# Golden Arrow Reports Initial Mineral Resource Estimate for San Pietro Copper-Gold-Iron-Cobalt Project, Chile Canonical Atlas analysis: https://atlas-extractions.minestarters.com/news/golden-arrow-reports-initial-mineral-resource-estimate-for-san-pietro-copper-gol--bbea4252-a910-49bc-b3d0-3b8a03ccf93e Original source: https://money.tmx.com/en/quote/GRG/news/5893616023644268/golden-arrow-reports-initial-mineral-resource-estimate-for-san-pietro-copper-gol Publisher: tmx Original announcement: 2025-02-28T12:00:00.000Z Analysis by Minestarters Atlas Atlas analysis published: Unknown date Atlas analysis updated: Unknown date - Company: Golden Arrow Resources Corporation - Ticker: GRG - Exchange: TSX - Region: Chile - Primary commodity: Copper - Secondary commodities: Gold, Iron ore, Cobalt - Document categories: Resource update - Extracted: 2026-09-16 03:24:10 UTC Narrative sentiment: 0.10 · Bullish ## Minestarters Atlas summary Golden Arrow Resources announced its maiden Mineral Resource Estimate for the San Pietro Copper-Gold-Iron-Cobalt Project in Chile, reporting 492 million tonnes at an average grade of 0.23% Cu, 0.05 g/t Au, 14.43% Fe, and 99 ppm Co in the Inferred category. This initial pit-constrained estimate includes 2.5 billion pounds of copper and 770,000 ounces of gold, establishing a significant resource base for the project. The company plans further drilling to upgrade resource categories and undertake project-specific metallurgical testwork. Reasoning: Golden Arrow announced its initial pit-constrained Inferred Mineral Resource Estimate for the San Pietro project, totaling 492 Mt at 0.23% Cu, 0.05 g/t Au, 14.43% Fe, and 99 ppm Co, which establishes a significant baseline but is entirely in the lowest confidence category. - Positive factor: Maiden Resource - Positive factor: Large Tonnage - Positive factor: Pit-Constrained - Positive factor: Multi-Commodity - Positive factor: NI 43-101 Compliant - Positive factor: QP-Signed - Negative factor: 100% Inferred Category - Negative factor: Relatively Low Grades for Copper and Gold - Negative factor: Metallurgical Recoveries Assumed Low confidence — this extraction should be reviewed alongside the original source. Facts used in scoring: 4 ## Classification and evidence **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: This is the first mineral resource estimate announced for the San Pietro project. Evidence · text > first mineral resource estimate \("MRE"\) for the San Pietro Copper-Gold-Iron-Cobalt Project **Inferred Resource** Polarity: negative Definition: Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone. Why it applies: The entire resource estimate is classified in the Inferred category. Evidence · text > 492 million tonnes at an average grade of 0.23% Cu, 0.05 g/t Au, 14.43% Fe & 99 ppm Co in the Inferred category **All Inferred** Polarity: negative Definition: M&I share below the weak bound — very early stage, no engineering confidence. Why it applies: The resource estimate reports 100% of its tonnage in the Inferred category, indicating an early stage of confidence. Evidence · text > 492 million tonnes at an average grade of 0.23% Cu, 0.05 g/t Au, 14.43% Fe & 99 ppm Co in the Inferred category **NI 43-101 Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with NI 43-101 \(Canada\) — high reporting standard. Why it applies: The mineral resource estimate is prepared in accordance with National Instrument 43-101 Standards of Disclosure for Mineral Projects. Evidence · text > independent technical report prepared in accordance with National Instrument 43-101 Standards of Disclosure for Mineral Projects \("NI 43-101"\) **QP/CP Signed** Polarity: positive Definition: Qualified Person \(QP\) or Competent Person \(CP\) named and signed off — a member of a recognized professional association \(e.g., AusIMM, SME, AIG, P.Geo\) with relevant experience. Why it applies: The Mineral Resource Estimate was prepared under the direction of Susan Lomas, P.Geo., and Bruce Davis Ph.D., F.AusIMM, both independent Qualified Persons. Evidence · text > The Mineral Resource Estimate and technical data in this news release were prepared under the direction of Susan Lomas , P.Geo., of Lions Gate Geological Consulting Inc. and Bruce Davis Ph.D., F.AusIMM, Consultant. Both Ms. Lomas and Dr. Davis are independent Qualified Persons as defined in NI 43-101. **Cut-off Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: The resource is reported using a 0.30% CuEq cutoff grade. Evidence · table > 0.30 Context: 492 ## Extracted facts Stored fact records: 4. Some facts used in scoring do not have a stored record. ## Resource Estimates (4) ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/golden-arrow-reports-initial-mineral-resource-estimate-for-san-pietro-copper-gol--bbea4252-a910-49bc-b3d0-3b8a03ccf93e#fact-resource-facts-0) San Pietro · copper #### Identity - Project: San Pietro - Commodity: copper - Region: chile - Reported Region: Chile - Ticker: GRG #### Resource scope - Estimate type: resource - Effective date: 2025-01-24T00:00:00.000Z - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Susan Lomas, Bruce Davis - Resource group id: resource:3e253fa0f1c590654d1e - Deposit or zone: Rincones and Colla Deposits #### Resource Data - Category: inferred - Tonnes: 492000000 - Grade: 0.23 - Grade Unit: % - Contained Metal: 2470 - Contained Unit: mlb - Cutoff Grade: 0.3 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2025-01-24 #### Metal Equivalent - Metal Eq. Grade: 0.41 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Location - Loc. Confidence: inferred #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-02-28T00:00:00.000Z Reasoning: Initial Inferred resource of 492 Mt at 0.23% Cu establishes a significant copper base, but the grade is low for an IOCG deposit and the confidence is limited by the Inferred category. - Positive factor: Maiden Resource - Positive factor: Large Tonnage - Positive factor: Pit-Constrained - Positive factor: NI 43-101 Compliant - Positive factor: QP-Signed - Negative factor: 100% Inferred Category - Negative factor: Relatively Low Grade - Negative factor: Metallurgical Recoveries Assumed Evidence · table > 0.23 Context: 492 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is stated **QP/CP Signed** Polarity: positive Definition: Qualified Person \(QP\) or Competent Person \(CP\) named and signed off — a member of a recognized professional association \(e.g., AusIMM, SME, AIG, P.Geo\) with relevant experience. Why it applies: qp\_signed is true **NI 43-101 Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with NI 43-101 \(Canada\) — high reporting standard. Why it applies: reporting\_standards includes ni\_43\_101 ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/golden-arrow-reports-initial-mineral-resource-estimate-for-san-pietro-copper-gol--bbea4252-a910-49bc-b3d0-3b8a03ccf93e#fact-resource-facts-1) San Pietro · gold #### Identity - Project: San Pietro - Commodity: gold - Region: chile - Reported Region: Chile - Ticker: GRG #### Resource scope - Estimate type: resource - Effective date: 2025-01-24T00:00:00.000Z - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Susan Lomas, Bruce Davis - Resource group id: resource:3e253fa0f1c590654d1e - Deposit or zone: Rincones and Colla Deposits #### Resource Data - Category: inferred - Tonnes: 492000000 - Grade: 0.05 - Grade Unit: g/t - Contained Metal: 770000 - Contained Unit: oz - Cutoff Grade: 0.3 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2025-01-24 #### Metal Equivalent - Metal Eq. Grade: 0.41 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Location - Loc. Confidence: inferred #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-02-28T00:00:00.000Z Reasoning: Initial Inferred resource of 492 Mt at 0.05 g/t Au provides a gold credit, but the grade is very low and the confidence is limited by the Inferred category. - Positive factor: Maiden Resource - Positive factor: Large Tonnage - Positive factor: Pit-Constrained - Positive factor: NI 43-101 Compliant - Positive factor: QP-Signed - Negative factor: 100% Inferred Category - Negative factor: Very Low Grade - Negative factor: Metallurgical Recoveries Assumed Evidence · table > 0.05 Context: 492 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is stated **QP/CP Signed** Polarity: positive Definition: Qualified Person \(QP\) or Competent Person \(CP\) named and signed off — a member of a recognized professional association \(e.g., AusIMM, SME, AIG, P.Geo\) with relevant experience. Why it applies: qp\_signed is true **NI 43-101 Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with NI 43-101 \(Canada\) — high reporting standard. Why it applies: reporting\_standards includes ni\_43\_101 ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/golden-arrow-reports-initial-mineral-resource-estimate-for-san-pietro-copper-gol--bbea4252-a910-49bc-b3d0-3b8a03ccf93e#fact-resource-facts-2) San Pietro · cobalt #### Identity - Project: San Pietro - Commodity: cobalt - Region: chile - Reported Region: Chile - Ticker: GRG #### Resource scope - Estimate type: resource - Effective date: 2025-01-24T00:00:00.000Z - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Susan Lomas, Bruce Davis - Resource group id: resource:3e253fa0f1c590654d1e - Deposit or zone: Rincones and Colla Deposits #### Resource Data - Category: inferred - Tonnes: 492000000 - Grade: 99 - Grade Unit: ppm - Contained Metal: 107 - Contained Unit: mlb - Cutoff Grade: 0.3 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2025-01-24 #### Metal Equivalent - Metal Eq. Grade: 0.41 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Location - Loc. Confidence: inferred #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-02-28T00:00:00.000Z Reasoning: Initial Inferred resource of 492 Mt at 99 ppm Co provides a cobalt credit, adding to the polymetallic nature of the deposit, but the confidence is limited by the Inferred category. - Positive factor: Maiden Resource - Positive factor: Large Tonnage - Positive factor: Pit-Constrained - Positive factor: NI 43-101 Compliant - Positive factor: QP-Signed - Negative factor: 100% Inferred Category - Negative factor: Metallurgical Recoveries Assumed Evidence · table > 99 Context: 492 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is stated **QP/CP Signed** Polarity: positive Definition: Qualified Person \(QP\) or Competent Person \(CP\) named and signed off — a member of a recognized professional association \(e.g., AusIMM, SME, AIG, P.Geo\) with relevant experience. Why it applies: qp\_signed is true **NI 43-101 Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with NI 43-101 \(Canada\) — high reporting standard. Why it applies: reporting\_standards includes ni\_43\_101 ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/golden-arrow-reports-initial-mineral-resource-estimate-for-san-pietro-copper-gol--bbea4252-a910-49bc-b3d0-3b8a03ccf93e#fact-resource-facts-3) San Pietro · iron\_ore #### Identity - Project: San Pietro - Commodity: iron\_ore - Region: chile - Reported Region: Chile - Ticker: GRG #### Resource scope - Estimate type: resource - Effective date: 2025-01-24T00:00:00.000Z - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Susan Lomas, Bruce Davis - Resource group id: resource:3e253fa0f1c590654d1e - Deposit or zone: Rincones and Colla Deposits #### Resource Data - Category: inferred - Tonnes: 492000000 - Grade: 14.43 - Grade Unit: % - Contained Metal: 157 - Contained Unit: blb - Cutoff Grade: 0.3 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2025-01-24 #### Metal Equivalent - Metal Eq. Grade: 0.41 - Metal Eq. Unit: % CuEq - Assumptions Disclosed: Yes #### Location - Loc. Confidence: inferred #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-02-28T00:00:00.000Z Reasoning: Initial Inferred resource of 492 Mt at 14.43% Fe provides a substantial iron component, which is a positive for an IOCG deposit, but the confidence is limited by the Inferred category. - Positive factor: Maiden Resource - Positive factor: Large Tonnage - Positive factor: Pit-Constrained - Positive factor: NI 43-101 Compliant - Positive factor: QP-Signed - Positive factor: Moderate Grade - Negative factor: 100% Inferred Category - Negative factor: Metallurgical Recoveries Assumed Evidence · table > 14.43 Context: 492 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is stated **QP/CP Signed** Polarity: positive Definition: Qualified Person \(QP\) or Competent Person \(CP\) named and signed off — a member of a recognized professional association \(e.g., AusIMM, SME, AIG, P.Geo\) with relevant experience. Why it applies: qp\_signed is true **NI 43-101 Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with NI 43-101 \(Canada\) — high reporting standard. Why it applies: reporting\_standards includes ni\_43\_101 ## 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.