# Western Exploration Announces Positive Preliminary Economic Assessment for the Doby George Resource at the Aura Project Canonical Atlas analysis: https://atlas-extractions.minestarters.com/news/western-exploration-announces-positive-preliminary-economic-assessment-for-the-d--e2c4c9ec-6d04-4195-87b0-8b57f6733183 Original source: https://money.tmx.com/en/quote/WEX/news/6995955429124812/western-exploration-announces-positive-preliminary-economic-assessment-for-the-d Publisher: tmx Original announcement: 2025-05-08T11:00:00.000Z Analysis by Minestarters Atlas Atlas analysis published: Unknown date Atlas analysis updated: Unknown date - Company: Western Exploration - Ticker: WEX - Exchange: TSX - Region: Nevada - Primary commodity: Gold - Secondary commodities: None reported - Document categories: Metallurgy, Resource update, Other - Extracted: 2026-09-15 07:13:57 UTC Narrative sentiment: 0.70 · Bullish ## Minestarters Atlas summary Western Exploration announced a positive Preliminary Economic Assessment \(PEA\) for its Doby George gold project in Nevada, outlining an after-tax NPV5 of US$70.7 million and an IRR of 25.4% at a US$2,150/oz gold price. The PEA is based on an updated NI 43-101 compliant Mineral Resource Estimate, which includes 13.66 Mt at 0.90 g/t Au \(394 koz\) Indicated and 3.27 Mt at 0.68 g/t Au \(71 koz\) Inferred. The study contemplates conventional open-pit mining and heap leach processing, with gold recoveries ranging from 40% to 71% across different ore types. Reasoning: The Preliminary Economic Assessment demonstrates robust economics for the Doby George gold project, indicating a potentially profitable development with a rapid payback, supported by an updated NI 43-101 compliant resource estimate and metallurgical testwork. However, the study is preliminary and includes a significant portion of inferred resources, and some metallurgical recoveries are low. - Positive factor: Positive after-tax NPV and IRR at base case gold price - Positive factor: Significant upside potential at higher gold prices - Positive factor: Low all-in sustaining costs - Positive factor: Rapid payback period - Positive factor: NI 43-101 compliant PEA and MRE - Positive factor: QP/CP signed off on the study - Positive factor: Indicated Mineral Resources provide a solid foundation - Negative factor: PEA is preliminary in nature and includes inferred mineral resources - Negative factor: No mineral reserves have been defined - Negative factor: Heap leach recoveries for 'Mixed' ore are low - Negative factor: No specific head grades or concentrate grades provided for metallurgical recoveries Low confidence — this extraction should be reviewed alongside the original source. Facts used in scoring: 6 ## Classification and evidence **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: The document is a Preliminary Economic Assessment \(PEA\) for the Doby George project. Evidence · text > Western Exploration Announces Positive Preliminary Economic Assessment for the Doby George Resource at the Aura Project **NI 43-101 Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with NI 43-101 \(Canada\) — high reporting standard. Why it applies: The PEA and the mineral resource estimate were prepared in accordance with National Instrument 43-101. Evidence · text > in accordance with National Instrument 43-101 - Standards of Disclosure for Mineral Projects \("NI 43-101"\). **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: The PEA was prepared by independent representatives of KCA and RESPEC, each of whom is a 'qualified person' and independent of Western Exploration. Evidence · text > The PEA has been prepared by independent representatives of KCA and RESPEC, each of whom is a "qualified person" \(within the meaning of NI 43-101\) \(each, a "qualified person"\) and independent of Western Exploration for purposes of Section 1.5 of NI 43-101. **Indicated Resource** Polarity: positive Definition: Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves. Why it applies: The Mineral Resource Estimate includes an Indicated category of 13,662,000 tonnes at 0.90 g/t Au. Evidence · table > Indicated Context: 13,662,000 **Inferred Resource** Polarity: negative Definition: Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone. Why it applies: The Mineral Resource Estimate includes an Inferred category of 3,270,000 tonnes at 0.68 g/t Au. Evidence · table > Inferred Context: 3,270,000 **Heap Leach Route** Polarity: neutral Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. Why it applies: The processing method described is conventional heap leaching. Evidence · text > crushed material will be processed by conventional heap leaching methods. **Low Recovery** Polarity: negative Definition: Recovery below the weak band for the commodity and processing route. Why it applies: The heap leach gold recovery for 'Mixed' ore is reported at 40%, which is below the weak band \(45%\) for heap leach gold. Evidence · table > 40% Context: Mixed **Multi-Domain Tested** Polarity: positive Definition: Variability across ore domains \(oxide, transition, fresh\) has been addressed. Why it applies: 4 distinct composites were tested ## Extracted facts Stored fact records: 6. Some facts used in scoring do not have a stored record. ## Resource Estimates (2) ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/western-exploration-announces-positive-preliminary-economic-assessment-for-the-d--e2c4c9ec-6d04-4195-87b0-8b57f6733183#fact-resource-facts-0) Doby George at Aura Project · gold #### Identity - Project: Doby George at Aura Project - Commodity: gold - Region: usa\_nv - Reported Region: Nevada - Ticker: WEX #### Resource scope - Estimate type: resource - Effective date: 2025-01-27T00:00:00.000Z - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Travis Manning, Michael S. Lindholm, Kyle Murphy - Resource group id: resource:17f2bf62c7e47c587149 - Deposit or zone: Doby George - Mining method: open\_pit - Ownership percent: 100 % #### Resource Data - Category: indicated - Tonnes: 13662000 - Grade: 0.9 - Grade Unit: g/t - Contained Metal: 394000 - Contained Unit: oz - Cutoff Grade: 0.17 - Cutoff Unit: g/t Au #### Prior Estimate - Resource Date: 2025-01-27 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-05-08T00:00:00.000Z Reasoning: The Indicated Mineral Resource provides a solid foundation for the PEA, demonstrating reasonable geological confidence and compliance with reporting standards. - Positive factor: Indicated resource category provides reasonable geological confidence - Positive factor: NI 43-101 compliant estimate - Positive factor: QP/CP signed off on the estimate Evidence · table > Indicated Context: 13,662,000 #### 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 **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 **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/western-exploration-announces-positive-preliminary-economic-assessment-for-the-d--e2c4c9ec-6d04-4195-87b0-8b57f6733183#fact-resource-facts-1) Doby George at Aura Project · gold #### Identity - Project: Doby George at Aura Project - Commodity: gold - Region: usa\_nv - Reported Region: Nevada - Ticker: WEX #### Resource scope - Estimate type: resource - Effective date: 2025-01-27T00:00:00.000Z - Reporting standards: ni\_43\_101 - QP Signed: Yes - Qualified person names: Travis Manning, Michael S. Lindholm, Kyle Murphy - Resource group id: resource:4a1682beeb23ccf08d15 - Deposit or zone: Doby George - Mining method: open\_pit - Ownership percent: 100 % #### Resource Data - Category: inferred - Tonnes: 3270000 - Grade: 0.68 - Grade Unit: g/t - Contained Metal: 71000 - Contained Unit: oz - Cutoff Grade: 0.17 - Cutoff Unit: g/t Au #### Prior Estimate - Resource Date: 2025-01-27 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-05-08T00:00:00.000Z Reasoning: The Inferred Mineral Resource adds to the overall potential but carries a lower level of confidence, being too speculative for definitive economic considerations in a PEA. - Positive factor: NI 43-101 compliant estimate - Positive factor: QP/CP signed off on the estimate - Negative factor: Inferred resource category is speculative and cannot support economic studies alone Evidence · table > Inferred Context: 3,270,000 #### 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 **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 **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: the release names the study this estimate supports ## Metallurgical Results (4) ### heap leach [Link to this fact](https://atlas-extractions.minestarters.com/news/western-exploration-announces-positive-preliminary-economic-assessment-for-the-d--e2c4c9ec-6d04-4195-87b0-8b57f6733183#fact-metallurgical-facts-2) Doby George at Aura Project · gold #### Identity - Project: Doby George at Aura Project - Commodity: gold - Region: usa\_nv - Reported Region: Nevada - Ticker: WEX #### Test Work - Program Status: detailed - Test Type: heap leach - Processing Route: conventional heap leaching methods - Sample: Westridge Oxide #### Recovery - Recovery: 67 % - Recovery Basis: actual\_test #### Lab - Laboratory: Kappes, Cassiday & Associates - Consultant: Kappes, Cassiday & Associates #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-05-08T00:00:00.000Z Reasoning: The 67% gold recovery for Westridge Oxide material is a moderate to strong result for a heap leach operation, contributing positively to the project's economics. - Positive factor: Recovery is within the moderate/strong band for heap leach gold \(65-75%\) - Positive factor: Part of a detailed PEA study - Negative factor: No head grade or concentrate grade provided for this recovery Evidence · table > 67% Context: Westridge Oxide #### Tags used in scoring **Heap Leach Route** Polarity: neutral Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. Why it applies: processing\_route matches the heap\_leach signal ### heap leach [Link to this fact](https://atlas-extractions.minestarters.com/news/western-exploration-announces-positive-preliminary-economic-assessment-for-the-d--e2c4c9ec-6d04-4195-87b0-8b57f6733183#fact-metallurgical-facts-3) Doby George at Aura Project · gold #### Identity - Project: Doby George at Aura Project - Commodity: gold - Region: usa\_nv - Reported Region: Nevada - Ticker: WEX #### Test Work - Program Status: detailed - Test Type: heap leach - Processing Route: conventional heap leaching methods - Sample: Day Light Oxide #### Recovery - Recovery: 71 % - Recovery Basis: actual\_test #### Lab - Laboratory: Kappes, Cassiday & Associates - Consultant: Kappes, Cassiday & Associates #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-05-08T00:00:00.000Z Reasoning: The 71% gold recovery for Day Light Oxide material is a strong result for a heap leach operation, positively impacting the project's economic viability. - Positive factor: Recovery is within the strong band for heap leach gold \(65-75%\) - Positive factor: Part of a detailed PEA study - Negative factor: No head grade or concentrate grade provided for this recovery Evidence · table > 71% Context: Day Light Oxide #### Tags used in scoring **Heap Leach Route** Polarity: neutral Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. Why it applies: processing\_route matches the heap\_leach signal ### heap leach [Link to this fact](https://atlas-extractions.minestarters.com/news/western-exploration-announces-positive-preliminary-economic-assessment-for-the-d--e2c4c9ec-6d04-4195-87b0-8b57f6733183#fact-metallurgical-facts-4) Doby George at Aura Project · gold #### Identity - Project: Doby George at Aura Project - Commodity: gold - Region: usa\_nv - Reported Region: Nevada - Ticker: WEX #### Test Work - Program Status: detailed - Test Type: heap leach - Processing Route: conventional heap leaching methods - Sample: Twilight Oxide #### Recovery - Recovery: 62 % - Recovery Basis: actual\_test #### Lab - Laboratory: Kappes, Cassiday & Associates - Consultant: Kappes, Cassiday & Associates #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-05-08T00:00:00.000Z Reasoning: The 62% gold recovery for Twilight Oxide material is a moderate result for a heap leach operation, contributing acceptably to the project's economics. - Positive factor: Recovery is within the moderate band for heap leach gold \(55-65%\) - Positive factor: Part of a detailed PEA study - Negative factor: No head grade or concentrate grade provided for this recovery Evidence · table > 62% Context: Twilight Oxide #### Tags used in scoring **Heap Leach Route** Polarity: neutral Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. Why it applies: processing\_route matches the heap\_leach signal ### heap leach [Link to this fact](https://atlas-extractions.minestarters.com/news/western-exploration-announces-positive-preliminary-economic-assessment-for-the-d--e2c4c9ec-6d04-4195-87b0-8b57f6733183#fact-metallurgical-facts-5) Doby George at Aura Project · gold #### Identity - Project: Doby George at Aura Project - Commodity: gold - Region: usa\_nv - Reported Region: Nevada - Ticker: WEX #### Test Work - Program Status: detailed - Test Type: heap leach - Processing Route: conventional heap leaching methods - Sample: Mixed #### Recovery - Recovery: 40 % - Recovery Basis: actual\_test #### Lab - Laboratory: Kappes, Cassiday & Associates - Consultant: Kappes, Cassiday & Associates #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-05-08T00:00:00.000Z Reasoning: The 40% gold recovery for Mixed material is a low result for a heap leach operation, indicating potential challenges for this ore type and negatively impacting overall project economics. - Positive factor: Part of a detailed PEA study - Negative factor: Recovery is below the weak band for heap leach gold \(45%\) - Negative factor: No head grade or concentrate grade provided for this recovery Evidence · table > 40% Context: Mixed #### Tags used in scoring **Heap Leach Route** Polarity: neutral Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. Why it applies: processing\_route matches the heap\_leach signal **Low Recovery** Polarity: negative Definition: Recovery below the weak band for the commodity and processing route. Why it applies: 40% is below the weak band \(45%\) ## 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.