# Capstone Copper Completes Acquisition of San Pietro Copper Concessions, Consolidating the Mantoverde-Santo Domingo Copper District Canonical Atlas analysis: https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5 Original source: https://money.tmx.com/en/quote/CS/news/7517033376509396/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida Publisher: tmx Original announcement: 2026-08-31T10:00:00.000Z Analysis by Minestarters Atlas Atlas analysis published: Unknown date Atlas analysis updated: Unknown date - Company: Capstone Copper Corp. - Ticker: CS - Exchange: TSX - Region: Atacama Region, Chile - Primary commodity: Copper - Secondary commodities: Gold, Iron ore, Cobalt - Document categories: Resource update, Agreement transaction - Extracted: 2026-09-15 18:23:44 UTC Narrative sentiment: 0.80 · Bullish ## Minestarters Atlas summary Capstone Copper has completed the acquisition of the San Pietro copper-gold-iron-cobalt project in Chile's Atacama Region, strategically consolidating its Mantoverde-Santo Domingo copper district. The acquisition adds approximately 16,000 hectares of prospective ground and an initial NI 43-101 compliant Inferred Mineral Resource of 492 million tonnes grading 0.23% copper and 0.05 g/t gold at San Pietro. The company also provided updated Mineral Resource and Reserve estimates for its Mantoverde and Santo Domingo projects, further strengthening its position in the region. Reasoning: Capstone Copper's acquisition of the San Pietro project significantly expands its resource base and consolidates its strategic position in the Atacama copper district, despite the initial San Pietro resource being entirely Inferred. The release also provides updated, NI 43-101 compliant resource and reserve estimates for its Mantoverde and Santo Domingo projects, all signed off by a Qualified Person. - Positive factor: Strategic Acquisition - Positive factor: Significant Resource Addition - Positive factor: District Consolidation - Positive factor: Exploration Upside - Positive factor: QP/CP Signed - Positive factor: NI 43-101 Compliant - Positive factor: Contained Metal Growth - Negative factor: All Inferred - Negative factor: Historical Estimate Only - Negative factor: Cut-off Undisclosed Facts used in scoring: 89 ## Classification and evidence **Acquisition Completed** Polarity: positive Story-specific tag Definition: No canonical definition is currently available. Why it applies: Capstone Copper announced the completion of the acquisition of the San Pietro copper concessions. Evidence · text > Capstone Copper Completes Acquisition of San Pietro Copper Concessions **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 Rincones and Colla deposits at San Pietro host an existing NI 43-101 compliant Inferred Mineral Resource, which is the initial resource estimate for the project. Evidence · text > The Project includes the Rincones and Colla deposits, which host an existing NI 43-101 compliant Inferred Mineral Resource of 492 million tonnes **All Inferred** Polarity: negative Definition: M&I share below the weak bound — very early stage, no engineering confidence. Why it applies: The San Pietro resource estimate is entirely comprised of Inferred Mineral Resources \(83 million tonnes of oxide Inferred and 410 million tonnes of sulphide Inferred\). Evidence · text > The Rincones and Colla initial resource estimate comprises 83 million tonnes of oxide Inferred Mineral Resource and 410 million tonnes of sulphide Inferred Mineral Resource. **NI 43-101 Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with NI 43-101 \(Canada\) — high reporting standard. Why it applies: The San Pietro resource is stated to be NI 43-101 compliant. Evidence · text > NI 43-101 compliant Inferred Mineral Resource **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 San Pietro resource was completed by independent qualified persons \(Dr. Bruce David, PhD, FAusIMM and Susan Lomas, P.Geo\). Evidence · text > completed by independent qualified persons \(Dr. Bruce David, PhD, FAusIMM and Susan Lomas, P.Geo\) **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: The document provides updated Mineral Resource estimates for Mantoverde and Santo Domingo. Evidence · text > Estimated Mineral Resources & Mineral Reserves for Mantoverde and Santo Domingo **Proven Reserve** Polarity: positive Definition: Measured Resource with demonstrated economic viability after applying modifying factors. Why it applies: The document reports Proven Reserves for Santo Domingo and Mantoverde. Evidence · table > Proven Context: 130,945 **Probable Reserve** Polarity: positive Definition: Indicated Resource with demonstrated economic viability after applying modifying factors. Why it applies: The document reports Probable Reserves for Santo Domingo and Mantoverde. Evidence · table > Probable Context: 305,111 **Historical Estimate Only** Polarity: negative Definition: Estimate pre-dates or does not comply with current JORC/NI 43-101 standards — requires verification drilling. Why it applies: The Sierra Norte resource is explicitly stated as a 'Historical Mineral Resource' and 'strictly historical in nature and are non compliant with NI 43-101'. Evidence · text > Historical Mineral Resource Estimate for Sierra Norte **No QP/CP Disclosure** Polarity: negative Definition: No Qualified Person or Competent Person named — lower credibility for the estimate. A QP/CP should be a member of a recognized professional association with relevant experience. Why it applies: The Sierra Norte historical estimate states that 'A qualified person has not done sufficient work to classify the historical estimates as current “mineral resources”'. Evidence · text > A qualified person has not done sufficient work to classify the historical estimates as current “mineral resources” **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: The specific cut-off grade for Mantoverde reserves is not a single value but varies by process and zone, making direct comparison difficult. Evidence · text > Mineral Reserves for flotation are estimated above a 0.20% Total Copper \(TCu\) cut-off. Mineral Reserves for leach are estimated above a 0.10% Soluble Copper \(SCu\) cut-off for Dump leach, with a variable Heap cut-off between 0.16% and 0.21% SCu to reflect ore availability. ## Extracted facts Stored fact records: 89. Some facts used in scoring do not have a stored record. ## Resource Estimates (89) ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-0) San Pietro · copper #### Identity - Project: San Pietro - Commodity: copper - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Dr. Bruce David, Susan Lomas - Resource group id: resource:1cde1b340185e1e4ec13 - Material type: oxide #### Resource Data - Category: inferred - Tonnes: 83000000 - Grade: 0.23 - Grade Unit: % - Contained Metal: 759 - Contained Unit: mlb - Cutoff Grade: 0.3 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2025-01-24 #### Metal Equivalent - Assumptions Disclosed: No #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This is a maiden Inferred resource for copper in the oxide zone of the newly acquired San Pietro project, contributing to the overall mineral inventory, though its confidence level is low. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Maiden Resource - Negative factor: All Inferred Evidence · table > 0.23 Context: 83 #### 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/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-1) San Pietro · gold #### Identity - Project: San Pietro - Commodity: gold - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Dr. Bruce David, Susan Lomas - Resource group id: resource:1cde1b340185e1e4ec13 - Material type: oxide #### Resource Data - Category: inferred - Tonnes: 83000000 - Grade: 0.06 - Grade Unit: g/t - Contained Metal: 150 - Contained Unit: koz - Cutoff Grade: 0.3 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2025-01-24 #### Metal Equivalent - Assumptions Disclosed: No #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This is a maiden Inferred resource for gold in the oxide zone of the newly acquired San Pietro project, contributing to the overall mineral inventory, though its confidence level is low. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Maiden Resource - Negative factor: All Inferred Evidence · table > 0.06 Context: 83 #### 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/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-2) San Pietro · cobalt #### Identity - Project: San Pietro - Commodity: cobalt - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Dr. Bruce David, Susan Lomas - Resource group id: resource:1cde1b340185e1e4ec13 - Material type: oxide #### Resource Data - Category: inferred - Tonnes: 83000000 - Grade: 96 - Grade Unit: ppm - Contained Metal: 17 - Contained Unit: mlb - Cutoff Grade: 0.3 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2025-01-24 #### Metal Equivalent - Assumptions Disclosed: No #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This is a maiden Inferred resource for cobalt in the oxide zone of the newly acquired San Pietro project, contributing to the overall mineral inventory, though its confidence level is low. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Maiden Resource - Negative factor: All Inferred Evidence · table > 96 Context: 83 #### 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/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-3) San Pietro · iron\_ore #### Identity - Project: San Pietro - Commodity: iron\_ore - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Dr. Bruce David, Susan Lomas - Resource group id: resource:1cde1b340185e1e4ec13 - Material type: oxide #### Resource Data - Category: inferred - Tonnes: 83000000 - Grade: 14.8 - Grade Unit: % - Contained Metal: 27 - Contained Unit: blb - Cutoff Grade: 0.3 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2025-01-24 #### Metal Equivalent - Assumptions Disclosed: No #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This is a maiden Inferred resource for iron in the oxide zone of the newly acquired San Pietro project, contributing to the overall mineral inventory, though its confidence level is low. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Maiden Resource - Negative factor: All Inferred Evidence · table > 14.80 Context: 83 #### 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/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-4) San Pietro · copper #### Identity - Project: San Pietro - Commodity: copper - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Dr. Bruce David, Susan Lomas - Resource group id: resource:f4a6be602ba86ef8169c - Material type: sulphide #### Resource Data - Category: inferred - Tonnes: 410000000 - Grade: 0.23 - Grade Unit: % - Contained Metal: 3686 - Contained Unit: mlb - Cutoff Grade: 0.3 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2025-01-24 #### Metal Equivalent - Assumptions Disclosed: No #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This is a maiden Inferred resource for copper in the sulphide zone of the newly acquired San Pietro project, contributing significantly to the overall mineral inventory, though its confidence level is low. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Maiden Resource - Negative factor: All Inferred Evidence · table > 0.23 Context: 410 #### 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/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-5) San Pietro · gold #### Identity - Project: San Pietro - Commodity: gold - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Dr. Bruce David, Susan Lomas - Resource group id: resource:f4a6be602ba86ef8169c - Material type: sulphide #### Resource Data - Category: inferred - Tonnes: 410000000 - Grade: 0.05 - Grade Unit: g/t - Contained Metal: 620 - Contained Unit: koz - Cutoff Grade: 0.3 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2025-01-24 #### Metal Equivalent - Assumptions Disclosed: No #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This is a maiden Inferred resource for gold in the sulphide zone of the newly acquired San Pietro project, contributing to the overall mineral inventory, though its confidence level is low. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Maiden Resource - Negative factor: All Inferred Evidence · table > 0.05 Context: 410 #### 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/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-6) San Pietro · cobalt #### Identity - Project: San Pietro - Commodity: cobalt - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Dr. Bruce David, Susan Lomas - Resource group id: resource:f4a6be602ba86ef8169c - Material type: sulphide #### Resource Data - Category: inferred - Tonnes: 410000000 - Grade: 99 - Grade Unit: ppm - Contained Metal: 90 - Contained Unit: mlb - Cutoff Grade: 0.3 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2025-01-24 #### Metal Equivalent - Assumptions Disclosed: No #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This is a maiden Inferred resource for cobalt in the sulphide zone of the newly acquired San Pietro project, contributing to the overall mineral inventory, though its confidence level is low. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Maiden Resource - Negative factor: All Inferred Evidence · table > 99 Context: 410 #### 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/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-7) San Pietro · iron\_ore #### Identity - Project: San Pietro - Commodity: iron\_ore - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Dr. Bruce David, Susan Lomas - Resource group id: resource:f4a6be602ba86ef8169c - Material type: sulphide #### Resource Data - Category: inferred - Tonnes: 410000000 - Grade: 14.35 - Grade Unit: % - Contained Metal: 130 - Contained Unit: blb - Cutoff Grade: 0.3 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2025-01-24 #### Metal Equivalent - Assumptions Disclosed: No #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This is a maiden Inferred resource for iron in the sulphide zone of the newly acquired San Pietro project, contributing to the overall mineral inventory, though its confidence level is low. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Maiden Resource - Negative factor: All Inferred Evidence · table > 14.35 Context: 410 #### 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/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-8) San Pietro · copper #### Identity - Project: San Pietro - Commodity: copper - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Dr. Bruce David, Susan Lomas - Resource group id: resource:7c0113f8a2c2d0ead93d - Material type: mixed #### Resource Data - Category: inferred - Tonnes: 492000000 - Grade: 0.23 - Grade Unit: % - Contained Metal: 4444 - Contained Unit: mlb - Cutoff Grade: 0.3 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2025-01-24 #### Metal Equivalent - Assumptions Disclosed: No #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This is the total maiden Inferred resource for copper at the newly acquired San Pietro project, representing a significant addition to the company's mineral inventory, though its confidence level is low. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Maiden Resource - Negative factor: All Inferred 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/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-9) San Pietro · gold #### Identity - Project: San Pietro - Commodity: gold - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Dr. Bruce David, Susan Lomas - Resource group id: resource:7c0113f8a2c2d0ead93d - Material type: mixed #### Resource Data - Category: inferred - Tonnes: 492000000 - Grade: 0.05 - Grade Unit: g/t - Contained Metal: 770 - Contained Unit: koz - Cutoff Grade: 0.3 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2025-01-24 #### Metal Equivalent - Assumptions Disclosed: No #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This is the total maiden Inferred resource for gold at the newly acquired San Pietro project, representing a significant addition to the company's mineral inventory, though its confidence level is low. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Maiden Resource - Negative factor: All Inferred 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/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-10) San Pietro · cobalt #### Identity - Project: San Pietro - Commodity: cobalt - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Dr. Bruce David, Susan Lomas - Resource group id: resource:7c0113f8a2c2d0ead93d - Material type: mixed #### 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 - Assumptions Disclosed: No #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This is the total maiden Inferred resource for cobalt at the newly acquired San Pietro project, representing a significant addition to the company's mineral inventory, though its confidence level is low. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Maiden Resource - Negative factor: All Inferred 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/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-11) San Pietro · iron\_ore #### Identity - Project: San Pietro - Commodity: iron\_ore - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Dr. Bruce David, Susan Lomas - Resource group id: resource:7c0113f8a2c2d0ead93d - Material type: mixed #### 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 - Assumptions Disclosed: No #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This is the total maiden Inferred resource for iron at the newly acquired San Pietro project, representing a significant addition to the company's mineral inventory, though its confidence level is low. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Maiden Resource - Negative factor: All Inferred 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 ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-12) Santo Domingo · copper #### Identity - Project: Santo Domingo - Commodity: copper - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:7f65e3e4a5be173d2de5 #### Resource Data - Category: measured - Tonnes: 134000000 - Grade: 0.51 - Grade Unit: % - Contained Metal: 679 - Contained Unit: kt - Cutoff Grade: 9.85 - Cutoff Unit: US$/t NSR #### Prior Estimate - Resource Date: 2024-03-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This Measured resource for copper at Santo Domingo provides high confidence and contributes significantly to the project's overall resource base. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Measured Resource Evidence · table > 0.51 Context: 134,000 #### Tags used in scoring **Measured Resource** Polarity: positive Definition: Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves. Why it applies: category is "measured" **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 **Stale Estimate** Polarity: negative Definition: Effective date is >2 years old — data currency concern, may not reflect current geological understanding. Why it applies: effective date is 2.4 years before this release ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-13) Santo Domingo · gold #### Identity - Project: Santo Domingo - Commodity: gold - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:7f65e3e4a5be173d2de5 #### Resource Data - Category: measured - Tonnes: 134000000 - Grade: 0.07 - Grade Unit: g/t - Contained Metal: 293 - Contained Unit: koz - Cutoff Grade: 9.85 - Cutoff Unit: US$/t NSR #### Prior Estimate - Resource Date: 2024-03-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This Measured resource for gold at Santo Domingo provides high confidence and contributes to the project's overall resource base. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Measured Resource Evidence · table > 0.07 Context: 134,000 #### Tags used in scoring **Measured Resource** Polarity: positive Definition: Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves. Why it applies: category is "measured" **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 **Stale Estimate** Polarity: negative Definition: Effective date is >2 years old — data currency concern, may not reflect current geological understanding. Why it applies: effective date is 2.4 years before this release ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-14) Santo Domingo · iron\_ore #### Identity - Project: Santo Domingo - Commodity: iron\_ore - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:7f65e3e4a5be173d2de5 #### Resource Data - Category: measured - Tonnes: 134000000 - Grade: 26.9 - Grade Unit: % - Contained Metal: 36 - Contained Unit: mt - Cutoff Grade: 9.85 - Cutoff Unit: US$/t NSR #### Prior Estimate - Resource Date: 2024-03-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This Measured resource for iron at Santo Domingo provides high confidence and contributes to the project's overall resource base. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Measured Resource Evidence · table > 26.9 Context: 134,000 #### Tags used in scoring **Measured Resource** Polarity: positive Definition: Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves. Why it applies: category is "measured" **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 **Stale Estimate** Polarity: negative Definition: Effective date is >2 years old — data currency concern, may not reflect current geological understanding. Why it applies: effective date is 2.4 years before this release ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-15) Santo Domingo · copper #### Identity - Project: Santo Domingo - Commodity: copper - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:bc266ecfc497f5300970 #### Resource Data - Category: indicated - Tonnes: 413000000 - Grade: 0.25 - Grade Unit: % - Contained Metal: 1025 - Contained Unit: kt - Cutoff Grade: 9.85 - Cutoff Unit: US$/t NSR #### Prior Estimate - Resource Date: 2024-03-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This Indicated resource for copper at Santo Domingo provides good confidence and significantly contributes to the project's overall resource base. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Indicated Resource Evidence · table > 0.25 Context: 413,000 #### 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 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 **Stale Estimate** Polarity: negative Definition: Effective date is >2 years old — data currency concern, may not reflect current geological understanding. Why it applies: effective date is 2.4 years before this release ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-16) Santo Domingo · gold #### Identity - Project: Santo Domingo - Commodity: gold - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:bc266ecfc497f5300970 #### Resource Data - Category: indicated - Tonnes: 413000000 - Grade: 0.03 - Grade Unit: g/t - Contained Metal: 449 - Contained Unit: koz - Cutoff Grade: 9.85 - Cutoff Unit: US$/t NSR #### Prior Estimate - Resource Date: 2024-03-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This Indicated resource for gold at Santo Domingo provides good confidence and contributes to the project's overall resource base. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Indicated Resource Evidence · table > 0.03 Context: 413,000 #### 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 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 **Stale Estimate** Polarity: negative Definition: Effective date is >2 years old — data currency concern, may not reflect current geological understanding. Why it applies: effective date is 2.4 years before this release ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-17) Santo Domingo · copper #### Identity - Project: Santo Domingo - Commodity: copper - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:d2597e25756e3e0248a5 #### Resource Data - Category: indicated - Tonnes: 547000000 - Grade: 0.31 - Grade Unit: % - Contained Metal: 1704 - Contained Unit: kt - Cutoff Grade: 9.85 - Cutoff Unit: US$/t NSR #### Prior Estimate - Resource Date: 2024-03-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This combined Measured and Indicated resource for copper at Santo Domingo represents a substantial and well-defined portion of the project's mineral inventory. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Indicated Resource Evidence · table > 0.31 Context: 547,000 #### 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 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 **Stale Estimate** Polarity: negative Definition: Effective date is >2 years old — data currency concern, may not reflect current geological understanding. Why it applies: effective date is 2.4 years before this release ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-18) Santo Domingo · gold #### Identity - Project: Santo Domingo - Commodity: gold - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:d2597e25756e3e0248a5 #### Resource Data - Category: indicated - Tonnes: 547000000 - Grade: 0.04 - Grade Unit: g/t - Contained Metal: 742 - Contained Unit: koz - Cutoff Grade: 9.85 - Cutoff Unit: US$/t NSR #### Prior Estimate - Resource Date: 2024-03-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This combined Measured and Indicated resource for gold at Santo Domingo represents a substantial and well-defined portion of the project's mineral inventory. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Indicated Resource Evidence · table > 0.04 Context: 547,000 #### 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 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 **Stale Estimate** Polarity: negative Definition: Effective date is >2 years old — data currency concern, may not reflect current geological understanding. Why it applies: effective date is 2.4 years before this release ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-19) Santo Domingo · iron\_ore #### Identity - Project: Santo Domingo - Commodity: iron\_ore - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:d2597e25756e3e0248a5 #### Resource Data - Category: indicated - Tonnes: 547000000 - Contained Metal: 131 - Contained Unit: mt - Cutoff Grade: 9.85 - Cutoff Unit: US$/t NSR #### Prior Estimate - Resource Date: 2024-03-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This combined Measured and Indicated resource for iron at Santo Domingo represents a substantial and well-defined portion of the project's mineral inventory. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Indicated Resource Evidence · table > 131 Context: 547,000 #### 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 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 **Stale Estimate** Polarity: negative Definition: Effective date is >2 years old — data currency concern, may not reflect current geological understanding. Why it applies: effective date is 2.4 years before this release ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-20) Santo Domingo · copper #### Identity - Project: Santo Domingo - Commodity: copper - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:9ff39df9e79dcde39f48 #### Resource Data - Category: inferred - Tonnes: 230000000 - Grade: 0.21 - Grade Unit: % - Contained Metal: 477 - Contained Unit: kt - Cutoff Grade: 9.85 - Cutoff Unit: US$/t NSR #### Prior Estimate - Resource Date: 2024-03-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This Inferred resource for copper at Santo Domingo adds to the project's overall mineral inventory but has lower geological confidence. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Negative factor: Inferred Resource Evidence · table > 0.21 Context: 230,000 #### 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 **Stale Estimate** Polarity: negative Definition: Effective date is >2 years old — data currency concern, may not reflect current geological understanding. Why it applies: effective date is 2.4 years before this release ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-21) Santo Domingo · gold #### Identity - Project: Santo Domingo - Commodity: gold - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:9ff39df9e79dcde39f48 #### Resource Data - Category: inferred - Tonnes: 230000000 - Grade: 0.03 - Grade Unit: g/t - Contained Metal: 200 - Contained Unit: koz - Cutoff Grade: 9.85 - Cutoff Unit: US$/t NSR #### Prior Estimate - Resource Date: 2024-03-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This Inferred resource for gold at Santo Domingo adds to the project's overall mineral inventory but has lower geological confidence. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Negative factor: Inferred Resource Evidence · table > 0.03 Context: 230,000 #### 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 **Stale Estimate** Polarity: negative Definition: Effective date is >2 years old — data currency concern, may not reflect current geological understanding. Why it applies: effective date is 2.4 years before this release ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-22) Santo Domingo · iron\_ore #### Identity - Project: Santo Domingo - Commodity: iron\_ore - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:9ff39df9e79dcde39f48 #### Resource Data - Category: inferred - Tonnes: 230000000 - Contained Metal: 46 - Contained Unit: mt - Cutoff Grade: 9.85 - Cutoff Unit: US$/t NSR #### Prior Estimate - Resource Date: 2024-03-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This Inferred resource for iron at Santo Domingo adds to the project's overall mineral inventory but has lower geological confidence. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Negative factor: Inferred Resource Evidence · table > 46 Context: 230,000 #### 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 **Stale Estimate** Polarity: negative Definition: Effective date is >2 years old — data currency concern, may not reflect current geological understanding. Why it applies: effective date is 2.4 years before this release ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-23) Mantoverde · copper #### Identity - Project: Mantoverde - Commodity: copper - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:551b168f2921fb2b6d81 - Material type: Sulphides \(Flotation\) #### Resource Data - Category: measured - Tonnes: 174942000 - Grade: 0.56 - Grade Unit: % - Contained Metal: 988 - Contained Unit: kt - Cutoff Grade: 0.2 - Cutoff Unit: % TCu #### Prior Estimate - Resource Date: 2025-12-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This Measured resource for copper in Mantoverde Sulphides \(Flotation\) provides high confidence and contributes significantly to the project's overall resource base. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Measured Resource Evidence · table > 0.56 Context: 174,942 #### Tags used in scoring **Measured Resource** Polarity: positive Definition: Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves. Why it applies: category is "measured" **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 ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-24) Mantoverde · gold #### Identity - Project: Mantoverde - Commodity: gold - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:551b168f2921fb2b6d81 - Material type: Sulphides \(Flotation\) #### Resource Data - Category: measured - Tonnes: 174942000 - Grade: 0.1 - Grade Unit: g/t - Contained Metal: 588 - Contained Unit: koz - Cutoff Grade: 0.2 - Cutoff Unit: % TCu #### Prior Estimate - Resource Date: 2025-12-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This Measured resource for gold in Mantoverde Sulphides \(Flotation\) provides high confidence and contributes to the project's overall resource base. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Measured Resource Evidence · table > 0.10 Context: 174,942 #### Tags used in scoring **Measured Resource** Polarity: positive Definition: Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves. Why it applies: category is "measured" **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 ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-25) Mantoverde · cobalt #### Identity - Project: Mantoverde - Commodity: cobalt - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:551b168f2921fb2b6d81 - Material type: Sulphides \(Flotation\) #### Resource Data - Category: measured - Tonnes: 174942000 - Grade: 178 - Grade Unit: ppm - Contained Metal: 31 - Contained Unit: kt - Cutoff Grade: 0.2 - Cutoff Unit: % TCu #### Prior Estimate - Resource Date: 2025-12-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This Measured resource for cobalt in Mantoverde Sulphides \(Flotation\) provides high confidence and contributes to the project's overall resource base. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Measured Resource Evidence · table > 178 Context: 174,942 #### Tags used in scoring **Measured Resource** Polarity: positive Definition: Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves. Why it applies: category is "measured" **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 ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-26) Mantoverde · copper #### Identity - Project: Mantoverde - Commodity: copper - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:f0511f62c43ef5d59d48 - Material type: Sulphides \(Flotation\) #### Resource Data - Category: indicated - Tonnes: 320165000 - Grade: 0.41 - Grade Unit: % - Contained Metal: 1308 - Contained Unit: kt - Cutoff Grade: 0.2 - Cutoff Unit: % TCu #### Prior Estimate - Resource Date: 2025-12-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This Indicated resource for copper in Mantoverde Sulphides \(Flotation\) provides good confidence and significantly contributes to the project's overall resource base. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Indicated Resource Evidence · table > 0.41 Context: 320,165 #### 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 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 ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-27) Mantoverde · gold #### Identity - Project: Mantoverde - Commodity: gold - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:f0511f62c43ef5d59d48 - Material type: Sulphides \(Flotation\) #### Resource Data - Category: indicated - Tonnes: 320165000 - Grade: 0.1 - Grade Unit: g/t - Contained Metal: 1035 - Contained Unit: koz - Cutoff Grade: 0.2 - Cutoff Unit: % TCu #### Prior Estimate - Resource Date: 2025-12-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This Indicated resource for gold in Mantoverde Sulphides \(Flotation\) provides good confidence and contributes to the project's overall resource base. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Indicated Resource Evidence · table > 0.10 Context: 320,165 #### 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 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 ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-28) Mantoverde · cobalt #### Identity - Project: Mantoverde - Commodity: cobalt - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:f0511f62c43ef5d59d48 - Material type: Sulphides \(Flotation\) #### Resource Data - Category: indicated - Tonnes: 320165000 - Grade: 115 - Grade Unit: ppm - Contained Metal: 37 - Contained Unit: kt - Cutoff Grade: 0.2 - Cutoff Unit: % TCu #### Prior Estimate - Resource Date: 2025-12-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This Indicated resource for cobalt in Mantoverde Sulphides \(Flotation\) provides good confidence and contributes to the project's overall resource base. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Indicated Resource Evidence · table > 115 Context: 320,165 #### 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 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 ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-29) Mantoverde · copper #### Identity - Project: Mantoverde - Commodity: copper - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:ea30a98862b681fc50a9 - Material type: Sulphides \(Flotation\) #### Resource Data - Category: indicated - Tonnes: 495107000 - Grade: 0.46 - Grade Unit: % - Contained Metal: 2296 - Contained Unit: kt - Cutoff Grade: 0.2 - Cutoff Unit: % TCu #### Prior Estimate - Resource Date: 2025-12-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This combined Measured and Indicated resource for copper in Mantoverde Sulphides \(Flotation\) represents a substantial and well-defined portion of the project's mineral inventory. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Indicated Resource Evidence · table > 0.46 Context: 495,107 #### 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 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 ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-30) Mantoverde · gold #### Identity - Project: Mantoverde - Commodity: gold - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:ea30a98862b681fc50a9 - Material type: Sulphides \(Flotation\) #### Resource Data - Category: indicated - Tonnes: 495107000 - Grade: 0.1 - Grade Unit: g/t - Contained Metal: 1623 - Contained Unit: koz - Cutoff Grade: 0.2 - Cutoff Unit: % TCu #### Prior Estimate - Resource Date: 2025-12-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This combined Measured and Indicated resource for gold in Mantoverde Sulphides \(Flotation\) represents a substantial and well-defined portion of the project's mineral inventory. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Indicated Resource Evidence · table > 0.10 Context: 495,107 #### 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 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 ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-31) Mantoverde · cobalt #### Identity - Project: Mantoverde - Commodity: cobalt - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:ea30a98862b681fc50a9 - Material type: Sulphides \(Flotation\) #### Resource Data - Category: indicated - Tonnes: 495107000 - Grade: 137 - Grade Unit: ppm - Contained Metal: 68 - Contained Unit: kt - Cutoff Grade: 0.2 - Cutoff Unit: % TCu #### Prior Estimate - Resource Date: 2025-12-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This combined Measured and Indicated resource for cobalt in Mantoverde Sulphides \(Flotation\) represents a substantial and well-defined portion of the project's mineral inventory. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Indicated Resource Evidence · table > 137 Context: 495,107 #### 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 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/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-32) Mantoverde · copper #### Identity - Project: Mantoverde - Commodity: copper - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:4302325a96eb27d08254 - Material type: Sulphides \(Flotation\) #### Resource Data - Category: inferred - Tonnes: 550089000 - Grade: 0.37 - Grade Unit: % - Contained Metal: 2035 - Contained Unit: kt - Cutoff Grade: 0.2 - Cutoff Unit: % TCu #### Prior Estimate - Resource Date: 2025-12-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This Inferred resource for copper in Mantoverde Sulphides \(Flotation\) adds to the project's overall mineral inventory but has lower geological confidence. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Negative factor: Inferred Resource Evidence · table > 0.37 Context: 550,089 #### 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/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-33) Mantoverde · gold #### Identity - Project: Mantoverde - Commodity: gold - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:4302325a96eb27d08254 - Material type: Sulphides \(Flotation\) #### Resource Data - Category: inferred - Tonnes: 550089000 - Grade: 0.08 - Grade Unit: g/t - Contained Metal: 1416 - Contained Unit: koz - Cutoff Grade: 0.2 - Cutoff Unit: % TCu #### Prior Estimate - Resource Date: 2025-12-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This Inferred resource for gold in Mantoverde Sulphides \(Flotation\) adds to the project's overall mineral inventory but has lower geological confidence. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Negative factor: Inferred Resource Evidence · table > 0.08 Context: 550,089 #### 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/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-34) Mantoverde · cobalt #### Identity - Project: Mantoverde - Commodity: cobalt - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:4302325a96eb27d08254 - Material type: Sulphides \(Flotation\) #### Resource Data - Category: inferred - Tonnes: 550089000 - Grade: 33 - Grade Unit: ppm - Contained Metal: 18 - Contained Unit: kt - Cutoff Grade: 0.2 - Cutoff Unit: % TCu #### Prior Estimate - Resource Date: 2025-12-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This Inferred resource for cobalt in Mantoverde Sulphides \(Flotation\) adds to the project's overall mineral inventory but has lower geological confidence. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Negative factor: Inferred Resource Evidence · table > 33 Context: 550,089 #### 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 ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-35) Mantoverde · copper #### Identity - Project: Mantoverde - Commodity: copper - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:4fcae72405cadbadcdd6 - Material type: mixed #### Resource Data - Category: measured - Tonnes: 33048000 - Grade: 0.44 - Grade Unit: % - Contained Metal: 145 - Contained Unit: kt - Cutoff Grade: 0.2 - Cutoff Unit: % TCu #### Prior Estimate - Resource Date: 2025-12-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This Measured resource for copper in Mantoverde Sulphides Mixed \(Flotation\) provides high confidence and contributes significantly to the project's overall resource base. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Measured Resource Evidence · table > 0.44 Context: 33,048 #### Tags used in scoring **Measured Resource** Polarity: positive Definition: Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves. Why it applies: category is "measured" **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 ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-36) Mantoverde · gold #### Identity - Project: Mantoverde - Commodity: gold - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:4fcae72405cadbadcdd6 - Material type: mixed #### Resource Data - Category: measured - Tonnes: 33048000 - Grade: 0.09 - Grade Unit: g/t - Contained Metal: 92 - Contained Unit: koz - Cutoff Grade: 0.2 - Cutoff Unit: % TCu #### Prior Estimate - Resource Date: 2025-12-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This Measured resource for gold in Mantoverde Sulphides Mixed \(Flotation\) provides high confidence and contributes to the project's overall resource base. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Measured Resource Evidence · table > 0.09 Context: 33,048 #### Tags used in scoring **Measured Resource** Polarity: positive Definition: Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves. Why it applies: category is "measured" **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 ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-37) Mantoverde · cobalt #### Identity - Project: Mantoverde - Commodity: cobalt - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:4fcae72405cadbadcdd6 - Material type: mixed #### Resource Data - Category: measured - Tonnes: 33048000 - Grade: 76 - Grade Unit: ppm - Contained Metal: 3 - Contained Unit: kt - Cutoff Grade: 0.2 - Cutoff Unit: % TCu #### Prior Estimate - Resource Date: 2025-12-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This Measured resource for cobalt in Mantoverde Sulphides Mixed \(Flotation\) provides high confidence and contributes to the project's overall resource base. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Measured Resource Evidence · table > 76 Context: 33,048 #### Tags used in scoring **Measured Resource** Polarity: positive Definition: Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves. Why it applies: category is "measured" **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 ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-38) Mantoverde · copper #### Identity - Project: Mantoverde - Commodity: copper - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:9f316c28f7d7d14b912b - Material type: mixed #### Resource Data - Category: indicated - Tonnes: 35335000 - Grade: 0.35 - Grade Unit: % - Contained Metal: 124 - Contained Unit: kt - Cutoff Grade: 0.2 - Cutoff Unit: % TCu #### Prior Estimate - Resource Date: 2025-12-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This Indicated resource for copper in Mantoverde Sulphides Mixed \(Flotation\) provides good confidence and contributes significantly to the project's overall resource base. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Indicated Resource Evidence · table > 0.35 Context: 35,335 #### 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 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 ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-39) Mantoverde · gold #### Identity - Project: Mantoverde - Commodity: gold - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:9f316c28f7d7d14b912b - Material type: mixed #### Resource Data - Category: indicated - Tonnes: 35335000 - Grade: 0.08 - Grade Unit: g/t - Contained Metal: 96 - Contained Unit: koz - Cutoff Grade: 0.2 - Cutoff Unit: % TCu #### Prior Estimate - Resource Date: 2025-12-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This Indicated resource for gold in Mantoverde Sulphides Mixed \(Flotation\) provides good confidence and contributes to the project's overall resource base. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Indicated Resource Evidence · table > 0.08 Context: 35,335 #### 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 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 ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-40) Mantoverde · cobalt #### Identity - Project: Mantoverde - Commodity: cobalt - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:9f316c28f7d7d14b912b - Material type: mixed #### Resource Data - Category: indicated - Tonnes: 35335000 - Grade: 90 - Grade Unit: ppm - Contained Metal: 3 - Contained Unit: kt - Cutoff Grade: 0.2 - Cutoff Unit: % TCu #### Prior Estimate - Resource Date: 2025-12-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This Indicated resource for cobalt in Mantoverde Sulphides Mixed \(Flotation\) provides good confidence and contributes to the project's overall resource base. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Indicated Resource Evidence · table > 90 Context: 35,335 #### 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 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 ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-41) Mantoverde · copper #### Identity - Project: Mantoverde - Commodity: copper - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:9d4f72d14eb5eaea9390 - Material type: mixed #### Resource Data - Category: indicated - Tonnes: 68383000 - Grade: 0.39 - Grade Unit: % - Contained Metal: 269 - Contained Unit: kt - Cutoff Grade: 0.2 - Cutoff Unit: % TCu #### Prior Estimate - Resource Date: 2025-12-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This combined Measured and Indicated resource for copper in Mantoverde Sulphides Mixed \(Flotation\) represents a substantial and well-defined portion of the project's mineral inventory. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Indicated Resource Evidence · table > 0.39 Context: 68,383 #### 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 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 ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-42) Mantoverde · gold #### Identity - Project: Mantoverde - Commodity: gold - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:9d4f72d14eb5eaea9390 - Material type: mixed #### Resource Data - Category: indicated - Tonnes: 68383000 - Grade: 0.08 - Grade Unit: g/t - Contained Metal: 188 - Contained Unit: koz - Cutoff Grade: 0.2 - Cutoff Unit: % TCu #### Prior Estimate - Resource Date: 2025-12-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This combined Measured and Indicated resource for gold in Mantoverde Sulphides Mixed \(Flotation\) represents a substantial and well-defined portion of the project's mineral inventory. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Indicated Resource Evidence · table > 0.08 Context: 68,383 #### 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 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 ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-43) Mantoverde · cobalt #### Identity - Project: Mantoverde - Commodity: cobalt - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:9d4f72d14eb5eaea9390 - Material type: mixed #### Resource Data - Category: indicated - Tonnes: 68383000 - Grade: 83 - Grade Unit: ppm - Contained Metal: 6 - Contained Unit: kt - Cutoff Grade: 0.2 - Cutoff Unit: % TCu #### Prior Estimate - Resource Date: 2025-12-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This combined Measured and Indicated resource for cobalt in Mantoverde Sulphides Mixed \(Flotation\) represents a substantial and well-defined portion of the project's mineral inventory. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Indicated Resource Evidence · table > 83 Context: 68,383 #### 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 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/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-44) Mantoverde · copper #### Identity - Project: Mantoverde - Commodity: copper - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:c79390ee841f5ff34b28 - Material type: mixed #### Resource Data - Category: inferred - Tonnes: 19801000 - Grade: 0.29 - Grade Unit: % - Contained Metal: 57 - Contained Unit: kt - Cutoff Grade: 0.2 - Cutoff Unit: % TCu #### Prior Estimate - Resource Date: 2025-12-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This Inferred resource for copper in Mantoverde Sulphides Mixed \(Flotation\) adds to the project's overall mineral inventory but has lower geological confidence. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Negative factor: Inferred Resource Evidence · table > 0.29 Context: 19,801 #### 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/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-45) Mantoverde · gold #### Identity - Project: Mantoverde - Commodity: gold - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:c79390ee841f5ff34b28 - Material type: mixed #### Resource Data - Category: inferred - Tonnes: 19801000 - Grade: 0.07 - Grade Unit: g/t - Contained Metal: 42 - Contained Unit: koz - Cutoff Grade: 0.2 - Cutoff Unit: % TCu #### Prior Estimate - Resource Date: 2025-12-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This Inferred resource for gold in Mantoverde Sulphides Mixed \(Flotation\) adds to the project's overall mineral inventory but has lower geological confidence. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Negative factor: Inferred Resource Evidence · table > 0.07 Context: 19,801 #### 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/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-46) Mantoverde · cobalt #### Identity - Project: Mantoverde - Commodity: cobalt - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:c79390ee841f5ff34b28 - Material type: mixed #### Resource Data - Category: inferred - Tonnes: 19801000 - Grade: 14 - Grade Unit: ppm - Contained Metal: 1 - Contained Unit: kt - Cutoff Grade: 0.2 - Cutoff Unit: % TCu #### Prior Estimate - Resource Date: 2025-12-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This Inferred resource for cobalt in Mantoverde Sulphides Mixed \(Flotation\) adds to the project's overall mineral inventory but has lower geological confidence. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Negative factor: Inferred Resource Evidence · table > 14 Context: 19,801 #### 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 ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-47) Mantoverde · copper #### Identity - Project: Mantoverde - Commodity: copper - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:20e924caa35b5f88c03f - Material type: mixed #### Resource Data - Category: measured - Tonnes: 87076000 - Grade: 0.43 - Grade Unit: % - Contained Metal: 283 - Contained Unit: kt - Cutoff Grade: 0.2 - Cutoff Unit: % SCu #### Prior Estimate - Resource Date: 2025-12-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This Measured resource for copper in Mantoverde Oxides + Mixed \(Heap Leach\) provides high confidence and contributes significantly to the project's overall resource base. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Measured Resource Evidence · table > 0.43 Context: 87,076 #### Tags used in scoring **Measured Resource** Polarity: positive Definition: Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves. Why it applies: category is "measured" **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 ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-48) Mantoverde · copper #### Identity - Project: Mantoverde - Commodity: copper - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:4f51addbd3dbd916d9f7 - Material type: mixed #### Resource Data - Category: indicated - Tonnes: 53909000 - Grade: 0.39 - Grade Unit: % - Contained Metal: 161 - Contained Unit: kt - Cutoff Grade: 0.2 - Cutoff Unit: % SCu #### Prior Estimate - Resource Date: 2025-12-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This Indicated resource for copper in Mantoverde Oxides + Mixed \(Heap Leach\) provides good confidence and contributes significantly to the project's overall resource base. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Indicated Resource Evidence · table > 0.39 Context: 53,909 #### 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 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 ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-49) Mantoverde · copper #### Identity - Project: Mantoverde - Commodity: copper - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:082504919d307a86af3b - Material type: mixed #### Resource Data - Category: indicated - Tonnes: 140985000 - Grade: 0.41 - Grade Unit: % - Contained Metal: 444 - Contained Unit: kt - Cutoff Grade: 0.2 - Cutoff Unit: % SCu #### Prior Estimate - Resource Date: 2025-12-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This combined Measured and Indicated resource for copper in Mantoverde Oxides + Mixed \(Heap Leach\) represents a substantial and well-defined portion of the project's mineral inventory. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Indicated Resource Evidence · table > 0.41 Context: 140,985 #### 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 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/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-50) Mantoverde · copper #### Identity - Project: Mantoverde - Commodity: copper - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:27592fe94b5f93949c83 - Material type: mixed #### Resource Data - Category: inferred - Tonnes: 8111000 - Grade: 0.38 - Grade Unit: % - Contained Metal: 23 - Contained Unit: kt - Cutoff Grade: 0.2 - Cutoff Unit: % SCu #### Prior Estimate - Resource Date: 2025-12-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This Inferred resource for copper in Mantoverde Oxides + Mixed \(Heap Leach\) adds to the project's overall mineral inventory but has lower geological confidence. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Negative factor: Inferred Resource Evidence · table > 0.38 Context: 8,111 #### 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 ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-51) Mantoverde · copper #### Identity - Project: Mantoverde - Commodity: copper - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:a1ffb554b4d78531aff4 - Material type: mixed #### Resource Data - Category: measured - Tonnes: 144629000 - Grade: 0.22 - Grade Unit: % - Contained Metal: 210 - Contained Unit: kt - Cutoff Grade: 0.1 - Cutoff Unit: % SCu #### Prior Estimate - Resource Date: 2025-12-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This Measured resource for copper in Mantoverde Oxides + Mixed \(Dump Leach\) provides high confidence and contributes significantly to the project's overall resource base. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Measured Resource Evidence · table > 0.22 Context: 144,629 #### Tags used in scoring **Measured Resource** Polarity: positive Definition: Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves. Why it applies: category is "measured" **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 ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-52) Mantoverde · copper #### Identity - Project: Mantoverde - Commodity: copper - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:0eece69d7b3504706b23 - Material type: mixed #### Resource Data - Category: indicated - Tonnes: 140518000 - Grade: 0.21 - Grade Unit: % - Contained Metal: 199 - Contained Unit: kt - Cutoff Grade: 0.1 - Cutoff Unit: % SCu #### Prior Estimate - Resource Date: 2025-12-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This Indicated resource for copper in Mantoverde Oxides + Mixed \(Dump Leach\) provides good confidence and contributes significantly to the project's overall resource base. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Indicated Resource Evidence · table > 0.21 Context: 140,518 #### 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 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 ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-53) Mantoverde · copper #### Identity - Project: Mantoverde - Commodity: copper - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:230442d1f85b397ec443 - Material type: mixed #### Resource Data - Category: indicated - Tonnes: 285147000 - Grade: 0.22 - Grade Unit: % - Contained Metal: 409 - Contained Unit: kt - Cutoff Grade: 0.1 - Cutoff Unit: % SCu #### Prior Estimate - Resource Date: 2025-12-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This combined Measured and Indicated resource for copper in Mantoverde Oxides + Mixed \(Dump Leach\) represents a substantial and well-defined portion of the project's mineral inventory. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Indicated Resource Evidence · table > 0.22 Context: 285,147 #### 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 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/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-54) Mantoverde · copper #### Identity - Project: Mantoverde - Commodity: copper - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:5f58940f86416c264bc7 - Material type: mixed #### Resource Data - Category: inferred - Tonnes: 59985000 - Grade: 0.22 - Grade Unit: % - Contained Metal: 80 - Contained Unit: kt - Cutoff Grade: 0.1 - Cutoff Unit: % SCu #### Prior Estimate - Resource Date: 2025-12-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This Inferred resource for copper in Mantoverde Oxides + Mixed \(Dump Leach\) adds to the project's overall mineral inventory but has lower geological confidence. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Negative factor: Inferred Resource Evidence · table > 0.22 Context: 59,985 #### 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 ### proven [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-55) Santo Domingo · copper #### Identity - Project: Santo Domingo - Commodity: copper - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: reserve - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:c790d06636004cd2dfa4 #### Resource Data - Category: proven - Tonnes: 130945000 - Grade: 0.52 - Grade Unit: % - Contained Metal: 675 - Contained Unit: kt #### Prior Estimate - Resource Date: 2024-03-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This Proven Reserve for copper at Santo Domingo represents a high-confidence, economically viable portion of the project. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Proven Reserve Evidence · table > 0.52 Context: 130,945 #### Tags used in scoring **Proven Reserve** Polarity: positive Definition: Measured Resource with demonstrated economic viability after applying modifying factors. Why it applies: category is "proven" **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 **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 **Stale Estimate** Polarity: negative Definition: Effective date is >2 years old — data currency concern, may not reflect current geological understanding. Why it applies: effective date is 2.4 years before this release ### proven [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-56) Santo Domingo · gold #### Identity - Project: Santo Domingo - Commodity: gold - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: reserve - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:c790d06636004cd2dfa4 #### Resource Data - Category: proven - Tonnes: 130945000 - Grade: 0.07 - Grade Unit: g/t - Contained Metal: 291 - Contained Unit: koz #### Prior Estimate - Resource Date: 2024-03-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This Proven Reserve for gold at Santo Domingo represents a high-confidence, economically viable portion of the project. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Proven Reserve Evidence · table > 0.07 Context: 130,945 #### Tags used in scoring **Proven Reserve** Polarity: positive Definition: Measured Resource with demonstrated economic viability after applying modifying factors. Why it applies: category is "proven" **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 **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 **Stale Estimate** Polarity: negative Definition: Effective date is >2 years old — data currency concern, may not reflect current geological understanding. Why it applies: effective date is 2.4 years before this release ### proven [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-57) Santo Domingo · iron\_ore #### Identity - Project: Santo Domingo - Commodity: iron\_ore - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: reserve - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:c790d06636004cd2dfa4 #### Resource Data - Category: proven - Tonnes: 130945000 - Grade: 27.2 - Grade Unit: % - Contained Metal: 13 - Contained Unit: mt #### Prior Estimate - Resource Date: 2024-03-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This Proven Reserve for iron at Santo Domingo represents a high-confidence, economically viable portion of the project. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Proven Reserve Evidence · table > 27.2 Context: 130,945 #### Tags used in scoring **Proven Reserve** Polarity: positive Definition: Measured Resource with demonstrated economic viability after applying modifying factors. Why it applies: category is "proven" **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 **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 **Stale Estimate** Polarity: negative Definition: Effective date is >2 years old — data currency concern, may not reflect current geological understanding. Why it applies: effective date is 2.4 years before this release ### probable [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-58) Santo Domingo · copper #### Identity - Project: Santo Domingo - Commodity: copper - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: reserve - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:a8db98180c463479e5df #### Resource Data - Category: probable - Tonnes: 305111000 - Grade: 0.25 - Grade Unit: % - Contained Metal: 761 - Contained Unit: kt #### Prior Estimate - Resource Date: 2024-03-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This Probable Reserve for copper at Santo Domingo represents an economically viable portion of the project with good confidence. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Probable Reserve Evidence · table > 0.25 Context: 305,111 #### Tags used in scoring **Probable Reserve** Polarity: positive Definition: Indicated Resource with demonstrated economic viability after applying modifying factors. Why it applies: category is "probable" **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 **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 **Stale Estimate** Polarity: negative Definition: Effective date is >2 years old — data currency concern, may not reflect current geological understanding. Why it applies: effective date is 2.4 years before this release ### probable [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-59) Santo Domingo · gold #### Identity - Project: Santo Domingo - Commodity: gold - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: reserve - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:a8db98180c463479e5df #### Resource Data - Category: probable - Tonnes: 305111000 - Grade: 0.04 - Grade Unit: g/t - Contained Metal: 346 - Contained Unit: koz #### Prior Estimate - Resource Date: 2024-03-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This Probable Reserve for gold at Santo Domingo represents an economically viable portion of the project with good confidence. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Probable Reserve Evidence · table > 0.04 Context: 305,111 #### Tags used in scoring **Probable Reserve** Polarity: positive Definition: Indicated Resource with demonstrated economic viability after applying modifying factors. Why it applies: category is "probable" **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 **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 **Stale Estimate** Polarity: negative Definition: Effective date is >2 years old — data currency concern, may not reflect current geological understanding. Why it applies: effective date is 2.4 years before this release ### probable [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-60) Santo Domingo · iron\_ore #### Identity - Project: Santo Domingo - Commodity: iron\_ore - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: reserve - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:a8db98180c463479e5df #### Resource Data - Category: probable - Tonnes: 305111000 - Grade: 26.2 - Grade Unit: % - Contained Metal: 56 - Contained Unit: mt #### Prior Estimate - Resource Date: 2024-03-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This Probable Reserve for iron at Santo Domingo represents an economically viable portion of the project with good confidence. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Probable Reserve Evidence · table > 26.2 Context: 305,111 #### Tags used in scoring **Probable Reserve** Polarity: positive Definition: Indicated Resource with demonstrated economic viability after applying modifying factors. Why it applies: category is "probable" **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 **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 **Stale Estimate** Polarity: negative Definition: Effective date is >2 years old — data currency concern, may not reflect current geological understanding. Why it applies: effective date is 2.4 years before this release ### probable [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-61) Santo Domingo · copper #### Identity - Project: Santo Domingo - Commodity: copper - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: reserve - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:39b0c195c191b1f072b8 #### Resource Data - Category: probable - Tonnes: 436056000 - Grade: 0.33 - Grade Unit: % - Contained Metal: 1435 - Contained Unit: kt #### Prior Estimate - Resource Date: 2024-03-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This total Proven and Probable Reserve for copper at Santo Domingo represents a substantial and economically viable portion of the project. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Probable Reserve Evidence · table > 0.33 Context: 436,056 #### Tags used in scoring **Probable Reserve** Polarity: positive Definition: Indicated Resource with demonstrated economic viability after applying modifying factors. Why it applies: category is "probable" **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 **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 **Stale Estimate** Polarity: negative Definition: Effective date is >2 years old — data currency concern, may not reflect current geological understanding. Why it applies: effective date is 2.4 years before this release ### probable [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-62) Santo Domingo · gold #### Identity - Project: Santo Domingo - Commodity: gold - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: reserve - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:39b0c195c191b1f072b8 #### Resource Data - Category: probable - Tonnes: 436056000 - Grade: 0.05 - Grade Unit: g/t - Contained Metal: 637 - Contained Unit: koz #### Prior Estimate - Resource Date: 2024-03-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This total Proven and Probable Reserve for gold at Santo Domingo represents a substantial and economically viable portion of the project. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Probable Reserve Evidence · table > 0.05 Context: 436,056 #### Tags used in scoring **Probable Reserve** Polarity: positive Definition: Indicated Resource with demonstrated economic viability after applying modifying factors. Why it applies: category is "probable" **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 **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 **Stale Estimate** Polarity: negative Definition: Effective date is >2 years old — data currency concern, may not reflect current geological understanding. Why it applies: effective date is 2.4 years before this release ### probable [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-63) Santo Domingo · iron\_ore #### Identity - Project: Santo Domingo - Commodity: iron\_ore - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: reserve - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:39b0c195c191b1f072b8 #### Resource Data - Category: probable - Tonnes: 436056000 - Grade: 26.5 - Grade Unit: % - Contained Metal: 68 - Contained Unit: mt #### Prior Estimate - Resource Date: 2024-03-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This total Proven and Probable Reserve for iron at Santo Domingo represents a substantial and economically viable portion of the project. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Probable Reserve Evidence · table > 26.5 Context: 436,056 #### Tags used in scoring **Probable Reserve** Polarity: positive Definition: Indicated Resource with demonstrated economic viability after applying modifying factors. Why it applies: category is "probable" **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 **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 **Stale Estimate** Polarity: negative Definition: Effective date is >2 years old — data currency concern, may not reflect current geological understanding. Why it applies: effective date is 2.4 years before this release ### proven [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-64) Mantoverde · copper #### Identity - Project: Mantoverde - Commodity: copper - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: reserve - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:c51f6cbdb6d27da3cc8e - Material type: mixed #### Resource Data - Category: proven - Tonnes: 209871000 - Grade: 0.55 - Grade Unit: % - Contained Metal: 1146 - Contained Unit: kt - Cutoff Grade: 0.2 - Cutoff Unit: % TCu #### Prior Estimate - Resource Date: 2025-12-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This Proven Reserve for copper in Mantoverde Sulphides + Mixed \(Flotation\) represents a high-confidence, economically viable portion of the project. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Proven Reserve Evidence · table > 0.55 Context: 209,871 #### Tags used in scoring **Proven Reserve** Polarity: positive Definition: Measured Resource with demonstrated economic viability after applying modifying factors. Why it applies: category is "proven" **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 ### proven [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-65) Mantoverde · gold #### Identity - Project: Mantoverde - Commodity: gold - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: reserve - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:c51f6cbdb6d27da3cc8e - Material type: mixed #### Resource Data - Category: proven - Tonnes: 209871000 - Grade: 0.1 - Grade Unit: g/t - Contained Metal: 675 - Contained Unit: koz - Cutoff Grade: 0.2 - Cutoff Unit: % TCu #### Prior Estimate - Resource Date: 2025-12-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This Proven Reserve for gold in Mantoverde Sulphides + Mixed \(Flotation\) represents a high-confidence, economically viable portion of the project. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Proven Reserve Evidence · table > 0.10 Context: 209,871 #### Tags used in scoring **Proven Reserve** Polarity: positive Definition: Measured Resource with demonstrated economic viability after applying modifying factors. Why it applies: category is "proven" **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 ### probable [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-66) Mantoverde · copper #### Identity - Project: Mantoverde - Commodity: copper - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: reserve - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:c6c62f6755081849434a - Material type: mixed #### Resource Data - Category: probable - Tonnes: 174347000 - Grade: 0.39 - Grade Unit: % - Contained Metal: 686 - Contained Unit: kt - Cutoff Grade: 0.2 - Cutoff Unit: % TCu #### Prior Estimate - Resource Date: 2025-12-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This Probable Reserve for copper in Mantoverde Sulphides + Mixed \(Flotation\) represents an economically viable portion of the project with good confidence. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Probable Reserve Evidence · table > 0.39 Context: 174,347 #### Tags used in scoring **Probable Reserve** Polarity: positive Definition: Indicated Resource with demonstrated economic viability after applying modifying factors. Why it applies: category is "probable" **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 ### probable [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-67) Mantoverde · gold #### Identity - Project: Mantoverde - Commodity: gold - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: reserve - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:c6c62f6755081849434a - Material type: mixed #### Resource Data - Category: probable - Tonnes: 174347000 - Grade: 0.09 - Grade Unit: g/t - Contained Metal: 504 - Contained Unit: koz - Cutoff Grade: 0.2 - Cutoff Unit: % TCu #### Prior Estimate - Resource Date: 2025-12-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This Probable Reserve for gold in Mantoverde Sulphides + Mixed \(Flotation\) represents an economically viable portion of the project with good confidence. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Probable Reserve Evidence · table > 0.09 Context: 174,347 #### Tags used in scoring **Probable Reserve** Polarity: positive Definition: Indicated Resource with demonstrated economic viability after applying modifying factors. Why it applies: category is "probable" **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 ### probable [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-68) Mantoverde · copper #### Identity - Project: Mantoverde - Commodity: copper - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: reserve - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:9dceb5302ce76ef21b74 - Material type: mixed #### Resource Data - Category: probable - Tonnes: 384219000 - Grade: 0.48 - Grade Unit: % - Contained Metal: 1833 - Contained Unit: kt - Cutoff Grade: 0.2 - Cutoff Unit: % TCu #### Prior Estimate - Resource Date: 2025-12-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This total Proven and Probable Reserve for copper in Mantoverde Sulphides + Mixed \(Flotation\) represents a substantial and economically viable portion of the project. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Probable Reserve Evidence · table > 0.48 Context: 384,219 #### Tags used in scoring **Probable Reserve** Polarity: positive Definition: Indicated Resource with demonstrated economic viability after applying modifying factors. Why it applies: category is "probable" **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 ### probable [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-69) Mantoverde · gold #### Identity - Project: Mantoverde - Commodity: gold - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: reserve - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:9dceb5302ce76ef21b74 - Material type: mixed #### Resource Data - Category: probable - Tonnes: 384219000 - Grade: 0.1 - Grade Unit: g/t - Contained Metal: 1179 - Contained Unit: koz - Cutoff Grade: 0.2 - Cutoff Unit: % TCu #### Prior Estimate - Resource Date: 2025-12-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This total Proven and Probable Reserve for gold in Mantoverde Sulphides + Mixed \(Flotation\) represents a substantial and economically viable portion of the project. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Probable Reserve Evidence · table > 0.10 Context: 384,219 #### Tags used in scoring **Probable Reserve** Polarity: positive Definition: Indicated Resource with demonstrated economic viability after applying modifying factors. Why it applies: category is "probable" **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 ### proven [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-70) Mantoverde · copper #### Identity - Project: Mantoverde - Commodity: copper - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: reserve - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:7e5f569dcb6225686d7c - Material type: Oxides \(Dump+Heap Leach\) #### Resource Data - Category: proven - Tonnes: 125411000 - Grade: 0.21 - Grade Unit: % - Contained Metal: 259 - Contained Unit: kt - Cutoff Grade: 0.1 - Cutoff Unit: % SCu #### Prior Estimate - Resource Date: 2025-12-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This Proven Reserve for copper in Mantoverde Oxides \(Dump+Heap Leach\) represents a high-confidence, economically viable portion of the project. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Proven Reserve Evidence · table > 0.21 Context: 125,411 #### Tags used in scoring **Proven Reserve** Polarity: positive Definition: Measured Resource with demonstrated economic viability after applying modifying factors. Why it applies: category is "proven" **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 ### probable [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-71) Mantoverde · copper #### Identity - Project: Mantoverde - Commodity: copper - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: reserve - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:f5e8f5ee00a786527fa2 - Material type: Oxides \(Dump+Heap Leach\) #### Resource Data - Category: probable - Tonnes: 70356000 - Grade: 0.19 - Grade Unit: % - Contained Metal: 131 - Contained Unit: kt - Cutoff Grade: 0.1 - Cutoff Unit: % SCu #### Prior Estimate - Resource Date: 2025-12-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This Probable Reserve for copper in Mantoverde Oxides \(Dump+Heap Leach\) represents an economically viable portion of the project with good confidence. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Probable Reserve Evidence · table > 0.19 Context: 70,356 #### Tags used in scoring **Probable Reserve** Polarity: positive Definition: Indicated Resource with demonstrated economic viability after applying modifying factors. Why it applies: category is "probable" **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 ### probable [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-72) Mantoverde · copper #### Identity - Project: Mantoverde - Commodity: copper - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: reserve - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:f3421f2c54ddf7bfc368 - Material type: Oxides \(Dump+Heap Leach\) #### Resource Data - Category: probable - Tonnes: 195768000 - Grade: 0.2 - Grade Unit: % - Contained Metal: 390 - Contained Unit: kt - Cutoff Grade: 0.1 - Cutoff Unit: % SCu #### Prior Estimate - Resource Date: 2025-12-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This total Proven and Probable Reserve for copper in Mantoverde Oxides \(Dump+Heap Leach\) represents a substantial and economically viable portion of the project. - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Probable Reserve Evidence · table > 0.20 Context: 195,768 #### Tags used in scoring **Probable Reserve** Polarity: positive Definition: Indicated Resource with demonstrated economic viability after applying modifying factors. Why it applies: category is "probable" **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 ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-73) Sierra Norte · copper Historical result Needs review: historical\_restatement #### Identity - Project: Sierra Norte - Commodity: copper - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: other - QP Signed: No - Resource group id: resource:caa4ef57c5946d5aa62c - Deposit or zone: Carmen-Paulina #### Resource Data - Category: measured - Tonnes: 7500000 - Grade: 0.47 - Grade Unit: % - Contained Metal: 35.5 - Contained Unit: kt - Cutoff Grade: 0.2 - Cutoff Unit: % #### Prior Estimate - Resource Date: 2016-04-29 #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2016-04-29T00:00:00.000Z #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This is a historical and non-compliant Measured resource for copper at Carmen-Paulina, Sierra Norte, which requires further verification and cannot be relied upon as a current resource. - Negative factor: Historical Estimate Only - Negative factor: No QP/CP Disclosure Evidence · table > 0.47% Context: 7.5 #### Tags used in scoring **Measured Resource** Polarity: positive Definition: Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves. Why it applies: category is "measured" **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 **Stale Estimate** Polarity: negative Definition: Effective date is >2 years old — data currency concern, may not reflect current geological understanding. Why it applies: effective date is 10.3 years before this release ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-74) Sierra Norte · copper Historical result Needs review: historical\_restatement #### Identity - Project: Sierra Norte - Commodity: copper - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: other - QP Signed: No - Resource group id: resource:ab54f4738d3164fef898 - Deposit or zone: Carmen-Paulina #### Resource Data - Category: indicated - Tonnes: 63500000 - Grade: 0.46 - Grade Unit: % - Contained Metal: 292 - Contained Unit: kt - Cutoff Grade: 0.2 - Cutoff Unit: % #### Prior Estimate - Resource Date: 2016-04-29 #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2016-04-29T00:00:00.000Z #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This is a historical and non-compliant Indicated resource for copper at Carmen-Paulina, Sierra Norte, which requires further verification and cannot be relied upon as a current resource. - Negative factor: Historical Estimate Only - Negative factor: No QP/CP Disclosure Evidence · table > 0.46% Context: 63.5 #### 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 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 **Stale Estimate** Polarity: negative Definition: Effective date is >2 years old — data currency concern, may not reflect current geological understanding. Why it applies: effective date is 10.3 years before this release ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-75) Sierra Norte · copper Historical result Needs review: historical\_restatement #### Identity - Project: Sierra Norte - Commodity: copper - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: other - QP Signed: No - Resource group id: resource:75029d38d1c18c5319c4 - Deposit or zone: Carmen-Paulina #### Resource Data - Category: inferred - Tonnes: 25100000 - Grade: 0.4 - Grade Unit: % - Contained Metal: 101.5 - Contained Unit: kt - Cutoff Grade: 0.2 - Cutoff Unit: % #### Prior Estimate - Resource Date: 2016-04-29 #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2016-04-29T00:00:00.000Z #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This is a historical and non-compliant Inferred resource for copper at Carmen-Paulina, Sierra Norte, which requires further verification and cannot be relied upon as a current resource. - Negative factor: Historical Estimate Only - Negative factor: No QP/CP Disclosure Evidence · table > 0.40% Context: 25.1 #### 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 **Stale Estimate** Polarity: negative Definition: Effective date is >2 years old — data currency concern, may not reflect current geological understanding. Why it applies: effective date is 10.3 years before this release ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-76) Sierra Norte · copper Historical result Needs review: historical\_restatement #### Identity - Project: Sierra Norte - Commodity: copper - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: other - QP Signed: No - Resource group id: resource:5155c54b255e27ba6800 - Deposit or zone: Carmen-Paulina #### Resource Data - Category: inferred - Tonnes: 96100000 - Grade: 0.45 - Grade Unit: % - Contained Metal: 429 - Contained Unit: kt - Cutoff Grade: 0.2 - Cutoff Unit: % #### Prior Estimate - Resource Date: 2016-04-29 #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2016-04-29T00:00:00.000Z #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This is the total historical and non-compliant resource for copper at Carmen-Paulina, Sierra Norte, which requires further verification and cannot be relied upon as a current resource. - Negative factor: Historical Estimate Only - Negative factor: No QP/CP Disclosure Evidence · table > 0.45% Context: 96.1 #### 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 **Stale Estimate** Polarity: negative Definition: Effective date is >2 years old — data currency concern, may not reflect current geological understanding. Why it applies: effective date is 10.3 years before this release ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-77) Sierra Norte · copper Historical result Needs review: historical\_restatement #### Identity - Project: Sierra Norte - Commodity: copper - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: other - QP Signed: No - Resource group id: resource:3fa1e15c9a0392c8870f - Deposit or zone: Esther #### Resource Data - Category: measured - Tonnes: 700000 - Grade: 0.42 - Grade Unit: % - Contained Metal: 3 - Contained Unit: kt - Cutoff Grade: 0.2 - Cutoff Unit: % #### Prior Estimate - Resource Date: 2016-04-29 #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2016-04-29T00:00:00.000Z #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This is a historical and non-compliant Measured resource for copper at Esther, Sierra Norte, which requires further verification and cannot be relied upon as a current resource. - Negative factor: Historical Estimate Only - Negative factor: No QP/CP Disclosure Evidence · table > 0.42% Context: 0.7 #### Tags used in scoring **Measured Resource** Polarity: positive Definition: Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves. Why it applies: category is "measured" **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 **Stale Estimate** Polarity: negative Definition: Effective date is >2 years old — data currency concern, may not reflect current geological understanding. Why it applies: effective date is 10.3 years before this release ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-78) Sierra Norte · copper Historical result Needs review: historical\_restatement #### Identity - Project: Sierra Norte - Commodity: copper - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: other - QP Signed: No - Resource group id: resource:030178c73308ed316e24 - Deposit or zone: Esther #### Resource Data - Category: indicated - Tonnes: 3300000 - Grade: 0.4 - Grade Unit: % - Contained Metal: 13.3 - Contained Unit: kt - Cutoff Grade: 0.2 - Cutoff Unit: % #### Prior Estimate - Resource Date: 2016-04-29 #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2016-04-29T00:00:00.000Z #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This is a historical and non-compliant Indicated resource for copper at Esther, Sierra Norte, which requires further verification and cannot be relied upon as a current resource. - Negative factor: Historical Estimate Only - Negative factor: No QP/CP Disclosure Evidence · table > 0.40% Context: 3.3 #### 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 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 **Stale Estimate** Polarity: negative Definition: Effective date is >2 years old — data currency concern, may not reflect current geological understanding. Why it applies: effective date is 10.3 years before this release ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-79) Sierra Norte · copper Historical result Needs review: historical\_restatement #### Identity - Project: Sierra Norte - Commodity: copper - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: other - QP Signed: No - Resource group id: resource:e7fecbd0ce1ca4d3fdfd - Deposit or zone: Esther #### Resource Data - Category: inferred - Tonnes: 100000 - Grade: 0.35 - Grade Unit: % - Contained Metal: 0.3 - Contained Unit: kt - Cutoff Grade: 0.2 - Cutoff Unit: % #### Prior Estimate - Resource Date: 2016-04-29 #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2016-04-29T00:00:00.000Z #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This is a historical and non-compliant Inferred resource for copper at Esther, Sierra Norte, which requires further verification and cannot be relied upon as a current resource. - Negative factor: Historical Estimate Only - Negative factor: No QP/CP Disclosure Evidence · table > 0.35% Context: 0.1 #### 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 **Stale Estimate** Polarity: negative Definition: Effective date is >2 years old — data currency concern, may not reflect current geological understanding. Why it applies: effective date is 10.3 years before this release ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-80) Sierra Norte · copper Historical result Needs review: historical\_restatement #### Identity - Project: Sierra Norte - Commodity: copper - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: other - QP Signed: No - Resource group id: resource:5dced116330c1803e722 - Deposit or zone: Esther #### Resource Data - Category: inferred - Tonnes: 4100000 - Grade: 0.4 - Grade Unit: % - Contained Metal: 16.6 - Contained Unit: kt - Cutoff Grade: 0.2 - Cutoff Unit: % #### Prior Estimate - Resource Date: 2016-04-29 #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2016-04-29T00:00:00.000Z #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This is the total historical and non-compliant resource for copper at Esther, Sierra Norte, which requires further verification and cannot be relied upon as a current resource. - Negative factor: Historical Estimate Only - Negative factor: No QP/CP Disclosure Evidence · table > 0.40% Context: 4.1 #### 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 **Stale Estimate** Polarity: negative Definition: Effective date is >2 years old — data currency concern, may not reflect current geological understanding. Why it applies: effective date is 10.3 years before this release ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-81) San Pietro · iron\_ore #### Identity - Project: San Pietro - Commodity: iron\_ore - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Dr. Bruce David, Susan Lomas - Resource group id: resource:1cde1b340185e1e4ec13 - Material type: oxide #### Resource Data - Category: inferred - Tonnes: 83000000 - Grade: 27 - Grade Unit: blb - Cutoff Grade: 0.3 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2025-01-24 #### Metal Equivalent - Assumptions Disclosed: No #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This is a maiden Inferred resource for copper in the oxide zone of the newly acquired San Pietro project, contributing to the overall mineral inventory, though its confidence level is low. \(Expanded from multi-commodity resource table for completeness.\) - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Maiden Resource - Negative factor: All Inferred Evidence · table > 27 Context: 83 #### 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 **No Contained Metal** Polarity: negative Definition: Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting. Why it applies: contained\_metal was not reported ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-82) San Pietro · iron\_ore #### Identity - Project: San Pietro - Commodity: iron\_ore - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Dr. Bruce David, Susan Lomas - Resource group id: resource:f4a6be602ba86ef8169c - Material type: sulphide #### Resource Data - Category: inferred - Tonnes: 410000000 - Grade: 130 - Grade Unit: blb - Cutoff Grade: 0.3 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2025-01-24 #### Metal Equivalent - Assumptions Disclosed: No #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This is a maiden Inferred resource for copper in the sulphide zone of the newly acquired San Pietro project, contributing significantly to the overall mineral inventory, though its confidence level is low. \(Expanded from multi-commodity resource table for completeness.\) - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Maiden Resource - Negative factor: All Inferred Evidence · table > 130 Context: 410 #### 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 **No Contained Metal** Polarity: negative Definition: Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting. Why it applies: contained\_metal was not reported ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-83) San Pietro · iron\_ore #### Identity - Project: San Pietro - Commodity: iron\_ore - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Dr. Bruce David, Susan Lomas - Resource group id: resource:a5d529f2ea5d33e965fb #### Resource Data - Category: inferred - Tonnes: 492000000 - Grade: 157 - Grade Unit: blb - Cutoff Grade: 0.3 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2025-01-24 #### Metal Equivalent - Assumptions Disclosed: No #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This is the total maiden Inferred resource for copper at the newly acquired San Pietro project, representing a significant addition to the company's mineral inventory, though its confidence level is low. \(Expanded from multi-commodity resource table for completeness.\) - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Maiden Resource - Negative factor: All Inferred Evidence · table > 157 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 **No Contained Metal** Polarity: negative Definition: Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting. Why it applies: contained\_metal was not reported ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-84) Santo Domingo · iron\_ore #### Identity - Project: Santo Domingo - Commodity: iron\_ore - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:7f65e3e4a5be173d2de5 #### Resource Data - Category: measured - Tonnes: 134000000 - Grade: 26.9 - Grade Unit: % - Cutoff Grade: 9.85 - Cutoff Unit: US$/t NSR #### Prior Estimate - Resource Date: 2024-03-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This Measured resource for copper at Santo Domingo provides high confidence and contributes significantly to the project's overall resource base. \(Expanded from multi-commodity resource table for completeness.\) - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Measured Resource Evidence · table > 26.9 Context: 134,000 #### Tags used in scoring **Measured Resource** Polarity: positive Definition: Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves. Why it applies: category is "measured" **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 **No Contained Metal** Polarity: negative Definition: Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting. Why it applies: contained\_metal was not reported **Stale Estimate** Polarity: negative Definition: Effective date is >2 years old — data currency concern, may not reflect current geological understanding. Why it applies: effective date is 2.4 years before this release ### proven [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-85) Santo Domingo · iron\_ore #### Identity - Project: Santo Domingo - Commodity: iron\_ore - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: reserve - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:c790d06636004cd2dfa4 #### Resource Data - Category: proven - Tonnes: 130945000 - Grade: 27.2 - Grade Unit: % #### Prior Estimate - Resource Date: 2024-03-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This Proven Reserve for copper at Santo Domingo represents a high-confidence, economically viable portion of the project. \(Expanded from multi-commodity resource table for completeness.\) - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Proven Reserve Evidence · table > 27.2 Context: 130,945 #### Tags used in scoring **Proven Reserve** Polarity: positive Definition: Measured Resource with demonstrated economic viability after applying modifying factors. Why it applies: category is "proven" **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 **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 **No Contained Metal** Polarity: negative Definition: Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting. Why it applies: contained\_metal was not reported **Stale Estimate** Polarity: negative Definition: Effective date is >2 years old — data currency concern, may not reflect current geological understanding. Why it applies: effective date is 2.4 years before this release ### probable [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-86) Santo Domingo · iron\_ore #### Identity - Project: Santo Domingo - Commodity: iron\_ore - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: reserve - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:a8db98180c463479e5df #### Resource Data - Category: probable - Tonnes: 305111000 - Grade: 26.2 - Grade Unit: % #### Prior Estimate - Resource Date: 2024-03-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This Probable Reserve for copper at Santo Domingo represents an economically viable portion of the project with good confidence. \(Expanded from multi-commodity resource table for completeness.\) - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Probable Reserve Evidence · table > 26.2 Context: 305,111 #### Tags used in scoring **Probable Reserve** Polarity: positive Definition: Indicated Resource with demonstrated economic viability after applying modifying factors. Why it applies: category is "probable" **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 **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 **No Contained Metal** Polarity: negative Definition: Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting. Why it applies: contained\_metal was not reported **Stale Estimate** Polarity: negative Definition: Effective date is >2 years old — data currency concern, may not reflect current geological understanding. Why it applies: effective date is 2.4 years before this release ### probable [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-87) Santo Domingo · iron\_ore #### Identity - Project: Santo Domingo - Commodity: iron\_ore - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: reserve - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:39b0c195c191b1f072b8 #### Resource Data - Category: probable - Tonnes: 436056000 - Grade: 26.5 - Grade Unit: % #### Prior Estimate - Resource Date: 2024-03-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This total Proven and Probable Reserve for copper at Santo Domingo represents a substantial and economically viable portion of the project. \(Expanded from multi-commodity resource table for completeness.\) - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Probable Reserve Evidence · table > 26.5 Context: 436,056 #### Tags used in scoring **Probable Reserve** Polarity: positive Definition: Indicated Resource with demonstrated economic viability after applying modifying factors. Why it applies: category is "probable" **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 **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 **No Contained Metal** Polarity: negative Definition: Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting. Why it applies: contained\_metal was not reported **Stale Estimate** Polarity: negative Definition: Effective date is >2 years old — data currency concern, may not reflect current geological understanding. Why it applies: effective date is 2.4 years before this release ### probable [Link to this fact](https://atlas-extractions.minestarters.com/news/capstone-copper-completes-acquisition-of-san-pietro-copper-concessions-consolida--7c317799-c789-4655-afb7-856613f437d5#fact-resource-facts-88) Mantoverde · gold #### Identity - Project: Mantoverde - Commodity: gold - Region: chile - Reported Region: Atacama Region, Chile - Ticker: CS #### Resource scope - Estimate type: reserve - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Peter Amelunxen - Resource group id: resource:341a3a70e499b7a6e78d #### Resource Data - Category: probable - Tonnes: 384219000 - Grade: 0.1 - Grade Unit: g/t - Cutoff Grade: 0.2 - Cutoff Unit: % TCu #### Prior Estimate - Resource Date: 2025-12-31 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-31T00:00:00.000Z Reasoning: This total Proven and Probable Reserve for copper in Mantoverde Sulphides + Mixed \(Flotation\) represents a substantial and economically viable portion of the project. \(Expanded from multi-commodity resource table for completeness.\) - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Probable Reserve Evidence · table > 0.10 Context: 384,219 #### Tags used in scoring **Probable Reserve** Polarity: positive Definition: Indicated Resource with demonstrated economic viability after applying modifying factors. Why it applies: category is "probable" **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 **No Contained Metal** Polarity: negative Definition: Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting. Why it applies: contained\_metal was not reported ## 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.