Abasca Announces Positive Preliminary Economic Assessment for the Loki Flake Graphite Deposit: After-Tax NPV of US$130 Million and 16.7% IRR
Original announcement by tmx on
- Company
- Abasca Resources Inc.
- Ticker
- ABA
- Exchange
- TSX
- Region
- Saskatchewan
- Primary commodity
- Graphite
- Secondary commodities
- None reported
- Document categories
- Economic study, Resource update, Metallurgy
- Extracted
- 2026-09-19 06:19:08 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
Abasca Resources Inc. announced positive results from a Preliminary Economic Assessment (PEA) for its Loki Flake Graphite Deposit, projecting an after-tax NPV of US$130 million and an IRR of 16.7%. The study outlines a 19-year open-pit operation producing 66,500 tonnes of 95% Cg concentrate annually, based on an updated mineral resource estimate. The company plans to advance the project towards a Feasibility Study and secure necessary permits.
Reasoning: Abasca announced positive results from a Preliminary Economic Assessment (PEA) for its Loki Flake Graphite Deposit, showing an after-tax NPV of US$130 million and an IRR of 16.7%. The study projects a 19-year mine life with strong metallurgical recovery and is based on an updated mineral resource estimate. While the economics are positive, the PEA nature and reliance on a significant inferred resource component introduce inherent uncertainty. The company plans to advance towards a Feasibility Study.
Positive factors
- Positive after-tax NPV and IRR for the PEA, indicating economic viability.
- Long mine life of 19 years, providing exposure to multiple price cycles.
- High metallurgical recovery of 92.3% to concentrate, achieved with conventional flotation.
- Updated Mineral Resource Estimate forms the basis of the study, with a significant indicated component.
- Project benefits from existing infrastructure and proximity to power and road access.
Negative factors
- The study is a Preliminary Economic Assessment (PEA), which is conceptual in nature and includes inferred resources, carrying higher uncertainty.
- IRR of 16.7% is moderate, suggesting sensitivity to price fluctuations or cost increases.
- Payback period of 4.7 years is moderate, indicating a longer capital return time.
- The PEA is based on an updated MRE, but the MRE itself includes a substantial inferred component (15.83 Mt Inferred vs 6.99 Mt Indicated).
Low confidence — this extraction should be reviewed alongside the original source.
Facts used in scoring: 5
Classification and evidence
PEA Onlyneutral
Only Class 4 / Initial Assessment economics available. Not bankable.
Why it applies: The document explicitly states that the results are from a Preliminary Economic Assessment (PEA).
Evidence · text
“announces positive results from an independent Preliminary Economic Assessment (the "PEA")”
High IRRpositive
Post-tax real unlevered IRR in the strong tier or better.
Why it applies: The after-tax IRR of 16.7% falls within the moderate tier for economic studies.
Evidence · table
“16.7%”
Context: After-Tax Internal Rate of Return (IRR)
Fast Paybackpositive
Payback in the strong tier or better, on the required basis.
Why it applies: The after-tax simple payback period is 4.7 years, which is within the moderate tier.
Evidence · table
“4.7”
Context: After-Tax Simple Payback
Inferred Heavy Feednegative
Material Inferred share of LOM mill feed, or the share is undisclosed.
Why it applies: The PEA includes Inferred Mineral Resources that are considered too speculative geologically to have economic considerations applied to them, and the MRE has a significant inferred component (15.83 Mt Inferred vs 6.99 Mt Indicated).
Evidence · text
“It includes Inferred Mineral Resources that are considered too speculative geologically to have economic considerations applied to them that would enable them to be categorized as mineral reserves.”
NI 43-101 Compliantpositive
Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.
Why it applies: The PEA and MRE were prepared in accordance with National Instrument 43-101.
Evidence · text
“The PEA was prepared by Tetra Tech Canada Inc. ("Tetra Tech") in accordance with National Instrument 43-101”
QP/CP Signedpositive
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: Multiple Qualified Persons are named and responsible for the PEA and MRE.
Evidence · text
“The scientific and technical information contained in this news release has been reviewed and approved by Brian McEwan, P.Geo., who is a Qualified Person ("QP") as defined by National Instrument 43-101”
Resource Updateneutral
Revised estimate for an existing resource — compare to prior to assess progress.
Why it applies: The document announces an updated Mineral Resource Estimate for the Loki Flake Graphite Deposit.
Evidence · text
“On July 14, 2026, Abasca announced an updated Mineral Resource Estimate (the "MRE") for the Loki Flake Graphite Deposit.”
Maiden Resourceneutral
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 PEA is based on an updated MRE, but the company's 'About' section refers to the Loki Flake Graphite Deposit as 'hosting' resources, implying it's not a maiden resource for the project, but rather an update.
Evidence · text
“Abasca announced an updated Mineral Resource Estimate (the "MRE") for the Loki Flake Graphite Deposit.”
High Recoverypositive
Recovery at or above the exceptional band for the commodity and processing route.
Why it applies: Graphite recovery to concentrate is 92.3%, which is strong for flotation.
Evidence · table
“92.3”
Context: Graphite Recovery to Concentrate
Mill Routeneutral
Processing via mill or concentrator (CIL, CIP, tank leach, flotation).
Why it applies: The processing flowsheet uses conventional flotation with staged regrinding.
Evidence · text
“The flowsheet uses separate flotation with staged regrinding for coarse and fine fractions respectively.”
Pilot Scale Completepositive
Pilot or demonstration plant testing completed under continuous operation.
Why it applies: A preliminary test program was conducted by SGS Lakefield, including flotation testing, indicating bench-scale work.
Evidence · text
“A preliminary test program for recovering the graphite from the Abasca deposit was conducted by SGS Lakefield during 2025 and 2026.”
Cut-off Disclosedpositive
Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.
Why it applies: A current resource fact retains the disclosed cut-off grade
Single Domain Onlynegative
Testing limited to one composite or domain — representativeness not established.
Why it applies: only one composite was tested
Extracted facts
Stored fact records: 3. Some facts used in scoring do not have a stored record.
Resource Estimates (2)
indicatedLoki Flake Graphite Deposit · graphiteTonnes: 6990000Grade: 8.27Grade Unit: % CgContained Metal: 0.58Contained Unit: mtView all detailsHide details
Identity
- Project
- Loki Flake Graphite Deposit
- Commodity
- graphite
- Region
- canada_sk
- Reported Region
- Saskatchewan
- Ticker
- ABA
Resource scope
- Estimate type
- resource
- Effective date
- 2026-04-23T00:00:00.000Z
- Reporting standards
- ni_43_101
- QP Signed
- Yes
- Qualified person names
- Matt Batty
- Resource group id
- resource:1306d64140f21f45d4ab
- Deposit or zone
- Loki Flake Graphite Deposit
- Mining method
- open_pit
- Ownership percent
- 100 %
Resource Data
- Category
- indicated
- Tonnes
- 6990000
- Grade
- 8.27
- Grade Unit
- % Cg
- Contained Metal
- 0.58
- Contained Unit
- mt
- Cutoff Grade
- 2.3
- Cutoff Unit
- % Cg
Prior Estimate
- Resource Date
- 2026-04-23
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-08-19T00:00:00.000Z
Reasoning: The updated MRE includes 6.99 Mt of Indicated resources at 8.27% Cg, which is a positive for project de-risking and supports the economic assessment. The estimate is compliant with NI 43-101 standards.
Positive factors
- Significant indicated resource tonnage and grade, providing a solid base for economic studies.
- Resource estimate is NI 43-101 compliant and signed off by a Qualified Person.
- Updated MRE forms the basis of the PEA, indicating current geological understanding.
Evidence · table
“6.99”
Context: Indicated
Tags used in scoring
Indicated Resourcepositive
Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves.
Why it applies: category is "indicated"
Cut-off Disclosedpositive
Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.
Why it applies: cutoff_grade is stated
QP/CP Signedpositive
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 Compliantpositive
Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.
Why it applies: reporting_standards includes ni_43_101
Resource Updateneutral
Revised estimate for an existing resource — compare to prior to assess progress.
Why it applies: the release compares against a previous estimate
PEA-Supportingneutral
Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.
Why it applies: the release names the study this estimate supports
DFS-Supportingneutral
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
inferredLoki Flake Graphite Deposit · graphiteTonnes: 15830000Grade: 6.93Grade Unit: % CgContained Metal: 1.1Contained Unit: mtView all detailsHide details
Identity
- Project
- Loki Flake Graphite Deposit
- Commodity
- graphite
- Region
- canada_sk
- Reported Region
- Saskatchewan
- Ticker
- ABA
Resource scope
- Estimate type
- resource
- Effective date
- 2026-04-23T00:00:00.000Z
- Reporting standards
- ni_43_101
- QP Signed
- Yes
- Qualified person names
- Matt Batty
- Resource group id
- resource:b82c63ca1fa4335a298f
- Deposit or zone
- Loki Flake Graphite Deposit
- Mining method
- open_pit
- Ownership percent
- 100 %
Resource Data
- Category
- inferred
- Tonnes
- 15830000
- Grade
- 6.93
- Grade Unit
- % Cg
- Contained Metal
- 1.1
- Contained Unit
- mt
- Cutoff Grade
- 2.3
- Cutoff Unit
- % Cg
Prior Estimate
- Resource Date
- 2026-04-23
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-08-19T00:00:00.000Z
Reasoning: The updated MRE includes a large inferred resource of 15.83 Mt at 6.93% Cg, which offers future growth potential. However, its inferred nature means it carries higher geological and economic uncertainty, impacting the overall confidence of the PEA.
Positive factors
- Large inferred resource provides significant exploration upside and potential for future conversion to higher confidence categories.
- Resource estimate is NI 43-101 compliant and signed off by a Qualified Person.
Negative factors
- Inferred resources are considered too speculative for economic considerations and cannot be converted to reserves.
- The PEA's reliance on a substantial inferred component introduces higher risk and uncertainty.
Evidence · table
“15.83”
Context: Inferred
Tags used in scoring
Inferred Resourcenegative
Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone.
Why it applies: category is "inferred"
Cut-off Disclosedpositive
Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.
Why it applies: cutoff_grade is stated
QP/CP Signedpositive
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 Compliantpositive
Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.
Why it applies: reporting_standards includes ni_43_101
Resource Updateneutral
Revised estimate for an existing resource — compare to prior to assess progress.
Why it applies: the release compares against a previous estimate
PEA-Supportingneutral
Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.
Why it applies: the release names the study this estimate supports
DFS-Supportingneutral
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
Metallurgical Results (1)
flotationLoki Flake Graphite Deposit · graphiteRecovery: 92.3 %View all detailsHide details
Identity
- Project
- Loki Flake Graphite Deposit
- Commodity
- graphite
- Region
- canada_sk
- Reported Region
- Saskatchewan
- Ticker
- ABA
Test Work
- Program Status
- preliminary
- Test Type
- flotation
- Processing Route
- conventional flotation circuit with staged regrinding
- Sample
- samples from Abasca deposit
Recovery
- Recovery
- 92.3 %
- Recovery Basis
- to_concentrate
- Conc. Grade
- 95
- Conc. Grade Unit
- %
Lab
- Laboratory
- SGS Lakefield
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-08-19T00:00:00.000Z
Reasoning: Preliminary test work by SGS Lakefield demonstrated a strong graphite recovery of 92.3% to a 95% Cg concentrate using conventional flotation. This indicates favorable metallurgical characteristics for the Loki deposit, supporting the economic viability outlined in the PEA.
Positive factors
- High graphite recovery of 92.3% to concentrate, indicating efficient processing.
- Achieved with conventional flotation, suggesting a proven and scalable method.
- High concentrate grade of 95% Cg, suitable for market requirements.
- Test work conducted by a reputable laboratory (SGS Lakefield).
Negative factors
- The test program is described as 'preliminary', suggesting further optimization may be needed.
- Specific grind size and other process parameters are not detailed in the summary, limiting full assessment.
Evidence · table
“92.3”
Context: Graphite Recovery to Concentrate
Tags used in scoring
Mill Routeneutral
Processing via mill or concentrator (CIL, CIP, tank leach, flotation).
Why it applies: processing_route matches the flotation signal
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.