# Selkirk Copper Announces Positive PEA for the Minto Project, Delivering After-Tax NPV of C$494M with 48% IRR Canonical Atlas analysis: https://atlas-staging.minestarters.com/news/selkirk-copper-announces-positive-pea-for-the-minto-project-delivering-after-tax--74cecf17-e956-4e23-85ad-3c20e7d4d2a6 Original source: https://selkirkcopper.com/selkirk-copper-announces-positive-pea-for-the-minto-project-delivering-after-tax-npv-of-c494m-with-48-irr/ Publisher: prospectors\_exchange Original announcement: 2026-09-22T00:00:00.000Z Analysis by Minestarters Atlas Atlas analysis published: 2026-09-22T14:23:46.275Z Atlas analysis updated: 2026-09-22T14:23:46.275Z - Company: Selkirk Copper Mines Inc. - Ticker: SCMI - Exchange: Unavailable - Region: Yukon, Canada - Primary commodity: Copper - Secondary commodities: Gold, Silver - Document categories: Resource update, Other - Extracted: 2026-09-22 14:23:46 UTC Narrative sentiment: 0.80 · Bullish ## Minestarters Atlas summary Selkirk Copper has announced a positive Preliminary Economic Assessment \(PEA\) for the Minto Project in Yukon, reporting an after-tax NPV of C$494M and a 48% IRR at planning prices. The study highlights a 13-year mine life and significant resource growth, with M&I tonnes increasing by 280% compared to the 2025 estimate. Reasoning: The announcement of a positive PEA with robust economics and significant resource expansion represents a major project milestone. - Positive factor: Strong economic indicators \(NPV C$494M, 48% IRR\) - Positive factor: Significant resource growth \(M&I tonnes up 280%\) - Positive factor: High capital efficiency ratio - Positive factor: Utilization of existing infrastructure - Negative factor: PEA is a low-confidence study level - Negative factor: Inferred resources are significant - Negative factor: Sensitivity to copper price and exchange rates Facts used in scoring: 6 ## Classification and evidence **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: The announcement presents a Preliminary Economic Assessment \(PEA\) for the Minto Project. Evidence · text > Selkirk Copper Announces Positive PEA for the Minto Project **Tonnage Growth** Polarity: positive Definition: Significant tonnage increase \(≥15%\) vs prior estimate with grade maintained or improved. Why it applies: Measured & Indicated Resources increased by 280% compared to the 2025 MRE. Evidence · text > increased Measured & Indicated Resources in the 2026 Mineral Resource Estimate \(“MRE”\) by 280% **Contained Metal Growth** Polarity: positive Definition: True scale improvement — contained metal ounces/tonnes increased vs prior, accounting for both tonnage and grade changes. Why it applies: Contained copper, gold, and silver increased by 182%, 184% and 188% respectively. Evidence · text > increased contained copper, gold, and silver by 182%, 184% and 188% respectively ## 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-announces-positive-pea-for-the-minto-project-delivering-after-tax--74cecf17-e956-4e23-85ad-3c20e7d4d2a6#fact-resource-facts-0) minto project · copper #### Identity - Project: minto project - Commodity: copper - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Effective date: 2026-06-10T00:00:00.000Z - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:5e30ea56e65103028bfb - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 25679000 - Grade: 1.15 - Grade Unit: % #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-09-22T00:00:00.000Z Reasoning: Indicated resource component of the 2026 MRE. Evidence · text > 25.679 million tonnes at 1.15% 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 **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 **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-announces-positive-pea-for-the-minto-project-delivering-after-tax--74cecf17-e956-4e23-85ad-3c20e7d4d2a6#fact-resource-facts-1) minto project · gold #### Identity - Project: minto project - Commodity: gold - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Effective date: 2026-06-10T00:00:00.000Z - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:5e30ea56e65103028bfb - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 25679000 - Grade: 0.489 - Grade Unit: g/t #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-09-22T00:00:00.000Z Reasoning: Indicated resource component of the 2026 MRE. Evidence · text > 0.489 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 **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 **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-announces-positive-pea-for-the-minto-project-delivering-after-tax--74cecf17-e956-4e23-85ad-3c20e7d4d2a6#fact-resource-facts-2) minto project · silver #### Identity - Project: minto project - Commodity: silver - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Effective date: 2026-06-10T00:00:00.000Z - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:5e30ea56e65103028bfb - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 25679000 - Grade: 4.08 - Grade Unit: g/t #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-09-22T00:00:00.000Z Reasoning: Indicated resource component of the 2026 MRE. Evidence · text > 4.08 g/t 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 **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 **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-announces-positive-pea-for-the-minto-project-delivering-after-tax--74cecf17-e956-4e23-85ad-3c20e7d4d2a6#fact-resource-facts-3) minto project · copper #### Identity - Project: minto project - Commodity: copper - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Effective date: 2026-06-10T00:00:00.000Z - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:584921b10bbc1e9f2384 - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 16900000 - Grade: 0.76 - Grade Unit: % #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-09-22T00:00:00.000Z Reasoning: Inferred resource component of the 2026 MRE. - Negative factor: Inferred category is speculative Evidence · text > 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 **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 **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-announces-positive-pea-for-the-minto-project-delivering-after-tax--74cecf17-e956-4e23-85ad-3c20e7d4d2a6#fact-resource-facts-4) minto project · gold #### Identity - Project: minto project - Commodity: gold - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Effective date: 2026-06-10T00:00:00.000Z - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:584921b10bbc1e9f2384 - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 16900000 - Grade: 0.26 - Grade Unit: g/t #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-09-22T00:00:00.000Z Reasoning: Inferred resource component of the 2026 MRE. - Negative factor: Inferred category is speculative Evidence · text > 0.26 g/t 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 **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 **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-announces-positive-pea-for-the-minto-project-delivering-after-tax--74cecf17-e956-4e23-85ad-3c20e7d4d2a6#fact-resource-facts-5) minto project · silver #### Identity - Project: minto project - Commodity: silver - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Effective date: 2026-06-10T00:00:00.000Z - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:584921b10bbc1e9f2384 - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 16900000 - Grade: 2.7 - Grade Unit: g/t #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-09-22T00:00:00.000Z Reasoning: Inferred resource component of the 2026 MRE. - Negative factor: Inferred category is speculative Evidence · text > 2.7 g/t 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 **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 **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.