# Selkirk Copper’s $494M value for Minto nearly triple its costs Canonical Atlas analysis: https://atlas-extractions.minestarters.com/news/selkirk-copper-s-494m-value-for-minto-nearly-triple-its-costs--a9a1ec77-8485-435a-ab47-80c90050d192 Original source: https://www.mining.com/selkirk-coppers-494m-value-for-minto-nearly-triple-its-costs/ Publisher: miningcom Original announcement: 2026-09-22T15:26:01.000Z Analysis by Minestarters Atlas Atlas analysis published: Unknown date Atlas analysis updated: Unknown date - Company: Selkirk Copper Mines - Ticker: SCMI - Exchange: Unavailable - Region: Yukon - Primary commodity: Copper - Secondary commodities: Gold, Silver - Document categories: Resource update, Economic study - Extracted: 2026-09-22 21:17:48 UTC Narrative sentiment: 0.20 · Bullish ## Minestarters Atlas summary Selkirk Copper Mines has released a Preliminary Economic Assessment \(PEA\) for its Minto project in Yukon, reporting a post-tax NPV of US$353 million and an IRR of 47.8%. While the economics appear strong with a 1.9-year payback, the study uses high metal price assumptions and excludes $409 million in sustaining capital. Reasoning: The PEA presents strong headline economics \(high IRR, low payback\) but carries significant risk due to high price assumptions and the exclusion of major sustaining capital and pre-capital costs. - Positive factor: Strong post-tax IRR of 47.8% - Positive factor: Short payback period of 1.9 years - Positive factor: Significant contained metal growth noted in recent resource update - Negative factor: High metal price assumptions relative to long-term planning - Negative factor: PEA excludes significant sustaining capital \($409M\) and pre-capital expenditures - Negative factor: Share price dropped 18% following the announcement Facts used in scoring: 7 ## Classification and evidence **PEA Only** Polarity: neutral Definition: Only Class 4 / Initial Assessment economics available. Not bankable. Why it applies: The document reports a Preliminary Economic Assessment \(PEA\) for the Minto project. Evidence · text > A preliminary economic assessment \(PEA\) for Selkirk Copper Mines’ **Inferred Heavy Feed** Polarity: negative Definition: Material Inferred share of LOM mill feed, or the share is undisclosed. Why it applies: The resource update mentioned contains a significant inferred component \(16.9Mt vs 47.8Mt M&I\). Evidence · text > Inferred resources total 16.9 million tonnes ## 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-extractions.minestarters.com/news/selkirk-copper-s-494m-value-for-minto-nearly-triple-its-costs--a9a1ec77-8485-435a-ab47-80c90050d192#fact-resource-facts-1) 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: 2026-09-22T00:00:00.000Z Reasoning: Significant resource growth reported in July update. - Positive factor: Contained metal nearly tripled Evidence · text > Minto hosts 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-extractions.minestarters.com/news/selkirk-copper-s-494m-value-for-minto-nearly-triple-its-costs--a9a1ec77-8485-435a-ab47-80c90050d192#fact-resource-facts-2) 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: 2026-09-22T00:00:00.000Z Reasoning: Secondary metal reported in M&I resource. Evidence · text > 47.8 million measured and indicated tonnes grading 0.89% copper, 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-extractions.minestarters.com/news/selkirk-copper-s-494m-value-for-minto-nearly-triple-its-costs--a9a1ec77-8485-435a-ab47-80c90050d192#fact-resource-facts-3) 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: 2026-09-22T00:00:00.000Z Reasoning: Secondary metal reported in M&I resource. Evidence · text > 47.8 million measured and indicated tonnes grading 0.89% copper, 0.34 gram gold per tonne and 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-extractions.minestarters.com/news/selkirk-copper-s-494m-value-for-minto-nearly-triple-its-costs--a9a1ec77-8485-435a-ab47-80c90050d192#fact-resource-facts-4) 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: 2026-09-22T00:00:00.000Z Reasoning: Inferred 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-extractions.minestarters.com/news/selkirk-copper-s-494m-value-for-minto-nearly-triple-its-costs--a9a1ec77-8485-435a-ab47-80c90050d192#fact-resource-facts-5) 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: 2026-09-22T00:00:00.000Z Reasoning: Inferred resource component. Evidence · text > Inferred resources total 16.9 million tonnes at 0.76% copper, 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-extractions.minestarters.com/news/selkirk-copper-s-494m-value-for-minto-nearly-triple-its-costs--a9a1ec77-8485-435a-ab47-80c90050d192#fact-resource-facts-6) 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: 2026-09-22T00:00:00.000Z Reasoning: Inferred resource component. Evidence · text > Inferred resources total 16.9 million tonnes at 0.76% copper, 0.26 gram gold and 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.