Altamire Gold Stock Price, News & Analysis

Altamira Gold Corp. (OTCQB: EQTRF) is a mineral exploration company focused on the discovery and development of gold and copper projects in western central Brazil. According to company disclosures, Altamira is advancing five projects that together cover more than 100,000 hectares within the Juruena Gold Belt, an area that has historically yielded over 6 million ounces of placer gold. The company’s most advanced asset is the Cajueiro project, a district-scale gold system that hosts two defined gold deposits and multiple additional exploration targets.

Altamira’s shares trade in the United States on the OTCQB under the symbol EQTRF, and in Canada on the TSX Venture Exchange under the symbol ALTA. The company is classified in the gold ore mining industry within the broader mining, quarrying, and oil and gas extraction sector.

Cajueiro Project and District-Scale Potential

The Cajueiro district is located in central western Brazil and is described by the company as its most advanced project. It consists of two independently estimated NI 43-101 gold mineral resources at Cajueiro Central and Maria Bonita, plus a series of additional untested or partially tested exploration targets within a radius of approximately 8 km of Cajueiro Central. Company technical reports and news releases state that the combined resources at Cajueiro Central and Maria Bonita amount to approximately 1.42 million ounces of gold, based on Indicated and Inferred open-pit resources.

The Cajueiro area is characterized by historical alluvial gold workings along a roughly 15 km stretch of the Teles Pires river. Company materials explain that gold mineralization in hard-rock porphyry systems is interpreted as the source of some of this alluvial gold. An east–west corridor of gold anomalies in soils and rock chips, together with sub-cropping intrusions and later gabbroic dykes, outlines a structural trend that hosts both the known deposits and several additional targets.

Cajueiro Central Deposit

The Cajueiro Central area hosts an NI 43-101 open-pit resource that includes Indicated and Inferred categories. According to the referenced NI 43-101 Technical Report (Cajueiro Project, Mineral Resource Estimate, Global Resource Engineering, 2019), the Central area resource was estimated using a cut-off grade of 0.25 g/t gold and a gold price of US$1,500 per ounce. Company descriptions note that the Central deposit comprises several moderately dipping mineralized vein and breccia structures with strike lengths up to hundreds of meters and thicknesses up to tens of meters.

These mineralized breccias are described as mesothermal zones associated with a porphyry centre that has not yet been fully identified. The breccias contain quartz, sericite alteration, pyrite and minor base metal sulphides, and grades are reported to vary in part with sulphide content. A trial induced polarization (IP) survey line has shown that these breccias can be defined by chargeability profiles, and further ground geophysics is planned to better delineate the mineralized zones.

Maria Bonita Porphyry Gold Deposit

The Maria Bonita deposit is an open-pit porphyry gold system located within the same district. An NI 43-101 Technical Report (Mineral Resource for the Maria Bonita Prospect, VMG Consultoria, 2025) supports Indicated and Inferred resources calculated using a 0.2 g/t gold cut-off grade and a gold price of US$2,780 per ounce. These resources include near-surface saprolite material as well as primary porphyry-hosted mineralization.

Company drilling has outlined a large body of quartz porphyry intrusive rock that is pervasively mineralized. For example, one deep drill hole (MBA032) intersected hundreds of meters of quartz porphyry with consistent gold values, demonstrating that the mineralized system extends significantly at depth. Previous drilling (e.g., hole MBA029) intersected long intervals of higher-grade mineralization closer to surface. The mineralized zone at Maria Bonita is interpreted by the company as dipping to the south and remaining open down-dip.

Altamira describes Maria Bonita as part of a district-scale, porphyry-related mineralizing event. The deposit is hosted within a broad magnetic low that coincides with alteration and mineralization, and drilling has identified a higher-grade core within a larger halo of lower-grade but continuous gold values.

Exploration Targets: Tavares Norte, Morro Verde and District Corridor

Beyond the two defined deposits, Altamira has identified multiple porphyry-style targets within the Cajueiro district. Company news releases highlight at least eight additional porphyry gold targets within an approximately 8 km radius of Cajueiro Central. Among these, Tavares Norte and Morro Verde have been the focus of recent reconnaissance drilling and surface work.

The Tavares Norte prospect lies roughly 1 km northwest of the Central resource area and several kilometres east of Maria Bonita. It is defined by a large gold-in-soil anomaly and surface rock chip grab samples that have returned notable gold values, along with anomalous copper and molybdenum. Initial drilling at Tavares Norte has intersected extensive zones of quartz porphyry and magmatic breccia with sulphide mineralization and potassic and phyllic alteration. One drill hole (TVN002) returned a broad interval of low-grade gold mineralization with internal higher-grade sections, supporting the interpretation of a second mineralized porphyry body similar in style to Maria Bonita.

The Morro Verde prospect is located between Tavares Norte and the Central resource area within a broad zone of sericite alteration. Surface mapping has identified quartz-veined porphyry and intrusive breccias, and grab samples have returned gold values with associated copper and molybdenum. Scout drilling at Morro Verde has intersected altered quartz porphyry intrusives with potassic and sericite alteration and quartz veining. One hole (MRV003) intersected a discrete interval of higher-grade gold mineralization within an altered porphyry phase, representing the first high-grade intercept associated with porphyritic host rocks in the district.

Altamira reports that the Tavares Norte and Morro Verde targets, together with Maria Bonita and Cajueiro Central, are aligned along an east–west corridor defined by gold-in-soil anomalies, rock chip anomalies, hydrothermal alteration and sub-cropping intrusions. This corridor is interpreted as a long-lived crustal structure that has localized multiple porphyry centres.

Exploration Strategy and Technical Work

The company’s stated strategy at Cajueiro combines resource expansion at the existing deposits with district-scale exploration for additional porphyry centres. Recent work programs include:

• Deep diamond drilling at Maria Bonita to test the down-dip and down-plunge extent of the higher-grade core and to enlarge the overall mineralized footprint.
• Scout drilling at Tavares Norte and Morro Verde to confirm porphyry-style mineralization and evaluate the scale of these systems.
• Ground geophysics, including induced polarization surveys, to map chargeability responses associated with mineralized breccias at Cajueiro Central.
• A high-resolution drone magnetic survey over tens of square kilometres to support target definition and geological interpretation across the district.
• Ongoing soil sampling, rock chip sampling and geological mapping to refine drill targets.

Altamira notes that quality assurance and quality control procedures include the use of certified reference materials and blanks, fire assay methods for gold, and independent laboratory analysis. Drill results are reported as down-hole length-weighted intersections.

Environmental Permit and Trial Mining Licences

Within the Central resource area, Altamira has received an Environmental Installation License (Licença de Instalação, LI) from the Pará State Secretariat of Environment, Climate and Sustainability (SEMAS/PA) for two trial mining licences. This permit covers the northern part of the Central resource area, including the Baldo and Matrincha targets, and authorizes the installation of activities related to trial mining for a defined period.

According to the company, the license allows construction of a plant that could initially process up to 100,000 tonnes of material per year across two mineral rights, with potential feed from the Baldo and Matrincha zones. Altamira states that trial mining, if undertaken, could provide information on structural controls on gold mineralization and help refine the deposit model through reconciliation of mined material, as well as potentially generate cash flow.

Juruena Gold Belt Positioning

Altamira situates its projects within the Juruena Gold Belt, which is described in company materials and cited academic work as a Paleoproterozoic continental magmatic arc province with significant potential for epithermal and porphyry-related gold and copper deposits. The company notes that this belt has historically produced more than 6 million ounces of placer gold and that its projects occupy a portion of this broader mineral province.

At Cajueiro, the presence of multiple porphyry-style systems, historical alluvial workings, and two established NI 43-101 mineral resources are presented by Altamira as evidence of a district-scale opportunity. The company also references additional projects in the region, such as Apiacas and Santa Helena, as part of its broader portfolio, though Cajueiro is consistently described as the most advanced.

Technical Oversight

Altamira’s technical disclosures reference Qualified Persons as defined by National Instrument 43-101. Multiple news releases state that geological and technical information has been supervised or approved by a Qualified Person, including consultants with professional designations such as FAIG and MAusIMM. The company also cites independent technical reports prepared by Global Resource Engineering and VMG Consultoria for the Cajueiro Central and Maria Bonita resources, respectively.

Key Characteristics for Investors to Consider

Based on the company’s public disclosures, notable characteristics of Altamira Gold Corp. and its EQTRF stock include:

• Focus on gold and copper exploration in western central Brazil.
• Flagship Cajueiro project with two NI 43-101 gold deposits (Cajueiro Central and Maria Bonita) and a combined resource base of approximately 1.42 million ounces of gold.
• Multiple additional porphyry-style targets (including Tavares Norte and Morro Verde) within an 8 km radius of Cajueiro Central.
• Location within the Juruena Gold Belt, an area with significant historical placer gold production.
• Ongoing drilling programs using one or more diamond drill rigs to expand resources and test new targets.
• An environmental installation license enabling potential trial mining at parts of the Central deposit.

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