the business. The 43-101 Resource at Cajueiro1 anchors the current value, with significant upside across the broader Alta Floresta Gold Belt land package. Positioned in Brazil, the Company stands to benefit from the structural economic shift underway across Latin America. My goal is to be a value-add investor and director – helping the business across all fronts, from key capital decisions to unlocking the full potential of its existing resource base and its significant exploration upside.”

https://altamiragold.com/altamira-gold-strengthens-board-of-directors-with-the-appointment-of-renowned-macro-investor-tavi-costa/

03/18/2026

Altamira Gold reports encouraging new drill results from its Cajueiro District in Brazil, highlighting both a new discovery and resource expansion potential.

🔷 Initial scout drilling at the Guillermo target intersected 7m @ 4.2 g/t gold, including 0.9m @ 18.1 g/t gold
🔷 Mineralization in GLO-01 correlates with earlier trench results, supporting continuity
🔷 At Maria Bonita, drilling intersected 75m @ 0.3 g/t gold and 33.5m @ 0.4 g/t gold below the current pit shell
🔷 Results confirm mineralization remains open at depth, with strong potential for resource growth
🔷 Renowned porphyry expert Dr. Richard Sillitoe currently on site reviewing district-scale potential

These results reinforce the upside across the Cajueiro District, with both near-term resource expansion and a new discovery emerging.

https://altamiragold.com/altamira-gold-intersects-high-grade-gold-mineralization-in-the-first-drill-hole-at-the-guillermo-target-and-extends-maria-bonita-mineralization-at-depth-cajueiro-district-brazil/

01/28/2026

Altamira Gold announced encouraging new drill results from the Central Resource Area at the Cajueiro Project in Brazil

🔹 The first five drillholes intersected high-grade gold, including up to 19 g/t gold at the Baldo block, confirming mineralization continues at depth.

🔹 Drilling also identified new parallel mineralized structures and shows potential to extend the resource beyond current NI 43-101 limits.

🔹 Scout drilling is underway at additional regional targets, with early gold intersections supporting the broader porphyry gold district potential.

More results are expected as drilling continues through 2026.

Full release: https://altamiragold.com/altamira-gold-intersects-high-grade-gold-mineralization-within-the-cajueiro-mineral-resource-and-commences-drilling-at-the-untested-mombaque-and-guillermo-porphyry-targets-brazil/

12/03/2025

"We are very pleased to have Dick join us at a key stage for the Company. We have multiple gold prospects in a demonstrated porphyry district at Cajueiro.

His knowledge of mineralized porphyry and epithermal systems is unmatched, and his perspective will help us refine our targeting and advance the porphyry potential we are seeing across our Cajueiro District.

With two rigs currently drilling on site, we will continue follow-up drilling of the new discoveries and move ahead with expansion drilling at the Maria Bonita and Central gold deposits.”
-- Michael John Bennett, President & CEO

https://altamiragold.com/altamira-gold-welcomes-leading-authority-on-porphyry-deposits-dr-richard-sillitoe-as-technical-advisor/

Address

1500/409 Granville Street
Vancouver, BC
V6C1T2

Telephone

+16044408474

Website

http://www.altamiragold.com/

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