# Selkirk Copper Announces Updated Mineral Resource Estimate with 182% Increase in Measured & Indicated Copper and 184% Increase in Measured & Indicated Gold Canonical Atlas analysis: https://atlas-extractions.minestarters.com/news/selkirk-copper-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba Original source: https://money.tmx.com/en/quote/SCMI/news/6807172071332074/selkirk-copper-announces-updated-mineral-resource-estimate-with-182-increase-in- Publisher: tmx Original announcement: 2026-07-30T11:00:00.000Z Analysis by Minestarters Atlas Atlas analysis published: Unknown date Atlas analysis updated: Unknown date - Company: Selkirk Copper - Ticker: SCMI - Exchange: TSX - Region: Yukon, Canada - Primary commodity: Copper - Secondary commodities: Gold, Silver - Document categories: Resource update - Extracted: 2026-09-14 22:35:39 UTC Narrative sentiment: 0.80 · Bullish ## Minestarters Atlas summary Selkirk Copper announced a significant update to its Mineral Resource Estimate for the Minto Project in Yukon, Canada, reporting a 280% increase in Measured & Indicated tonnage to 47.8 million tonnes. This update boosts contained copper by 182%, gold by 184%, and silver by 188% in the higher confidence categories. The new estimate, which includes 16.9 million tonnes of Inferred resources, is based on extensive drilling and improved geological modeling, and will be used for an updated Preliminary Economic Assessment. Reasoning: The updated Mineral Resource Estimate shows a significant increase of 280% in Measured & Indicated tonnage, leading to substantial growth in contained copper, gold, and silver, which de-risks the project and supports future economic studies. While some growth is attributed to updated metal prices and design assumptions, a significant portion is due to exploration success. The estimate is NI 43-101 compliant and signed off by a Qualified Person. - Positive factor: Category Upgrade - Positive factor: Tonnage Growth - Positive factor: Contained Metal Growth - Positive factor: QP/CP Signed - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed - Negative factor: Dilutive Growth Low confidence — this extraction should be reviewed alongside the original source. Facts used in scoring: 126 ## Classification and evidence No classification tags are available. ## Extracted facts Stored fact records: 126. Some facts used in scoring do not have a stored record. ## Resource Estimates (126) ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/selkirk-copper-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#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 - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:467c66eb5f0730f226e3 - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 21779000 - Grade: 0.59 - Grade Unit: % - Contained Metal: 283 - Contained Unit: mlbs - Cutoff Grade: 30 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Indicated open pit resource for copper contributes significantly to the overall M&I growth, demonstrating increased confidence in the project's open pit potential. - Positive factor: Tonnage Growth - Positive factor: Contained Metal Growth - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 0.59 Context: 21,779 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#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 - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:467c66eb5f0730f226e3 - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 21779000 - Grade: 0.17 - Grade Unit: g/t - Contained Metal: 122 - Contained Unit: koz - Cutoff Grade: 30 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Indicated open pit resource for gold contributes significantly to the overall M&I growth, demonstrating increased confidence in the project's open pit potential. - Positive factor: Tonnage Growth - Positive factor: Contained Metal Growth - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 0.17 Context: 21,779 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#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 - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:467c66eb5f0730f226e3 - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 21779000 - Grade: 1.8 - Grade Unit: g/t - Contained Metal: 1294 - Contained Unit: koz - Cutoff Grade: 30 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Indicated open pit resource for silver contributes significantly to the overall M&I growth, demonstrating increased confidence in the project's open pit potential. - Positive factor: Tonnage Growth - Positive factor: Contained Metal Growth - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 1.8 Context: 21,779 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#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 - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:32acf4e02f23dfb7c0e9 - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 7052000 - Grade: 0.55 - Grade Unit: % - Contained Metal: 85 - Contained Unit: mlbs - Cutoff Grade: 30 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Inferred open pit resource for copper adds to the overall resource base, indicating potential for future conversion to higher confidence categories with further drilling. - Positive factor: Tonnage Growth - Positive factor: Contained Metal Growth - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed - Negative factor: Inferred Resource Evidence · table > 0.55 Context: 7,052 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#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 - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:32acf4e02f23dfb7c0e9 - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 7052000 - Grade: 0.13 - Grade Unit: g/t - Contained Metal: 30 - Contained Unit: koz - Cutoff Grade: 30 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Inferred open pit resource for gold adds to the overall resource base, indicating potential for future conversion to higher confidence categories with further drilling. - Positive factor: Tonnage Growth - Positive factor: Contained Metal Growth - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed - Negative factor: Inferred Resource Evidence · table > 0.13 Context: 7,052 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#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 - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:32acf4e02f23dfb7c0e9 - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 7052000 - Grade: 1.6 - Grade Unit: g/t - Contained Metal: 354 - Contained Unit: koz - Cutoff Grade: 30 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Inferred open pit resource for silver adds to the overall resource base, indicating potential for future conversion to higher confidence categories with further drilling. - Positive factor: Tonnage Growth - Positive factor: Contained Metal Growth - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed - Negative factor: Inferred Resource Evidence · table > 1.6 Context: 7,052 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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 ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/selkirk-copper-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-6) Minto Project · copper #### Identity - Project: Minto Project - Commodity: copper - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:493676a3e0985312b14e - Mining method: combined #### Resource Data - Category: measured - Tonnes: 348000 - Grade: 0.92 - Grade Unit: % - Contained Metal: 7 - Contained Unit: mlbs - Cutoff Grade: 80 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: The establishment of a Measured resource for underground copper indicates a high level of geological confidence, which is a strong de-risking signal for future mine planning. - Positive factor: Measured Resource - Positive factor: Category Upgrade - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 0.92 Context: 348 #### Tags used in scoring **Measured Resource** Polarity: positive Definition: Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves. Why it applies: category is "measured" **Cut-off Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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 ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/selkirk-copper-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-7) Minto Project · gold #### Identity - Project: Minto Project - Commodity: gold - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:493676a3e0985312b14e - Mining method: combined #### Resource Data - Category: measured - Tonnes: 348000 - Grade: 0.39 - Grade Unit: g/t - Contained Metal: 4 - Contained Unit: koz - Cutoff Grade: 80 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: The establishment of a Measured resource for underground gold indicates a high level of geological confidence, which is a strong de-risking signal for future mine planning. - Positive factor: Measured Resource - Positive factor: Category Upgrade - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 0.39 Context: 348 #### Tags used in scoring **Measured Resource** Polarity: positive Definition: Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves. Why it applies: category is "measured" **Cut-off Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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 ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/selkirk-copper-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-8) Minto Project · silver #### Identity - Project: Minto Project - Commodity: silver - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:493676a3e0985312b14e - Mining method: combined #### Resource Data - Category: measured - Tonnes: 348000 - Grade: 3.3 - Grade Unit: g/t - Contained Metal: 36 - Contained Unit: koz - Cutoff Grade: 80 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: The establishment of a Measured resource for underground silver indicates a high level of geological confidence, which is a strong de-risking signal for future mine planning. - Positive factor: Measured Resource - Positive factor: Category Upgrade - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 3.3 Context: 348 #### Tags used in scoring **Measured Resource** Polarity: positive Definition: Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves. Why it applies: category is "measured" **Cut-off Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-9) Minto Project · copper #### Identity - Project: Minto Project - Commodity: copper - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:e507767bc66df638ab07 - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 25679000 - Grade: 1.15 - Grade Unit: % - Contained Metal: 650 - Contained Unit: mlbs - Cutoff Grade: 80 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Indicated underground resource for copper represents a significant portion of the M&I growth, providing a strong foundation for future economic studies. - Positive factor: Indicated Resource - Positive factor: Tonnage Growth - Positive factor: Contained Metal Growth - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 1.15 Context: 25,679 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-10) Minto Project · gold #### Identity - Project: Minto Project - Commodity: gold - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:e507767bc66df638ab07 - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 25679000 - Grade: 0.49 - Grade Unit: g/t - Contained Metal: 404 - Contained Unit: koz - Cutoff Grade: 80 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Indicated underground resource for gold represents a significant portion of the M&I growth, providing a strong foundation for future economic studies. - Positive factor: Indicated Resource - Positive factor: Tonnage Growth - Positive factor: Contained Metal Growth - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 0.49 Context: 25,679 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-11) Minto Project · silver #### Identity - Project: Minto Project - Commodity: silver - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:e507767bc66df638ab07 - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 25679000 - Grade: 4.4 - Grade Unit: g/t - Contained Metal: 3638 - Contained Unit: koz - Cutoff Grade: 80 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Indicated underground resource for silver represents a significant portion of the M&I growth, providing a strong foundation for future economic studies. - Positive factor: Indicated Resource - Positive factor: Tonnage Growth - Positive factor: Contained Metal Growth - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 4.4 Context: 25,679 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-12) Minto Project · copper #### Identity - Project: Minto Project - Commodity: copper - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:e4d27e3989d59f10dcbc - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 26027000 - Grade: 1.15 - Grade Unit: % - Contained Metal: 657 - Contained Unit: mlbs - Cutoff Grade: 80 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This combined Measured and Indicated underground resource for copper provides a robust base for economic studies, reflecting high confidence in the resource. - Positive factor: Indicated Resource - Positive factor: Tonnage Growth - Positive factor: Contained Metal Growth - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 1.15 Context: 26,027 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-13) Minto Project · gold #### Identity - Project: Minto Project - Commodity: gold - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:e4d27e3989d59f10dcbc - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 26027000 - Grade: 0.49 - Grade Unit: g/t - Contained Metal: 408 - Contained Unit: koz - Cutoff Grade: 80 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This combined Measured and Indicated underground resource for gold provides a robust base for economic studies, reflecting high confidence in the resource. - Positive factor: Indicated Resource - Positive factor: Tonnage Growth - Positive factor: Contained Metal Growth - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 0.49 Context: 26,027 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-14) Minto Project · silver #### Identity - Project: Minto Project - Commodity: silver - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:e4d27e3989d59f10dcbc - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 26027000 - Grade: 4.4 - Grade Unit: g/t - Contained Metal: 3674 - Contained Unit: koz - Cutoff Grade: 80 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This combined Measured and Indicated underground resource for silver provides a robust base for economic studies, reflecting high confidence in the resource. - Positive factor: Indicated Resource - Positive factor: Tonnage Growth - Positive factor: Contained Metal Growth - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 4.4 Context: 26,027 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-15) Minto Project · copper #### Identity - Project: Minto Project - Commodity: copper - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:078d60ddbdd059e1b74f - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 9812000 - Grade: 0.91 - Grade Unit: % - Contained Metal: 196 - Contained Unit: mlbs - Cutoff Grade: 80 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Inferred underground resource for copper adds to the overall resource base, indicating potential for future conversion to higher confidence categories with further drilling. - Positive factor: Tonnage Growth - Positive factor: Contained Metal Growth - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed - Negative factor: Inferred Resource Evidence · table > 0.91 Context: 9,812 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-16) Minto Project · gold #### Identity - Project: Minto Project - Commodity: gold - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:078d60ddbdd059e1b74f - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 9812000 - Grade: 0.36 - Grade Unit: g/t - Contained Metal: 112 - Contained Unit: koz - Cutoff Grade: 80 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Inferred underground resource for gold adds to the overall resource base, indicating potential for future conversion to higher confidence categories with further drilling. - Positive factor: Tonnage Growth - Positive factor: Contained Metal Growth - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed - Negative factor: Inferred Resource Evidence · table > 0.36 Context: 9,812 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-17) Minto Project · silver #### Identity - Project: Minto Project - Commodity: silver - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:078d60ddbdd059e1b74f - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 9812000 - Grade: 3.5 - Grade Unit: g/t - Contained Metal: 1113 - Contained Unit: koz - Cutoff Grade: 80 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Inferred underground resource for silver adds to the overall resource base, indicating potential for future conversion to higher confidence categories with further drilling. - Positive factor: Tonnage Growth - Positive factor: Contained Metal Growth - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed - Negative factor: Inferred Resource Evidence · table > 3.5 Context: 9,812 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-18) Minto Project · copper #### Identity - Project: Minto Project - Commodity: copper - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:53a3d7928baec52d82c2 - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 47806000 - Grade: 0.89 - Grade Unit: % - Contained Metal: 940 - Contained Unit: mlbs - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 - Prior Tonnes: 12580000 - Prior Contained Metal: 333.3 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: The total Measured & Indicated copper resource shows a substantial increase in tonnage and contained metal compared to the previous estimate, significantly de-risking the project, despite a lower average grade. - Positive factor: Category Upgrade - Positive factor: Tonnage Growth - Positive factor: Contained Metal Growth - Positive factor: NI 43-101 Compliant - Negative factor: Dilutive Growth Evidence · table > 0.89 Context: 47,806 #### 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 **Tonnage Growth** Polarity: positive Definition: Tonnage increase reaching the strong tier vs prior estimate, with grade maintained or improved. Why it applies: 47806000 against 12580000 previously **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: 940 against 333.3 previously **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-19) Minto Project · gold #### Identity - Project: Minto Project - Commodity: gold - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:53a3d7928baec52d82c2 - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 47806000 - Grade: 0.34 - Grade Unit: g/t - Contained Metal: 530 - Contained Unit: koz - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 - Prior Tonnes: 12580000 - Prior Contained Metal: 186.6 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: The total Measured & Indicated gold resource shows a substantial increase in tonnage and contained metal compared to the previous estimate, significantly de-risking the project, despite a lower average grade. - Positive factor: Category Upgrade - Positive factor: Tonnage Growth - Positive factor: Contained Metal Growth - Positive factor: NI 43-101 Compliant - Negative factor: Dilutive Growth Evidence · table > 0.34 Context: 47,806 #### 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 **Tonnage Growth** Polarity: positive Definition: Tonnage increase reaching the strong tier vs prior estimate, with grade maintained or improved. Why it applies: 47806000 against 12580000 previously **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: 530 against 186.6 previously **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-20) Minto Project · silver #### Identity - Project: Minto Project - Commodity: silver - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:53a3d7928baec52d82c2 - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 47806000 - Grade: 3.2 - Grade Unit: g/t - Contained Metal: 4969 - Contained Unit: koz - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 - Prior Tonnes: 12580000 - Prior Contained Metal: 1720 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: The total Measured & Indicated silver resource shows a substantial increase in tonnage and contained metal compared to the previous estimate, significantly de-risking the project, despite a lower average grade. - Positive factor: Category Upgrade - Positive factor: Tonnage Growth - Positive factor: Contained Metal Growth - Positive factor: NI 43-101 Compliant - Negative factor: Dilutive Growth Evidence · table > 3.2 Context: 47,806 #### 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 **Tonnage Growth** Polarity: positive Definition: Tonnage increase reaching the strong tier vs prior estimate, with grade maintained or improved. Why it applies: 47806000 against 12580000 previously **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: 4969 against 1720 previously **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-21) Minto Project · copper #### Identity - Project: Minto Project - Commodity: copper - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:ab28a8ba3c18edd201f1 - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 16865000 - Grade: 0.76 - Grade Unit: % - Contained Metal: 281 - Contained Unit: mlbs - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: The total Inferred copper resource adds significant potential to the project, providing targets for future drilling to upgrade confidence. - Positive factor: Tonnage Growth - Positive factor: Contained Metal Growth - Positive factor: NI 43-101 Compliant - Negative factor: Inferred Resource Evidence · table > 0.76 Context: 16,865 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-22) Minto Project · gold #### Identity - Project: Minto Project - Commodity: gold - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:ab28a8ba3c18edd201f1 - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 16865000 - Grade: 0.26 - Grade Unit: g/t - Contained Metal: 142 - Contained Unit: koz - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: The total Inferred gold resource adds significant potential to the project, providing targets for future drilling to upgrade confidence. - Positive factor: Tonnage Growth - Positive factor: Contained Metal Growth - Positive factor: NI 43-101 Compliant - Negative factor: Inferred Resource Evidence · table > 0.26 Context: 16,865 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-23) Minto Project · silver #### Identity - Project: Minto Project - Commodity: silver - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:ab28a8ba3c18edd201f1 - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 16865000 - Grade: 2.7 - Grade Unit: g/t - Contained Metal: 1467 - Contained Unit: koz - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: The total Inferred silver resource adds significant potential to the project, providing targets for future drilling to upgrade confidence. - Positive factor: Tonnage Growth - Positive factor: Contained Metal Growth - Positive factor: NI 43-101 Compliant - Negative factor: Inferred Resource Evidence · table > 2.7 Context: 16,865 #### 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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 ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/selkirk-copper-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-24) Minto Project · copper #### Identity - Project: Minto Project - Commodity: copper - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:3652714765653ae0ca39 - Mining method: combined #### Resource Data - Category: measured - Tonnes: 380000 - Grade: 0.882 - Grade Unit: % - Contained Metal: 7.4 - Contained Unit: mlbs - Cutoff Grade: 60 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Measured underground resource for copper at a $60 CAD cutoff provides high confidence for mine planning. - Positive factor: Measured Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 0.882 Context: 380 #### Tags used in scoring **Measured Resource** Polarity: positive Definition: Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves. Why it applies: category is "measured" **Cut-off Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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 ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/selkirk-copper-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-25) Minto Project · gold #### Identity - Project: Minto Project - Commodity: gold - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:3652714765653ae0ca39 - Mining method: combined #### Resource Data - Category: measured - Tonnes: 380000 - Grade: 0.377 - Grade Unit: g/t - Contained Metal: 4.6 - Contained Unit: koz - Cutoff Grade: 60 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Measured underground resource for gold at a $60 CAD cutoff provides high confidence for mine planning. - Positive factor: Measured Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 0.377 Context: 380 #### Tags used in scoring **Measured Resource** Polarity: positive Definition: Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves. Why it applies: category is "measured" **Cut-off Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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 ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/selkirk-copper-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-26) Minto Project · silver #### Identity - Project: Minto Project - Commodity: silver - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:3652714765653ae0ca39 - Mining method: combined #### Resource Data - Category: measured - Tonnes: 380000 - Grade: 3.14 - Grade Unit: g/t - Contained Metal: 38.3 - Contained Unit: koz - Cutoff Grade: 60 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Measured underground resource for silver at a $60 CAD cutoff provides high confidence for mine planning. - Positive factor: Measured Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 3.14 Context: 380 #### Tags used in scoring **Measured Resource** Polarity: positive Definition: Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves. Why it applies: category is "measured" **Cut-off Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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 ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/selkirk-copper-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-27) Minto Project · copper #### Identity - Project: Minto Project - Commodity: copper - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:59e7e1ddf5442695d70e - Mining method: combined #### Resource Data - Category: measured - Tonnes: 368000 - Grade: 0.897 - Grade Unit: % - Contained Metal: 7.3 - Contained Unit: mlbs - Cutoff Grade: 70 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Measured underground resource for copper at a $70 CAD cutoff provides high confidence for mine planning. - Positive factor: Measured Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 0.897 Context: 368 #### Tags used in scoring **Measured Resource** Polarity: positive Definition: Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves. Why it applies: category is "measured" **Cut-off Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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 ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/selkirk-copper-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-28) Minto Project · gold #### Identity - Project: Minto Project - Commodity: gold - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:59e7e1ddf5442695d70e - Mining method: combined #### Resource Data - Category: measured - Tonnes: 368000 - Grade: 0.383 - Grade Unit: g/t - Contained Metal: 4.5 - Contained Unit: koz - Cutoff Grade: 70 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Measured underground resource for gold at a $70 CAD cutoff provides high confidence for mine planning. - Positive factor: Measured Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 0.383 Context: 368 #### Tags used in scoring **Measured Resource** Polarity: positive Definition: Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves. Why it applies: category is "measured" **Cut-off Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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 ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/selkirk-copper-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-29) Minto Project · silver #### Identity - Project: Minto Project - Commodity: silver - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:59e7e1ddf5442695d70e - Mining method: combined #### Resource Data - Category: measured - Tonnes: 368000 - Grade: 3.2 - Grade Unit: g/t - Contained Metal: 37.7 - Contained Unit: koz - Cutoff Grade: 70 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Measured underground resource for silver at a $70 CAD cutoff provides high confidence for mine planning. - Positive factor: Measured Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 3.2 Context: 368 #### Tags used in scoring **Measured Resource** Polarity: positive Definition: Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves. Why it applies: category is "measured" **Cut-off Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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 ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/selkirk-copper-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-30) Minto Project · copper #### Identity - Project: Minto Project - Commodity: copper - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:493676a3e0985312b14e - Mining method: combined #### Resource Data - Category: measured - Tonnes: 348000 - Grade: 0.923 - Grade Unit: % - Contained Metal: 7.1 - Contained Unit: mlbs - Cutoff Grade: 80 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Measured underground resource for copper at a $80 CAD cutoff provides high confidence for mine planning. - Positive factor: Measured Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 0.923 Context: 348 #### Tags used in scoring **Measured Resource** Polarity: positive Definition: Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves. Why it applies: category is "measured" **Cut-off Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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 ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/selkirk-copper-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-31) Minto Project · gold #### Identity - Project: Minto Project - Commodity: gold - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:493676a3e0985312b14e - Mining method: combined #### Resource Data - Category: measured - Tonnes: 348000 - Grade: 0.393 - Grade Unit: g/t - Contained Metal: 4.4 - Contained Unit: koz - Cutoff Grade: 80 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Measured underground resource for gold at a $80 CAD cutoff provides high confidence for mine planning. - Positive factor: Measured Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 0.393 Context: 348 #### Tags used in scoring **Measured Resource** Polarity: positive Definition: Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves. Why it applies: category is "measured" **Cut-off Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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 ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/selkirk-copper-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-32) Minto Project · silver #### Identity - Project: Minto Project - Commodity: silver - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:493676a3e0985312b14e - Mining method: combined #### Resource Data - Category: measured - Tonnes: 348000 - Grade: 3.3 - Grade Unit: g/t - Contained Metal: 36.5 - Contained Unit: koz - Cutoff Grade: 80 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Measured underground resource for silver at a $80 CAD cutoff provides high confidence for mine planning. - Positive factor: Measured Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 3.3 Context: 348 #### Tags used in scoring **Measured Resource** Polarity: positive Definition: Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves. Why it applies: category is "measured" **Cut-off Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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 ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/selkirk-copper-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-33) Minto Project · copper #### Identity - Project: Minto Project - Commodity: copper - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:7d8ccab4244b5a108308 - Mining method: combined #### Resource Data - Category: measured - Tonnes: 326000 - Grade: 0.949 - Grade Unit: % - Contained Metal: 6.8 - Contained Unit: mlbs - Cutoff Grade: 90 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Measured underground resource for copper at a $90 CAD cutoff provides high confidence for mine planning. - Positive factor: Measured Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 0.949 Context: 326 #### Tags used in scoring **Measured Resource** Polarity: positive Definition: Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves. Why it applies: category is "measured" **Cut-off Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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 ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/selkirk-copper-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-34) Minto Project · gold #### Identity - Project: Minto Project - Commodity: gold - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:7d8ccab4244b5a108308 - Mining method: combined #### Resource Data - Category: measured - Tonnes: 326000 - Grade: 0.404 - Grade Unit: g/t - Contained Metal: 4.2 - Contained Unit: koz - Cutoff Grade: 90 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Measured underground resource for gold at a $90 CAD cutoff provides high confidence for mine planning. - Positive factor: Measured Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 0.404 Context: 326 #### Tags used in scoring **Measured Resource** Polarity: positive Definition: Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves. Why it applies: category is "measured" **Cut-off Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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 ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/selkirk-copper-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-35) Minto Project · silver #### Identity - Project: Minto Project - Commodity: silver - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:7d8ccab4244b5a108308 - Mining method: combined #### Resource Data - Category: measured - Tonnes: 326000 - Grade: 3.4 - Grade Unit: g/t - Contained Metal: 35.2 - Contained Unit: koz - Cutoff Grade: 90 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Measured underground resource for silver at a $90 CAD cutoff provides high confidence for mine planning. - Positive factor: Measured Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 3.4 Context: 326 #### Tags used in scoring **Measured Resource** Polarity: positive Definition: Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves. Why it applies: category is "measured" **Cut-off Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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 ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/selkirk-copper-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-36) Minto Project · copper #### Identity - Project: Minto Project - Commodity: copper - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:5f7245ec2324d9fa3644 - Mining method: combined #### Resource Data - Category: measured - Tonnes: 290000 - Grade: 0.993 - Grade Unit: % - Contained Metal: 6.4 - Contained Unit: mlbs - Cutoff Grade: 100 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Measured underground resource for copper at a $100 CAD cutoff provides high confidence for mine planning. - Positive factor: Measured Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 0.993 Context: 290 #### Tags used in scoring **Measured Resource** Polarity: positive Definition: Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves. Why it applies: category is "measured" **Cut-off Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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 ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/selkirk-copper-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-37) Minto Project · gold #### Identity - Project: Minto Project - Commodity: gold - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:5f7245ec2324d9fa3644 - Mining method: combined #### Resource Data - Category: measured - Tonnes: 290000 - Grade: 0.425 - Grade Unit: g/t - Contained Metal: 4 - Contained Unit: koz - Cutoff Grade: 100 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Measured underground resource for gold at a $100 CAD cutoff provides high confidence for mine planning. - Positive factor: Measured Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 0.425 Context: 290 #### Tags used in scoring **Measured Resource** Polarity: positive Definition: Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves. Why it applies: category is "measured" **Cut-off Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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 ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/selkirk-copper-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-38) Minto Project · silver #### Identity - Project: Minto Project - Commodity: silver - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:5f7245ec2324d9fa3644 - Mining method: combined #### Resource Data - Category: measured - Tonnes: 290000 - Grade: 3.5 - Grade Unit: g/t - Contained Metal: 32.8 - Contained Unit: koz - Cutoff Grade: 100 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Measured underground resource for silver at a $100 CAD cutoff provides high confidence for mine planning. - Positive factor: Measured Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 3.5 Context: 290 #### Tags used in scoring **Measured Resource** Polarity: positive Definition: Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves. Why it applies: category is "measured" **Cut-off Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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 ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/selkirk-copper-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-39) Minto Project · copper #### Identity - Project: Minto Project - Commodity: copper - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:c5de0157da9555ed6dcf - Mining method: combined #### Resource Data - Category: measured - Tonnes: 253000 - Grade: 1.042 - Grade Unit: % - Contained Metal: 5.8 - Contained Unit: mlbs - Cutoff Grade: 110 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Measured underground resource for copper at a $110 CAD cutoff provides high confidence for mine planning. - Positive factor: Measured Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 1.042 Context: 253 #### Tags used in scoring **Measured Resource** Polarity: positive Definition: Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves. Why it applies: category is "measured" **Cut-off Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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 ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/selkirk-copper-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-40) Minto Project · gold #### Identity - Project: Minto Project - Commodity: gold - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:c5de0157da9555ed6dcf - Mining method: combined #### Resource Data - Category: measured - Tonnes: 253000 - Grade: 0.45 - Grade Unit: g/t - Contained Metal: 3.7 - Contained Unit: koz - Cutoff Grade: 110 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Measured underground resource for gold at a $110 CAD cutoff provides high confidence for mine planning. - Positive factor: Measured Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 0.450 Context: 253 #### Tags used in scoring **Measured Resource** Polarity: positive Definition: Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves. Why it applies: category is "measured" **Cut-off Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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 ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/selkirk-copper-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-41) Minto Project · silver #### Identity - Project: Minto Project - Commodity: silver - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:c5de0157da9555ed6dcf - Mining method: combined #### Resource Data - Category: measured - Tonnes: 253000 - Grade: 3.7 - Grade Unit: g/t - Contained Metal: 30.4 - Contained Unit: koz - Cutoff Grade: 110 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Measured underground resource for silver at a $110 CAD cutoff provides high confidence for mine planning. - Positive factor: Measured Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 3.7 Context: 253 #### Tags used in scoring **Measured Resource** Polarity: positive Definition: Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves. Why it applies: category is "measured" **Cut-off Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-42) Minto Project · copper #### Identity - Project: Minto Project - Commodity: copper - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:4a42fcb33a0699867184 - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 29324000 - Grade: 1.071 - Grade Unit: % - Contained Metal: 692.1 - Contained Unit: mlbs - Cutoff Grade: 60 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Indicated underground resource for copper at a $60 CAD cutoff provides a strong base for economic studies. - Positive factor: Indicated Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 1.071 Context: 29,324 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-43) Minto Project · gold #### Identity - Project: Minto Project - Commodity: gold - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:4a42fcb33a0699867184 - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 29324000 - Grade: 0.447 - Grade Unit: g/t - Contained Metal: 421.4 - Contained Unit: koz - Cutoff Grade: 60 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Indicated underground resource for gold at a $60 CAD cutoff provides a strong base for economic studies. - Positive factor: Indicated Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 0.447 Context: 29,324 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-44) Minto Project · silver #### Identity - Project: Minto Project - Commodity: silver - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:4a42fcb33a0699867184 - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 29324000 - Grade: 4.08 - Grade Unit: g/t - Contained Metal: 3847.8 - Contained Unit: koz - Cutoff Grade: 60 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Indicated underground resource for silver at a $60 CAD cutoff provides a strong base for economic studies. - Positive factor: Indicated Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 4.08 Context: 29,324 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-45) Minto Project · copper #### Identity - Project: Minto Project - Commodity: copper - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:63051b339728acce1da3 - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 27526000 - Grade: 1.108 - Grade Unit: % - Contained Metal: 672.4 - Contained Unit: mlbs - Cutoff Grade: 70 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Indicated underground resource for copper at a $70 CAD cutoff provides a strong base for economic studies. - Positive factor: Indicated Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 1.108 Context: 27,526 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-46) Minto Project · gold #### Identity - Project: Minto Project - Commodity: gold - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:63051b339728acce1da3 - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 27526000 - Grade: 0.467 - Grade Unit: g/t - Contained Metal: 413.3 - Contained Unit: koz - Cutoff Grade: 70 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Indicated underground resource for gold at a $70 CAD cutoff provides a strong base for economic studies. - Positive factor: Indicated Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 0.467 Context: 27,526 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-47) Minto Project · silver #### Identity - Project: Minto Project - Commodity: silver - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:63051b339728acce1da3 - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 27526000 - Grade: 4.2 - Grade Unit: g/t - Contained Metal: 3751.2 - Contained Unit: koz - Cutoff Grade: 70 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Indicated underground resource for silver at a $70 CAD cutoff provides a strong base for economic studies. - Positive factor: Indicated Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 4.2 Context: 27,526 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-48) Minto Project · copper #### Identity - Project: Minto Project - Commodity: copper - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:e507767bc66df638ab07 - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 25679000 - Grade: 1.148 - Grade Unit: % - Contained Metal: 649.8 - Contained Unit: mlbs - Cutoff Grade: 80 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Indicated underground resource for copper at a $80 CAD cutoff provides a strong base for economic studies. - Positive factor: Indicated Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 1.148 Context: 25,679 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-49) Minto Project · gold #### Identity - Project: Minto Project - Commodity: gold - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:e507767bc66df638ab07 - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 25679000 - Grade: 0.489 - Grade Unit: g/t - Contained Metal: 403.7 - Contained Unit: koz - Cutoff Grade: 80 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Indicated underground resource for gold at a $80 CAD cutoff provides a strong base for economic studies. - Positive factor: Indicated Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 0.489 Context: 25,679 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-50) Minto Project · silver #### Identity - Project: Minto Project - Commodity: silver - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:e507767bc66df638ab07 - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 25679000 - Grade: 4.4 - Grade Unit: g/t - Contained Metal: 3637.8 - Contained Unit: koz - Cutoff Grade: 80 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Indicated underground resource for silver at a $80 CAD cutoff provides a strong base for economic studies. - Positive factor: Indicated Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 4.4 Context: 25,679 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-51) Minto Project · copper #### Identity - Project: Minto Project - Commodity: copper - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:362fe93790bbe9e216d9 - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 23747000 - Grade: 1.193 - Grade Unit: % - Contained Metal: 624.4 - Contained Unit: mlbs - Cutoff Grade: 90 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Indicated underground resource for copper at a $90 CAD cutoff provides a strong base for economic studies. - Positive factor: Indicated Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 1.193 Context: 23,747 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-52) Minto Project · gold #### Identity - Project: Minto Project - Commodity: gold - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:362fe93790bbe9e216d9 - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 23747000 - Grade: 0.514 - Grade Unit: g/t - Contained Metal: 392.4 - Contained Unit: koz - Cutoff Grade: 90 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Indicated underground resource for gold at a $90 CAD cutoff provides a strong base for economic studies. - Positive factor: Indicated Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 0.514 Context: 23,747 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-53) Minto Project · silver #### Identity - Project: Minto Project - Commodity: silver - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:362fe93790bbe9e216d9 - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 23747000 - Grade: 4.6 - Grade Unit: g/t - Contained Metal: 3510.1 - Contained Unit: koz - Cutoff Grade: 90 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Indicated underground resource for silver at a $90 CAD cutoff provides a strong base for economic studies. - Positive factor: Indicated Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 4.6 Context: 23,747 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-54) Minto Project · copper #### Identity - Project: Minto Project - Commodity: copper - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:088915445e2c63d4edb4 - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 21613000 - Grade: 1.246 - Grade Unit: % - Contained Metal: 593.7 - Contained Unit: mlbs - Cutoff Grade: 100 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Indicated underground resource for copper at a $100 CAD cutoff provides a strong base for economic studies. - Positive factor: Indicated Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 1.246 Context: 21,613 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-55) Minto Project · gold #### Identity - Project: Minto Project - Commodity: gold - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:088915445e2c63d4edb4 - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 21613000 - Grade: 0.544 - Grade Unit: g/t - Contained Metal: 378.1 - Contained Unit: koz - Cutoff Grade: 100 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Indicated underground resource for gold at a $100 CAD cutoff provides a strong base for economic studies. - Positive factor: Indicated Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 0.544 Context: 21,613 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-56) Minto Project · silver #### Identity - Project: Minto Project - Commodity: silver - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:088915445e2c63d4edb4 - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 21613000 - Grade: 4.8 - Grade Unit: g/t - Contained Metal: 3356.1 - Contained Unit: koz - Cutoff Grade: 100 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Indicated underground resource for silver at a $100 CAD cutoff provides a strong base for economic studies. - Positive factor: Indicated Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 4.8 Context: 21,613 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-57) Minto Project · copper #### Identity - Project: Minto Project - Commodity: copper - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:0f1098afdffe3d1ff4ec - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 19551000 - Grade: 1.303 - Grade Unit: % - Contained Metal: 561.7 - Contained Unit: mlbs - Cutoff Grade: 110 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Indicated underground resource for copper at a $110 CAD cutoff provides a strong base for economic studies. - Positive factor: Indicated Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 1.303 Context: 19,551 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-58) Minto Project · gold #### Identity - Project: Minto Project - Commodity: gold - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:0f1098afdffe3d1ff4ec - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 19551000 - Grade: 0.577 - Grade Unit: g/t - Contained Metal: 362.5 - Contained Unit: koz - Cutoff Grade: 110 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Indicated underground resource for gold at a $110 CAD cutoff provides a strong base for economic studies. - Positive factor: Indicated Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 0.577 Context: 19,551 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-59) Minto Project · silver #### Identity - Project: Minto Project - Commodity: silver - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:0f1098afdffe3d1ff4ec - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 19551000 - Grade: 5.1 - Grade Unit: g/t - Contained Metal: 3193.7 - Contained Unit: koz - Cutoff Grade: 110 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Indicated underground resource for silver at a $110 CAD cutoff provides a strong base for economic studies. - Positive factor: Indicated Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 5.1 Context: 19,551 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-60) Minto Project · copper #### Identity - Project: Minto Project - Commodity: copper - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:eca15c612b5379f7b6de - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 29704000 - Grade: 1.068 - Grade Unit: % - Contained Metal: 699.5 - Contained Unit: mlbs - Cutoff Grade: 60 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This combined Measured and Indicated underground resource for copper at a $60 CAD cutoff provides a robust base for economic studies. - Positive factor: Indicated Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 1.068 Context: 29,704 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-61) Minto Project · gold #### Identity - Project: Minto Project - Commodity: gold - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:eca15c612b5379f7b6de - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 29704000 - Grade: 0.446 - Grade Unit: g/t - Contained Metal: 426 - Contained Unit: koz - Cutoff Grade: 60 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This combined Measured and Indicated underground resource for gold at a $60 CAD cutoff provides a robust base for economic studies. - Positive factor: Indicated Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 0.446 Context: 29,704 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-62) Minto Project · silver #### Identity - Project: Minto Project - Commodity: silver - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:eca15c612b5379f7b6de - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 29704000 - Grade: 4.07 - Grade Unit: g/t - Contained Metal: 3886.1 - Contained Unit: koz - Cutoff Grade: 60 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This combined Measured and Indicated underground resource for silver at a $60 CAD cutoff provides a robust base for economic studies. - Positive factor: Indicated Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 4.07 Context: 29,704 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-63) Minto Project · copper #### Identity - Project: Minto Project - Commodity: copper - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:c7a3b4dfa363526bb84f - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 27894000 - Grade: 1.105 - Grade Unit: % - Contained Metal: 679.7 - Contained Unit: mlbs - Cutoff Grade: 70 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This combined Measured and Indicated underground resource for copper at a $70 CAD cutoff provides a robust base for economic studies. - Positive factor: Indicated Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 1.105 Context: 27,894 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-64) Minto Project · gold #### Identity - Project: Minto Project - Commodity: gold - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:c7a3b4dfa363526bb84f - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 27894000 - Grade: 0.466 - Grade Unit: g/t - Contained Metal: 417.9 - Contained Unit: koz - Cutoff Grade: 70 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This combined Measured and Indicated underground resource for gold at a $70 CAD cutoff provides a robust base for economic studies. - Positive factor: Indicated Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 0.466 Context: 27,894 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-65) Minto Project · silver #### Identity - Project: Minto Project - Commodity: silver - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:c7a3b4dfa363526bb84f - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 27894000 - Grade: 4.2 - Grade Unit: g/t - Contained Metal: 3788.9 - Contained Unit: koz - Cutoff Grade: 70 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This combined Measured and Indicated underground resource for silver at a $70 CAD cutoff provides a robust base for economic studies. - Positive factor: Indicated Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 4.2 Context: 27,894 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-66) Minto Project · copper #### Identity - Project: Minto Project - Commodity: copper - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:d2c5098e616a285d964c - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 26026000 - Grade: 1.145 - Grade Unit: % - Contained Metal: 656.9 - Contained Unit: mlbs - Cutoff Grade: 80 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This combined Measured and Indicated underground resource for copper at a $80 CAD cutoff provides a robust base for economic studies. - Positive factor: Indicated Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 1.145 Context: 26,026 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-67) Minto Project · gold #### Identity - Project: Minto Project - Commodity: gold - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:d2c5098e616a285d964c - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 26026000 - Grade: 0.488 - Grade Unit: g/t - Contained Metal: 408.1 - Contained Unit: koz - Cutoff Grade: 80 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This combined Measured and Indicated underground resource for gold at a $80 CAD cutoff provides a robust base for economic studies. - Positive factor: Indicated Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 0.488 Context: 26,026 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-68) Minto Project · silver #### Identity - Project: Minto Project - Commodity: silver - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:d2c5098e616a285d964c - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 26026000 - Grade: 4.4 - Grade Unit: g/t - Contained Metal: 3674.3 - Contained Unit: koz - Cutoff Grade: 80 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This combined Measured and Indicated underground resource for silver at a $80 CAD cutoff provides a robust base for economic studies. - Positive factor: Indicated Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 4.4 Context: 26,026 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-69) Minto Project · copper #### Identity - Project: Minto Project - Commodity: copper - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:f253991c519c3837ac84 - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 24073000 - Grade: 1.189 - Grade Unit: % - Contained Metal: 631.2 - Contained Unit: mlbs - Cutoff Grade: 90 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This combined Measured and Indicated underground resource for copper at a $90 CAD cutoff provides a robust base for economic studies. - Positive factor: Indicated Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 1.189 Context: 24,073 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-70) Minto Project · gold #### Identity - Project: Minto Project - Commodity: gold - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:f253991c519c3837ac84 - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 24073000 - Grade: 0.512 - Grade Unit: g/t - Contained Metal: 396.6 - Contained Unit: koz - Cutoff Grade: 90 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This combined Measured and Indicated underground resource for gold at a $90 CAD cutoff provides a robust base for economic studies. - Positive factor: Indicated Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 0.512 Context: 24,073 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-71) Minto Project · silver #### Identity - Project: Minto Project - Commodity: silver - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:f253991c519c3837ac84 - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 24073000 - Grade: 4.6 - Grade Unit: g/t - Contained Metal: 3545.2 - Contained Unit: koz - Cutoff Grade: 90 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This combined Measured and Indicated underground resource for silver at a $90 CAD cutoff provides a robust base for economic studies. - Positive factor: Indicated Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 4.6 Context: 24,073 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-72) Minto Project · copper #### Identity - Project: Minto Project - Commodity: copper - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:8d82eb617cc2f885faec - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 21904000 - Grade: 1.243 - Grade Unit: % - Contained Metal: 600 - Contained Unit: mlbs - Cutoff Grade: 100 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This combined Measured and Indicated underground resource for copper at a $100 CAD cutoff provides a robust base for economic studies. - Positive factor: Indicated Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 1.243 Context: 21,904 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-73) Minto Project · gold #### Identity - Project: Minto Project - Commodity: gold - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:8d82eb617cc2f885faec - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 21904000 - Grade: 0.543 - Grade Unit: g/t - Contained Metal: 382.1 - Contained Unit: koz - Cutoff Grade: 100 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This combined Measured and Indicated underground resource for gold at a $100 CAD cutoff provides a robust base for economic studies. - Positive factor: Indicated Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 0.543 Context: 21,904 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-74) Minto Project · silver #### Identity - Project: Minto Project - Commodity: silver - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:8d82eb617cc2f885faec - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 21904000 - Grade: 4.8 - Grade Unit: g/t - Contained Metal: 3389 - Contained Unit: koz - Cutoff Grade: 100 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This combined Measured and Indicated underground resource for silver at a $100 CAD cutoff provides a robust base for economic studies. - Positive factor: Indicated Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 4.8 Context: 21,904 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-75) Minto Project · copper #### Identity - Project: Minto Project - Commodity: copper - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:26e65fcace10ec146896 - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 19803000 - Grade: 1.3 - Grade Unit: % - Contained Metal: 567.5 - Contained Unit: mlbs - Cutoff Grade: 110 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This combined Measured and Indicated underground resource for copper at a $110 CAD cutoff provides a robust base for economic studies. - Positive factor: Indicated Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 1.300 Context: 19,803 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-76) Minto Project · gold #### Identity - Project: Minto Project - Commodity: gold - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:26e65fcace10ec146896 - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 19803000 - Grade: 0.575 - Grade Unit: g/t - Contained Metal: 366.2 - Contained Unit: koz - Cutoff Grade: 110 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This combined Measured and Indicated underground resource for gold at a $110 CAD cutoff provides a robust base for economic studies. - Positive factor: Indicated Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 0.575 Context: 19,803 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-77) Minto Project · silver #### Identity - Project: Minto Project - Commodity: silver - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:26e65fcace10ec146896 - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 19803000 - Grade: 5.1 - Grade Unit: g/t - Contained Metal: 3224.1 - Contained Unit: koz - Cutoff Grade: 110 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This combined Measured and Indicated underground resource for silver at a $110 CAD cutoff provides a robust base for economic studies. - Positive factor: Indicated Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 5.1 Context: 19,803 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-78) Minto Project · copper #### Identity - Project: Minto Project - Commodity: copper - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:da90aa26b946a546be0f - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 11810000 - Grade: 0.836 - Grade Unit: % - Contained Metal: 217.6 - Contained Unit: mlbs - Cutoff Grade: 60 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Inferred underground resource for copper at a $60 CAD cutoff adds to the overall resource base, indicating potential for future conversion to higher confidence categories. - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed - Negative factor: Inferred Resource Evidence · table > 0.836 Context: 11,810 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-79) Minto Project · gold #### Identity - Project: Minto Project - Commodity: gold - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:da90aa26b946a546be0f - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 11810000 - Grade: 0.323 - Grade Unit: g/t - Contained Metal: 122.5 - Contained Unit: koz - Cutoff Grade: 60 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Inferred underground resource for gold at a $60 CAD cutoff adds to the overall resource base, indicating potential for future conversion to higher confidence categories. - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed - Negative factor: Inferred Resource Evidence · table > 0.323 Context: 11,810 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-80) Minto Project · silver #### Identity - Project: Minto Project - Commodity: silver - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:da90aa26b946a546be0f - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 11810000 - Grade: 3.3 - Grade Unit: g/t - Contained Metal: 1238 - Contained Unit: koz - Cutoff Grade: 60 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Inferred underground resource for silver at a $60 CAD cutoff adds to the overall resource base, indicating potential for future conversion to higher confidence categories. - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed - Negative factor: Inferred Resource Evidence · table > 3.3 Context: 11,810 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-81) Minto Project · copper #### Identity - Project: Minto Project - Commodity: copper - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:fa2e243661f9798d1a60 - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 10741000 - Grade: 0.874 - Grade Unit: % - Contained Metal: 206.9 - Contained Unit: mlbs - Cutoff Grade: 70 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Inferred underground resource for copper at a $70 CAD cutoff adds to the overall resource base, indicating potential for future conversion to higher confidence categories. - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed - Negative factor: Inferred Resource Evidence · table > 0.874 Context: 10,741 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-82) Minto Project · gold #### Identity - Project: Minto Project - Commodity: gold - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:fa2e243661f9798d1a60 - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 10741000 - Grade: 0.34 - Grade Unit: g/t - Contained Metal: 117.6 - Contained Unit: koz - Cutoff Grade: 70 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Inferred underground resource for gold at a $70 CAD cutoff adds to the overall resource base, indicating potential for future conversion to higher confidence categories. - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed - Negative factor: Inferred Resource Evidence · table > 0.340 Context: 10,741 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-83) Minto Project · silver #### Identity - Project: Minto Project - Commodity: silver - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:fa2e243661f9798d1a60 - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 10741000 - Grade: 3.4 - Grade Unit: g/t - Contained Metal: 1175.8 - Contained Unit: koz - Cutoff Grade: 70 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Inferred underground resource for silver at a $70 CAD cutoff adds to the overall resource base, indicating potential for future conversion to higher confidence categories. - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed - Negative factor: Inferred Resource Evidence · table > 3.4 Context: 10,741 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-84) Minto Project · copper #### Identity - Project: Minto Project - Commodity: copper - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:078d60ddbdd059e1b74f - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 9812000 - Grade: 0.907 - Grade Unit: % - Contained Metal: 196.3 - Contained Unit: mlbs - Cutoff Grade: 80 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Inferred underground resource for copper at a $80 CAD cutoff adds to the overall resource base, indicating potential for future conversion to higher confidence categories. - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed - Negative factor: Inferred Resource Evidence · table > 0.907 Context: 9,812 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-85) Minto Project · gold #### Identity - Project: Minto Project - Commodity: gold - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:078d60ddbdd059e1b74f - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 9812000 - Grade: 0.356 - Grade Unit: g/t - Contained Metal: 112.2 - Contained Unit: koz - Cutoff Grade: 80 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Inferred underground resource for gold at a $80 CAD cutoff adds to the overall resource base, indicating potential for future conversion to higher confidence categories. - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed - Negative factor: Inferred Resource Evidence · table > 0.356 Context: 9,812 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-86) Minto Project · silver #### Identity - Project: Minto Project - Commodity: silver - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:078d60ddbdd059e1b74f - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 9812000 - Grade: 3.5 - Grade Unit: g/t - Contained Metal: 1112.7 - Contained Unit: koz - Cutoff Grade: 80 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Inferred underground resource for silver at a $80 CAD cutoff adds to the overall resource base, indicating potential for future conversion to higher confidence categories. - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed - Negative factor: Inferred Resource Evidence · table > 3.5 Context: 9,812 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-87) Minto Project · copper #### Identity - Project: Minto Project - Commodity: copper - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:9cc9f61cb2795057c9a8 - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 8511000 - Grade: 0.959 - Grade Unit: % - Contained Metal: 179.9 - Contained Unit: mlbs - Cutoff Grade: 90 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Inferred underground resource for copper at a $90 CAD cutoff adds to the overall resource base, indicating potential for future conversion to higher confidence categories. - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed - Negative factor: Inferred Resource Evidence · table > 0.959 Context: 8,511 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-88) Minto Project · gold #### Identity - Project: Minto Project - Commodity: gold - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:9cc9f61cb2795057c9a8 - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 8511000 - Grade: 0.381 - Grade Unit: g/t - Contained Metal: 104.2 - Contained Unit: koz - Cutoff Grade: 90 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Inferred underground resource for gold at a $90 CAD cutoff adds to the overall resource base, indicating potential for future conversion to higher confidence categories. - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed - Negative factor: Inferred Resource Evidence · table > 0.381 Context: 8,511 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-89) Minto Project · silver #### Identity - Project: Minto Project - Commodity: silver - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:9cc9f61cb2795057c9a8 - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 8511000 - Grade: 3.7 - Grade Unit: g/t - Contained Metal: 1018.3 - Contained Unit: koz - Cutoff Grade: 90 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Inferred underground resource for silver at a $90 CAD cutoff adds to the overall resource base, indicating potential for future conversion to higher confidence categories. - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed - Negative factor: Inferred Resource Evidence · table > 3.7 Context: 8,511 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-90) Minto Project · copper #### Identity - Project: Minto Project - Commodity: copper - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:f521e82d1328248f37d7 - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 7171000 - Grade: 1.017 - Grade Unit: % - Contained Metal: 160.7 - Contained Unit: mlbs - Cutoff Grade: 100 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Inferred underground resource for copper at a $100 CAD cutoff adds to the overall resource base, indicating potential for future conversion to higher confidence categories. - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed - Negative factor: Inferred Resource Evidence · table > 1.017 Context: 7,171 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-91) Minto Project · gold #### Identity - Project: Minto Project - Commodity: gold - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:f521e82d1328248f37d7 - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 7171000 - Grade: 0.418 - Grade Unit: g/t - Contained Metal: 96.3 - Contained Unit: koz - Cutoff Grade: 100 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Inferred underground resource for gold at a $100 CAD cutoff adds to the overall resource base, indicating potential for future conversion to higher confidence categories. - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed - Negative factor: Inferred Resource Evidence · table > 0.418 Context: 7,171 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-92) Minto Project · silver #### Identity - Project: Minto Project - Commodity: silver - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:f521e82d1328248f37d7 - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 7171000 - Grade: 4 - Grade Unit: g/t - Contained Metal: 919.7 - Contained Unit: koz - Cutoff Grade: 100 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Inferred underground resource for silver at a $100 CAD cutoff adds to the overall resource base, indicating potential for future conversion to higher confidence categories. - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed - Negative factor: Inferred Resource Evidence · table > 4.0 Context: 7,171 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-93) Minto Project · copper #### Identity - Project: Minto Project - Commodity: copper - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:13e1dae3eb08e2969868 - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 6139000 - Grade: 1.07 - Grade Unit: % - Contained Metal: 144.9 - Contained Unit: mlbs - Cutoff Grade: 110 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Inferred underground resource for copper at a $110 CAD cutoff adds to the overall resource base, indicating potential for future conversion to higher confidence categories. - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed - Negative factor: Inferred Resource Evidence · table > 1.070 Context: 6,139 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-94) Minto Project · gold #### Identity - Project: Minto Project - Commodity: gold - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:13e1dae3eb08e2969868 - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 6139000 - Grade: 0.45 - Grade Unit: g/t - Contained Metal: 88.9 - Contained Unit: koz - Cutoff Grade: 110 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Inferred underground resource for gold at a $110 CAD cutoff adds to the overall resource base, indicating potential for future conversion to higher confidence categories. - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed - Negative factor: Inferred Resource Evidence · table > 0.450 Context: 6,139 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-95) Minto Project · silver #### Identity - Project: Minto Project - Commodity: silver - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:13e1dae3eb08e2969868 - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 6139000 - Grade: 4.2 - Grade Unit: g/t - Contained Metal: 833.3 - Contained Unit: koz - Cutoff Grade: 110 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Inferred underground resource for silver at a $110 CAD cutoff adds to the overall resource base, indicating potential for future conversion to higher confidence categories. - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed - Negative factor: Inferred Resource Evidence · table > 4.2 Context: 6,139 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-96) Minto Project · copper #### Identity - Project: Minto Project - Commodity: copper - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:634f65de5cfa97e7b0dc - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 23444000 - Grade: 0.566 - Grade Unit: % - Contained Metal: 292.7 - Contained Unit: mlbs - Cutoff Grade: 25 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Indicated open pit resource for copper at a $25 CAD cutoff contributes to the overall M&I growth, demonstrating increased confidence in the project's open pit potential. - Positive factor: Indicated Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 0.566 Context: 23,444 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-97) Minto Project · gold #### Identity - Project: Minto Project - Commodity: gold - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:634f65de5cfa97e7b0dc - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 23444000 - Grade: 0.165 - Grade Unit: g/t - Contained Metal: 124.6 - Contained Unit: koz - Cutoff Grade: 25 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Indicated open pit resource for gold at a $25 CAD cutoff contributes to the overall M&I growth, demonstrating increased confidence in the project's open pit potential. - Positive factor: Indicated Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 0.165 Context: 23,444 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-98) Minto Project · silver #### Identity - Project: Minto Project - Commodity: silver - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:634f65de5cfa97e7b0dc - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 23444000 - Grade: 1.8 - Grade Unit: g/t - Contained Metal: 1336.9 - Contained Unit: koz - Cutoff Grade: 25 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Indicated open pit resource for silver at a $25 CAD cutoff contributes to the overall M&I growth, demonstrating increased confidence in the project's open pit potential. - Positive factor: Indicated Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 1.8 Context: 23,444 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-99) Minto Project · copper #### Identity - Project: Minto Project - Commodity: copper - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:467c66eb5f0730f226e3 - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 21779000 - Grade: 0.589 - Grade Unit: % - Contained Metal: 282.8 - Contained Unit: mlbs - Cutoff Grade: 30 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Indicated open pit resource for copper at a $30 CAD cutoff contributes to the overall M&I growth, demonstrating increased confidence in the project's open pit potential. - Positive factor: Indicated Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 0.589 Context: 21,779 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-100) Minto Project · gold #### Identity - Project: Minto Project - Commodity: gold - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:467c66eb5f0730f226e3 - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 21779000 - Grade: 0.174 - Grade Unit: g/t - Contained Metal: 121.7 - Contained Unit: koz - Cutoff Grade: 30 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Indicated open pit resource for gold at a $30 CAD cutoff contributes to the overall M&I growth, demonstrating increased confidence in the project's open pit potential. - Positive factor: Indicated Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 0.174 Context: 21,779 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-101) Minto Project · silver #### Identity - Project: Minto Project - Commodity: silver - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:467c66eb5f0730f226e3 - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 21779000 - Grade: 1.8 - Grade Unit: g/t - Contained Metal: 1294.3 - Contained Unit: koz - Cutoff Grade: 30 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Indicated open pit resource for silver at a $30 CAD cutoff contributes to the overall M&I growth, demonstrating increased confidence in the project's open pit potential. - Positive factor: Indicated Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 1.8 Context: 21,779 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-102) Minto Project · copper #### Identity - Project: Minto Project - Commodity: copper - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:a07c36abb41d2d49d32d - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 18455000 - Grade: 0.638 - Grade Unit: % - Contained Metal: 259.5 - Contained Unit: mlbs - Cutoff Grade: 40 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Indicated open pit resource for copper at a $40 CAD cutoff contributes to the overall M&I growth, demonstrating increased confidence in the project's open pit potential. - Positive factor: Indicated Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 0.638 Context: 18,455 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-103) Minto Project · gold #### Identity - Project: Minto Project - Commodity: gold - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:a07c36abb41d2d49d32d - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 18455000 - Grade: 0.193 - Grade Unit: g/t - Contained Metal: 114.6 - Contained Unit: koz - Cutoff Grade: 40 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Indicated open pit resource for gold at a $40 CAD cutoff contributes to the overall M&I growth, demonstrating increased confidence in the project's open pit potential. - Positive factor: Indicated Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 0.193 Context: 18,455 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-104) Minto Project · silver #### Identity - Project: Minto Project - Commodity: silver - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:a07c36abb41d2d49d32d - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 18455000 - Grade: 2 - Grade Unit: g/t - Contained Metal: 1194.2 - Contained Unit: koz - Cutoff Grade: 40 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Indicated open pit resource for silver at a $40 CAD cutoff contributes to the overall M&I growth, demonstrating increased confidence in the project's open pit potential. - Positive factor: Indicated Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 2.0 Context: 18,455 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-105) Minto Project · copper #### Identity - Project: Minto Project - Commodity: copper - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:9d0b323bb794659230c6 - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 15070000 - Grade: 0.697 - Grade Unit: % - Contained Metal: 231.7 - Contained Unit: mlbs - Cutoff Grade: 50 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Indicated open pit resource for copper at a $50 CAD cutoff contributes to the overall M&I growth, demonstrating increased confidence in the project's open pit potential. - Positive factor: Indicated Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 0.697 Context: 15,070 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-106) Minto Project · gold #### Identity - Project: Minto Project - Commodity: gold - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:9d0b323bb794659230c6 - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 15070000 - Grade: 0.218 - Grade Unit: g/t - Contained Metal: 105.8 - Contained Unit: koz - Cutoff Grade: 50 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Indicated open pit resource for gold at a $50 CAD cutoff contributes to the overall M&I growth, demonstrating increased confidence in the project's open pit potential. - Positive factor: Indicated Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 0.218 Context: 15,070 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-107) Minto Project · silver #### Identity - Project: Minto Project - Commodity: silver - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:9d0b323bb794659230c6 - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 15070000 - Grade: 2.2 - Grade Unit: g/t - Contained Metal: 1069.9 - Contained Unit: koz - Cutoff Grade: 50 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Indicated open pit resource for silver at a $50 CAD cutoff contributes to the overall M&I growth, demonstrating increased confidence in the project's open pit potential. - Positive factor: Indicated Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 2.2 Context: 15,070 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-108) Minto Project · copper #### Identity - Project: Minto Project - Commodity: copper - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:44878323d6e16253a10a - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 11961000 - Grade: 0.767 - Grade Unit: % - Contained Metal: 202.1 - Contained Unit: mlbs - Cutoff Grade: 60 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Indicated open pit resource for copper at a $60 CAD cutoff contributes to the overall M&I growth, demonstrating increased confidence in the project's open pit potential. - Positive factor: Indicated Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 0.767 Context: 11,961 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-109) Minto Project · gold #### Identity - Project: Minto Project - Commodity: gold - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:44878323d6e16253a10a - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 11961000 - Grade: 0.249 - Grade Unit: g/t - Contained Metal: 95.9 - Contained Unit: koz - Cutoff Grade: 60 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Indicated open pit resource for gold at a $60 CAD cutoff contributes to the overall M&I growth, demonstrating increased confidence in the project's open pit potential. - Positive factor: Indicated Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 0.249 Context: 11,961 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-110) Minto Project · silver #### Identity - Project: Minto Project - Commodity: silver - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:44878323d6e16253a10a - Mining method: combined #### Resource Data - Category: indicated - Tonnes: 11961000 - Grade: 2.4 - Grade Unit: g/t - Contained Metal: 934.2 - Contained Unit: koz - Cutoff Grade: 60 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Indicated open pit resource for silver at a $60 CAD cutoff contributes to the overall M&I growth, demonstrating increased confidence in the project's open pit potential. - Positive factor: Indicated Resource - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed Evidence · table > 2.4 Context: 11,961 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-111) Minto Project · copper #### Identity - Project: Minto Project - Commodity: copper - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:2f3c4d058fa04ab5ef4f - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 7673000 - Grade: 0.521 - Grade Unit: % - Contained Metal: 88.1 - Contained Unit: mlbs - Cutoff Grade: 25 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Inferred open pit resource for copper at a $25 CAD cutoff adds to the overall resource base, indicating potential for future conversion to higher confidence categories. - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed - Negative factor: Inferred Resource Evidence · table > 0.521 Context: 7,673 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-112) Minto Project · gold #### Identity - Project: Minto Project - Commodity: gold - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:2f3c4d058fa04ab5ef4f - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 7673000 - Grade: 0.125 - Grade Unit: g/t - Contained Metal: 30.9 - Contained Unit: koz - Cutoff Grade: 25 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Inferred open pit resource for gold at a $25 CAD cutoff adds to the overall resource base, indicating potential for future conversion to higher confidence categories. - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed - Negative factor: Inferred Resource Evidence · table > 0.125 Context: 7,673 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-113) Minto Project · silver #### Identity - Project: Minto Project - Commodity: silver - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:2f3c4d058fa04ab5ef4f - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 7673000 - Grade: 1.5 - Grade Unit: g/t - Contained Metal: 369.9 - Contained Unit: koz - Cutoff Grade: 25 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Inferred open pit resource for silver at a $25 CAD cutoff adds to the overall resource base, indicating potential for future conversion to higher confidence categories. - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed - Negative factor: Inferred Resource Evidence · table > 1.5 Context: 7,673 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-114) Minto Project · copper #### Identity - Project: Minto Project - Commodity: copper - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:32acf4e02f23dfb7c0e9 - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 7052000 - Grade: 0.546 - Grade Unit: % - Contained Metal: 85 - Contained Unit: mlbs - Cutoff Grade: 30 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Inferred open pit resource for copper at a $30 CAD cutoff adds to the overall resource base, indicating potential for future conversion to higher confidence categories. - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed - Negative factor: Inferred Resource Evidence · table > 0.546 Context: 7,052 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-115) Minto Project · gold #### Identity - Project: Minto Project - Commodity: gold - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:32acf4e02f23dfb7c0e9 - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 7052000 - Grade: 0.133 - Grade Unit: g/t - Contained Metal: 30.1 - Contained Unit: koz - Cutoff Grade: 30 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Inferred open pit resource for gold at a $30 CAD cutoff adds to the overall resource base, indicating potential for future conversion to higher confidence categories. - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed - Negative factor: Inferred Resource Evidence · table > 0.133 Context: 7,052 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-116) Minto Project · silver #### Identity - Project: Minto Project - Commodity: silver - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:32acf4e02f23dfb7c0e9 - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 7052000 - Grade: 1.6 - Grade Unit: g/t - Contained Metal: 353.8 - Contained Unit: koz - Cutoff Grade: 30 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Inferred open pit resource for silver at a $30 CAD cutoff adds to the overall resource base, indicating potential for future conversion to higher confidence categories. - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed - Negative factor: Inferred Resource Evidence · table > 1.6 Context: 7,052 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-117) Minto Project · copper #### Identity - Project: Minto Project - Commodity: copper - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:30d069755f26f3c9e7fe - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 5850000 - Grade: 0.599 - Grade Unit: % - Contained Metal: 77.2 - Contained Unit: mlbs - Cutoff Grade: 40 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Inferred open pit resource for copper at a $40 CAD cutoff adds to the overall resource base, indicating potential for future conversion to higher confidence categories. - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed - Negative factor: Inferred Resource Evidence · table > 0.599 Context: 5,850 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-118) Minto Project · gold #### Identity - Project: Minto Project - Commodity: gold - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:30d069755f26f3c9e7fe - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 5850000 - Grade: 0.149 - Grade Unit: g/t - Contained Metal: 28.1 - Contained Unit: koz - Cutoff Grade: 40 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Inferred open pit resource for gold at a $40 CAD cutoff adds to the overall resource base, indicating potential for future conversion to higher confidence categories. - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed - Negative factor: Inferred Resource Evidence · table > 0.149 Context: 5,850 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-119) Minto Project · silver #### Identity - Project: Minto Project - Commodity: silver - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:30d069755f26f3c9e7fe - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 5850000 - Grade: 1.7 - Grade Unit: g/t - Contained Metal: 320.8 - Contained Unit: koz - Cutoff Grade: 40 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Inferred open pit resource for silver at a $40 CAD cutoff adds to the overall resource base, indicating potential for future conversion to higher confidence categories. - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed - Negative factor: Inferred Resource Evidence · table > 1.7 Context: 5,850 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-120) Minto Project · copper #### Identity - Project: Minto Project - Commodity: copper - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:8dbe2905ffb515740c20 - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 4517000 - Grade: 0.669 - Grade Unit: % - Contained Metal: 66.6 - Contained Unit: mlbs - Cutoff Grade: 50 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Inferred open pit resource for copper at a $50 CAD cutoff adds to the overall resource base, indicating potential for future conversion to higher confidence categories. - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed - Negative factor: Inferred Resource Evidence · table > 0.669 Context: 4,517 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-121) Minto Project · gold #### Identity - Project: Minto Project - Commodity: gold - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:8dbe2905ffb515740c20 - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 4517000 - Grade: 0.175 - Grade Unit: g/t - Contained Metal: 25.5 - Contained Unit: koz - Cutoff Grade: 50 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Inferred open pit resource for gold at a $50 CAD cutoff adds to the overall resource base, indicating potential for future conversion to higher confidence categories. - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed - Negative factor: Inferred Resource Evidence · table > 0.175 Context: 4,517 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-122) Minto Project · silver #### Identity - Project: Minto Project - Commodity: silver - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:8dbe2905ffb515740c20 - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 4517000 - Grade: 1.9 - Grade Unit: g/t - Contained Metal: 272.7 - Contained Unit: koz - Cutoff Grade: 50 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Inferred open pit resource for silver at a $50 CAD cutoff adds to the overall resource base, indicating potential for future conversion to higher confidence categories. - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed - Negative factor: Inferred Resource Evidence · table > 1.9 Context: 4,517 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-123) Minto Project · copper #### Identity - Project: Minto Project - Commodity: copper - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:02b75e094f1821700086 - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 3209000 - Grade: 0.767 - Grade Unit: % - Contained Metal: 54.3 - Contained Unit: mlbs - Cutoff Grade: 60 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Inferred open pit resource for copper at a $60 CAD cutoff adds to the overall resource base, indicating potential for future conversion to higher confidence categories. - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed - Negative factor: Inferred Resource Evidence · table > 0.767 Context: 3,209 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-124) Minto Project · gold #### Identity - Project: Minto Project - Commodity: gold - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:02b75e094f1821700086 - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 3209000 - Grade: 0.217 - Grade Unit: g/t - Contained Metal: 22.4 - Contained Unit: koz - Cutoff Grade: 60 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Inferred open pit resource for gold at a $60 CAD cutoff adds to the overall resource base, indicating potential for future conversion to higher confidence categories. - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed - Negative factor: Inferred Resource Evidence · table > 0.217 Context: 3,209 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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-announces-updated-mineral-resource-estimate-with-182-increase-in--ed2ea9dd-12ca-4a32-b904-b78de100b2ba#fact-resource-facts-125) Minto Project · silver #### Identity - Project: Minto Project - Commodity: silver - Region: canada\_yt - Reported Region: Yukon, Canada - Ticker: SCMI #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Sue Bird - Resource group id: resource:02b75e094f1821700086 - Mining method: combined #### Resource Data - Category: inferred - Tonnes: 3209000 - Grade: 2.1 - Grade Unit: g/t - Contained Metal: 218 - Contained Unit: koz - Cutoff Grade: 60 - Cutoff Unit: CAD$ #### Prior Estimate - Resource Date: 2026-06-10 #### Metal Equivalent - Assumptions Disclosed: Yes #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: This Inferred open pit resource for silver at a $60 CAD cutoff adds to the overall resource base, indicating potential for future conversion to higher confidence categories. - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed - Negative factor: Inferred Resource Evidence · table > 2.1 Context: 3,209 #### 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 Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is 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 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **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.