Exploring today, defining tomorrow’s resources with Altamira.

Our Mission

Our mission is to responsibly explore and advance high-potential gold and copper projects in Brazil, leveraging innovative exploration techniques to unlock value for our stakeholders while maintaining a commitment to environmental and community sustainability.

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OUR PROJECTS

Exploring the Future of Gold and Copper in South America.

Altamira Gold is advancing six gold and copper projects across 115,000 hectares in Brazil’s Alta Floresta Belt.

Our flagship Cajueiro Project holds a 700,000+ oz NI 43-101 gold resource, with expansion potential. Santa Helenaoffers high-grade copper, while Apiacas is a key gold exploration target. Three additional projects support small-scale production for near-term value. With a proven team, strong infrastructure, and sustainable practices, Altamira Gold is unlocking Brazil’s next major gold and copper discoveries.

Apiacas

The largest former placer gold camp in the Alta Floresta Belt with artisanal and mechanised dredge production of over 1Moz. Our drilling to date has identified wide zones of gold mineralization in bedrock, hosted in hydrothermally altered shear zones with demonstrated potential for bulk-tonnage targets.

The Heart of Altamira Gold’s Portfolio

Cajueiro

Our two advanced projects at Cajueiro Central and Maria Bonita are the core of our portfolio. Both remain open at depth and laterally. We have defined an additional 8 drill-ready targets in the Cajueiro district within an interpreted intrusive-related context, providing significant upside.

Santa Helena

Located 60km south west of the 2019 discovery of porphyry copper mineralization at the Jaca Prospect (Anglo American – now operated by Fides Mining), Our Santa Helena project hosts three drill-ready copper-in-soil anomalies defined by Altamira Gold. Previously tested and spatially associated gold mineralization includes shear hosted structures with locally high grades, exploited by limited hard-rock artisanal workings (garimpos).

INVESTOR HIGHLIGHTS

Advancing gold projects in one of Brazil’s richest mining belts.

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KEY HIGHLIGHT

700,000+

Ounces of NI 43-101 compliant gold resources at Cajueiro.

KEY HIGHLIGHT

115,000+

Hectares of highly prospective gold and copper-rich land holdings.

KEY HIGHLIGHT

90%+

Gold recovery rates from metallurgical testing.

Environmental, Social and Governance

Our commitment to sustainability and ethical impact.

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Responsible Mining

We minimize environmental impact through sustainable exploration, ethical sourcing, and responsible land use.

Community Engagement

Investing in local communities through job creation, training, and long-term economic growth initiatives.

Environmental

Rehabilitating mined areas with reforestation programs and protecting biodiversity in exploration zones.

Supporting Garimpeiros

Helping artisanal miners transition to formal mining, promoting safety, sustainability, and fair practices.

Recent news and press.

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Uncategorized • 5 May 2025

Altamira Gold Announces Maiden Mineral Resource Estimate for Maria Bonita Porphyry Gold Project, Cajueiro District, Brazil

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2025 • 14 Apr 2025

Altamira Gold Expands the Cajueiro District Potential with New Discoveries of Porphyry-Related Gold Mineralization

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2025 • 5 Feb 2025

Altamira Gold Trenches 17m @ 1.5g/t Gold 200 metres South of the Cajueiro Central Mineral Resource Block on Extension of Central Resource Mineralization

Read Article

Stay up to date with our explorations and discoveries.

Altamira Gold provides investors with a unique opportunity to participate in the exploration and development of high-potential gold and copper projects across Brazil’s prolific Alta Floresta Belt, including its flagship Cajueiro Project and emerging discoveries at Apiacas and Santa Helena.

Exploring the Future of Gold and Copper in South America.

Altamira Gold is advancing six gold and copper projects across 115,000 hectares in Brazil’s Alta Floresta Belt.

Our flagship Cajueiro Project holds a 700,000+ oz NI 43-101 gold resource, with expansion potential. Santa Helenaoffers high-grade copper, while Apiacas is a key gold exploration target. Three additional projects support small-scale production for near-term value. With a proven team, strong infrastructure, and sustainable practices, Altamira Gold is unlocking Brazil’s next major gold and copper discoveries.

Apiacas

The largest former placer gold camp in the Alta Floresta Belt with artisanal and mechanised dredge production of over 1Moz. Our drilling to date has identified wide zones of gold mineralization in bedrock, hosted in hydrothermally altered shear zones with demonstrated potential for bulk-tonnage targets.

The Heart of Altamira Gold’s Portfolio

Cajueiro

Our two advanced projects at Cajueiro Central and Maria Bonita are the core of our portfolio. Both remain open at depth and laterally. We have defined an additional 8 drill-ready targets in the Cajueiro district within an interpreted intrusive-related context, providing significant upside.

Santa Helena

Located 60km south west of the 2019 discovery of porphyry copper mineralization at the Jaca Prospect (Anglo American – now operated by Fides Mining), Our Santa Helena project hosts three drill-ready copper-in-soil anomalies defined by Altamira Gold. Previously tested and spatially associated gold mineralization includes shear hosted structures with locally high grades, exploited by limited hard-rock artisanal workings (garimpos).

VALUE-LED

Sustainable Growth for a Stronger Future.

At Altamira Gold, we believe that responsible mining goes beyond exploration—it’s about supporting the communities where we operate. As an active member of a local association, we contribute to infrastructure improvements, road maintenance, and education initiatives, ensuring lasting benefits for local families. By working hand-in-hand with community leaders, we are committed to creating opportunities, improving livelihoods, and fostering sustainable development in Brazil’s Alta Floresta region.

Unlocking Value in Brazil’s Richest Gold & Copper Belt

Altamira Gold is leading the next wave of gold and copper exploration in South America’s emerging mining frontier. With a strategically positioned portfolio in the Alta Floresta Belt, we are advancing world-class projects while prioritizing sustainability, responsible mining, and shareholder value creation.

Investor Overview

Gold Resources Defined

NI 43-101 compliant gold at Cajueiro, with expansion potential.

700,000oz+

Exploration Footprint

Highly prospective gold and copper-rich land holdings.

115,000ha

High-grade copper potential

Copper anomalies at Santa Helena with 172 g/t Au gold values.

0.96%cu

Gold recovery efficiency

Gold recovery rates from metallurgical testing.

90%+

Active exploration & drilling

Drill intercepts at Maria Bonita and Mombaque.

146m @ 1 g/t Au

Pathway to production

Three satellite gold projects advancing toward small-scale production

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The Altamira Leadership Team

Michael Bennett

President & CEO

Alan Carter

Chairman

Soraia Morais

CFO

Ian Talbot

Director

Pieter Le Roux

Director

Ioannis Tsitos

Director

Elvis Alves

Project Manager

2016

A Strategic Beginning

  • Acquired Alta Floresta Gold Ltd., securing 100% interest in six gold properties.
  • Established a dominant position in the Alta Floresta Belt, Brazil.
  • Entered one of South America’s most prolific historical gold-producing regions.
  • Set the foundation for systematic exploration and long-term growth.

2017 – 2020

Laying The Groundwork

  • Conducted mapping, trenching, soil sampling, and early drilling programs.
  • Focused on resource definition at the Cajueiro and Apiacas projects..
  • Identified multiple oxide and sulphide gold targets across portfolio.
  • Built a strong technical team with deep experience in Brazilian geology.

2021 – 2022

Resource Growth & Validation

  • Defined NI 43-101 resource at Cajueiro: 185koz Indicated, 515koz Inferred.
  • Metallurgical testing confirmed excellent gold recoveries (>93%).
  • Expanded infrastructure access: highways, grid power, and air travel.
  • Continued infill and extension drilling to de-risk core assets.

2023

Maria Bonita Discovery

  • Discovered high-grade porphyry-hosted gold system at Maria Bonita
  • Highlight drill result: 146m @ 1g/t Au from 23m.

  • Unveiled large, untouched gold-in-soil anomaly with no prior mining.

  • Marked shift to exploring porphyry-style systems in the belt.

2024

Unlocking a Porphyry District

  • Identified two additional porphyry targets: Mombaque & Espirro.

  • Launched follow-up mapping, sampling, and drone magnetics.

  • Santa Helena Project showed copper-gold porphyry potential near Jaca.
  • Confirmed multi-target, district-scale gold and copper opportunity.

2025

From Discovery to Development

  • Advanced community sustainability programs in the Alta Floresta region.

  • Supported artisanal miners’ transition to formal mining employment..

  • Reforestation and infrastructure partnerships launched.
  • Positioned as a leader in responsible, long-term resource development..