# Selkirk Copper’s Minto posts $494M value, nearly triple its build costs Canonical Atlas analysis: https://atlas-extractions.minestarters.com/news/selkirk-copper-s-minto-posts-494m-value-nearly-triple-its-build-costs--cdc01c61-0dda-4880-8aeb-6ab6c487a8f5 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: 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: 2026-09-23 15:23:39 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, projecting an NPV of $494 million and a 47.8% post-tax IRR. Despite the strong economics, shares fell 18% as investors weighed the exclusion of certain restart costs and upcoming permitting requirements. Reasoning: The PEA presents strong base-case economics for a brownfield restart, though market reaction was negative likely due to excluded capital costs and permitting risks. - Positive factor: Strong post-tax IRR of 47.8% - Positive factor: Rapid payback period of 1.9 years - Positive factor: Significant contained metal scale - Positive factor: Indigenous ownership support - Negative factor: PEA excludes dewatering and rehabilitation costs - Negative factor: Share price dropped 18% on news - Negative factor: Project requires permit amendments and financing - Negative factor: Sensitivity to copper prices noted Facts used in scoring: 3 ## 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’ **High IRR** Polarity: positive Definition: Post-tax real unlevered IRR in the strong tier or better. Why it applies: The reported post-tax IRR of 47.8% is in the strong tier. Evidence · text > post-tax internal rate of return of 47.8% **Fast Payback** Polarity: positive Definition: Payback in the strong tier or better, on the required basis. Why it applies: The payback period of 1.9 years is in the strong tier. Evidence · text > relatively low payback period of 1.9 years **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 that nearly tripled contained metal. Evidence · text > The PEA comes weeks after Selkirk released a resource update for Minto ## Extracted facts Stored fact records: 2. Some facts used in scoring do not have a stored record. ## Resource Estimates (2) ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/selkirk-copper-s-minto-posts-494m-value-nearly-triple-its-build-costs--cdc01c61-0dda-4880-8aeb-6ab6c487a8f5#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:110d5c54eafd8f3f0ca0 - Deposit or zone: Minto - Mining method: other - Material type: undisclosed #### Resource Data - Category: indicated - Tonnes: 47800000 - Grade: 0.89 - Grade Unit: % - Contained Metal: 940000000 - Contained Unit: lb #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-09-23T00:00:00.000Z Reasoning: Significant M&I resource reported in July update. - Positive factor: Large scale M&I Evidence · text > Minto hosts 47.8 million measured and indicated tonnes grading 0.89% copper, 0.34 gram gold per tonne and 3.2 grams silver for 940 million lb. copper, 530,000 oz. gold and about 4.8 million oz. 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 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-minto-posts-494m-value-nearly-triple-its-build-costs--cdc01c61-0dda-4880-8aeb-6ab6c487a8f5#fact-resource-facts-2) Minto · copper #### Identity - Project: Minto - Commodity: copper - Region: canada\_yt - Reported Region: Yukon - Ticker: SCMI #### Resource scope - Estimate type: resource - Resource group id: resource:90ef53360fe49c45b2ba - Deposit or zone: Minto - Mining method: other - Material type: undisclosed #### Resource Data - Category: inferred - Tonnes: 16900000 - Grade: 0.76 - Grade Unit: % - Contained Metal: 281000000 - Contained Unit: lb #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-09-23T00:00:00.000Z 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 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.