# Buffalo Potash Announces Preliminary Economic Assessment for Disley Project with After-Tax NPV of US$1.1B and IRR of 30%; Releases Results from Maiden 43-101 Mineral Resource Estimate Canonical Atlas analysis: https://atlas-extractions.minestarters.com/news/buffalo-potash-announces-preliminary-economic-assessment-for-disley-project-with--ed566f85-05fd-4c0d-ae7e-5c5ff5fefbbb Original source: https://money.tmx.com/en/quote/BUFF/news/8294358812410781/buffalo-potash-announces-preliminary-economic-assessment-for-disley-project-with Publisher: tmx Original announcement: 2026-04-27T11:30:00.000Z Analysis by Minestarters Atlas Atlas analysis published: Unknown date Atlas analysis updated: Unknown date - Company: Buffalo Potash Corporation - Ticker: BUFF - Exchange: TSX - Region: Saskatchewan, Canada - Primary commodity: Potash - Secondary commodities: None reported - Document categories: Resource update, Other - Extracted: 2026-09-15 14:55:59 UTC Narrative sentiment: 0.80 · Bullish ## Minestarters Atlas summary Buffalo Potash Corporation has announced the results of a maiden NI 43-101 Mineral Resource Estimate and a Preliminary Economic Assessment \(PEA\) for its 100%-owned Disley Potash Project in Saskatchewan, Canada. The PEA outlines strong economics with an after-tax NPV of US$1.1 billion and an IRR of 30%, based on an initial CAPEX of US$639 million and estimated OPEX of US$55/tonne MOP. The MRE confirms a substantial potash resource, including 1,671.5 million metric tonnes in the Measured and Indicated categories, supporting a mine life of over 50 years. Reasoning: The announcement presents a maiden NI 43-101 Mineral Resource Estimate and a Preliminary Economic Assessment for the Disley Potash Project, outlining robust economics with an after-tax NPV of US$1.1 billion and an IRR of 30%, supported by a substantial resource base and low operating costs, indicating significant project potential. - Positive factor: Strong economic metrics \(NPV, IRR\) - Positive factor: Low CAPEX and OPEX estimates - Positive factor: Large resource base supporting long mine life - Positive factor: Maiden NI 43-101 compliant Mineral Resource Estimate - Positive factor: QP/CP signed off on MRE and PEA - Positive factor: Strategic location adjacent to producing potash mines - Positive factor: Modular development approach with patent-pending technology - Negative factor: PEA is preliminary in nature and includes inferred mineral resources - Negative factor: No certainty that the PEA will be realized - Negative factor: Inferred resources are considered too speculative geologically Low confidence — this extraction should be reviewed alongside the original source. Facts used in scoring: 6 ## Classification and evidence **Maiden Resource** Polarity: neutral Definition: First formal MRE for the project — establishes baseline but typically exploration-stage with high Inferred component. No prior estimate exists, so every change band is not applicable. Why it applies: The document explicitly states 'Releases Results from Maiden 43-101 Mineral Resource Estimate'. Evidence · text > Releases Results from Maiden 43-101 Mineral Resource Estimate **NI 43-101 Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with NI 43-101 \(Canada\) — high reporting standard. Why it applies: The Mineral Resource Estimate and PEA were prepared in accordance with National Instrument 43-101 Standards of Disclosure for Mineral Projects. Evidence · text > in accordance with National Instrument 43-101 Standards of Disclosure for Mineral Projects **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. Ryan Langdon, Douglas F. Hambley, Jared Galenzoski, Jack Nagy, Christopher Jacobs, and Richard Thompson are all named as Qualified Persons responsible for the MRE and PEA. Evidence · text > Dr. Ryan Langdon, Ph.D, CGeol, of Micon is the QP responsible for this MRE. The scientific and technical information contained in this news release has been reviewed and approved by Douglas F. Hambley, PhD, PE, P.Eng., PG, an independent consultant of the Company and Qualified Person as defined under NI 43-101 Guidelines. All related and pertinent information has also been reviewed for this news release by Jared Galenzoski, P.Geo, FIMMM as an independent consultant and Qualified Person as defined under NI 43-101. Technical Report prepared by Ryan Langdon, PhD, P.Geol.; Jack Nagy, PEng; Christopher Jacobs, CEng., MIMMM; and Richard Thompson, CEng, MiChemE. Each of the aforementioned persons is considered a "Qualified Person" for the purposes of NI 43-101 and has reviewed and approved the scientific and technical disclosure contained in this news release. **Inferred Resource** Polarity: negative Definition: Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone. Why it applies: A significant portion of the resource is in the Inferred category, which is considered speculative for economic considerations. Evidence · text > The PEA is preliminary in nature and includes inferred mineral resources, which are considered too speculative geologically to have the economic considerations applied to them that would enable them to be categorized as mineral reserves. **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: The MRE notes mention 'The MRE used economic assumptions for HLD mining.' but a specific cut-off grade is not explicitly stated. Evidence · text > The MRE used economic assumptions for HLD mining. **Nearology Play** Polarity: neutral Story-specific tag Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: The project's value proposition is supported by its proximity to existing, successful potash mines. Evidence · text > The property is situated immediately adjacent to the east of the K+S Bethune potash solution mine and north of the Mosaic Belle Plaine potash solution mine — both of which are amongst the largest producing potash solution mines in the world. **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: The resource estimate was developed concurrently with a Preliminary Economic Assessment. Evidence · text > The PEA was prepared by Micon International Co Limited \(" Micon "\) in accordance with National Instrument 43-101 Standards of Disclosure for Mineral Projects and evaluates the development of the Disley Project ## Extracted facts Stored fact records: 6. Some facts used in scoring do not have a stored record. ## Resource Estimates (6) ### measured [Link to this fact](https://atlas-extractions.minestarters.com/news/buffalo-potash-announces-preliminary-economic-assessment-for-disley-project-with--ed566f85-05fd-4c0d-ae7e-5c5ff5fefbbb#fact-resource-facts-0) Disley Potash Project · potash #### Identity - Project: Disley Potash Project - Commodity: potash - Region: canada\_sk - Reported Region: Saskatchewan, Canada - Ticker: BUFF #### Resource scope - Estimate type: resource - Effective date: 2026-04-15T00:00:00.000Z - Reporting standards: ni\_43\_101, other - QP Signed: Yes - Qualified person names: Ryan Langdon, Douglas F. Hambley, Jared Galenzoski, Jack Nagy, Christopher Jacobs, Richard Thompson - Resource group id: resource:32f59a7010b70cd0c465 - Mining method: underground - Ownership percent: 100 % #### Resource Data - Category: measured - Tonnes: 399700000 - Grade: 34.82 - Grade Unit: % - Contained Metal: 139.2 - Contained Unit: mt #### Prior Estimate - Resource Date: 2026-04-15 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-04-27T00:00:00.000Z Reasoning: Measured resource provides high confidence for project development, with substantial contained potash. - Positive factor: High confidence category - Positive factor: Significant contained metal Evidence · table > 34.82% Context: 399.7 #### 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 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 **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/buffalo-potash-announces-preliminary-economic-assessment-for-disley-project-with--ed566f85-05fd-4c0d-ae7e-5c5ff5fefbbb#fact-resource-facts-1) Disley Potash Project · potash #### Identity - Project: Disley Potash Project - Commodity: potash - Region: canada\_sk - Reported Region: Saskatchewan, Canada - Ticker: BUFF #### Resource scope - Estimate type: resource - Effective date: 2026-04-15T00:00:00.000Z - Reporting standards: ni\_43\_101, other - QP Signed: Yes - Qualified person names: Ryan Langdon, Douglas F. Hambley, Jared Galenzoski, Jack Nagy, Christopher Jacobs, Richard Thompson - Resource group id: resource:32f59a7010b70cd0c465 - Mining method: underground - Ownership percent: 100 % #### Resource Data - Category: measured - Tonnes: 399700000 - Grade: 22 - Grade Unit: % - Contained Metal: 87.9 - Contained Unit: mt #### Prior Estimate - Resource Date: 2026-04-15 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-04-27T00:00:00.000Z Reasoning: Measured resource provides high confidence for project development, with substantial contained potash. - Positive factor: High confidence category - Positive factor: Significant contained metal Evidence · table > 22.00% Context: 399.7 #### 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 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 **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/buffalo-potash-announces-preliminary-economic-assessment-for-disley-project-with--ed566f85-05fd-4c0d-ae7e-5c5ff5fefbbb#fact-resource-facts-2) Disley Potash Project · potash #### Identity - Project: Disley Potash Project - Commodity: potash - Region: canada\_sk - Reported Region: Saskatchewan, Canada - Ticker: BUFF #### Resource scope - Estimate type: resource - Effective date: 2026-04-15T00:00:00.000Z - Reporting standards: ni\_43\_101, other - QP Signed: Yes - Qualified person names: Ryan Langdon, Douglas F. Hambley, Jared Galenzoski, Jack Nagy, Christopher Jacobs, Richard Thompson - Resource group id: resource:e4b8c00ed1dd27027cd0 - Mining method: underground - Ownership percent: 100 % #### Resource Data - Category: indicated - Tonnes: 1267400000 - Grade: 34.84 - Grade Unit: % - Contained Metal: 441.5 - Contained Unit: mt #### Prior Estimate - Resource Date: 2026-04-15 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-04-27T00:00:00.000Z Reasoning: Indicated resource adds substantial tonnage and contained metal, supporting project scale. - Positive factor: Good confidence category - Positive factor: Significant contained metal Evidence · table > 34.84% Context: 1,267.4 #### 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 **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/buffalo-potash-announces-preliminary-economic-assessment-for-disley-project-with--ed566f85-05fd-4c0d-ae7e-5c5ff5fefbbb#fact-resource-facts-3) Disley Potash Project · potash #### Identity - Project: Disley Potash Project - Commodity: potash - Region: canada\_sk - Reported Region: Saskatchewan, Canada - Ticker: BUFF #### Resource scope - Estimate type: resource - Effective date: 2026-04-15T00:00:00.000Z - Reporting standards: ni\_43\_101, other - QP Signed: Yes - Qualified person names: Ryan Langdon, Douglas F. Hambley, Jared Galenzoski, Jack Nagy, Christopher Jacobs, Richard Thompson - Resource group id: resource:e4b8c00ed1dd27027cd0 - Mining method: underground - Ownership percent: 100 % #### Resource Data - Category: indicated - Tonnes: 1267400000 - Grade: 22.01 - Grade Unit: % - Contained Metal: 278.9 - Contained Unit: mt #### Prior Estimate - Resource Date: 2026-04-15 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-04-27T00:00:00.000Z Reasoning: Indicated resource adds substantial tonnage and contained metal, supporting project scale. - Positive factor: Good confidence category - Positive factor: Significant contained metal Evidence · table > 22.01% Context: 1,267.4 #### 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 **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/buffalo-potash-announces-preliminary-economic-assessment-for-disley-project-with--ed566f85-05fd-4c0d-ae7e-5c5ff5fefbbb#fact-resource-facts-4) Disley Potash Project · potash #### Identity - Project: Disley Potash Project - Commodity: potash - Region: canada\_sk - Reported Region: Saskatchewan, Canada - Ticker: BUFF #### Resource scope - Estimate type: resource - Effective date: 2026-04-15T00:00:00.000Z - Reporting standards: ni\_43\_101, other - QP Signed: Yes - Qualified person names: Ryan Langdon, Douglas F. Hambley, Jared Galenzoski, Jack Nagy, Christopher Jacobs, Richard Thompson - Resource group id: resource:cc40a95723c0e94f5b4f - Mining method: underground - Ownership percent: 100 % #### Resource Data - Category: inferred - Tonnes: 2663200000 - Grade: 34.96 - Grade Unit: % - Contained Metal: 930.9 - Contained Unit: mt #### Prior Estimate - Resource Date: 2026-04-15 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-04-27T00:00:00.000Z Reasoning: Inferred resource significantly expands the total resource base, indicating substantial future potential, though with lower geological confidence. - Positive factor: Adds significant potential tonnage - Negative factor: Lower confidence category - Negative factor: Speculative nature Evidence · table > 34.96% Context: 2,663.2 #### 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 **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/buffalo-potash-announces-preliminary-economic-assessment-for-disley-project-with--ed566f85-05fd-4c0d-ae7e-5c5ff5fefbbb#fact-resource-facts-5) Disley Potash Project · potash #### Identity - Project: Disley Potash Project - Commodity: potash - Region: canada\_sk - Reported Region: Saskatchewan, Canada - Ticker: BUFF #### Resource scope - Estimate type: resource - Effective date: 2026-04-15T00:00:00.000Z - Reporting standards: ni\_43\_101, other - QP Signed: Yes - Qualified person names: Ryan Langdon, Douglas F. Hambley, Jared Galenzoski, Jack Nagy, Christopher Jacobs, Richard Thompson - Resource group id: resource:cc40a95723c0e94f5b4f - Mining method: underground - Ownership percent: 100 % #### Resource Data - Category: inferred - Tonnes: 2663200000 - Grade: 22.08 - Grade Unit: % - Contained Metal: 588.1 - Contained Unit: mt #### Prior Estimate - Resource Date: 2026-04-15 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-04-27T00:00:00.000Z Reasoning: Inferred resource significantly expands the total resource base, indicating substantial future potential, though with lower geological confidence. - Positive factor: Adds significant potential tonnage - Negative factor: Lower confidence category - Negative factor: Speculative nature Evidence · table > 22.08% Context: 2,663.2 #### 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 **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.