# Aldebaran PEA for the Altar Project Reports 48 Year Mine Life, After Tax NPV \(8%\) of US$2 Billion, and 20.5% IRR Canonical Atlas analysis: https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676 Original source: https://money.tmx.com/en/quote/ALDE/news/7800921323788034/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of Publisher: tmx Original announcement: 2025-10-30T11:00:00.000Z Analysis by Minestarters Atlas Atlas analysis published: Unknown date Atlas analysis updated: Unknown date - Company: Aldebaran Resources Inc. - Ticker: ALDE - Exchange: TSX - Region: San Juan, Argentina - Primary commodity: Copper - Secondary commodities: Gold, Silver, Molybdenum, Arsenic - Document categories: Resource update, Metallurgy, Other - Extracted: 2026-09-13 11:22:28 UTC Narrative sentiment: 0.80 · Bullish ## Minestarters Atlas summary Aldebaran Resources announced a Preliminary Economic Assessment \(PEA\) for its Altar copper-gold project in San Juan, Argentina, revealing robust economics with an after-tax NPV \(8%\) of US$2 billion and an IRR of 20.5% over a 48-year mine life. The study outlines a combined open pit and underground operation with average annual production of 101,413 tonnes copper equivalent \(CuEq\) and competitive C1 cash costs of $2.02/lb payable Cu. The PEA is based on an updated Mineral Resource Estimate, with approximately 80% of the mine plan resources categorized as Measured and Indicated, and also explores a Nuton Technology processing alternative. Reasoning: The Preliminary Economic Assessment \(PEA\) for the Altar copper-gold project demonstrates robust economics with a high NPV and IRR, supported by a long mine life and significant production. The underlying Mineral Resource Estimate \(MRE\) has a high proportion of Measured and Indicated resources. While copper recovery is strong, gold and silver recoveries are low, and arsenic in concentrate presents a potential penalty risk. - Positive factor: High after-tax NPV \(8%\) of US$2 billion and IRR of 20.5% for the project - Positive factor: Long mine life of 48 years with significant average annual production of 101,413 tonnes CuEq - Positive factor: Attractive initial capital of US$1.59 billion with a NPV/Initial Capex ratio of 1.27x - Positive factor: Competitive C1 Cash Costs of $2.02/lb payable Cu LOM and AISC of $2.59/lb payable Cu LOM - Positive factor: Combined open pit and underground operation maximizes value by pulling forward higher-grade material - Positive factor: High proportion of resources \(80%\) in the mine plan are in Measured and Indicated categories - Positive factor: Potential for Nuton Technology to reduce LOM capital and operating costs, and eliminate tailings dam - Positive factor: Copper recovery of 87.76% for the flotation circuit is strong for a porphyry deposit - Negative factor: Gold recovery of 57% and silver recovery of 50% from the flotation circuit are low - Negative factor: Arsenic is present in the concentrate \(0.5% to 2.2%\), potentially incurring penalties - Negative factor: The PEA includes Inferred Mineral Resources, which are considered speculative - Negative factor: Nuton Technology does not recover precious metals \(gold and silver\) Low confidence — this extraction should be reviewed alongside the original source. Facts used in scoring: 127 ## Classification and evidence **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 Qualified Persons for the mineral resources are John Marek RM-SME, and Jacob Richey PE, of Independent Mining Consultants, Inc. Evidence · text > The Qualified Persons for the mineral resources are John Marek RM-SME, and Jacob Richey PE, of Independent Mining Consultants, Inc. **NI 43-101 Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with NI 43-101 \(Canada\) — high reporting standard. Why it applies: The PEA was prepared in accordance with National Instrument 43-101 standards. Evidence · text > prepared in accordance with National Instrument 43-101 standards **Cut-off Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: The resource estimate uses a $13.99 NSR Cut-off \(0.24% CuEq\). Evidence · text > $13.99 NSR Cut-off \(0.24% CuEq\) **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: The Company announced an updated mineral resource estimate for the Altar project. Evidence · text > On November 25, 2024, the Company announced an updated mineral resource estimate \(“MRE”\) for the Altar project **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: The PEA is based on the updated MRE. Evidence · text > The PEA is based on the MRE **Measured Resource** Polarity: positive Definition: Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves. Why it applies: The resource estimate includes Measured category resources for various commodities. Evidence · table > Measured Context: Supergene **Indicated Resource** Polarity: positive Definition: Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves. Why it applies: The resource estimate includes Indicated category resources for various commodities. Evidence · table > Indicated Context: Supergene **Inferred Resource** Polarity: negative Definition: Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone. Why it applies: The resource estimate includes Inferred category resources for various commodities, and the PEA includes Inferred Mineral Resources that are considered too speculative geologically. Evidence · text > The PEA is preliminary in nature, as it includes Inferred Mineral Resources that are considered too speculative geologically **Deleterious Elements Present** Polarity: negative Story-specific tag Definition: A source-stated penalty, refractory or recovery concern in the fact's scope. Element detection alone, including measured elements explicitly below penalty thresholds, does not trigger this tag. Respect negation and retain a separately stated concern even when another risk is explicitly absent. Why it applies: Arsenic grades are reported in the mineral resource estimate and arsenic in the concentrate is expected to range from 0.5% to 2.2%. Evidence · text > Arsenic in the concentrate is expected to range from 0.5% to 2.2% **High Recovery** Polarity: positive Definition: Recovery at or above the exceptional band for the commodity and processing route. Why it applies: LOM Cu Recovery is 87.76% for the flotation circuit, which is strong for a porphyry deposit. Evidence · table > 87.76% Context: LOM Cu Recovery **Low Recovery** Polarity: negative Definition: Recovery below the weak band for the commodity and processing route. Why it applies: LOM Au Recovery is 57.00% and LOM Ag Recovery is 50.00% for the flotation circuit, which are weak/red flag for a porphyry deposit. Evidence · table > 57.00% Context: LOM Au Recovery **Mill Route** Polarity: neutral Definition: Processing via mill or concentrator \(CIL, CIP, tank leach, flotation\). Why it applies: The PEA envisions processing via a conventional copper flotation circuit. Evidence · text > processing via a conventional copper flotation circuit **Heap Leach Route** Polarity: neutral Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. Why it applies: The Nuton Case utilizes a bio-leach heap leaching process. Evidence · text > bio-leach heap leaching process targeting the leaching of primary and secondary copper sulfide minerals **Experimental Process** Polarity: negative Story-specific tag Definition: No canonical definition is currently available. Why it applies: Nuton Technology is described as a 'proprietary sulphide leaching technologies' and there is 'no commercial agreement' yet. Evidence · text > Nuton ® Technology, a suite of proprietary sulphide leaching technologies **Multi-Domain Tested** Polarity: positive Definition: Variability across ore domains \(oxide, transition, fresh\) has been addressed. Why it applies: 2 distinct composites were tested ## Extracted facts Stored fact records: 127. Some facts used in scoring do not have a stored record. ## Resource Estimates (124) ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-0) Altar · copper #### Identity - Project: Altar - Commodity: copper - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:26d5465a63befd667b44 - Deposit or zone: Supergene - Mining method: combined #### Resource Data - Category: measured - Tonnes: 121884000 - Grade: 0.55 - Grade Unit: % - Contained Metal: 1475 - Contained Unit: m lbs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Measured resource for copper in the Supergene zone provides high confidence and a moderate grade, contributing significantly to the project's overall resource base. - Positive factor: High confidence Measured category - Positive factor: Copper grade of 0.55% is moderate for a porphyry deposit Evidence · table > 0.55 Context: 121,884 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-1) Altar · gold #### Identity - Project: Altar - Commodity: gold - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:26d5465a63befd667b44 - Deposit or zone: Supergene - Mining method: combined #### Resource Data - Category: measured - Tonnes: 121884000 - Grade: 0.08 - Grade Unit: g/t - Contained Metal: 0.3 - Contained Unit: m ozs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: The Measured gold resource in the Supergene zone is of high confidence but the grade is relatively low for a porphyry deposit. - Positive factor: High confidence Measured category - Negative factor: Gold grade of 0.08 g/t is weak for a porphyry deposit Evidence · table > 0.08 Context: 121,884 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-2) Altar · silver #### Identity - Project: Altar - Commodity: silver - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:26d5465a63befd667b44 - Deposit or zone: Supergene - Mining method: combined #### Resource Data - Category: measured - Tonnes: 121884000 - Grade: 1.07 - Grade Unit: g/t - Contained Metal: 4.2 - Contained Unit: m ozs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: The Measured silver resource in the Supergene zone is of high confidence but the grade is relatively low for a porphyry deposit. - Positive factor: High confidence Measured category - Negative factor: Silver grade of 1.07 g/t is weak for a porphyry deposit Evidence · table > 1.07 Context: 121,884 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-3) Altar · molybdenum #### Identity - Project: Altar - Commodity: molybdenum - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:26d5465a63befd667b44 - Deposit or zone: Supergene - Mining method: combined #### Resource Data - Category: measured - Tonnes: 121884000 - Grade: 21 - Grade Unit: ppm - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: The Measured molybdenum resource in the Supergene zone is of high confidence but represents a trace element. - Positive factor: High confidence Measured category Evidence · table > 21 Context: 121,884 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-4) Altar · arsenic #### Identity - Project: Altar - Commodity: arsenic - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:26d5465a63befd667b44 - Deposit or zone: Supergene - Mining method: combined #### Resource Data - Category: measured - Tonnes: 121884000 - Grade: 289 - Grade Unit: ppm - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: The Measured arsenic resource in the Supergene zone is of high confidence but represents a deleterious element. - Positive factor: High confidence Measured category - Negative factor: Arsenic is a deleterious element that can incur penalties Evidence · table > 289 Context: 121,884 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-5) Altar · copper #### Identity - Project: Altar - Commodity: copper - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:4d0971d5fc45cf08eddd - Deposit or zone: Supergene - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 80007000 - Grade: 0.36 - Grade Unit: % - Contained Metal: 639 - Contained Unit: m lbs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Indicated resource for copper in the Supergene zone provides reasonable confidence and a moderate grade, contributing to the project's resource base. - Positive factor: Indicated category provides reasonable geological confidence - Negative factor: Copper grade of 0.36% is moderate for a porphyry deposit Evidence · table > 0.36 Context: 80,007 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-6) Altar · gold #### Identity - Project: Altar - Commodity: gold - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:4d0971d5fc45cf08eddd - Deposit or zone: Supergene - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 80007000 - Grade: 0.06 - Grade Unit: g/t - Contained Metal: 0.2 - Contained Unit: m ozs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: The Indicated gold resource in the Supergene zone is of reasonable confidence but the grade is relatively low for a porphyry deposit. - Positive factor: Indicated category provides reasonable geological confidence - Negative factor: Gold grade of 0.06 g/t is weak for a porphyry deposit Evidence · table > 0.06 Context: 80,007 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-7) Altar · silver #### Identity - Project: Altar - Commodity: silver - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:4d0971d5fc45cf08eddd - Deposit or zone: Supergene - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 80007000 - Grade: 0.93 - Grade Unit: g/t - Contained Metal: 2.4 - Contained Unit: m ozs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: The Indicated silver resource in the Supergene zone is of reasonable confidence but the grade is relatively low for a porphyry deposit. - Positive factor: Indicated category provides reasonable geological confidence - Negative factor: Silver grade of 0.93 g/t is weak for a porphyry deposit Evidence · table > 0.93 Context: 80,007 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-8) Altar · molybdenum #### Identity - Project: Altar - Commodity: molybdenum - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:4d0971d5fc45cf08eddd - Deposit or zone: Supergene - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 80007000 - Grade: 19 - Grade Unit: ppm - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: The Indicated molybdenum resource in the Supergene zone is of reasonable confidence but represents a trace element. - Positive factor: Indicated category provides reasonable geological confidence Evidence · table > 19 Context: 80,007 #### 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 **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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-9) Altar · arsenic #### Identity - Project: Altar - Commodity: arsenic - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:4d0971d5fc45cf08eddd - Deposit or zone: Supergene - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 80007000 - Grade: 123 - Grade Unit: ppm - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: The Indicated arsenic resource in the Supergene zone is of reasonable confidence but represents a deleterious element. - Positive factor: Indicated category provides reasonable geological confidence - Negative factor: Arsenic is a deleterious element that can incur penalties Evidence · table > 123 Context: 80,007 #### 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 **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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-10) Altar · copper #### Identity - Project: Altar - Commodity: copper - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:f6cb1e1160263f039a8a - Deposit or zone: Supergene - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 24850000 - Grade: 0.46 - Grade Unit: % - Contained Metal: 251 - Contained Unit: m lbs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Inferred resource for copper in the Supergene zone is speculative due to lower geological confidence, despite a moderate grade. - Negative factor: Inferred category is speculative and has lower geological confidence Evidence · table > 0.46 Context: 24,850 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-11) Altar · gold #### Identity - Project: Altar - Commodity: gold - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:f6cb1e1160263f039a8a - Deposit or zone: Supergene - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 24850000 - Grade: 0.07 - Grade Unit: g/t - Contained Metal: 0.1 - Contained Unit: m ozs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: The Inferred gold resource in the Supergene zone is speculative and has a low grade. - Negative factor: Inferred category is speculative and has lower geological confidence - Negative factor: Gold grade of 0.07 g/t is weak for a porphyry deposit Evidence · table > 0.07 Context: 24,850 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-12) Altar · silver #### Identity - Project: Altar - Commodity: silver - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:f6cb1e1160263f039a8a - Deposit or zone: Supergene - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 24850000 - Grade: 1.01 - Grade Unit: g/t - Contained Metal: 0.8 - Contained Unit: m ozs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: The Inferred silver resource in the Supergene zone is speculative and has a low grade. - Negative factor: Inferred category is speculative and has lower geological confidence - Negative factor: Silver grade of 1.01 g/t is weak for a porphyry deposit Evidence · table > 1.01 Context: 24,850 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-13) Altar · molybdenum #### Identity - Project: Altar - Commodity: molybdenum - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:f6cb1e1160263f039a8a - Deposit or zone: Supergene - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 24850000 - Grade: 19 - Grade Unit: ppm - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: The Inferred molybdenum resource in the Supergene zone is speculative and represents a trace element. - Negative factor: Inferred category is speculative and has lower geological confidence Evidence · table > 19 Context: 24,850 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-14) Altar · arsenic #### Identity - Project: Altar - Commodity: arsenic - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:f6cb1e1160263f039a8a - Deposit or zone: Supergene - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 24850000 - Grade: 213 - Grade Unit: ppm - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: The Inferred arsenic resource in the Supergene zone is speculative and represents a deleterious element. - Negative factor: Inferred category is speculative and has lower geological confidence - Negative factor: Arsenic is a deleterious element that can incur penalties Evidence · table > 213 Context: 24,850 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-15) Altar · copper #### Identity - Project: Altar - Commodity: copper - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:8056e5bf954740c52054 - Deposit or zone: Mixed - Mining method: combined #### Resource Data - Category: measured - Tonnes: 109510000 - Grade: 0.38 - Grade Unit: % - Contained Metal: 913 - Contained Unit: m lbs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Measured resource for copper in the Mixed zone provides high confidence and a moderate grade, contributing to the project's resource base. - Positive factor: High confidence Measured category - Positive factor: Copper grade of 0.38% is moderate for a porphyry deposit Evidence · table > 0.38 Context: 109,510 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-16) Altar · gold #### Identity - Project: Altar - Commodity: gold - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:8056e5bf954740c52054 - Deposit or zone: Mixed - Mining method: combined #### Resource Data - Category: measured - Tonnes: 109510000 - Grade: 0.07 - Grade Unit: g/t - Contained Metal: 0.2 - Contained Unit: m ozs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: The Measured gold resource in the Mixed zone is of high confidence but the grade is relatively low for a porphyry deposit. - Positive factor: High confidence Measured category - Negative factor: Gold grade of 0.07 g/t is weak for a porphyry deposit Evidence · table > 0.07 Context: 109,510 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-17) Altar · silver #### Identity - Project: Altar - Commodity: silver - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:8056e5bf954740c52054 - Deposit or zone: Mixed - Mining method: combined #### Resource Data - Category: measured - Tonnes: 109510000 - Grade: 1.22 - Grade Unit: g/t - Contained Metal: 4.3 - Contained Unit: m ozs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: The Measured silver resource in the Mixed zone is of high confidence but the grade is relatively low for a porphyry deposit. - Positive factor: High confidence Measured category - Negative factor: Silver grade of 1.22 g/t is weak for a porphyry deposit Evidence · table > 1.22 Context: 109,510 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-18) Altar · molybdenum #### Identity - Project: Altar - Commodity: molybdenum - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:8056e5bf954740c52054 - Deposit or zone: Mixed - Mining method: combined #### Resource Data - Category: measured - Tonnes: 109510000 - Grade: 23 - Grade Unit: ppm - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: The Measured molybdenum resource in the Mixed zone is of high confidence but represents a trace element. - Positive factor: High confidence Measured category Evidence · table > 23 Context: 109,510 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-19) Altar · arsenic #### Identity - Project: Altar - Commodity: arsenic - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:8056e5bf954740c52054 - Deposit or zone: Mixed - Mining method: combined #### Resource Data - Category: measured - Tonnes: 109510000 - Grade: 192 - Grade Unit: ppm - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: The Measured arsenic resource in the Mixed zone is of high confidence but represents a deleterious element. - Positive factor: High confidence Measured category - Negative factor: Arsenic is a deleterious element that can incur penalties Evidence · table > 192 Context: 109,510 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-20) Altar · copper #### Identity - Project: Altar - Commodity: copper - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:e85164374afd06abc688 - Deposit or zone: Mixed - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 19208000 - Grade: 0.32 - Grade Unit: % - Contained Metal: 136 - Contained Unit: m lbs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Indicated resource for copper in the Mixed zone provides reasonable confidence and a moderate grade, contributing to the project's resource base. - Positive factor: Indicated category provides reasonable geological confidence - Negative factor: Copper grade of 0.32% is moderate for a porphyry deposit Evidence · table > 0.32 Context: 19,208 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-21) Altar · gold #### Identity - Project: Altar - Commodity: gold - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:e85164374afd06abc688 - Deposit or zone: Mixed - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 19208000 - Grade: 0.06 - Grade Unit: g/t - Contained Metal: 0 - Contained Unit: m ozs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: The Indicated gold resource in the Mixed zone is of reasonable confidence but the grade is relatively low for a porphyry deposit. - Positive factor: Indicated category provides reasonable geological confidence - Negative factor: Gold grade of 0.06 g/t is weak for a porphyry deposit Evidence · table > 0.06 Context: 19,208 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-22) Altar · silver #### Identity - Project: Altar - Commodity: silver - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:e85164374afd06abc688 - Deposit or zone: Mixed - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 19208000 - Grade: 1.11 - Grade Unit: g/t - Contained Metal: 0.7 - Contained Unit: m ozs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: The Indicated silver resource in the Mixed zone is of reasonable confidence but the grade is relatively low for a porphyry deposit. - Positive factor: Indicated category provides reasonable geological confidence - Negative factor: Silver grade of 1.11 g/t is weak for a porphyry deposit Evidence · table > 1.11 Context: 19,208 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-23) Altar · molybdenum #### Identity - Project: Altar - Commodity: molybdenum - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:e85164374afd06abc688 - Deposit or zone: Mixed - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 19208000 - Grade: 23 - Grade Unit: ppm - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: The Indicated molybdenum resource in the Mixed zone is of reasonable confidence but represents a trace element. - Positive factor: Indicated category provides reasonable geological confidence Evidence · table > 23 Context: 19,208 #### 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 **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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-24) Altar · arsenic #### Identity - Project: Altar - Commodity: arsenic - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:e85164374afd06abc688 - Deposit or zone: Mixed - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 19208000 - Grade: 139 - Grade Unit: ppm - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: The Indicated arsenic resource in the Mixed zone is of reasonable confidence but represents a deleterious element. - Positive factor: Indicated category provides reasonable geological confidence - Negative factor: Arsenic is a deleterious element that can incur penalties Evidence · table > 139 Context: 19,208 #### 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 **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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-25) Altar · copper #### Identity - Project: Altar - Commodity: copper - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:5b7344d1ac2aabf24ba0 - Deposit or zone: Mixed - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 1386000 - Grade: 0.29 - Grade Unit: % - Contained Metal: 9 - Contained Unit: m lbs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Inferred resource for copper in the Mixed zone is speculative due to lower geological confidence, despite a moderate grade. - Negative factor: Inferred category is speculative and has lower geological confidence - Negative factor: Copper grade of 0.29% is moderate for a porphyry deposit Evidence · table > 0.29 Context: 1,386 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-26) Altar · gold #### Identity - Project: Altar - Commodity: gold - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:5b7344d1ac2aabf24ba0 - Deposit or zone: Mixed - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 1386000 - Grade: 0.07 - Grade Unit: g/t - Contained Metal: 0 - Contained Unit: m ozs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: The Inferred gold resource in the Mixed zone is speculative and has a low grade. - Negative factor: Inferred category is speculative and has lower geological confidence - Negative factor: Gold grade of 0.07 g/t is weak for a porphyry deposit Evidence · table > 0.07 Context: 1,386 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-27) Altar · silver #### Identity - Project: Altar - Commodity: silver - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:5b7344d1ac2aabf24ba0 - Deposit or zone: Mixed - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 1386000 - Grade: 1 - Grade Unit: g/t - Contained Metal: 0 - Contained Unit: m ozs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: The Inferred silver resource in the Mixed zone is speculative and has a low grade. - Negative factor: Inferred category is speculative and has lower geological confidence - Negative factor: Silver grade of 1.00 g/t is weak for a porphyry deposit Evidence · table > 1.00 Context: 1,386 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-28) Altar · molybdenum #### Identity - Project: Altar - Commodity: molybdenum - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:5b7344d1ac2aabf24ba0 - Deposit or zone: Mixed - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 1386000 - Grade: 13 - Grade Unit: ppm - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: The Inferred molybdenum resource in the Mixed zone is speculative and represents a trace element. - Negative factor: Inferred category is speculative and has lower geological confidence Evidence · table > 13 Context: 1,386 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-29) Altar · arsenic #### Identity - Project: Altar - Commodity: arsenic - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:5b7344d1ac2aabf24ba0 - Deposit or zone: Mixed - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 1386000 - Grade: 111 - Grade Unit: ppm - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: The Inferred arsenic resource in the Mixed zone is speculative and represents a deleterious element. - Negative factor: Inferred category is speculative and has lower geological confidence - Negative factor: Arsenic is a deleterious element that can incur penalties Evidence · table > 111 Context: 1,386 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-30) Altar · copper #### Identity - Project: Altar - Commodity: copper - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:485d56586ecba72171b0 - Deposit or zone: Hypogene - Mining method: combined #### Resource Data - Category: measured - Tonnes: 549385000 - Grade: 0.41 - Grade Unit: % - Contained Metal: 4966 - Contained Unit: m lbs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Measured resource for copper in the Hypogene zone provides high confidence and a moderate grade, contributing significantly to the project's overall resource base. - Positive factor: High confidence Measured category - Positive factor: Copper grade of 0.41% is moderate for a porphyry deposit Evidence · table > 0.41 Context: 549,385 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-31) Altar · gold #### Identity - Project: Altar - Commodity: gold - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:485d56586ecba72171b0 - Deposit or zone: Hypogene - Mining method: combined #### Resource Data - Category: measured - Tonnes: 549385000 - Grade: 0.1 - Grade Unit: g/t - Contained Metal: 1.7 - Contained Unit: m ozs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: The Measured gold resource in the Hypogene zone is of high confidence but the grade is relatively low for a porphyry deposit. - Positive factor: High confidence Measured category - Negative factor: Gold grade of 0.10 g/t is weak for a porphyry deposit Evidence · table > 0.10 Context: 549,385 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-32) Altar · silver #### Identity - Project: Altar - Commodity: silver - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:485d56586ecba72171b0 - Deposit or zone: Hypogene - Mining method: combined #### Resource Data - Category: measured - Tonnes: 549385000 - Grade: 0.98 - Grade Unit: g/t - Contained Metal: 17.3 - Contained Unit: m ozs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: The Measured silver resource in the Hypogene zone is of high confidence but the grade is relatively low for a porphyry deposit. - Positive factor: High confidence Measured category - Negative factor: Silver grade of 0.98 g/t is weak for a porphyry deposit Evidence · table > 0.98 Context: 549,385 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-33) Altar · molybdenum #### Identity - Project: Altar - Commodity: molybdenum - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:485d56586ecba72171b0 - Deposit or zone: Hypogene - Mining method: combined #### Resource Data - Category: measured - Tonnes: 549385000 - Grade: 20 - Grade Unit: ppm - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: The Measured molybdenum resource in the Hypogene zone is of high confidence but represents a trace element. - Positive factor: High confidence Measured category Evidence · table > 20 Context: 549,385 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-34) Altar · arsenic #### Identity - Project: Altar - Commodity: arsenic - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:485d56586ecba72171b0 - Deposit or zone: Hypogene - Mining method: combined #### Resource Data - Category: measured - Tonnes: 549385000 - Grade: 120 - Grade Unit: ppm - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: The Measured arsenic resource in the Hypogene zone is of high confidence but represents a deleterious element. - Positive factor: High confidence Measured category - Negative factor: Arsenic is a deleterious element that can incur penalties Evidence · table > 120 Context: 549,385 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-35) Altar · copper #### Identity - Project: Altar - Commodity: copper - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:5f4a22b0c3d46b100b58 - Deposit or zone: Hypogene - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 1517339000 - Grade: 0.42 - Grade Unit: % - Contained Metal: 13882 - Contained Unit: m lbs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Indicated resource for copper in the Hypogene zone provides reasonable confidence and a moderate grade, contributing significantly to the project's overall resource base. - Positive factor: Indicated category provides reasonable geological confidence - Positive factor: Copper grade of 0.42% is moderate for a porphyry deposit Evidence · table > 0.42 Context: 1,517,339 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-36) Altar · gold #### Identity - Project: Altar - Commodity: gold - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:5f4a22b0c3d46b100b58 - Deposit or zone: Hypogene - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 1517339000 - Grade: 0.05 - Grade Unit: g/t - Contained Metal: 2.6 - Contained Unit: m ozs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: The Indicated gold resource in the Hypogene zone is of reasonable confidence but the grade is relatively low for a porphyry deposit. - Positive factor: Indicated category provides reasonable geological confidence - Negative factor: Gold grade of 0.05 g/t is weak for a porphyry deposit Evidence · table > 0.05 Context: 1,517,339 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-37) Altar · silver #### Identity - Project: Altar - Commodity: silver - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:5f4a22b0c3d46b100b58 - Deposit or zone: Hypogene - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 1517339000 - Grade: 1.33 - Grade Unit: g/t - Contained Metal: 64.9 - Contained Unit: m ozs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: The Indicated silver resource in the Hypogene zone is of reasonable confidence but the grade is relatively low for a porphyry deposit. - Positive factor: Indicated category provides reasonable geological confidence - Negative factor: Silver grade of 1.33 g/t is weak for a porphyry deposit Evidence · table > 1.33 Context: 1,517,339 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-38) Altar · molybdenum #### Identity - Project: Altar - Commodity: molybdenum - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:5f4a22b0c3d46b100b58 - Deposit or zone: Hypogene - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 1517339000 - Grade: 54 - Grade Unit: ppm - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: The Indicated molybdenum resource in the Hypogene zone is of reasonable confidence but represents a trace element. - Positive factor: Indicated category provides reasonable geological confidence Evidence · table > 54 Context: 1,517,339 #### 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 **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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-39) Altar · arsenic #### Identity - Project: Altar - Commodity: arsenic - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:5f4a22b0c3d46b100b58 - Deposit or zone: Hypogene - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 1517339000 - Grade: 114 - Grade Unit: ppm - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: The Indicated arsenic resource in the Hypogene zone is of reasonable confidence but represents a deleterious element. - Positive factor: Indicated category provides reasonable geological confidence - Negative factor: Arsenic is a deleterious element that can incur penalties Evidence · table > 114 Context: 1,517,339 #### 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 **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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-40) Altar · copper #### Identity - Project: Altar - Commodity: copper - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:20c52bf231e29df2262e - Deposit or zone: Hypogene - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 1189513000 - Grade: 0.37 - Grade Unit: % - Contained Metal: 9572 - Contained Unit: m lbs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Inferred resource for copper in the Hypogene zone is speculative due to lower geological confidence, despite a moderate grade. - Negative factor: Inferred category is speculative and has lower geological confidence - Negative factor: Copper grade of 0.37% is moderate for a porphyry deposit Evidence · table > 0.37 Context: 1,189,513 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-41) Altar · gold #### Identity - Project: Altar - Commodity: gold - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:20c52bf231e29df2262e - Deposit or zone: Hypogene - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 1189513000 - Grade: 0.04 - Grade Unit: g/t - Contained Metal: 1.6 - Contained Unit: m ozs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: The Inferred gold resource in the Hypogene zone is speculative and has a low grade. - Negative factor: Inferred category is speculative and has lower geological confidence - Negative factor: Gold grade of 0.04 g/t is weak for a porphyry deposit Evidence · table > 0.04 Context: 1,189,513 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-42) Altar · silver #### Identity - Project: Altar - Commodity: silver - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:20c52bf231e29df2262e - Deposit or zone: Hypogene - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 1189513000 - Grade: 1.26 - Grade Unit: g/t - Contained Metal: 48.2 - Contained Unit: m ozs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: The Inferred silver resource in the Hypogene zone is speculative and has a low grade. - Negative factor: Inferred category is speculative and has lower geological confidence - Negative factor: Silver grade of 1.26 g/t is weak for a porphyry deposit Evidence · table > 1.26 Context: 1,189,513 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-43) Altar · molybdenum #### Identity - Project: Altar - Commodity: molybdenum - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:20c52bf231e29df2262e - Deposit or zone: Hypogene - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 1189513000 - Grade: 46 - Grade Unit: ppm - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: The Inferred molybdenum resource in the Hypogene zone is speculative and represents a trace element. - Negative factor: Inferred category is speculative and has lower geological confidence Evidence · table > 46 Context: 1,189,513 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-44) Altar · arsenic #### Identity - Project: Altar - Commodity: arsenic - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:20c52bf231e29df2262e - Deposit or zone: Hypogene - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 1189513000 - Grade: 96 - Grade Unit: ppm - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: The Inferred arsenic resource in the Hypogene zone is speculative and represents a deleterious element. - Negative factor: Inferred category is speculative and has lower geological confidence - Negative factor: Arsenic is a deleterious element that can incur penalties Evidence · table > 96 Context: 1,189,513 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-45) Altar · copper #### Identity - Project: Altar - Commodity: copper - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:4690e26742259d788f3d - Deposit or zone: Total - Mining method: combined #### Resource Data - Category: measured - Tonnes: 780779000 - Grade: 0.43 - Grade Unit: % - Contained Metal: 7354 - Contained Unit: m lbs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This total Measured resource for copper provides high confidence and a moderate grade, forming a significant part of the project's resource base. - Positive factor: High confidence Measured category - Positive factor: Copper grade of 0.43% is moderate for a porphyry deposit Evidence · table > 0.43 Context: 780,779 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-46) Altar · gold #### Identity - Project: Altar - Commodity: gold - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:4690e26742259d788f3d - Deposit or zone: Total - Mining method: combined #### Resource Data - Category: measured - Tonnes: 780779000 - Grade: 0.09 - Grade Unit: g/t - Contained Metal: 2.3 - Contained Unit: m ozs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: The total Measured gold resource is of high confidence but the grade is relatively low for a porphyry deposit. - Positive factor: High confidence Measured category - Negative factor: Gold grade of 0.09 g/t is weak for a porphyry deposit Evidence · table > 0.09 Context: 780,779 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-47) Altar · silver #### Identity - Project: Altar - Commodity: silver - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:4690e26742259d788f3d - Deposit or zone: Total - Mining method: combined #### Resource Data - Category: measured - Tonnes: 780779000 - Grade: 1.03 - Grade Unit: g/t - Contained Metal: 25.8 - Contained Unit: m ozs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: The total Measured silver resource is of high confidence but the grade is relatively low for a porphyry deposit. - Positive factor: High confidence Measured category - Negative factor: Silver grade of 1.03 g/t is weak for a porphyry deposit Evidence · table > 1.03 Context: 780,779 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-48) Altar · molybdenum #### Identity - Project: Altar - Commodity: molybdenum - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:4690e26742259d788f3d - Deposit or zone: Total - Mining method: combined #### Resource Data - Category: measured - Tonnes: 780779000 - Grade: 21 - Grade Unit: ppm - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: The total Measured molybdenum resource is of high confidence but represents a trace element. - Positive factor: High confidence Measured category Evidence · table > 21 Context: 780,779 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-49) Altar · arsenic #### Identity - Project: Altar - Commodity: arsenic - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:4690e26742259d788f3d - Deposit or zone: Total - Mining method: combined #### Resource Data - Category: measured - Tonnes: 780779000 - Grade: 156 - Grade Unit: ppm - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: The total Measured arsenic resource is of high confidence but represents a deleterious element. - Positive factor: High confidence Measured category - Negative factor: Arsenic is a deleterious element that can incur penalties Evidence · table > 156 Context: 780,779 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-50) Altar · copper #### Identity - Project: Altar - Commodity: copper - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:8ede59357d3a64550ec0 - Deposit or zone: Total - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 1616554000 - Grade: 0.41 - Grade Unit: % - Contained Metal: 14657 - Contained Unit: m lbs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This total Indicated resource for copper provides reasonable confidence and a moderate grade, forming a significant part of the project's resource base. - Positive factor: Indicated category provides reasonable geological confidence - Positive factor: Copper grade of 0.41% is moderate for a porphyry deposit Evidence · table > 0.41 Context: 1,616,554 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-51) Altar · gold #### Identity - Project: Altar - Commodity: gold - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:8ede59357d3a64550ec0 - Deposit or zone: Total - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 1616554000 - Grade: 0.05 - Grade Unit: g/t - Contained Metal: 2.8 - Contained Unit: m ozs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: The total Indicated gold resource is of reasonable confidence but the grade is relatively low for a porphyry deposit. - Positive factor: Indicated category provides reasonable geological confidence - Negative factor: Gold grade of 0.05 g/t is weak for a porphyry deposit Evidence · table > 0.05 Context: 1,616,554 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-52) Altar · silver #### Identity - Project: Altar - Commodity: silver - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:8ede59357d3a64550ec0 - Deposit or zone: Total - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 1616554000 - Grade: 1.31 - Grade Unit: g/t - Contained Metal: 68 - Contained Unit: m ozs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: The total Indicated silver resource is of reasonable confidence but the grade is relatively low for a porphyry deposit. - Positive factor: Indicated category provides reasonable geological confidence - Negative factor: Silver grade of 1.31 g/t is weak for a porphyry deposit Evidence · table > 1.31 Context: 1,616,554 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-53) Altar · molybdenum #### Identity - Project: Altar - Commodity: molybdenum - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:8ede59357d3a64550ec0 - Deposit or zone: Total - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 1616554000 - Grade: 52 - Grade Unit: ppm - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: The total Indicated molybdenum resource is of reasonable confidence but represents a trace element. - Positive factor: Indicated category provides reasonable geological confidence Evidence · table > 52 Context: 1,616,554 #### 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 **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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-54) Altar · arsenic #### Identity - Project: Altar - Commodity: arsenic - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:8ede59357d3a64550ec0 - Deposit or zone: Total - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 1616554000 - Grade: 115 - Grade Unit: ppm - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: The total Indicated arsenic resource is of reasonable confidence but represents a deleterious element. - Positive factor: Indicated category provides reasonable geological confidence - Negative factor: Arsenic is a deleterious element that can incur penalties Evidence · table > 115 Context: 1,616,554 #### 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 **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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-55) Altar · copper #### Identity - Project: Altar - Commodity: copper - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:d0374a14b1f6dbf57152 - Deposit or zone: Total - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 1215749000 - Grade: 0.37 - Grade Unit: % - Contained Metal: 9832 - Contained Unit: m lbs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This total Inferred resource for copper is speculative due to lower geological confidence, despite a moderate grade. - Negative factor: Inferred category is speculative and has lower geological confidence - Negative factor: Copper grade of 0.37% is moderate for a porphyry deposit Evidence · table > 0.37 Context: 1,215,749 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-56) Altar · gold #### Identity - Project: Altar - Commodity: gold - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:d0374a14b1f6dbf57152 - Deposit or zone: Total - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 1215749000 - Grade: 0.04 - Grade Unit: g/t - Contained Metal: 1.7 - Contained Unit: m ozs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: The total Inferred gold resource is speculative and has a low grade. - Negative factor: Inferred category is speculative and has lower geological confidence - Negative factor: Gold grade of 0.04 g/t is weak for a porphyry deposit Evidence · table > 0.04 Context: 1,215,749 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-57) Altar · silver #### Identity - Project: Altar - Commodity: silver - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:d0374a14b1f6dbf57152 - Deposit or zone: Total - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 1215749000 - Grade: 1.25 - Grade Unit: g/t - Contained Metal: 49 - Contained Unit: m ozs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: The total Inferred silver resource is speculative and has a low grade. - Negative factor: Inferred category is speculative and has lower geological confidence - Negative factor: Silver grade of 1.25 g/t is weak for a porphyry deposit Evidence · table > 1.25 Context: 1,215,749 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-58) Altar · molybdenum #### Identity - Project: Altar - Commodity: molybdenum - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:d0374a14b1f6dbf57152 - Deposit or zone: Total - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 1215749000 - Grade: 45 - Grade Unit: ppm - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: The total Inferred molybdenum resource is speculative and represents a trace element. - Negative factor: Inferred category is speculative and has lower geological confidence Evidence · table > 45 Context: 1,215,749 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-59) Altar · arsenic #### Identity - Project: Altar - Commodity: arsenic - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:d0374a14b1f6dbf57152 - Deposit or zone: Total - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 1215749000 - Grade: 98 - Grade Unit: ppm - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: The total Inferred arsenic resource is speculative and represents a deleterious element. - Negative factor: Inferred category is speculative and has lower geological confidence - Negative factor: Arsenic is a deleterious element that can incur penalties Evidence · table > 98 Context: 1,215,749 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-63) Altar · copper #### Identity - Project: Altar - Commodity: copper - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:288cfdf6f2e47f0e501a - Deposit or zone: Supergene - Mining method: combined - Material type: Supergene #### Resource Data - Category: measured - Tonnes: 121884 - Grade: 1475 - Grade Unit: m lbs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Measured resource for copper in the Supergene zone provides high confidence and a moderate grade, contributing significantly to the project's overall resource base. \(Expanded from multi-commodity resource table for completeness.\) - Positive factor: High confidence Measured category - Positive factor: Copper grade of 0.55% is moderate for a porphyry deposit Evidence · table > 1,475 Context: 121,884 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-64) Altar · gold #### Identity - Project: Altar - Commodity: gold - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:288cfdf6f2e47f0e501a - Deposit or zone: Supergene - Mining method: combined - Material type: Supergene #### Resource Data - Category: measured - Tonnes: 121884 - Grade: 0.3 - Grade Unit: m ozs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Measured resource for copper in the Supergene zone provides high confidence and a moderate grade, contributing significantly to the project's overall resource base. \(Expanded from multi-commodity resource table for completeness.\) - Positive factor: High confidence Measured category - Positive factor: Copper grade of 0.55% is moderate for a porphyry deposit Evidence · table > 0.3 Context: 121,884 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-65) Altar · silver #### Identity - Project: Altar - Commodity: silver - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:288cfdf6f2e47f0e501a - Deposit or zone: Supergene - Mining method: combined - Material type: Supergene #### Resource Data - Category: measured - Tonnes: 121884 - Grade: 4.2 - Grade Unit: m ozs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Measured resource for copper in the Supergene zone provides high confidence and a moderate grade, contributing significantly to the project's overall resource base. \(Expanded from multi-commodity resource table for completeness.\) - Positive factor: High confidence Measured category - Positive factor: Copper grade of 0.55% is moderate for a porphyry deposit Evidence · table > 4.2 Context: 121,884 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-66) Altar · molybdenum #### Identity - Project: Altar - Commodity: molybdenum - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:288cfdf6f2e47f0e501a - Deposit or zone: Supergene - Mining method: combined - Material type: Supergene #### Resource Data - Category: measured - Tonnes: 121884 - Grade: 21 - Grade Unit: ppm - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Measured resource for copper in the Supergene zone provides high confidence and a moderate grade, contributing significantly to the project's overall resource base. \(Expanded from multi-commodity resource table for completeness.\) - Positive factor: High confidence Measured category - Positive factor: Copper grade of 0.55% is moderate for a porphyry deposit Evidence · table > 21 Context: 121,884 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-67) Altar · copper #### Identity - Project: Altar - Commodity: copper - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:ba38c7b8b5d437b9fe3c - Deposit or zone: Supergene - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 80007 - Grade: 639 - Grade Unit: m lbs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Indicated resource for copper in the Supergene zone provides reasonable confidence and a moderate grade, contributing to the project's resource base. \(Expanded from multi-commodity resource table for completeness.\) - Positive factor: Indicated category provides reasonable geological confidence - Negative factor: Copper grade of 0.36% is moderate for a porphyry deposit Evidence · table > 639 Context: 80,007 #### 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 **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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-68) Altar · gold #### Identity - Project: Altar - Commodity: gold - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:ba38c7b8b5d437b9fe3c - Deposit or zone: Supergene - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 80007 - Grade: 0.2 - Grade Unit: m ozs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Indicated resource for copper in the Supergene zone provides reasonable confidence and a moderate grade, contributing to the project's resource base. \(Expanded from multi-commodity resource table for completeness.\) - Positive factor: Indicated category provides reasonable geological confidence - Negative factor: Copper grade of 0.36% is moderate for a porphyry deposit Evidence · table > 0.2 Context: 80,007 #### 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 **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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-69) Altar · silver #### Identity - Project: Altar - Commodity: silver - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:ba38c7b8b5d437b9fe3c - Deposit or zone: Supergene - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 80007 - Grade: 2.4 - Grade Unit: m ozs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Indicated resource for copper in the Supergene zone provides reasonable confidence and a moderate grade, contributing to the project's resource base. \(Expanded from multi-commodity resource table for completeness.\) - Positive factor: Indicated category provides reasonable geological confidence - Negative factor: Copper grade of 0.36% is moderate for a porphyry deposit Evidence · table > 2.4 Context: 80,007 #### 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 **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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-70) Altar · molybdenum #### Identity - Project: Altar - Commodity: molybdenum - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:ba38c7b8b5d437b9fe3c - Deposit or zone: Supergene - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 80007 - Grade: 19 - Grade Unit: ppm - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Indicated resource for copper in the Supergene zone provides reasonable confidence and a moderate grade, contributing to the project's resource base. \(Expanded from multi-commodity resource table for completeness.\) - Positive factor: Indicated category provides reasonable geological confidence - Negative factor: Copper grade of 0.36% is moderate for a porphyry deposit Evidence · table > 19 Context: 80,007 #### 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 **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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-71) Altar · copper #### Identity - Project: Altar - Commodity: copper - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:46fa57c222cb00974b77 - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 201891 - Grade: 2114 - Grade Unit: m lbs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Indicated resource for copper in the Supergene zone provides reasonable confidence and a moderate grade, contributing to the project's resource base. \(Expanded from multi-commodity resource table for completeness.\) - Positive factor: Indicated category provides reasonable geological confidence - Negative factor: Copper grade of 0.36% is moderate for a porphyry deposit Evidence · table > 2,114 Context: 201,891 #### 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 **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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-72) Altar · gold #### Identity - Project: Altar - Commodity: gold - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:46fa57c222cb00974b77 - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 201891 - Grade: 0.5 - Grade Unit: m ozs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Indicated resource for copper in the Supergene zone provides reasonable confidence and a moderate grade, contributing to the project's resource base. \(Expanded from multi-commodity resource table for completeness.\) - Positive factor: Indicated category provides reasonable geological confidence - Negative factor: Copper grade of 0.36% is moderate for a porphyry deposit Evidence · table > 0.5 Context: 201,891 #### 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 **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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-73) Altar · silver #### Identity - Project: Altar - Commodity: silver - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:46fa57c222cb00974b77 - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 201891 - Grade: 6.6 - Grade Unit: m ozs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Indicated resource for copper in the Supergene zone provides reasonable confidence and a moderate grade, contributing to the project's resource base. \(Expanded from multi-commodity resource table for completeness.\) - Positive factor: Indicated category provides reasonable geological confidence - Negative factor: Copper grade of 0.36% is moderate for a porphyry deposit Evidence · table > 6.6 Context: 201,891 #### 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 **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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-74) Altar · molybdenum #### Identity - Project: Altar - Commodity: molybdenum - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:46fa57c222cb00974b77 - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 201891 - Grade: 20 - Grade Unit: ppm - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Indicated resource for copper in the Supergene zone provides reasonable confidence and a moderate grade, contributing to the project's resource base. \(Expanded from multi-commodity resource table for completeness.\) - Positive factor: Indicated category provides reasonable geological confidence - Negative factor: Copper grade of 0.36% is moderate for a porphyry deposit Evidence · table > 20 Context: 201,891 #### 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 **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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-75) Altar · copper #### Identity - Project: Altar - Commodity: copper - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:cf264df8776e9c77db6a - Deposit or zone: Supergene - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 24850 - Grade: 251 - Grade Unit: m lbs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Inferred resource for copper in the Supergene zone is speculative due to lower geological confidence, despite a moderate grade. \(Expanded from multi-commodity resource table for completeness.\) - Negative factor: Inferred category is speculative and has lower geological confidence Evidence · table > 251 Context: 24,850 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-76) Altar · gold #### Identity - Project: Altar - Commodity: gold - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:cf264df8776e9c77db6a - Deposit or zone: Supergene - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 24850 - Grade: 0.1 - Grade Unit: m ozs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Inferred resource for copper in the Supergene zone is speculative due to lower geological confidence, despite a moderate grade. \(Expanded from multi-commodity resource table for completeness.\) - Negative factor: Inferred category is speculative and has lower geological confidence Evidence · table > 0.1 Context: 24,850 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-77) Altar · silver #### Identity - Project: Altar - Commodity: silver - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:cf264df8776e9c77db6a - Deposit or zone: Supergene - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 24850 - Grade: 0.8 - Grade Unit: m ozs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Inferred resource for copper in the Supergene zone is speculative due to lower geological confidence, despite a moderate grade. \(Expanded from multi-commodity resource table for completeness.\) - Negative factor: Inferred category is speculative and has lower geological confidence Evidence · table > 0.8 Context: 24,850 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-78) Altar · molybdenum #### Identity - Project: Altar - Commodity: molybdenum - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:cf264df8776e9c77db6a - Deposit or zone: Supergene - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 24850 - Grade: 19 - Grade Unit: ppm - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Inferred resource for copper in the Supergene zone is speculative due to lower geological confidence, despite a moderate grade. \(Expanded from multi-commodity resource table for completeness.\) - Negative factor: Inferred category is speculative and has lower geological confidence Evidence · table > 19 Context: 24,850 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-79) Altar · copper #### Identity - Project: Altar - Commodity: copper - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:44fbf43970d1d65dad88 - Deposit or zone: Supergene - Mining method: combined - Material type: mixed #### Resource Data - Category: measured - Tonnes: 109510 - Grade: 913 - Grade Unit: m lbs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Measured resource for copper in the Supergene zone provides high confidence and a moderate grade, contributing significantly to the project's overall resource base. \(Expanded from multi-commodity resource table for completeness.\) - Positive factor: High confidence Measured category - Positive factor: Copper grade of 0.55% is moderate for a porphyry deposit Evidence · table > 913 Context: 109,510 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-80) Altar · gold #### Identity - Project: Altar - Commodity: gold - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:44fbf43970d1d65dad88 - Deposit or zone: Supergene - Mining method: combined - Material type: mixed #### Resource Data - Category: measured - Tonnes: 109510 - Grade: 0.2 - Grade Unit: m ozs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Measured resource for copper in the Supergene zone provides high confidence and a moderate grade, contributing significantly to the project's overall resource base. \(Expanded from multi-commodity resource table for completeness.\) - Positive factor: High confidence Measured category - Positive factor: Copper grade of 0.55% is moderate for a porphyry deposit Evidence · table > 0.2 Context: 109,510 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-81) Altar · silver #### Identity - Project: Altar - Commodity: silver - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:44fbf43970d1d65dad88 - Deposit or zone: Supergene - Mining method: combined - Material type: mixed #### Resource Data - Category: measured - Tonnes: 109510 - Grade: 4.3 - Grade Unit: m ozs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Measured resource for copper in the Supergene zone provides high confidence and a moderate grade, contributing significantly to the project's overall resource base. \(Expanded from multi-commodity resource table for completeness.\) - Positive factor: High confidence Measured category - Positive factor: Copper grade of 0.55% is moderate for a porphyry deposit Evidence · table > 4.3 Context: 109,510 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-82) Altar · molybdenum #### Identity - Project: Altar - Commodity: molybdenum - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:44fbf43970d1d65dad88 - Deposit or zone: Supergene - Mining method: combined - Material type: mixed #### Resource Data - Category: measured - Tonnes: 109510 - Grade: 23 - Grade Unit: ppm - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Measured resource for copper in the Supergene zone provides high confidence and a moderate grade, contributing significantly to the project's overall resource base. \(Expanded from multi-commodity resource table for completeness.\) - Positive factor: High confidence Measured category - Positive factor: Copper grade of 0.55% is moderate for a porphyry deposit Evidence · table > 23 Context: 109,510 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-83) Altar · copper #### Identity - Project: Altar - Commodity: copper - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:42b2103646baf534735c - Deposit or zone: Supergene - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 19208 - Grade: 136 - Grade Unit: m lbs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Indicated resource for copper in the Supergene zone provides reasonable confidence and a moderate grade, contributing to the project's resource base. \(Expanded from multi-commodity resource table for completeness.\) - Positive factor: Indicated category provides reasonable geological confidence - Negative factor: Copper grade of 0.36% is moderate for a porphyry deposit Evidence · table > 136 Context: 19,208 #### 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 **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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-84) Altar · gold #### Identity - Project: Altar - Commodity: gold - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:42b2103646baf534735c - Deposit or zone: Supergene - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 19208 - Grade: 0 - Grade Unit: m ozs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Indicated resource for copper in the Supergene zone provides reasonable confidence and a moderate grade, contributing to the project's resource base. \(Expanded from multi-commodity resource table for completeness.\) - Positive factor: Indicated category provides reasonable geological confidence - Negative factor: Copper grade of 0.36% is moderate for a porphyry deposit Evidence · table > 0.0 Context: 19,208 #### 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 **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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-85) Altar · silver #### Identity - Project: Altar - Commodity: silver - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:42b2103646baf534735c - Deposit or zone: Supergene - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 19208 - Grade: 0.7 - Grade Unit: m ozs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Indicated resource for copper in the Supergene zone provides reasonable confidence and a moderate grade, contributing to the project's resource base. \(Expanded from multi-commodity resource table for completeness.\) - Positive factor: Indicated category provides reasonable geological confidence - Negative factor: Copper grade of 0.36% is moderate for a porphyry deposit Evidence · table > 0.7 Context: 19,208 #### 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 **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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-86) Altar · molybdenum #### Identity - Project: Altar - Commodity: molybdenum - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:42b2103646baf534735c - Deposit or zone: Supergene - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 19208 - Grade: 23 - Grade Unit: ppm - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Indicated resource for copper in the Supergene zone provides reasonable confidence and a moderate grade, contributing to the project's resource base. \(Expanded from multi-commodity resource table for completeness.\) - Positive factor: Indicated category provides reasonable geological confidence - Negative factor: Copper grade of 0.36% is moderate for a porphyry deposit Evidence · table > 23 Context: 19,208 #### 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 **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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-87) Altar · copper #### Identity - Project: Altar - Commodity: copper - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:92981b7ec35d064146cd - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 128718 - Grade: 1049 - Grade Unit: m lbs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Indicated resource for copper in the Supergene zone provides reasonable confidence and a moderate grade, contributing to the project's resource base. \(Expanded from multi-commodity resource table for completeness.\) - Positive factor: Indicated category provides reasonable geological confidence - Negative factor: Copper grade of 0.36% is moderate for a porphyry deposit Evidence · table > 1,049 Context: 128,718 #### 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 **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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-88) Altar · gold #### Identity - Project: Altar - Commodity: gold - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:92981b7ec35d064146cd - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 128718 - Grade: 0.3 - Grade Unit: m ozs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Indicated resource for copper in the Supergene zone provides reasonable confidence and a moderate grade, contributing to the project's resource base. \(Expanded from multi-commodity resource table for completeness.\) - Positive factor: Indicated category provides reasonable geological confidence - Negative factor: Copper grade of 0.36% is moderate for a porphyry deposit Evidence · table > 0.3 Context: 128,718 #### 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 **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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-89) Altar · silver #### Identity - Project: Altar - Commodity: silver - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:92981b7ec35d064146cd - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 128718 - Grade: 5 - Grade Unit: m ozs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Indicated resource for copper in the Supergene zone provides reasonable confidence and a moderate grade, contributing to the project's resource base. \(Expanded from multi-commodity resource table for completeness.\) - Positive factor: Indicated category provides reasonable geological confidence - Negative factor: Copper grade of 0.36% is moderate for a porphyry deposit Evidence · table > 5.0 Context: 128,718 #### 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 **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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-90) Altar · molybdenum #### Identity - Project: Altar - Commodity: molybdenum - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:92981b7ec35d064146cd - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 128718 - Grade: 23 - Grade Unit: ppm - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Indicated resource for copper in the Supergene zone provides reasonable confidence and a moderate grade, contributing to the project's resource base. \(Expanded from multi-commodity resource table for completeness.\) - Positive factor: Indicated category provides reasonable geological confidence - Negative factor: Copper grade of 0.36% is moderate for a porphyry deposit Evidence · table > 23 Context: 128,718 #### 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 **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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-91) Altar · copper #### Identity - Project: Altar - Commodity: copper - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:0404f42ee8a0118960e5 - Deposit or zone: Supergene - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 1386 - Grade: 9 - Grade Unit: m lbs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Inferred resource for copper in the Supergene zone is speculative due to lower geological confidence, despite a moderate grade. \(Expanded from multi-commodity resource table for completeness.\) - Negative factor: Inferred category is speculative and has lower geological confidence Evidence · table > 9 Context: 1,386 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-92) Altar · gold #### Identity - Project: Altar - Commodity: gold - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:0404f42ee8a0118960e5 - Deposit or zone: Supergene - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 1386 - Grade: 0 - Grade Unit: m ozs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Inferred resource for copper in the Supergene zone is speculative due to lower geological confidence, despite a moderate grade. \(Expanded from multi-commodity resource table for completeness.\) - Negative factor: Inferred category is speculative and has lower geological confidence Evidence · table > 0.0 Context: 1,386 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-93) Altar · silver #### Identity - Project: Altar - Commodity: silver - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:0404f42ee8a0118960e5 - Deposit or zone: Supergene - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 1386 - Grade: 0 - Grade Unit: m ozs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Inferred resource for copper in the Supergene zone is speculative due to lower geological confidence, despite a moderate grade. \(Expanded from multi-commodity resource table for completeness.\) - Negative factor: Inferred category is speculative and has lower geological confidence Evidence · table > 0.0 Context: 1,386 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-94) Altar · molybdenum #### Identity - Project: Altar - Commodity: molybdenum - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:0404f42ee8a0118960e5 - Deposit or zone: Supergene - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 1386 - Grade: 13 - Grade Unit: ppm - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Inferred resource for copper in the Supergene zone is speculative due to lower geological confidence, despite a moderate grade. \(Expanded from multi-commodity resource table for completeness.\) - Negative factor: Inferred category is speculative and has lower geological confidence Evidence · table > 13 Context: 1,386 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-95) Altar · copper #### Identity - Project: Altar - Commodity: copper - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:f40b20dc7da62ddbf423 - Deposit or zone: Supergene - Mining method: combined - Material type: Hypogene #### Resource Data - Category: measured - Tonnes: 549385 - Grade: 4966 - Grade Unit: m lbs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Measured resource for copper in the Supergene zone provides high confidence and a moderate grade, contributing significantly to the project's overall resource base. \(Expanded from multi-commodity resource table for completeness.\) - Positive factor: High confidence Measured category - Positive factor: Copper grade of 0.55% is moderate for a porphyry deposit Evidence · table > 4,966 Context: 549,385 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-96) Altar · gold #### Identity - Project: Altar - Commodity: gold - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:f40b20dc7da62ddbf423 - Deposit or zone: Supergene - Mining method: combined - Material type: Hypogene #### Resource Data - Category: measured - Tonnes: 549385 - Grade: 1.7 - Grade Unit: m ozs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Measured resource for copper in the Supergene zone provides high confidence and a moderate grade, contributing significantly to the project's overall resource base. \(Expanded from multi-commodity resource table for completeness.\) - Positive factor: High confidence Measured category - Positive factor: Copper grade of 0.55% is moderate for a porphyry deposit Evidence · table > 1.7 Context: 549,385 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-97) Altar · silver #### Identity - Project: Altar - Commodity: silver - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:f40b20dc7da62ddbf423 - Deposit or zone: Supergene - Mining method: combined - Material type: Hypogene #### Resource Data - Category: measured - Tonnes: 549385 - Grade: 17.3 - Grade Unit: m ozs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Measured resource for copper in the Supergene zone provides high confidence and a moderate grade, contributing significantly to the project's overall resource base. \(Expanded from multi-commodity resource table for completeness.\) - Positive factor: High confidence Measured category - Positive factor: Copper grade of 0.55% is moderate for a porphyry deposit Evidence · table > 17.3 Context: 549,385 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-98) Altar · molybdenum #### Identity - Project: Altar - Commodity: molybdenum - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:f40b20dc7da62ddbf423 - Deposit or zone: Supergene - Mining method: combined - Material type: Hypogene #### Resource Data - Category: measured - Tonnes: 549385 - Grade: 20 - Grade Unit: ppm - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Measured resource for copper in the Supergene zone provides high confidence and a moderate grade, contributing significantly to the project's overall resource base. \(Expanded from multi-commodity resource table for completeness.\) - Positive factor: High confidence Measured category - Positive factor: Copper grade of 0.55% is moderate for a porphyry deposit Evidence · table > 20 Context: 549,385 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-99) Altar · copper #### Identity - Project: Altar - Commodity: copper - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:9df6b19318521e51c128 - Deposit or zone: Supergene - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 1517339 - Grade: 13882 - Grade Unit: m lbs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Indicated resource for copper in the Supergene zone provides reasonable confidence and a moderate grade, contributing to the project's resource base. \(Expanded from multi-commodity resource table for completeness.\) - Positive factor: Indicated category provides reasonable geological confidence - Negative factor: Copper grade of 0.36% is moderate for a porphyry deposit Evidence · table > 13,882 Context: 1,517,339 #### 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 **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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-100) Altar · gold #### Identity - Project: Altar - Commodity: gold - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:9df6b19318521e51c128 - Deposit or zone: Supergene - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 1517339 - Grade: 2.6 - Grade Unit: m ozs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Indicated resource for copper in the Supergene zone provides reasonable confidence and a moderate grade, contributing to the project's resource base. \(Expanded from multi-commodity resource table for completeness.\) - Positive factor: Indicated category provides reasonable geological confidence - Negative factor: Copper grade of 0.36% is moderate for a porphyry deposit Evidence · table > 2.6 Context: 1,517,339 #### 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 **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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-101) Altar · silver #### Identity - Project: Altar - Commodity: silver - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:9df6b19318521e51c128 - Deposit or zone: Supergene - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 1517339 - Grade: 64.9 - Grade Unit: m ozs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Indicated resource for copper in the Supergene zone provides reasonable confidence and a moderate grade, contributing to the project's resource base. \(Expanded from multi-commodity resource table for completeness.\) - Positive factor: Indicated category provides reasonable geological confidence - Negative factor: Copper grade of 0.36% is moderate for a porphyry deposit Evidence · table > 64.9 Context: 1,517,339 #### 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 **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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-102) Altar · molybdenum #### Identity - Project: Altar - Commodity: molybdenum - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:9df6b19318521e51c128 - Deposit or zone: Supergene - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 1517339 - Grade: 54 - Grade Unit: ppm - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Indicated resource for copper in the Supergene zone provides reasonable confidence and a moderate grade, contributing to the project's resource base. \(Expanded from multi-commodity resource table for completeness.\) - Positive factor: Indicated category provides reasonable geological confidence - Negative factor: Copper grade of 0.36% is moderate for a porphyry deposit Evidence · table > 54 Context: 1,517,339 #### 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 **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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-103) Altar · copper #### Identity - Project: Altar - Commodity: copper - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:b01ac1c5a5756813282a - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 2066724 - Grade: 18848 - Grade Unit: m lbs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Indicated resource for copper in the Supergene zone provides reasonable confidence and a moderate grade, contributing to the project's resource base. \(Expanded from multi-commodity resource table for completeness.\) - Positive factor: Indicated category provides reasonable geological confidence - Negative factor: Copper grade of 0.36% is moderate for a porphyry deposit Evidence · table > 18,848 Context: 2,066,724 #### 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 **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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-104) Altar · gold #### Identity - Project: Altar - Commodity: gold - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:b01ac1c5a5756813282a - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 2066724 - Grade: 4.3 - Grade Unit: m ozs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Indicated resource for copper in the Supergene zone provides reasonable confidence and a moderate grade, contributing to the project's resource base. \(Expanded from multi-commodity resource table for completeness.\) - Positive factor: Indicated category provides reasonable geological confidence - Negative factor: Copper grade of 0.36% is moderate for a porphyry deposit Evidence · table > 4.3 Context: 2,066,724 #### 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 **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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-105) Altar · silver #### Identity - Project: Altar - Commodity: silver - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:b01ac1c5a5756813282a - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 2066724 - Grade: 82.2 - Grade Unit: m ozs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Indicated resource for copper in the Supergene zone provides reasonable confidence and a moderate grade, contributing to the project's resource base. \(Expanded from multi-commodity resource table for completeness.\) - Positive factor: Indicated category provides reasonable geological confidence - Negative factor: Copper grade of 0.36% is moderate for a porphyry deposit Evidence · table > 82.2 Context: 2,066,724 #### 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 **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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-106) Altar · molybdenum #### Identity - Project: Altar - Commodity: molybdenum - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:b01ac1c5a5756813282a - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 2066724 - Grade: 45 - Grade Unit: ppm - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Indicated resource for copper in the Supergene zone provides reasonable confidence and a moderate grade, contributing to the project's resource base. \(Expanded from multi-commodity resource table for completeness.\) - Positive factor: Indicated category provides reasonable geological confidence - Negative factor: Copper grade of 0.36% is moderate for a porphyry deposit Evidence · table > 45 Context: 2,066,724 #### 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 **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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-107) Altar · copper #### Identity - Project: Altar - Commodity: copper - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:c92e078a52230ab4317c - Deposit or zone: Supergene - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 1189513 - Grade: 9572 - Grade Unit: m lbs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Inferred resource for copper in the Supergene zone is speculative due to lower geological confidence, despite a moderate grade. \(Expanded from multi-commodity resource table for completeness.\) - Negative factor: Inferred category is speculative and has lower geological confidence Evidence · table > 9,572 Context: 1,189,513 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-108) Altar · gold #### Identity - Project: Altar - Commodity: gold - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:c92e078a52230ab4317c - Deposit or zone: Supergene - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 1189513 - Grade: 1.6 - Grade Unit: m ozs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Inferred resource for copper in the Supergene zone is speculative due to lower geological confidence, despite a moderate grade. \(Expanded from multi-commodity resource table for completeness.\) - Negative factor: Inferred category is speculative and has lower geological confidence Evidence · table > 1.6 Context: 1,189,513 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-109) Altar · silver #### Identity - Project: Altar - Commodity: silver - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:c92e078a52230ab4317c - Deposit or zone: Supergene - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 1189513 - Grade: 48.2 - Grade Unit: m ozs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Inferred resource for copper in the Supergene zone is speculative due to lower geological confidence, despite a moderate grade. \(Expanded from multi-commodity resource table for completeness.\) - Negative factor: Inferred category is speculative and has lower geological confidence Evidence · table > 48.2 Context: 1,189,513 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-110) Altar · molybdenum #### Identity - Project: Altar - Commodity: molybdenum - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:c92e078a52230ab4317c - Deposit or zone: Supergene - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 1189513 - Grade: 46 - Grade Unit: ppm - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Inferred resource for copper in the Supergene zone is speculative due to lower geological confidence, despite a moderate grade. \(Expanded from multi-commodity resource table for completeness.\) - Negative factor: Inferred category is speculative and has lower geological confidence Evidence · table > 46 Context: 1,189,513 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-111) Altar · copper #### Identity - Project: Altar - Commodity: copper - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:d4fdc73c17c349ed7fb8 - Mining method: combined #### Resource Data - Category: measured - Tonnes: 780779 - Grade: 7354 - Grade Unit: m lbs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Measured resource for copper in the Supergene zone provides high confidence and a moderate grade, contributing significantly to the project's overall resource base. \(Expanded from multi-commodity resource table for completeness.\) - Positive factor: High confidence Measured category - Positive factor: Copper grade of 0.55% is moderate for a porphyry deposit Evidence · table > 7,354 Context: 780,779 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-112) Altar · gold #### Identity - Project: Altar - Commodity: gold - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:d4fdc73c17c349ed7fb8 - Mining method: combined #### Resource Data - Category: measured - Tonnes: 780779 - Grade: 2.3 - Grade Unit: m ozs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Measured resource for copper in the Supergene zone provides high confidence and a moderate grade, contributing significantly to the project's overall resource base. \(Expanded from multi-commodity resource table for completeness.\) - Positive factor: High confidence Measured category - Positive factor: Copper grade of 0.55% is moderate for a porphyry deposit Evidence · table > 2.3 Context: 780,779 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-113) Altar · silver #### Identity - Project: Altar - Commodity: silver - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:d4fdc73c17c349ed7fb8 - Mining method: combined #### Resource Data - Category: measured - Tonnes: 780779 - Grade: 25.8 - Grade Unit: m ozs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Measured resource for copper in the Supergene zone provides high confidence and a moderate grade, contributing significantly to the project's overall resource base. \(Expanded from multi-commodity resource table for completeness.\) - Positive factor: High confidence Measured category - Positive factor: Copper grade of 0.55% is moderate for a porphyry deposit Evidence · table > 25.8 Context: 780,779 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-114) Altar · molybdenum #### Identity - Project: Altar - Commodity: molybdenum - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:d4fdc73c17c349ed7fb8 - Mining method: combined #### Resource Data - Category: measured - Tonnes: 780779 - Grade: 21 - Grade Unit: ppm - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Measured resource for copper in the Supergene zone provides high confidence and a moderate grade, contributing significantly to the project's overall resource base. \(Expanded from multi-commodity resource table for completeness.\) - Positive factor: High confidence Measured category - Positive factor: Copper grade of 0.55% is moderate for a porphyry deposit Evidence · table > 21 Context: 780,779 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-115) Altar · copper #### Identity - Project: Altar - Commodity: copper - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:c7525cd95d350a28f842 - Deposit or zone: Supergene - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 1616554 - Grade: 14657 - Grade Unit: m lbs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Indicated resource for copper in the Supergene zone provides reasonable confidence and a moderate grade, contributing to the project's resource base. \(Expanded from multi-commodity resource table for completeness.\) - Positive factor: Indicated category provides reasonable geological confidence - Negative factor: Copper grade of 0.36% is moderate for a porphyry deposit Evidence · table > 14,657 Context: 1,616,554 #### 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 **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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-116) Altar · gold #### Identity - Project: Altar - Commodity: gold - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:c7525cd95d350a28f842 - Deposit or zone: Supergene - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 1616554 - Grade: 2.8 - Grade Unit: m ozs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Indicated resource for copper in the Supergene zone provides reasonable confidence and a moderate grade, contributing to the project's resource base. \(Expanded from multi-commodity resource table for completeness.\) - Positive factor: Indicated category provides reasonable geological confidence - Negative factor: Copper grade of 0.36% is moderate for a porphyry deposit Evidence · table > 2.8 Context: 1,616,554 #### 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 **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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-117) Altar · silver #### Identity - Project: Altar - Commodity: silver - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:c7525cd95d350a28f842 - Deposit or zone: Supergene - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 1616554 - Grade: 68 - Grade Unit: m ozs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Indicated resource for copper in the Supergene zone provides reasonable confidence and a moderate grade, contributing to the project's resource base. \(Expanded from multi-commodity resource table for completeness.\) - Positive factor: Indicated category provides reasonable geological confidence - Negative factor: Copper grade of 0.36% is moderate for a porphyry deposit Evidence · table > 68.0 Context: 1,616,554 #### 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 **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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-118) Altar · molybdenum #### Identity - Project: Altar - Commodity: molybdenum - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:c7525cd95d350a28f842 - Deposit or zone: Supergene - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 1616554 - Grade: 52 - Grade Unit: ppm - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Indicated resource for copper in the Supergene zone provides reasonable confidence and a moderate grade, contributing to the project's resource base. \(Expanded from multi-commodity resource table for completeness.\) - Positive factor: Indicated category provides reasonable geological confidence - Negative factor: Copper grade of 0.36% is moderate for a porphyry deposit Evidence · table > 52 Context: 1,616,554 #### 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 **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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-119) Altar · copper #### Identity - Project: Altar - Commodity: copper - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:703529f5235c265b39b1 - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 2397333 - Grade: 22011 - Grade Unit: m lbs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Indicated resource for copper in the Supergene zone provides reasonable confidence and a moderate grade, contributing to the project's resource base. \(Expanded from multi-commodity resource table for completeness.\) - Positive factor: Indicated category provides reasonable geological confidence - Negative factor: Copper grade of 0.36% is moderate for a porphyry deposit Evidence · table > 22,011 Context: 2,397,333 #### 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 **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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-120) Altar · gold #### Identity - Project: Altar - Commodity: gold - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:703529f5235c265b39b1 - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 2397333 - Grade: 5.1 - Grade Unit: m ozs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Indicated resource for copper in the Supergene zone provides reasonable confidence and a moderate grade, contributing to the project's resource base. \(Expanded from multi-commodity resource table for completeness.\) - Positive factor: Indicated category provides reasonable geological confidence - Negative factor: Copper grade of 0.36% is moderate for a porphyry deposit Evidence · table > 5.1 Context: 2,397,333 #### 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 **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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-121) Altar · silver #### Identity - Project: Altar - Commodity: silver - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:703529f5235c265b39b1 - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 2397333 - Grade: 93.8 - Grade Unit: m ozs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Indicated resource for copper in the Supergene zone provides reasonable confidence and a moderate grade, contributing to the project's resource base. \(Expanded from multi-commodity resource table for completeness.\) - Positive factor: Indicated category provides reasonable geological confidence - Negative factor: Copper grade of 0.36% is moderate for a porphyry deposit Evidence · table > 93.8 Context: 2,397,333 #### 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 **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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-122) Altar · molybdenum #### Identity - Project: Altar - Commodity: molybdenum - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:703529f5235c265b39b1 - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 2397333 - Grade: 42 - Grade Unit: ppm - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Indicated resource for copper in the Supergene zone provides reasonable confidence and a moderate grade, contributing to the project's resource base. \(Expanded from multi-commodity resource table for completeness.\) - Positive factor: Indicated category provides reasonable geological confidence - Negative factor: Copper grade of 0.36% is moderate for a porphyry deposit Evidence · table > 42 Context: 2,397,333 #### 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 **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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-123) Altar · copper #### Identity - Project: Altar - Commodity: copper - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:0895fb4484450a021a17 - Deposit or zone: Supergene - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 1215749 - Grade: 9832 - Grade Unit: m lbs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Inferred resource for copper in the Supergene zone is speculative due to lower geological confidence, despite a moderate grade. \(Expanded from multi-commodity resource table for completeness.\) - Negative factor: Inferred category is speculative and has lower geological confidence Evidence · table > 9,832 Context: 1,215,749 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-124) Altar · gold #### Identity - Project: Altar - Commodity: gold - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:0895fb4484450a021a17 - Deposit or zone: Supergene - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 1215749 - Grade: 1.7 - Grade Unit: m ozs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Inferred resource for copper in the Supergene zone is speculative due to lower geological confidence, despite a moderate grade. \(Expanded from multi-commodity resource table for completeness.\) - Negative factor: Inferred category is speculative and has lower geological confidence Evidence · table > 1.7 Context: 1,215,749 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-125) Altar · silver #### Identity - Project: Altar - Commodity: silver - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:0895fb4484450a021a17 - Deposit or zone: Supergene - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 1215749 - Grade: 49 - Grade Unit: m ozs - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Inferred resource for copper in the Supergene zone is speculative due to lower geological confidence, despite a moderate grade. \(Expanded from multi-commodity resource table for completeness.\) - Negative factor: Inferred category is speculative and has lower geological confidence Evidence · table > 49.0 Context: 1,215,749 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-resource-facts-126) Altar · molybdenum #### Identity - Project: Altar - Commodity: molybdenum - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: John Marek RM-SME, Jacob Richey PE - Resource group id: resource:0895fb4484450a021a17 - Deposit or zone: Supergene - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 1215749 - Grade: 45 - Grade Unit: ppm - Cutoff Grade: 0.24 - Cutoff Unit: % CuEq #### Prior Estimate - Resource Date: 2024-11-25 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: This Inferred resource for copper in the Supergene zone is speculative due to lower geological confidence, despite a moderate grade. \(Expanded from multi-commodity resource table for completeness.\) - Negative factor: Inferred category is speculative and has lower geological confidence Evidence · table > 45 Context: 1,215,749 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ## Metallurgical Results (3) ### heap leach [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-metallurgical-facts-60) Altar · copper #### Identity - Project: Altar - Commodity: copper - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Test Work - Test Type: heap leach - Processing Route: bio-leach heap leaching process - Sample: supergene material #### Recovery - Recovery: 84 % - Recovery Basis: actual\_test #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: The estimated copper recovery of 84% for supergene material via bio-leach heap leaching is strong, offering a viable alternative with environmental benefits, though precious metals are not recovered. - Positive factor: Copper recovery of 84% for heap leach is strong/moderate - Positive factor: Nuton Technology offers ESG benefits and eliminates tailings dam - Negative factor: Nuton Technology does not recover precious metals - Negative factor: No commercial agreement for Nuton Technology yet Evidence · text > estimated copper recoveries from hypogene, mixed and supergene material at 79%, 81% and 84%, respectively. #### Tags used in scoring **Heap Leach Route** Polarity: neutral Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. Why it applies: processing\_route matches the heap\_leach signal **High Recovery** Polarity: positive Definition: Recovery at or above the exceptional band for the commodity and processing route. Why it applies: 84% is at or above the exceptional band \(80%\) **Byproduct Commodity** Polarity: neutral Definition: The tested commodity is a byproduct rather than the primary economic driver. Why it applies: the release describes a byproduct credit ### flotation [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-metallurgical-facts-61) Altar · gold #### Identity - Project: Altar - Commodity: gold - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Test Work - Test Type: flotation - Processing Route: conventional copper flotation circuit - Sample: LOM average #### Recovery - Recovery: 57 % - Recovery Basis: actual\_test - Head Grade: 0.07 - Head Grade Unit: g/t #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: The LOM gold recovery of 57% through a conventional flotation circuit is low, indicating significant metal loss. - Negative factor: Low recovery for gold via flotation \(57%\) is weak/red flag for a porphyry deposit Evidence · table > 57.00% Context: LOM Au Recovery #### Tags used in scoring **Mill Route** Polarity: neutral Definition: Processing via mill or concentrator \(CIL, CIP, tank leach, flotation\). Why it applies: processing\_route matches the flotation signal **Low Recovery** Polarity: negative Definition: Recovery below the weak band for the commodity and processing route. Why it applies: 57% is below the weak band \(80%\) **Byproduct Commodity** Polarity: neutral Definition: The tested commodity is a byproduct rather than the primary economic driver. Why it applies: the release describes a byproduct credit ### flotation [Link to this fact](https://atlas-extractions.minestarters.com/news/aldebaran-pea-for-the-altar-project-reports-48-year-mine-life-after-tax-npv-8-of--5e4320ce-e6cb-430a-9958-3ea36d514676#fact-metallurgical-facts-62) Altar · silver #### Identity - Project: Altar - Commodity: silver - Region: argentina - Reported Region: San Juan, Argentina - Ticker: ALDE #### Test Work - Test Type: flotation - Processing Route: conventional copper flotation circuit - Sample: LOM average #### Recovery - Recovery: 50 % - Recovery Basis: actual\_test - Head Grade: 1.18 - Head Grade Unit: g/t #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-10-30T00:00:00.000Z Reasoning: The LOM silver recovery of 50% through a conventional flotation circuit is low, indicating significant metal loss. - Negative factor: Low recovery for silver via flotation \(50%\) is weak/red flag for a porphyry deposit Evidence · table > 50.00% Context: LOM Ag Recovery #### Tags used in scoring **Mill Route** Polarity: neutral Definition: Processing via mill or concentrator \(CIL, CIP, tank leach, flotation\). Why it applies: processing\_route matches the flotation signal **Low Recovery** Polarity: negative Definition: Recovery below the weak band for the commodity and processing route. Why it applies: 50% is below the weak band \(75%\) **Byproduct Commodity** Polarity: neutral Definition: The tested commodity is a byproduct rather than the primary economic driver. Why it applies: the release describes a byproduct credit ## 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.