Altamira Gold Corp. (TSXV: ALTA) has announced the filing of a National Instrument 43-101 technical report covering the updated mineral resource estimate for the Maria Bonita porphyry gold deposit at its Cajueiro Project in Brazil. The report carries an effective date of September 16, 2026, and was made available on the company's website. The company confirmed there are no material differences between the resource figures published in its September 21, 2026 press release and those contained in the formal report, providing regulatory confirmation of the earlier disclosure.

Key Points

  • Altamira Gold Corp. (TSXV: ALTA | FSE: T6UP | OTCQB: EQTRF) filed an updated NI 43-101 technical report on the Maria Bonita deposit
  • The report has an effective date of September 16, 2026, formalising a resource estimate first announced on September 21, 2026
  • The company confirmed no material differences exist between the previously announced resource and the figures in the filed report
  • Investors may be watching for further exploration results across Altamira's four projects spanning over 90,000 hectares in the Juruena Gold Belt

NI 43-101 Report Confirms Maria Bonita Resource Estimate

Altamira Gold stated that the NI 43-101 technical report formally documents the updated resource estimate for its Maria Bonita porphyry gold deposit within the Cajueiro Project in western central Brazil. The report, effective September 16, 2026, was prepared under the supervision of Qualified Person Volodymyr Myadzel, PhD, MAIG, acting as a consultant to the company. The company emphasised that the resource figures in the report are consistent with those announced publicly in September, reinforcing confidence in the integrity of its earlier disclosure.

Cajueiro Project's Position Within the Juruena Gold Belt

The Cajueiro Project hosts two gold deposits and sits within the Juruena Gold Belt, a region Altamira describes as historically yielding over six million ounces of placer gold. The company's total land package across four projects spans over 90,000 hectares. The release states that ongoing exploration and fieldwork at Cajueiro indicate the presence of multiple hard rock gold occurrences traceable from historical alluvial gold production, which the company suggests highlights regional scalability potential. The company did not disclose new resource tonnage or grade figures in this announcement.

Qualified Person Oversight and Regulatory Compliance

The technical report was supervised by Volodymyr Myadzel, PhD, MAIG, who is identified as both a consultant to Altamira and a Qualified Person as defined under National Instrument 43-101. His involvement provides the regulatory sign-off required for the resource estimate to be used in formal corporate disclosures under Canadian securities rules. The report has been made available on the company's website. The filing represents standard compliance procedure following the resource estimate announcement published six weeks prior.