# Selkirk Copper’s Minto posts $494M value, nearly triple its build costs Canonical Atlas analysis: https://atlas-staging.minestarters.com/news/selkirk-copper-s-minto-posts-494m-value-nearly-triple-its-build-costs--34b0f77e-6e74-40e1-9ff5-d2e2b95c8be2 Original source: https://www.mining.com/selkirk-coppers-minto-posts-494m-value-nearly-triple-its-build-costs/ Publisher: miningcom Original announcement: 2026-09-23T13:57:33.000Z Analysis by Minestarters Atlas Atlas analysis published: 2026-09-23T15:21:34.266Z Atlas analysis updated: 2026-09-23T15:21:34.266Z - Company: Selkirk Copper Mines - Ticker: SCMI - Exchange: Unavailable - Region: Yukon - Primary commodity: Copper - Secondary commodities: Gold, Silver - Document categories: Resource update, Other - Extracted: 2026-09-23 15:21:35 UTC Narrative sentiment: 0.20 · Bullish ## Minestarters Atlas summary Selkirk Copper Mines released a Preliminary Economic Assessment \(PEA\) for the Minto project in Yukon, reporting a $494 million NPV and a 47.8% IRR. Despite the positive economics, shares fell 18% as investors weighed the exclusion of certain restart costs and the need for future permitting and financing. Reasoning: The PEA shows strong economic potential for a restart, but market reaction was negative due to excluded capital costs and pending permitting/financing risks. - Positive factor: Strong PEA economics with $494M NPV - Positive factor: High IRR of 47.8% - Positive factor: Short payback period of 1.9 years - Positive factor: Recent resource update showed nearly tripled contained metal - Negative factor: Shares dropped 18% following announcement - Negative factor: PEA excludes dewatering, rehabilitation, and re-servicing costs - Negative factor: Project requires permit amendments and financing - Negative factor: No concentrate offtake agreements signed yet Facts used in scoring: 6 ## Classification and evidence **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: The document references a recent resource update from July that nearly tripled contained metal. Evidence · text > The PEA comes weeks after Selkirk released a resource update for Minto ## Extracted facts Stored fact records: 6. Some facts used in scoring do not have a stored record. ## Resource Estimates (6) ### indicated [Link to this fact](https://atlas-staging.minestarters.com/news/selkirk-copper-s-minto-posts-494m-value-nearly-triple-its-build-costs--34b0f77e-6e74-40e1-9ff5-d2e2b95c8be2#fact-resource-facts-0) Minto · copper #### Identity - Project: Minto - Commodity: copper - Region: canada\_yt - Reported Region: Yukon - Ticker: SCMI #### Resource scope - Estimate type: resource - Resource group id: resource:7bc5ab34d5383b01b7b8 - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 47800000 - Grade: 0.89 - Grade Unit: % #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-09-23T00:00:00.000Z Reasoning: Strong M&I copper resource component. - Positive factor: Significant tonnage and grade Evidence · text > 47.8 million measured and indicated tonnes grading 0.89% copper #### 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 **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-s-minto-posts-494m-value-nearly-triple-its-build-costs--34b0f77e-6e74-40e1-9ff5-d2e2b95c8be2#fact-resource-facts-1) Minto · gold #### Identity - Project: Minto - Commodity: gold - Region: canada\_yt - Reported Region: Yukon - Ticker: SCMI #### Resource scope - Estimate type: resource - Resource group id: resource:7bc5ab34d5383b01b7b8 - 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: 2026-09-23T00:00:00.000Z Reasoning: Gold byproduct grade within the M&I resource. Evidence · text > 0.34 gram gold per tonne #### 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 **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-s-minto-posts-494m-value-nearly-triple-its-build-costs--34b0f77e-6e74-40e1-9ff5-d2e2b95c8be2#fact-resource-facts-2) Minto · silver #### Identity - Project: Minto - Commodity: silver - Region: canada\_yt - Reported Region: Yukon - Ticker: SCMI #### Resource scope - Estimate type: resource - Resource group id: resource:7bc5ab34d5383b01b7b8 - 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: 2026-09-23T00:00:00.000Z Reasoning: Silver byproduct grade within the M&I resource. Evidence · text > 3.2 grams silver #### 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 **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-s-minto-posts-494m-value-nearly-triple-its-build-costs--34b0f77e-6e74-40e1-9ff5-d2e2b95c8be2#fact-resource-facts-3) Minto · copper #### Identity - Project: Minto - Commodity: copper - Region: canada\_yt - Reported Region: Yukon - Ticker: SCMI #### Resource scope - Estimate type: resource - Resource group id: resource:bae96661ac8bee03843e - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 16900000 - Grade: 0.76 - Grade Unit: % #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-09-23T00:00:00.000Z Reasoning: Inferred copper resource component. Evidence · text > Inferred resources total 16.9 million tonnes at 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 **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-s-minto-posts-494m-value-nearly-triple-its-build-costs--34b0f77e-6e74-40e1-9ff5-d2e2b95c8be2#fact-resource-facts-4) Minto · gold #### Identity - Project: Minto - Commodity: gold - Region: canada\_yt - Reported Region: Yukon - Ticker: SCMI #### Resource scope - Estimate type: resource - Resource group id: resource:bae96661ac8bee03843e - 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: 2026-09-23T00:00:00.000Z Reasoning: Inferred gold byproduct component. Evidence · text > 0.26 gram gold #### Tags used in scoring **Inferred Resource** Polarity: negative Definition: Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone. Why it applies: category is "inferred" **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **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 **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-s-minto-posts-494m-value-nearly-triple-its-build-costs--34b0f77e-6e74-40e1-9ff5-d2e2b95c8be2#fact-resource-facts-5) Minto · silver #### Identity - Project: Minto - Commodity: silver - Region: canada\_yt - Reported Region: Yukon - Ticker: SCMI #### Resource scope - Estimate type: resource - Resource group id: resource:bae96661ac8bee03843e - 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: 2026-09-23T00:00:00.000Z Reasoning: Inferred silver byproduct component. Evidence · text > 2.7 grams silver #### 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 **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.