# Selkirk Copper Announces Positive PEA for the Minto Project, Delivering After-Tax NPV of C$494M with 48% IRR Canonical Atlas analysis: https://atlas-extractions.minestarters.com/news/selkirk-copper-announces-positive-pea-for-the-minto-project-delivering-after-tax--c53139e1-57dd-4682-9081-4e66e413d7e4 Original source: https://www.newsfilecorp.com/release/315393/Selkirk-Copper-Announces-Positive-PEA-for-the-Minto-Project-Delivering-AfterTax-NPV-of-C494M-with-48-IRR Publisher: newsfile Original announcement: 2026-09-22T11:00:00.000Z Analysis by Minestarters Atlas Atlas analysis published: Unknown date Atlas analysis updated: Unknown date - Company: Selkirk Copper Mines Inc. - Ticker: SCMI - Exchange: Unavailable - Region: Yukon, Canada - Primary commodity: Copper - Secondary commodities: Gold, Silver - Document categories: Economic study, Resource update, Metallurgy - Extracted: 2026-09-22 11:28:24 UTC Narrative sentiment: 0.80 · Bullish ## Minestarters Atlas summary Selkirk Copper announced a positive Preliminary Economic Assessment \(PEA\) for its Minto Project in Yukon, Canada, outlining a C$494 million after-tax NPV at a 7% discount rate and a 47.8% after-tax IRR with a 1.9-year payback period. The study leverages existing infrastructure for a low-cost restart and incorporates a significantly updated 2026 Mineral Resource Estimate showing substantial increases in contained copper, gold, and silver. The PEA is preliminary, includes Inferred resources, and uses an AACE Class 5 cost estimate, indicating a high level of uncertainty, but highlights the project's robust economics and potential for concentrate production by 2028. Reasoning: Selkirk Copper's PEA for the Minto Project presents robust economics with a C$494M after-tax NPV and 47.8% IRR, driven by leveraging existing infrastructure and a significantly updated resource estimate. The fast payback period and high-quality concentrate are strong positives. However, the preliminary nature of the study, reliance on Inferred resources, and an AACE Class 5 cost estimate introduce notable risks, alongside an aggressive price deck assumption against historical averages. - Positive factor: Robust economics with high after-tax NPV and IRR at planning prices, indicating strong project viability. - Positive factor: Fast payback period of 1.9 years, suggesting quick capital recovery. - Positive factor: Leveraging existing infrastructure significantly reduces initial capital requirements, contributing to high capital efficiency. - Positive factor: Updated MRE shows substantial increases in Measured & Indicated Resources and contained metals, de-risking the project. - Positive factor: High-grade copper-gold-silver concentrate with negligible deleterious elements, expected to attract premium pricing. - Negative factor: The PEA is preliminary in nature and includes Inferred Mineral Resources, which are considered too speculative for economic considerations. - Negative factor: The study is an AACE Class 5 estimate, indicating a high level of uncertainty in cost estimates. - Negative factor: The price deck, while conservative against spot, is aggressive against the 3-year average, potentially overstating economics. - Negative factor: High strip ratio of 7.9 for open pit mining could lead to higher operating costs. - Negative factor: The project relies on timely permit amendments and execution of several scopes of work, introducing schedule risk. 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 is a Preliminary Economic Assessment \(PEA\), which is a Class 4 / Initial Assessment level study. Evidence · text > Selkirk Copper Announces Positive PEA for the Minto Project, Delivering After-Tax NPV of C$494M with 48% IRR **High IRR** Polarity: positive Definition: Post-tax real unlevered IRR in the strong tier or better. Why it applies: The after-tax IRR of 47.8% at planning prices is well above the strong tier threshold of 25%. Evidence · table > 47.8 Context: After-Tax IRR **Fast Payback** Polarity: positive Definition: Payback in the strong tier or better, on the required basis. Why it applies: The after-tax payback period of 1.9 years is within the exceptional tier threshold of <=2 years. Evidence · table > 1.9 Context: After-Tax Payback from First Production **Inferred Heavy Feed** Polarity: negative Definition: Material Inferred share of LOM mill feed, or the share is undisclosed. Why it applies: The PEA includes Inferred Mineral Resources that are considered too speculative geologically to have economic considerations applied, and the mine plan includes material from both M&I and Inferred resources. Evidence · text > The PEA is preliminary in nature and includes Inferred Mineral Resources that are considered too speculative geologically to have economic considerations applied that would enable these resources to be categorized as Mineral Reserves. **Resource Governance Undisclosed** Polarity: negative Definition: No QA/QC, top-cut methodology or QP independence disclosed. Caps study quality at the moderate tier. Why it applies: While a QP is named for the MRE, the document does not explicitly disclose top-cut methodology or QP independence for the resource estimate. Evidence · text > The MRE has been completed by Sue Bird of Moose Mountain Technical Services \(MMTS\). **Conservative Pricing** Polarity: positive Definition: Conservative on the worst of the spot, 3-year and consensus comparisons. Why it applies: The planning prices for copper, gold, and silver are below the spot prices and consensus, indicating a conservative approach. Evidence · table > 5.00 Context: Copper Price **No Price Sensitivity** Polarity: negative Definition: No price sensitivity disclosed — treated as a deliberate signal, not a neutral gap. Why it applies: The document provides sensitivity analysis for different price scenarios \(Downside, Planning, Spot, Upside\) but does not explicitly state a +/- 10% or 20% sensitivity for individual prices. Evidence · table > After Tax NPV 7% \(C$M\) Context: Downside **No Discount Rate Sensitivity** Polarity: negative Definition: Blocks NPV normalisation to the common rate without reconstruction. Why it applies: The document does not provide a sensitivity analysis for different discount rates, which blocks NPV normalisation. Evidence · text > Economics for the Minto Project, applying Planning Prices and a 7% discount rate result in an after-tax NPV 7% of C$494M and after-tax internal rate of return of 47.8%. **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: Scott Fulton, P.Eng, VP Engineering for the Company, is a non-independent Qualified Person who approved the technical information. Evidence · text > Scott Fulton, P.Eng, VP Engineering for the Company and a non-independent Qualified Person as defined by National Instrument 43-101, has supervised the preparation of this news release and approved the scientific and technical information herein. **JORC Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with JORC Code \(Australia\) — high reporting standard. Why it applies: The resource estimate states it was estimated using the 2019 CIM Best Practices Guidelines, which is equivalent to JORC compliance. Evidence · text > Resources are reported using the 2014 CIM Definition Standards and were estimated using the 2019 CIM Best Practices Guidelines. **NI 43-101 Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with NI 43-101 \(Canada\) — high reporting standard. Why it applies: The PEA and MRE are prepared under NI 43-101 standards, with a Qualified Person sign-off. Evidence · text > Scott Fulton, P.Eng, VP Engineering for the Company and a non-independent Qualified Person as defined by National Instrument 43-101, has supervised the preparation of this news release and approved the scientific and technical information herein. **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: The document includes an updated 2026 Mineral Resource Estimate, showing increases in contained metals over the 2025 MRE. Evidence · text > 52,288 metre drill program completed in April 2026 increased Measured & Indicated Resources in the 2026 Mineral Resource Estimate \("MRE"\) by 280% and increased contained copper, gold, and silver by 182%, 184% and 188% respectively above the 2025 Mineral Resource Estimate **Tonnage Growth** Polarity: positive Definition: Tonnage increase reaching the strong tier vs prior estimate, with grade maintained or improved. Why it applies: Measured & Indicated Resources increased by 280% in the 2026 MRE 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 in the 2026 MRE compared to the 2025 MRE. Evidence · text > increased contained copper, gold, and silver by 182%, 184% and 188% respectively above the 2025 Mineral Resource Estimate **High Recovery** Polarity: positive Definition: Recovery at or above the exceptional band for the commodity and processing route. Why it applies: Copper recovery of 88.7% is strong for a flotation circuit, and gold recovery of 84.6% is strong for a mill/CIL route. Evidence · table > 88.7 Context: Copper **Mill Route** Polarity: neutral Definition: Processing via mill or concentrator \(CIL, CIP, tank leach, flotation\). Why it applies: The processing flowsheet includes crushing, grinding, gravity concentration, and flotation to produce concentrate. Evidence · text > crushing, grinding and flotation operations, and concentrate production activities **Gravity Route** Polarity: neutral Definition: Gravity separation forms a material part of the flowsheet. Why it applies: The flowsheet includes two new gravity concentrators to improve gold recovery. Evidence · text > two \(2\) new gravity concentrators to improve gold recovery ## Extracted facts Stored fact records: 0. Some facts used in scoring do not have a stored record. No stored fact records are available for this extraction. ## 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.