LTR: Kathleen Valley Expansion Final Investment Decision
Original announcement by asx on
- Company
- Liontown
- Ticker
- LTR
- Exchange
- ASX
- Region
- Western Australia
- Primary commodity
- Lithium
- Secondary commodities
- Tantalum
- Document categories
- Production, Capital raise, Resource update, Metallurgy
- Extracted
- 2026-09-29 23:34:55 UTC
Analysis by Minestarters Atlas
Atlas analysis published:
Minestarters Atlas analysis
Summary
Liontown has approved the Final Investment Decision for the Kathleen Valley Expansion, targeting a five-year average spodumene concentrate production of 780,000 dmt per year from FY30, peaking at over 800,000 dmt in FY34. The expansion, with an approved capital of $389 million, will increase ore processing capacity to 4.2 Mtpa and is expected to be funded through existing cash and operating cash flow, with a forecast payback of approximately 2.5 years. The company also updated its FY27 capital expenditure guidance to $435-495 million to include the expansion capital.
Reasoning: Liontown's Final Investment Decision to expand the Kathleen Valley project is a highly positive and material development, significantly increasing future spodumene concentrate production and processing capacity. The expansion is well-funded internally with a rapid payback, leveraging existing infrastructure for capital efficiency. While a portion of the production inventory includes Inferred resources, the company has mitigated this risk by scheduling minimal Inferred material in the early mine plan.
Positive factors
- Significant increase in production targets for spodumene concentrate, positioning Kathleen Valley as a major global hard-rock operation.
- Expansion is fully funded through existing cash and operating cash flow, indicating strong financial health and minimal dilution risk.
- Relatively quick payback period of 2.5 years from incremental cashflows, suggesting a high return on investment.
- The expansion leverages existing infrastructure and design, leading to efficient capital expenditure and faster time to market.
- Low percentage of Inferred material (less than 9%) scheduled for mining in the early years, de-risking the production profile.
Negative factors
- A portion of the production inventory (21.5%) is based on Inferred Mineral Resources, which carry a lower level of geological confidence.
Facts used in scoring: 38
Classification and evidence
Tonnage Growthpositive
Significant tonnage increase (≥15%) vs prior estimate with grade maintained or improved.
Why it applies: The expansion is lifting the five-year steady-state average concentrate production to ~780,000 dmt a year, representing a significant increase in output.
Evidence · text
“lifting five-year steady-state average concentrate production to ~780,000 dmt a year”
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: The Mineral Resources and Ore Reserves underpinning the production targets have been prepared by a Competent Person in accordance with the JORC Code (2012 Edition).
Evidence · text
“prepared by a Competent Person in accordance with the JORC Code (2012 Edition)”
JORC Compliantpositive
Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.
Why it applies: The Mineral Resources and Ore Reserves are stated to be in accordance with the JORC Code (2012 Edition).
Evidence · text
“JORC Code (2012 Edition)”
Resource Updateneutral
Revised estimate for an existing resource — compare to prior to assess progress.
Why it applies: The document includes updated Mineral Resource and Ore Reserve tables effective 30 June 2026.
Evidence · text
“Kathleen Valley Mineral Resource at 30 June 2026”
DFS-Supportingneutral
Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.
Why it applies: The Final Investment Decision (FID) implies that the resource estimate and associated studies are at a Definitive Feasibility Study level to support such a significant capital commitment.
Evidence · text
“Board approves Kathleen Valley Expansion, lifting five-year steady-state average concentrate production”
Inferred Resourcenegative
Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone.
Why it applies: The production inventory includes 21.5% Inferred Mineral Resources.
Evidence · text
“comprise Proved Ore Reserves (6%), Probable Ore Reserves (72.5%) and Inferred Mineral Resources (21.5%)”
Low Inferred in Early Mine Planpositive · Story-specific tag
No canonical definition is currently available.
Why it applies: Less than 9% of the Inferred material is scheduled to be mined in the first five years, mitigating the risk associated with lower confidence resources.
Evidence · text
“less than 9% of the Inferred material is mined in the first five years”
Capital Raiseneutral · Story-specific tag
No canonical definition is currently available.
Why it applies: The document announces a Final Investment Decision for an expansion with approved capital expenditure of $389 million.
Evidence · text
“Approved expansion capital of $389 million”
Production Guidanceneutral · Story-specific tag
No canonical definition is currently available.
Why it applies: The document provides updated FY27 guidance for total capital expenditure and reiterates unchanged production and operating cost guidance.
Evidence · text
“FY27 guidance for concentrate production (390,000–440,000 dmt) and unit operating costs ($1,050–1,250/dmt sold FOB) is unchanged. FY27 total capital expenditure guidance is updated to $435–495 million”
Funding Securedpositive · Story-specific tag
No canonical definition is currently available.
Why it applies: The expansion is intended to be funded through existing cash and operating cash flow, indicating secure financing.
Evidence · text
“Expansion intended to be funded through existing cash and operating cash flow”
Quick Paybackpositive · Story-specific tag
No canonical definition is currently available.
Why it applies: The expansion has a forecast payback period of approximately 2.5 years from incremental cashflows.
Evidence · text
“forecast payback from incremental cashflows of approximately 2.5 years from the end of construction”
Mill Routeneutral
Processing via mill or concentrator (CIL, CIP, tank leach, flotation).
Why it applies: the document describes a flotation route ("flotation")
Extracted facts
Stored fact records: 15. Some facts used in scoring do not have a stored record.
Resource Estimates (14)
measuredKathleen Valley · lithiumTonnes: 14000000Grade: 1.32Grade Unit: % Li2OView all detailsHide details
Identity
- Project
- Kathleen Valley
- Commodity
- lithium
- Region
- australia_wa
- Reported Region
- Western Australia
- Ticker
- LTR
Resource scope
- Estimate type
- resource
- Reporting standards
- jorc
- QP Signed
- Yes
- Resource group id
- resource:adc8f4d599d95e77a022
- Deposit or zone
- Underground
- Mining method
- combined
- Resource basis
- gross
Resource Data
- Category
- measured
- Tonnes
- 14000000
- Grade
- 1.32
- Grade Unit
- % Li2O
- Cutoff Grade
- 0.6
- Cutoff Unit
- % Li2O
Prior Estimate
- Resource Date
- 2026-06-30
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-09-29T00:00:00.000Z
Reasoning: The Measured Mineral Resource for underground material at Kathleen Valley provides a high-confidence estimate for a portion of the project's resource base.
Positive factors
- Measured resources represent the highest level of geological confidence, supporting robust mine planning.
- Resource is JORC compliant and signed off by a Competent Person.
Evidence · table
“1.32”
Context: 14
Tags used in scoring
Measured Resourcepositive
Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves.
Why it applies: category is "measured"
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
JORC Compliantpositive
Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.
Why it applies: reporting_standards includes jorc
No Contained Metalnegative
Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.
Why it applies: contained_metal was not reported
Resource Updateneutral
Revised estimate for an existing resource — compare to prior to assess progress.
Why it applies: the release compares against a previous estimate
measuredKathleen Valley · tantalumTonnes: 14000000Grade: 140Grade Unit: ppmView all detailsHide details
Identity
- Project
- Kathleen Valley
- Commodity
- tantalum
- Region
- australia_wa
- Reported Region
- Western Australia
- Ticker
- LTR
Resource scope
- Estimate type
- resource
- Reporting standards
- jorc
- QP Signed
- Yes
- Resource group id
- resource:adc8f4d599d95e77a022
- Deposit or zone
- Underground
- Mining method
- combined
- Resource basis
- gross
Resource Data
- Category
- measured
- Tonnes
- 14000000
- Grade
- 140
- Grade Unit
- ppm
- Cutoff Grade
- 0.6
- Cutoff Unit
- % Li2O
Prior Estimate
- Resource Date
- 2026-06-30
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-09-29T00:00:00.000Z
Reasoning: The Measured Mineral Resource for tantalum in the underground material indicates potential byproduct value, contributing to the overall project economics.
Positive factors
- Measured resources for tantalum provide additional value potential from the deposit.
- Resource is JORC compliant and signed off by a Competent Person.
Evidence · table
“140”
Context: 14
Tags used in scoring
Measured Resourcepositive
Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves.
Why it applies: category is "measured"
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
JORC Compliantpositive
Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.
Why it applies: reporting_standards includes jorc
No Contained Metalnegative
Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.
Why it applies: contained_metal was not reported
Resource Updateneutral
Revised estimate for an existing resource — compare to prior to assess progress.
Why it applies: the release compares against a previous estimate
indicatedKathleen Valley · lithiumTonnes: 106000000Grade: 1.36Grade Unit: % Li2OView all detailsHide details
Identity
- Project
- Kathleen Valley
- Commodity
- lithium
- Region
- australia_wa
- Reported Region
- Western Australia
- Ticker
- LTR
Resource scope
- Estimate type
- resource
- Reporting standards
- jorc
- QP Signed
- Yes
- Resource group id
- resource:1f99400f7971411dfa52
- Deposit or zone
- Underground
- Mining method
- combined
- Resource basis
- gross
Resource Data
- Category
- indicated
- Tonnes
- 106000000
- Grade
- 1.36
- Grade Unit
- % Li2O
- Cutoff Grade
- 0.6
- Cutoff Unit
- % Li2O
Prior Estimate
- Resource Date
- 2026-06-30
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-09-29T00:00:00.000Z
Reasoning: The Indicated Mineral Resource for underground material at Kathleen Valley represents a significant portion of the resource with good geological confidence.
Positive factors
- Indicated resources provide a good level of geological confidence for mine planning and economic studies.
- Resource is JORC compliant and signed off by a Competent Person.
Evidence · table
“1.36”
Context: 106
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
JORC Compliantpositive
Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.
Why it applies: reporting_standards includes jorc
No Contained Metalnegative
Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.
Why it applies: contained_metal was not reported
Resource Updateneutral
Revised estimate for an existing resource — compare to prior to assess progress.
Why it applies: the release compares against a previous estimate
indicatedKathleen Valley · tantalumTonnes: 106000000Grade: 130Grade Unit: ppmView all detailsHide details
Identity
- Project
- Kathleen Valley
- Commodity
- tantalum
- Region
- australia_wa
- Reported Region
- Western Australia
- Ticker
- LTR
Resource scope
- Estimate type
- resource
- Reporting standards
- jorc
- QP Signed
- Yes
- Resource group id
- resource:1f99400f7971411dfa52
- Deposit or zone
- Underground
- Mining method
- combined
- Resource basis
- gross
Resource Data
- Category
- indicated
- Tonnes
- 106000000
- Grade
- 130
- Grade Unit
- ppm
- Cutoff Grade
- 0.6
- Cutoff Unit
- % Li2O
Prior Estimate
- Resource Date
- 2026-06-30
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-09-29T00:00:00.000Z
Reasoning: The Indicated Mineral Resource for tantalum in the underground material further highlights the polymetallic nature and potential byproduct value of the deposit.
Positive factors
- Indicated resources for tantalum provide additional value potential from the deposit.
- Resource is JORC compliant and signed off by a Competent Person.
Evidence · table
“130”
Context: 106
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
JORC Compliantpositive
Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.
Why it applies: reporting_standards includes jorc
No Contained Metalnegative
Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.
Why it applies: contained_metal was not reported
Resource Updateneutral
Revised estimate for an existing resource — compare to prior to assess progress.
Why it applies: the release compares against a previous estimate
inferredKathleen Valley · lithiumTonnes: 26000000Grade: 1.24Grade Unit: % Li2OView all detailsHide details
Identity
- Project
- Kathleen Valley
- Commodity
- lithium
- Region
- australia_wa
- Reported Region
- Western Australia
- Ticker
- LTR
Resource scope
- Estimate type
- resource
- Reporting standards
- jorc
- QP Signed
- Yes
- Resource group id
- resource:88c5eaea9c1f2aa52844
- Deposit or zone
- Underground
- Mining method
- combined
- Resource basis
- gross
Resource Data
- Category
- inferred
- Tonnes
- 26000000
- Grade
- 1.24
- Grade Unit
- % Li2O
- Cutoff Grade
- 0.6
- Cutoff Unit
- % Li2O
Prior Estimate
- Resource Date
- 2026-06-30
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-09-29T00:00:00.000Z
Reasoning: The Inferred Mineral Resource for underground material contributes to the overall resource base but requires further work to upgrade confidence for detailed mine planning.
Positive factors
- Inferred resources add to the overall resource base, indicating future potential for conversion to higher confidence categories.
- Resource is JORC compliant and signed off by a Competent Person.
Negative factors
- Inferred resources have a lower level of geological confidence and cannot be used for economic studies without further drilling.
Evidence · table
“1.24”
Context: 26
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
JORC Compliantpositive
Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.
Why it applies: reporting_standards includes jorc
No Contained Metalnegative
Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.
Why it applies: contained_metal was not reported
Resource Updateneutral
Revised estimate for an existing resource — compare to prior to assess progress.
Why it applies: the release compares against a previous estimate
inferredKathleen Valley · tantalumTonnes: 26000000Grade: 120Grade Unit: ppmView all detailsHide details
Identity
- Project
- Kathleen Valley
- Commodity
- tantalum
- Region
- australia_wa
- Reported Region
- Western Australia
- Ticker
- LTR
Resource scope
- Estimate type
- resource
- Reporting standards
- jorc
- QP Signed
- Yes
- Resource group id
- resource:88c5eaea9c1f2aa52844
- Deposit or zone
- Underground
- Mining method
- combined
- Resource basis
- gross
Resource Data
- Category
- inferred
- Tonnes
- 26000000
- Grade
- 120
- Grade Unit
- ppm
- Cutoff Grade
- 0.6
- Cutoff Unit
- % Li2O
Prior Estimate
- Resource Date
- 2026-06-30
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-09-29T00:00:00.000Z
Reasoning: The Inferred Mineral Resource for tantalum in the underground material adds to the overall resource potential but requires further work to confirm its economic viability.
Positive factors
- Inferred resources for tantalum add to the overall resource base, indicating future potential byproduct value.
- Resource is JORC compliant and signed off by a Competent Person.
Negative factors
- Inferred resources have a lower level of geological confidence and cannot be used for economic studies without further drilling.
Evidence · table
“120”
Context: 26
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
JORC Compliantpositive
Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.
Why it applies: reporting_standards includes jorc
No Contained Metalnegative
Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.
Why it applies: contained_metal was not reported
Resource Updateneutral
Revised estimate for an existing resource — compare to prior to assess progress.
Why it applies: the release compares against a previous estimate
provenKathleen Valley · lithiumTonnes: 300000Grade: 1.02Grade Unit: % Li2OView all detailsHide details
Identity
- Project
- Kathleen Valley
- Commodity
- lithium
- Region
- australia_wa
- Reported Region
- Western Australia
- Ticker
- LTR
Resource scope
- Estimate type
- reserve
- Reporting standards
- jorc
- QP Signed
- Yes
- Resource group id
- resource:8c38819c3611fe6fb2b3
- Deposit or zone
- Stockpiles
- Mining method
- combined
- Resource basis
- gross
Resource Data
- Category
- proven
- Tonnes
- 300000
- Grade
- 1.02
- Grade Unit
- % Li2O
- Cutoff Grade
- 0.6
- Cutoff Unit
- % Li2O
Prior Estimate
- Resource Date
- 2026-06-30
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-09-29T00:00:00.000Z
Reasoning: The Proved Mineral Resource in stockpiles provides a high-confidence, readily accessible source of lithium for the operation.
Positive factors
- Proved resources in stockpiles represent readily available and high-confidence material.
- Resource is JORC compliant and signed off by a Competent Person.
Evidence · table
“1.02”
Context: 0.3
Tags used in scoring
Proven Reservepositive
Measured Resource with demonstrated economic viability after applying modifying factors.
Why it applies: category is "proven"
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
JORC Compliantpositive
Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.
Why it applies: reporting_standards includes jorc
No Contained Metalnegative
Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.
Why it applies: contained_metal was not reported
Resource Updateneutral
Revised estimate for an existing resource — compare to prior to assess progress.
Why it applies: the release compares against a previous estimate
provenKathleen Valley · tantalumTonnes: 300000Grade: 140Grade Unit: ppmView all detailsHide details
Identity
- Project
- Kathleen Valley
- Commodity
- tantalum
- Region
- australia_wa
- Reported Region
- Western Australia
- Ticker
- LTR
Resource scope
- Estimate type
- reserve
- Reporting standards
- jorc
- QP Signed
- Yes
- Resource group id
- resource:8c38819c3611fe6fb2b3
- Deposit or zone
- Stockpiles
- Mining method
- combined
- Resource basis
- gross
Resource Data
- Category
- proven
- Tonnes
- 300000
- Grade
- 140
- Grade Unit
- ppm
- Cutoff Grade
- 0.6
- Cutoff Unit
- % Li2O
Prior Estimate
- Resource Date
- 2026-06-30
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-09-29T00:00:00.000Z
Reasoning: The Proved Mineral Resource for tantalum in stockpiles adds to the immediate byproduct potential of the operation.
Positive factors
- Proved resources for tantalum in stockpiles represent readily available byproduct material.
- Resource is JORC compliant and signed off by a Competent Person.
Evidence · table
“140”
Context: 0.3
Tags used in scoring
Proven Reservepositive
Measured Resource with demonstrated economic viability after applying modifying factors.
Why it applies: category is "proven"
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
JORC Compliantpositive
Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.
Why it applies: reporting_standards includes jorc
No Contained Metalnegative
Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.
Why it applies: contained_metal was not reported
Resource Updateneutral
Revised estimate for an existing resource — compare to prior to assess progress.
Why it applies: the release compares against a previous estimate
provenKathleen Valley · lithiumTonnes: 300000Grade: 1.02Grade Unit: % Li2OView all detailsHide details
Identity
- Project
- Kathleen Valley
- Commodity
- lithium
- Region
- australia_wa
- Reported Region
- Western Australia
- Ticker
- LTR
Resource scope
- Estimate type
- reserve
- Reporting standards
- jorc
- QP Signed
- Yes
- Resource group id
- resource:8c38819c3611fe6fb2b3
- Deposit or zone
- Stockpiles
- Mining method
- combined
- Resource basis
- gross
Resource Data
- Category
- proven
- Tonnes
- 300000
- Grade
- 1.02
- Grade Unit
- % Li2O
- Cutoff Grade
- 0.8
- Cutoff Unit
- % Li2O
Prior Estimate
- Resource Date
- 2026-06-30
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-09-29T00:00:00.000Z
Reasoning: The Proved Ore Reserve in stockpiles provides a high-confidence, economically extractable source of lithium.
Positive factors
- Proved reserves in stockpiles represent economically viable and readily available material.
- Reserve is JORC compliant and signed off by a Competent Person.
Evidence · table
“1.02”
Context: 0.3
Tags used in scoring
Proven Reservepositive
Measured Resource with demonstrated economic viability after applying modifying factors.
Why it applies: category is "proven"
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
JORC Compliantpositive
Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.
Why it applies: reporting_standards includes jorc
No Contained Metalnegative
Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.
Why it applies: contained_metal was not reported
Resource Updateneutral
Revised estimate for an existing resource — compare to prior to assess progress.
Why it applies: the release compares against a previous estimate
provenKathleen Valley · tantalumTonnes: 300000Grade: 139Grade Unit: ppmView all detailsHide details
Identity
- Project
- Kathleen Valley
- Commodity
- tantalum
- Region
- australia_wa
- Reported Region
- Western Australia
- Ticker
- LTR
Resource scope
- Estimate type
- reserve
- Reporting standards
- jorc
- QP Signed
- Yes
- Resource group id
- resource:8c38819c3611fe6fb2b3
- Deposit or zone
- Stockpiles
- Mining method
- combined
- Resource basis
- gross
Resource Data
- Category
- proven
- Tonnes
- 300000
- Grade
- 139
- Grade Unit
- ppm
- Cutoff Grade
- 0.8
- Cutoff Unit
- % Li2O
Prior Estimate
- Resource Date
- 2026-06-30
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-09-29T00:00:00.000Z
Reasoning: The Proved Ore Reserve for tantalum in stockpiles adds to the immediate economically extractable byproduct potential.
Positive factors
- Proved reserves for tantalum in stockpiles represent economically viable byproduct material.
- Reserve is JORC compliant and signed off by a Competent Person.
Evidence · table
“139”
Context: 0.3
Tags used in scoring
Proven Reservepositive
Measured Resource with demonstrated economic viability after applying modifying factors.
Why it applies: category is "proven"
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
JORC Compliantpositive
Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.
Why it applies: reporting_standards includes jorc
No Contained Metalnegative
Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.
Why it applies: contained_metal was not reported
Resource Updateneutral
Revised estimate for an existing resource — compare to prior to assess progress.
Why it applies: the release compares against a previous estimate
provenKathleen Valley · lithiumTonnes: 5400000Grade: 1.3Grade Unit: % Li2OView all detailsHide details
Identity
- Project
- Kathleen Valley
- Commodity
- lithium
- Region
- australia_wa
- Reported Region
- Western Australia
- Ticker
- LTR
Resource scope
- Estimate type
- reserve
- Reporting standards
- jorc
- QP Signed
- Yes
- Resource group id
- resource:51620475dc1ff26d7e16
- Deposit or zone
- Underground
- Mining method
- combined
- Resource basis
- gross
Resource Data
- Category
- proven
- Tonnes
- 5400000
- Grade
- 1.3
- Grade Unit
- % Li2O
- Cutoff Grade
- 0.8
- Cutoff Unit
- % Li2O
Prior Estimate
- Resource Date
- 2026-06-30
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-09-29T00:00:00.000Z
Reasoning: The Proved Ore Reserve for underground lithium provides a high-confidence, economically extractable portion of the resource.
Positive factors
- Proved underground reserves represent high-confidence, economically viable material for the primary mining method.
- Reserve is JORC compliant and signed off by a Competent Person.
Evidence · table
“1.30”
Context: 5.4
Tags used in scoring
Proven Reservepositive
Measured Resource with demonstrated economic viability after applying modifying factors.
Why it applies: category is "proven"
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
JORC Compliantpositive
Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.
Why it applies: reporting_standards includes jorc
No Contained Metalnegative
Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.
Why it applies: contained_metal was not reported
Resource Updateneutral
Revised estimate for an existing resource — compare to prior to assess progress.
Why it applies: the release compares against a previous estimate
provenKathleen Valley · tantalumTonnes: 5400000Grade: 110Grade Unit: ppmView all detailsHide details
Identity
- Project
- Kathleen Valley
- Commodity
- tantalum
- Region
- australia_wa
- Reported Region
- Western Australia
- Ticker
- LTR
Resource scope
- Estimate type
- reserve
- Reporting standards
- jorc
- QP Signed
- Yes
- Resource group id
- resource:51620475dc1ff26d7e16
- Deposit or zone
- Underground
- Mining method
- combined
- Resource basis
- gross
Resource Data
- Category
- proven
- Tonnes
- 5400000
- Grade
- 110
- Grade Unit
- ppm
- Cutoff Grade
- 0.8
- Cutoff Unit
- % Li2O
Prior Estimate
- Resource Date
- 2026-06-30
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-09-29T00:00:00.000Z
Reasoning: The Proved Ore Reserve for underground tantalum adds to the high-confidence, economically extractable byproduct potential.
Positive factors
- Proved underground reserves for tantalum provide high-confidence byproduct potential.
- Reserve is JORC compliant and signed off by a Competent Person.
Evidence · table
“110”
Context: 5.4
Tags used in scoring
Proven Reservepositive
Measured Resource with demonstrated economic viability after applying modifying factors.
Why it applies: category is "proven"
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
JORC Compliantpositive
Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.
Why it applies: reporting_standards includes jorc
No Contained Metalnegative
Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.
Why it applies: contained_metal was not reported
Resource Updateneutral
Revised estimate for an existing resource — compare to prior to assess progress.
Why it applies: the release compares against a previous estimate
probableKathleen Valley · lithiumTonnes: 63100000Grade: 1.32Grade Unit: % Li2OView all detailsHide details
Identity
- Project
- Kathleen Valley
- Commodity
- lithium
- Region
- australia_wa
- Reported Region
- Western Australia
- Ticker
- LTR
Resource scope
- Estimate type
- reserve
- Reporting standards
- jorc
- QP Signed
- Yes
- Resource group id
- resource:89e8a4cf051f3edf6a46
- Deposit or zone
- Underground
- Mining method
- combined
- Resource basis
- gross
Resource Data
- Category
- probable
- Tonnes
- 63100000
- Grade
- 1.32
- Grade Unit
- % Li2O
- Cutoff Grade
- 0.8
- Cutoff Unit
- % Li2O
Prior Estimate
- Resource Date
- 2026-06-30
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-09-29T00:00:00.000Z
Reasoning: The Probable Ore Reserve for underground lithium represents a substantial portion of the economically extractable material, providing confidence for long-term operations.
Positive factors
- Probable underground reserves represent a significant portion of economically viable material, supporting long-term mine plans.
- Reserve is JORC compliant and signed off by a Competent Person.
Evidence · table
“1.32”
Context: 63.1
Tags used in scoring
Probable Reservepositive
Indicated Resource with demonstrated economic viability after applying modifying factors.
Why it applies: category is "probable"
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
JORC Compliantpositive
Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.
Why it applies: reporting_standards includes jorc
No Contained Metalnegative
Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.
Why it applies: contained_metal was not reported
Resource Updateneutral
Revised estimate for an existing resource — compare to prior to assess progress.
Why it applies: the release compares against a previous estimate
probableKathleen Valley · tantalumTonnes: 63100000Grade: 119Grade Unit: ppmView all detailsHide details
Identity
- Project
- Kathleen Valley
- Commodity
- tantalum
- Region
- australia_wa
- Reported Region
- Western Australia
- Ticker
- LTR
Resource scope
- Estimate type
- reserve
- Reporting standards
- jorc
- QP Signed
- Yes
- Resource group id
- resource:89e8a4cf051f3edf6a46
- Deposit or zone
- Underground
- Mining method
- combined
- Resource basis
- gross
Resource Data
- Category
- probable
- Tonnes
- 63100000
- Grade
- 119
- Grade Unit
- ppm
- Cutoff Grade
- 0.8
- Cutoff Unit
- % Li2O
Prior Estimate
- Resource Date
- 2026-06-30
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-09-29T00:00:00.000Z
Reasoning: The Probable Ore Reserve for underground tantalum adds significant byproduct potential to the economically extractable material.
Positive factors
- Probable underground reserves for tantalum provide significant byproduct potential.
- Reserve is JORC compliant and signed off by a Competent Person.
Evidence · table
“119”
Context: 63.1
Tags used in scoring
Probable Reservepositive
Indicated Resource with demonstrated economic viability after applying modifying factors.
Why it applies: category is "probable"
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
JORC Compliantpositive
Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.
Why it applies: reporting_standards includes jorc
No Contained Metalnegative
Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.
Why it applies: contained_metal was not reported
Resource Updateneutral
Revised estimate for an existing resource — compare to prior to assess progress.
Why it applies: the release compares against a previous estimate
Metallurgical Results (1)
Fact 1Kathleen Valley · lithiumRecovery: 78 %View all detailsHide details
Identity
- Project
- Kathleen Valley
- Commodity
- lithium
- Region
- australia_wa
- Reported Region
- Western Australia
- Ticker
- LTR
Recovery
- Recovery
- 78 %
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-09-29T00:00:00.000Z
Reasoning: The target average plant recovery of 78% from FY30 is a crucial operational parameter for the expanded production.
Positive factors
- Targeted plant recovery provides a key operational metric for future production forecasts.
Evidence · table
“78”
Context: Target average plant recovery from FY30
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.