# Murray Brook Minerals Releases Updated Resource Estimate for Its Legacy Cu-Ag Deposit Canonical Atlas analysis: https://atlas-staging.minestarters.com/news/murray-brook-minerals-releases-updated-resource-estimate-for-its-legacy-cu-ag-de--27a40805-5807-4f66-9f43-1d03f2db4356 Original source: https://orestocks.com/company/PUMA.V/press-releases/5284257746867254 Publisher: orestocks Original announcement: 2026-04-22T16:02:00.000Z Analysis by Minestarters Atlas Atlas analysis published: 2026-10-01T04:12:01.023Z Atlas analysis updated: 2026-10-01T04:12:01.023Z - Company: Puma Exploration Inc. - Ticker: PUMA - Exchange: TSXV - Region: New Brunswick, Canada - Primary commodity: Copper - Secondary commodities: Silver, Gold, Zinc - Document categories: Resource update, Capital raise - Extracted: 2026-10-01 04:12:01 UTC Narrative sentiment: 0.40 · Bullish ## Minestarters Atlas summary Puma Exploration's subsidiary, Murray Brook Minerals, has released an updated NI 43-101 resource estimate for the Legacy Cu-Ag project in New Brunswick, outlining 930,000 tonnes of Inferred resources. The company also closed a $250,000 non-brokered flow-through private placement to fund further exploration. Reasoning: The release provides a formal updated resource estimate for the Legacy Project and announces a successful flow-through private placement, though the resource remains entirely in the speculative Inferred category. - Positive factor: Updated NI 43-101 technical report provides formal resource baseline - Positive factor: Significant expansion potential noted at depth - Positive factor: Successful private placement of $250,000 completed - Negative factor: Resource is 100% Inferred category - Negative factor: Based solely on historical drilling results - Negative factor: Resource is constrained to near-surface pit shell Facts used in scoring: 5 ## Classification and evidence **Inferred Resource** Polarity: negative Definition: Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone. Why it applies: The entire 930,000 tonne resource is classified as Inferred. Evidence · text > outlines a 930,000 tonnes inferred resource **NI 43-101 Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with NI 43-101 \(Canada\) — high reporting standard. Why it applies: The resource estimate is part of an updated NI 43-101 Technical Report. Evidence · text > received an updated NI 43-101 Technical Report **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: Dr. Gilles Arseneau, P.Geo is named as the competent person. Evidence · text > prepared by Dr. Gilles Arseneau, P. Geo ## Extracted facts Stored fact records: 5. Some facts used in scoring do not have a stored record. ## Resource Estimates (5) ### inferred [Link to this fact](https://atlas-staging.minestarters.com/news/murray-brook-minerals-releases-updated-resource-estimate-for-its-legacy-cu-ag-de--27a40805-5807-4f66-9f43-1d03f2db4356#fact-resource-facts-0) Legacy Project · copper #### Identity - Project: Legacy Project - Commodity: copper - Region: canada\_nb - Reported Region: New Brunswick, Canada - Ticker: PUMA #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Dr. Gilles Arseneau - Resource group id: resource:c5ae2cee32983c7cd547 - Deposit or zone: Legacy Deposit - Mining method: combined - Material type: in pit - Ownership percent: 100 % - Resource basis: gross #### Resource Data - Category: inferred - Tonnes: 930000 - Grade: 0.66 - Grade Unit: % - Contained Metal: 13400 - Contained Unit: x1000 lb - Cutoff Grade: 10 - Cutoff Unit: US$ per tonne #### Prior Estimate - Resource Date: 2025-11-28 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-04-22T00:00:00.000Z Reasoning: Standard inferred resource grade for a copper skarn project. - Positive factor: Defined within a Whittle optimized pit shell - Negative factor: Inferred category only Evidence · table > 0.66 Context: 930 #### 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 ### inferred [Link to this fact](https://atlas-staging.minestarters.com/news/murray-brook-minerals-releases-updated-resource-estimate-for-its-legacy-cu-ag-de--27a40805-5807-4f66-9f43-1d03f2db4356#fact-resource-facts-1) Legacy Project · silver #### Identity - Project: Legacy Project - Commodity: silver - Region: canada\_nb - Reported Region: New Brunswick, Canada - Ticker: PUMA #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Dr. Gilles Arseneau - Resource group id: resource:c5ae2cee32983c7cd547 - Deposit or zone: Legacy Deposit - Mining method: combined - Material type: in pit - Ownership percent: 100 % - Resource basis: gross #### Resource Data - Category: inferred - Tonnes: 930000 - Grade: 3.65 - Grade Unit: g/t - Contained Metal: 110 - Contained Unit: x1000 oz - Cutoff Grade: 10 - Cutoff Unit: US$ per tonne #### Prior Estimate - Resource Date: 2025-11-28 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-04-22T00:00:00.000Z Reasoning: Silver is a significant byproduct in this resource estimate. - Negative factor: Inferred category only Evidence · table > 3.65 Context: 930 #### 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 ### Fact 3 [Link to this fact](https://atlas-staging.minestarters.com/news/murray-brook-minerals-releases-updated-resource-estimate-for-its-legacy-cu-ag-de--27a40805-5807-4f66-9f43-1d03f2db4356#fact-resource-facts-2) Legacy Project #### Identity - Project: Legacy Project - Region: canada\_nb - Reported Region: New Brunswick, Canada - Ticker: PUMA #### Resource scope - Reporting standards: ni\_43\_101 - Resource group id: resource:91ebbdff98cb8cf201eb - Mining method: combined - Ownership percent: 100 % #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-04-22T00:00:00.000Z Reasoning: Successful capital raise to fund exploration. - Positive factor: Non-brokered offering - Positive factor: Funds advance exploration Evidence · text > $250,000 #### Tags used in scoring **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 **NI 43-101 Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with NI 43-101 \(Canada\) — high reporting standard. Why it applies: reporting\_standards includes ni\_43\_101 **No Contained Metal** Polarity: negative Definition: Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting. Why it applies: contained\_metal was not reported **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 ### inferred [Link to this fact](https://atlas-staging.minestarters.com/news/murray-brook-minerals-releases-updated-resource-estimate-for-its-legacy-cu-ag-de--27a40805-5807-4f66-9f43-1d03f2db4356#fact-resource-facts-3) Legacy Project · copper #### Identity - Project: Legacy Project - Commodity: copper - Region: canada\_nb - Reported Region: New Brunswick, Canada - Ticker: PUMA #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Dr. Gilles Arseneau - Resource group id: resource:f4c3181fd178767745c7 - Deposit or zone: Legacy Deposit - Mining method: combined - Material type: in pit - Ownership percent: 100 % - Resource basis: gross #### Resource Data - Category: inferred - Tonnes: 10 - Grade: 3.65 - Grade Unit: x1000 lb - Cutoff Grade: 10 - Cutoff Unit: US$ per tonne #### Prior Estimate - Resource Date: 2025-11-28 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-04-22T00:00:00.000Z Reasoning: Standard inferred resource grade for a copper skarn project. \(Expanded from multi-commodity resource table for completeness.\) - Positive factor: Defined within a Whittle optimized pit shell - Negative factor: Inferred category only Evidence · table > 3.65 Context: > 10 #### 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 **No Contained Metal** Polarity: negative Definition: Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting. Why it applies: contained\_metal was not reported **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 ### inferred [Link to this fact](https://atlas-staging.minestarters.com/news/murray-brook-minerals-releases-updated-resource-estimate-for-its-legacy-cu-ag-de--27a40805-5807-4f66-9f43-1d03f2db4356#fact-resource-facts-4) Legacy Project · silver #### Identity - Project: Legacy Project - Commodity: silver - Region: canada\_nb - Reported Region: New Brunswick, Canada - Ticker: PUMA #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Dr. Gilles Arseneau - Resource group id: resource:f4c3181fd178767745c7 - Deposit or zone: Legacy Deposit - Mining method: combined - Material type: in pit - Ownership percent: 100 % - Resource basis: gross #### Resource Data - Category: inferred - Tonnes: 10 - Grade: 13400 - Grade Unit: x1000 oz - Cutoff Grade: 10 - Cutoff Unit: US$ per tonne #### Prior Estimate - Resource Date: 2025-11-28 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-04-22T00:00:00.000Z Reasoning: Standard inferred resource grade for a copper skarn project. \(Expanded from multi-commodity resource table for completeness.\) - Positive factor: Defined within a Whittle optimized pit shell - Negative factor: Inferred category only Evidence · table > 13,400 Context: > 10 #### 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 **No Contained Metal** Polarity: negative Definition: Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting. Why it applies: contained\_metal was not reported **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 ## 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.