Northwire Canada EditionWednesday, November 4, 2026
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Gold 4,048.40 +2.7% Silver 51.80 +4.1% Copper 6.39 −0.2% Oil 94.31 −1.9% Palladium 989.75 +6.0% NOBL 0.075 +0.0% FOXT 0.110 +10.0% PEMC 0.040 +14.3% CGD 1.10 −8.3% TGOL 0.125 −3.9% SAGA 0.370 +5.7% GPAC 0.150 +11.1% NRN 0.040 +0.0% SCOT 2.08 −7.1% SKEL 0.100 +11.1% STLR 1.07 −5.3% NTX 0.080 +0.0% ALTA 0.180 −2.7% GPM 0.080 +0.0% GRG 0.090 +0.0% DRY 0.145 −3.3% Gold 4,048.40 +2.7% Silver 51.80 +4.1% Copper 6.39 −0.2% Oil 94.31 −1.9% Palladium 989.75 +6.0% NOBL 0.075 +0.0% FOXT 0.110 +10.0% PEMC 0.040 +14.3% CGD 1.10 −8.3% TGOL 0.125 −3.9% SAGA 0.370 +5.7% GPAC 0.150 +11.1% NRN 0.040 +0.0% SCOT 2.08 −7.1% SKEL 0.100 +11.1% STLR 1.07 −5.3% NTX 0.080 +0.0% ALTA 0.180 −2.7% GPM 0.080 +0.0% GRG 0.090 +0.0% DRY 0.145 −3.3%
Resource Estimate Routine +

Altamira Gold Files NI 43-101 Technical Report on Updated Maria Bonita Resource Estimate, Cajueiro Gold District, Brazil

Altamira’s Maria Bonita NI 43-101 report confirms the September resource update with no changes to the deposit’s mineral resource estimates.

By The Northwire Desk — AI Analysis Nov 04, 2026 · 07:01 ALTA · 0.18 Altamira Gold Corp.
Executive Summary

Altamira Gold Corp. has filed a National Instrument 43-101 technical report for the Maria Bonita porphyry gold deposit, located within its Cajueiro Project in Brazil. The filing includes an updated mineral resource estimate with an effective date of September 16, 2026.

The company confirmed that there are no material differences between the resource figures announced in the initial news release on September 21, 2026, and those contained in the filed technical report. Volodymyr Myadzel, PhD, MAIG, served as the Qualified Person for the report. The document is available on SEDAR+ and the company website.

Material Impact

Altamira Gold Corp. (ALTA) filed a standard regulatory follow-up to its September 21, 2026 mineral resource update, which previously announced an 82% increase in contained gold ounces and a 90% increase in tonnage. The filing confirms that there are no material differences between the preliminary announcement and the final technical report, validating the September data without introducing new information.

The market had already reacted to the September announcement, with the stock rallying to a 52-week high of $0.30 before consolidating. This release serves to close the regulatory loop on the resource estimate and does not alter the company's financial outlook, exploration timeline, or valuation metrics.

ALTA · Price
Company Overview

Altamira Gold Corp. (ALTA) is a Canadian exploration and development company focused on the Cajueiro Porphyry Gold District in Brazil. The company controls over 90,000 hectares across four project areas in the Juruena Gold Belt.

The flagship project comprises two defined mineral resources: the Maria Bonita porphyry gold deposit and the Cajueiro Central deposit. Maria Bonita hosts 25.32 Mt @ 0.50 g/t Au (Indicated) and 69.54 Mt @ 0.41 g/t Au (Inferred), with a high-grade core of 513,000 oz at 0.75-0.80 g/t Au. Cajueiro Central hosts 5.66 Mt @ 1.01 g/t Au (Indicated) and 12.66 Mt @ 1.26 g/t Au (Inferred).

The district benefits from existing infrastructure, including paved road access, grid power, and a trial mining permit for Cajueiro Central.

Read the original news release →

More from Altamira Gold Corp.

Oct 08, 2026 · 07:30

Altamira’s 134m at 0.5 g/t confirms pit grade while its 114m at 0.7 g/t trench offers the real upside.

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Altamira’s Maria Bonita resource increased 82% to 1.31 moz, with 69% classified as Inferred.

Resource Estimate Aug 25, 2026 · 07:30

Altamira’s wide low-grade porphyry step-out confirms the western body near cut-off grades.

Drill Results Aug 19, 2026 · 07:30

Altamira acquires a 58km² land package in Brazil to unlock district-scale exploration potential.

Drill Results Jul 23, 2026 · 08:30

Altamira’s low-grade porphyry gold expansion at Maria Bonita adds tonnage but lacks the grade punch to re-rate the project.

Drill Results May 20, 2026 · 07:30

Altamira Gold Extends Maria Bonita Footprint, But Dilution Fears Weigh on Shares

Drill Results