# Selkirk Copper upgrades Minto resources Canonical Atlas analysis: https://atlas-staging.minestarters.com/news/selkirk-copper-upgrades-minto-resources--656bac6a-cd91-4761-98ea-e15620196f6f Original source: https://www.miningnewsnorth.com/story/2026/07/31/northern-neighbors/selkirk-copper-upgrades-minto-resources/9798.html Publisher: miningnewsnorth Original announcement: 2026-07-31T00:00:00.000Z Analysis by Minestarters Atlas Atlas analysis published: 2026-09-18T21:24:20.592Z Atlas analysis updated: 2026-09-18T21:24:20.592Z - Company: Selkirk Copper Mines Inc. - Ticker: Unavailable - Exchange: Unavailable - Region: Yukon - Primary commodity: Copper - Secondary commodities: Gold, Silver - Document categories: Resource update - Extracted: 2026-09-18 21:24:21 UTC Narrative sentiment: 0.80 · Bullish ## Minestarters Atlas summary Selkirk Copper Mines Inc. has reported a significant upgrade to the Minto copper-gold-silver resource in the Yukon, with measured and indicated tonnage increasing by 280% to 47.8 million metric tons. The update, supported by a 52,288-meter inaugural drill program, expands the resource base across both underground and open-pit mining areas. Reasoning: The resource update shows massive tonnage growth and successful conversion of mineralization into higher-confidence categories following a large drill program. - Positive factor: Significant tonnage growth in M&I category \(280%\) - Positive factor: Expansion of resource into both underground and open-pit configurations - Positive factor: Successful completion of inaugural 52,288m drill program - Positive factor: Resource upgrade from previous 2025 estimate Facts used in scoring: 12 ## Classification and evidence **Tonnage Growth** Polarity: positive Definition: Significant tonnage increase \(≥15%\) vs prior estimate with grade maintained or improved. Why it applies: M&I resource increased 280% compared to the 2025 estimate. Evidence · text > Minto's measured and indicated resource increased 280% to 47.8 million metric tons **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: The document reports an updated mineral resource estimate for the Minto mine. Evidence · text > reported an updated mineral resource estimate for its Minto copper-gold-silver mine ## Extracted facts Stored fact records: 12. Some facts used in scoring do not have a stored record. ## Resource Estimates (12) ### indicated [Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-upgrades-minto-resources--656bac6a-cd91-4761-98ea-e15620196f6f#fact-resource-facts-0) Minto · copper #### Identity - Project: Minto - Commodity: copper - Region: canada\_yt - Reported Region: Yukon #### Resource scope - Estimate type: resource - Resource group id: resource:005238a739346adbce89 - Deposit or zone: Minto - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 47800000 - Grade: 0.89 - Grade Unit: % #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-31T00:00:00.000Z Reasoning: Primary copper resource shows significant expansion. - Positive factor: Massive tonnage increase in M&I category Evidence · text > Minto's measured and indicated resource increased 280% to 47.8 million metric tons #### Tags used in scoring **Indicated Resource** Polarity: positive Definition: Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves. Why it applies: category is "indicated" **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **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 **No QP/CP Disclosure** Polarity: negative Definition: No Qualified Person or Competent Person named — lower credibility for the estimate. A QP/CP should be a member of a recognized professional association with relevant experience. Why it applies: no Qualified or Competent Person is named anywhere in the release **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 **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-staging.minestarters.com/news/selkirk-copper-upgrades-minto-resources--656bac6a-cd91-4761-98ea-e15620196f6f#fact-resource-facts-1) Minto · gold #### Identity - Project: Minto - Commodity: gold - Region: canada\_yt - Reported Region: Yukon #### Resource scope - Estimate type: resource - Resource group id: resource:005238a739346adbce89 - Deposit or zone: Minto - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 47800000 - Grade: 0.34 - Grade Unit: g/t #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-31T00:00:00.000Z Reasoning: Gold byproduct grade reported as part of the updated resource. Evidence · text > averaging 0.89% copper \(940 million pounds\), 0.34 g/t gold \(530,000 oz\) #### Tags used in scoring **Indicated Resource** Polarity: positive Definition: Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves. Why it applies: category is "indicated" **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **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 **No QP/CP Disclosure** Polarity: negative Definition: No Qualified Person or Competent Person named — lower credibility for the estimate. A QP/CP should be a member of a recognized professional association with relevant experience. Why it applies: no Qualified or Competent Person is named anywhere in the release **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 **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-staging.minestarters.com/news/selkirk-copper-upgrades-minto-resources--656bac6a-cd91-4761-98ea-e15620196f6f#fact-resource-facts-2) Minto · silver #### Identity - Project: Minto - Commodity: silver - Region: canada\_yt - Reported Region: Yukon #### Resource scope - Estimate type: resource - Resource group id: resource:005238a739346adbce89 - Deposit or zone: Minto - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 47800000 - Grade: 3.2 - Grade Unit: g/t #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-31T00:00:00.000Z Reasoning: Silver byproduct grade reported as part of the updated resource. Evidence · text > 3.2 g/t silver \(4.97 million oz\) #### Tags used in scoring **Indicated Resource** Polarity: positive Definition: Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves. Why it applies: category is "indicated" **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **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 **No QP/CP Disclosure** Polarity: negative Definition: No Qualified Person or Competent Person named — lower credibility for the estimate. A QP/CP should be a member of a recognized professional association with relevant experience. Why it applies: no Qualified or Competent Person is named anywhere in the release **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 **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-staging.minestarters.com/news/selkirk-copper-upgrades-minto-resources--656bac6a-cd91-4761-98ea-e15620196f6f#fact-resource-facts-3) Minto · copper #### Identity - Project: Minto - Commodity: copper - Region: canada\_yt - Reported Region: Yukon #### Resource scope - Estimate type: resource - Resource group id: resource:ef7717b8fe50c6e51303 - Deposit or zone: Minto - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 16900000 - Grade: 0.76 - Grade Unit: % #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-31T00:00:00.000Z Reasoning: Inferred resource component remains significant. Evidence · text > plus 16.9 million metric tons of inferred resources averaging 0.76% copper #### Tags used in scoring **Inferred Resource** Polarity: negative Definition: Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone. Why it applies: category is "inferred" **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **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 **No QP/CP Disclosure** Polarity: negative Definition: No Qualified Person or Competent Person named — lower credibility for the estimate. A QP/CP should be a member of a recognized professional association with relevant experience. Why it applies: no Qualified or Competent Person is named anywhere in the release **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 **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-staging.minestarters.com/news/selkirk-copper-upgrades-minto-resources--656bac6a-cd91-4761-98ea-e15620196f6f#fact-resource-facts-4) Minto · gold #### Identity - Project: Minto - Commodity: gold - Region: canada\_yt - Reported Region: Yukon #### Resource scope - Estimate type: resource - Resource group id: resource:ef7717b8fe50c6e51303 - Deposit or zone: Minto - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 16900000 - Grade: 0.26 - Grade Unit: g/t #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-31T00:00:00.000Z Reasoning: Gold byproduct grade reported for inferred category. Evidence · text > 0.26 g/t gold \(142,000 oz\) #### Tags used in scoring **Inferred Resource** Polarity: negative Definition: Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone. Why it applies: category is "inferred" **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **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 **No QP/CP Disclosure** Polarity: negative Definition: No Qualified Person or Competent Person named — lower credibility for the estimate. A QP/CP should be a member of a recognized professional association with relevant experience. Why it applies: no Qualified or Competent Person is named anywhere in the release **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 **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-staging.minestarters.com/news/selkirk-copper-upgrades-minto-resources--656bac6a-cd91-4761-98ea-e15620196f6f#fact-resource-facts-5) Minto · silver #### Identity - Project: Minto - Commodity: silver - Region: canada\_yt - Reported Region: Yukon #### Resource scope - Estimate type: resource - Resource group id: resource:ef7717b8fe50c6e51303 - Deposit or zone: Minto - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 16900000 - Grade: 2.7 - Grade Unit: g/t #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-31T00:00:00.000Z Reasoning: Silver byproduct grade reported for inferred category. Evidence · text > 2.7 g/t silver \(1.5 million oz\) #### Tags used in scoring **Inferred Resource** Polarity: negative Definition: Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone. Why it applies: category is "inferred" **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **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 **No QP/CP Disclosure** Polarity: negative Definition: No Qualified Person or Competent Person named — lower credibility for the estimate. A QP/CP should be a member of a recognized professional association with relevant experience. Why it applies: no Qualified or Competent Person is named anywhere in the release **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 **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-staging.minestarters.com/news/selkirk-copper-upgrades-minto-resources--656bac6a-cd91-4761-98ea-e15620196f6f#fact-resource-facts-6) Minto · copper #### Identity - Project: Minto - Commodity: copper - Region: canada\_yt - Reported Region: Yukon #### Resource scope - Estimate type: resource - Resource group id: resource:77e4c4431dee05172311 - Deposit or zone: underground - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 26000000 - Grade: 1.14 - Grade Unit: % #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-31T00:00:00.000Z Reasoning: Strong underground copper grade. - Positive factor: High grade underground component Evidence · text > 26 million metric tons averaging 1.14% copper... falls within underground mining areas #### Tags used in scoring **Indicated Resource** Polarity: positive Definition: Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves. Why it applies: category is "indicated" **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **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 **No QP/CP Disclosure** Polarity: negative Definition: No Qualified Person or Competent Person named — lower credibility for the estimate. A QP/CP should be a member of a recognized professional association with relevant experience. Why it applies: no Qualified or Competent Person is named anywhere in the release **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 **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-staging.minestarters.com/news/selkirk-copper-upgrades-minto-resources--656bac6a-cd91-4761-98ea-e15620196f6f#fact-resource-facts-7) Minto · gold #### Identity - Project: Minto - Commodity: gold - Region: canada\_yt - Reported Region: Yukon #### Resource scope - Estimate type: resource - Resource group id: resource:77e4c4431dee05172311 - Deposit or zone: underground - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 26000000 - Grade: 0.49 - Grade Unit: g/t #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-31T00:00:00.000Z Reasoning: Gold byproduct grade for underground component. Evidence · text > 0.49 g/t gold #### Tags used in scoring **Indicated Resource** Polarity: positive Definition: Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves. Why it applies: category is "indicated" **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **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 **No QP/CP Disclosure** Polarity: negative Definition: No Qualified Person or Competent Person named — lower credibility for the estimate. A QP/CP should be a member of a recognized professional association with relevant experience. Why it applies: no Qualified or Competent Person is named anywhere in the release **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 **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-staging.minestarters.com/news/selkirk-copper-upgrades-minto-resources--656bac6a-cd91-4761-98ea-e15620196f6f#fact-resource-facts-8) Minto · silver #### Identity - Project: Minto - Commodity: silver - Region: canada\_yt - Reported Region: Yukon #### Resource scope - Estimate type: resource - Resource group id: resource:77e4c4431dee05172311 - Deposit or zone: underground - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 26000000 - Grade: 4.4 - Grade Unit: g/t #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-31T00:00:00.000Z Reasoning: Silver byproduct grade for underground component. Evidence · text > 4.4 g/t silver falls within underground mining areas #### Tags used in scoring **Indicated Resource** Polarity: positive Definition: Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves. Why it applies: category is "indicated" **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **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 **No QP/CP Disclosure** Polarity: negative Definition: No Qualified Person or Competent Person named — lower credibility for the estimate. A QP/CP should be a member of a recognized professional association with relevant experience. Why it applies: no Qualified or Competent Person is named anywhere in the release **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 **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-staging.minestarters.com/news/selkirk-copper-upgrades-minto-resources--656bac6a-cd91-4761-98ea-e15620196f6f#fact-resource-facts-9) Minto · copper #### Identity - Project: Minto - Commodity: copper - Region: canada\_yt - Reported Region: Yukon #### Resource scope - Estimate type: resource - Resource group id: resource:34ae87668f6139f456d8 - Deposit or zone: open pit - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 21800000 - Grade: 0.59 - Grade Unit: % #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-31T00:00:00.000Z Reasoning: Open pit copper component. Evidence · text > 21.8 million metric tons averaging 0.59% copper... lies within the planned open pit #### Tags used in scoring **Indicated Resource** Polarity: positive Definition: Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves. Why it applies: category is "indicated" **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **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 **No QP/CP Disclosure** Polarity: negative Definition: No Qualified Person or Competent Person named — lower credibility for the estimate. A QP/CP should be a member of a recognized professional association with relevant experience. Why it applies: no Qualified or Competent Person is named anywhere in the release **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 **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-staging.minestarters.com/news/selkirk-copper-upgrades-minto-resources--656bac6a-cd91-4761-98ea-e15620196f6f#fact-resource-facts-10) Minto · gold #### Identity - Project: Minto - Commodity: gold - Region: canada\_yt - Reported Region: Yukon #### Resource scope - Estimate type: resource - Resource group id: resource:34ae87668f6139f456d8 - Deposit or zone: open pit - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 21800000 - Grade: 0.17 - Grade Unit: g/t #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-31T00:00:00.000Z Reasoning: Gold byproduct grade for open pit component. Evidence · text > 0.17 g/t gold #### Tags used in scoring **Indicated Resource** Polarity: positive Definition: Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves. Why it applies: category is "indicated" **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **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 **No QP/CP Disclosure** Polarity: negative Definition: No Qualified Person or Competent Person named — lower credibility for the estimate. A QP/CP should be a member of a recognized professional association with relevant experience. Why it applies: no Qualified or Competent Person is named anywhere in the release **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 **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-staging.minestarters.com/news/selkirk-copper-upgrades-minto-resources--656bac6a-cd91-4761-98ea-e15620196f6f#fact-resource-facts-11) Minto · silver #### Identity - Project: Minto - Commodity: silver - Region: canada\_yt - Reported Region: Yukon #### Resource scope - Estimate type: resource - Resource group id: resource:34ae87668f6139f456d8 - Deposit or zone: open pit - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 21800000 - Grade: 1.8 - Grade Unit: g/t #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-31T00:00:00.000Z Reasoning: Silver byproduct grade for open pit component. Evidence · text > 1.8 g/t silver lies within the planned open pit #### Tags used in scoring **Indicated Resource** Polarity: positive Definition: Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves. Why it applies: category is "indicated" **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **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 **No QP/CP Disclosure** Polarity: negative Definition: No Qualified Person or Competent Person named — lower credibility for the estimate. A QP/CP should be a member of a recognized professional association with relevant experience. Why it applies: no Qualified or Competent Person is named anywhere in the release **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 **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 ## 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.