# Altamira Gold Announces Filing of NI 43-101 Technical Report for Maria Bonita Porphyry Gold Project, Cajueiro District, Brazil Canonical Atlas analysis: https://atlas-extractions.minestarters.com/news/altamira-gold-announces-filing-of-ni-43-101-technical-report-for-maria-bonita-po--dde6b995-2a13-4d60-9bc5-6e4c7c08e68c Original source: https://money.tmx.com/en/quote/ALTA/news/4544056946066071/altamira-gold-announces-filing-of-ni-43-101-technical-report-for-maria-bonita-po Publisher: tmx Original announcement: 2025-06-19T15:16:00.000Z Analysis by Minestarters Atlas Atlas analysis published: Unknown date Atlas analysis updated: Unknown date - Company: Altamira Gold Corp. - Ticker: ALTA - Exchange: TSX - Region: Brazil - Primary commodity: Gold - Secondary commodities: Copper - Document categories: Resource update, Other - Extracted: 2026-09-13 12:03:42 UTC Narrative sentiment: 0.00 · Neutral ## Minestarters Atlas summary Altamira Gold Corp. has filed an NI 43-101 technical report for the Maria Bonita porphyry gold project in Brazil. The report formalizes the maiden resource estimate previously announced on May 5, 2025, with no material changes to the reported figures. Reasoning: The document is a formal filing of a technical report for a maiden resource estimate that was already published in a press release on May 5, 2025; it contains no new assay or resource data. - Negative factor: Stale Data Re-release Facts used in scoring: 4 ## Classification and evidence **Stale Data Re-release** Polarity: negative Story-specific tag Definition: Historical results re-announced with no new assays or reinterpretation — low genuine novelty. Why it applies: The technical report is a filing for a maiden resource estimate that was already published in a press release on May 5, 2025. Evidence · text > The maiden resource was originally published in a press release on May 5, 2025 **Maiden Resource** Polarity: neutral Definition: First formal MRE for the project — establishes baseline but typically exploration-stage with high Inferred component. No prior estimate exists, so every change band is not applicable. Why it applies: The report covers the maiden resource estimate for the Maria Bonita deposit. Evidence · text > filed a National Instrument 43-101 technical report \(the " Report" \) on the maiden resource estimate for the Maria Bonita porphyry gold deposit ## Extracted facts Stored fact records: 4. Some facts used in scoring do not have a stored record. ## Resource Estimates (4) ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/altamira-gold-announces-filing-of-ni-43-101-technical-report-for-maria-bonita-po--dde6b995-2a13-4d60-9bc5-6e4c7c08e68c#fact-resource-facts-0) Cajueiro · gold Historical result Needs review: historical\_restatement #### Identity - Project: Cajueiro - Commodity: gold - Region: brazil - Reported Region: Brazil - Ticker: ALTA #### Resource scope - Estimate type: resource - Resource group id: resource:0018b5189a32b443e516 - Deposit or zone: Central Area #### Resource Data - Category: indicated - Tonnes: 5660000 - Grade: 1.02 - Grade Unit: g/t - Contained Metal: 185000 - Contained Unit: oz #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2025-05-05T00:00:00.000Z #### Dates - Event date: 2025-06-19T00:00:00.000Z Reasoning: Restatement of Indicated resource for Central Area previously announced on May 5, 2025. Evidence · text > Central Area of 185,000 ounces of gold in the Indicated category \(5.66Mt @ 1.02 g/t\) #### Tags used in scoring **Indicated Resource** Polarity: positive Definition: Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves. Why it applies: category is "indicated" **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/altamira-gold-announces-filing-of-ni-43-101-technical-report-for-maria-bonita-po--dde6b995-2a13-4d60-9bc5-6e4c7c08e68c#fact-resource-facts-1) Cajueiro · gold Historical result Needs review: historical\_restatement #### Identity - Project: Cajueiro - Commodity: gold - Region: brazil - Reported Region: Brazil - Ticker: ALTA #### Resource scope - Estimate type: resource - Resource group id: resource:a62f13dbbadf5f6c7418 - Deposit or zone: Central Area #### Resource Data - Category: inferred - Tonnes: 12660000 - Grade: 1.26 - Grade Unit: g/t - Contained Metal: 515000 - Contained Unit: oz #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2025-05-05T00:00:00.000Z #### Dates - Event date: 2025-06-19T00:00:00.000Z Reasoning: Restatement of Inferred resource for Central Area previously announced on May 5, 2025. Evidence · text > additional 515,000 ounces in the Inferred category \(12.66Mt @ 1.26 g/t\) #### Tags used in scoring **Inferred Resource** Polarity: negative Definition: Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone. Why it applies: category is "inferred" **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/altamira-gold-announces-filing-of-ni-43-101-technical-report-for-maria-bonita-po--dde6b995-2a13-4d60-9bc5-6e4c7c08e68c#fact-resource-facts-2) Cajueiro · gold Historical result Needs review: historical\_restatement #### Identity - Project: Cajueiro - Commodity: gold - Region: brazil - Reported Region: Brazil - Ticker: ALTA #### Resource scope - Estimate type: resource - Resource group id: resource:2508c56002ca7879e39c - Deposit or zone: Maria Bonita #### Resource Data - Category: indicated - Tonnes: 24190000 - Grade: 0.46 - Grade Unit: g/t - Contained Metal: 357800 - Contained Unit: oz #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2025-05-05T00:00:00.000Z #### Dates - Event date: 2025-06-19T00:00:00.000Z Reasoning: Restatement of Indicated resource for Maria Bonita previously announced on May 5, 2025. Evidence · text > Maria Bonita area, an NI 43-101 compliant resource estimate of 357,800 ounces of gold in the Indicated category \(24.19 Mt @ 0.46g/t gold\) #### Tags used in scoring **Indicated Resource** Polarity: positive Definition: Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves. Why it applies: category is "indicated" **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/altamira-gold-announces-filing-of-ni-43-101-technical-report-for-maria-bonita-po--dde6b995-2a13-4d60-9bc5-6e4c7c08e68c#fact-resource-facts-3) Cajueiro · gold Historical result Needs review: historical\_restatement #### Identity - Project: Cajueiro - Commodity: gold - Region: brazil - Reported Region: Brazil - Ticker: ALTA #### Resource scope - Estimate type: resource - Resource group id: resource:5d227db4e48704c4868d - Deposit or zone: Maria Bonita #### Resource Data - Category: inferred - Tonnes: 25640000 - Grade: 0.44 - Grade Unit: g/t - Contained Metal: 362400 - Contained Unit: oz #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2025-05-05T00:00:00.000Z #### Dates - Event date: 2025-06-19T00:00:00.000Z Reasoning: Restatement of Inferred resource for Maria Bonita previously announced on May 5, 2025. Evidence · text > additional 362,400 ounces gold in the Inferred category \(25.64 Mt @ 0.44g/t gold\) #### Tags used in scoring **Inferred Resource** Polarity: negative Definition: Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone. Why it applies: category is "inferred" **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated ## How Atlas produces this analysis Minestarters Atlas uses automated extraction to summarize mining announcements, identify reported measurements, and classify supporting evidence. Sentiment reflects the extracted narrative and classification rules; it is an interpretation, not a reported measurement. Evidence quotes and context are provided where available. Missing data, low-confidence results, and review flags indicate limitations. Check the original publisher announcement before relying on an interpretation.