ARL: Chief Financial Officer Appointment
Original announcement by asx on
- Company
- Ardea Resources Limited
- Ticker
- ARL
- Exchange
- ASX
- Region
- Eastern Goldfields, Western Australia
- Primary commodity
- Nickel
- Secondary commodities
- Cobalt
- Document categories
- Other, Resource update
- Extracted
- 2026-10-14 22:30:39 UTC
Analysis by Minestarters Atlas
Atlas analysis published:
Minestarters Atlas analysis
Summary
Ardea Resources Limited has announced the appointment of Mr Tony Sparks as interim Chief Financial Officer, effective October 15, 2026. Mr Sparks brings extensive experience in financial management and the resources sector. The announcement also includes a previously released Mineral Resource Estimate for its Kalgoorlie Nickel Project as background information, which is stated to be unchanged from its June 2023 release.
Reasoning: The document announces a routine CFO appointment, which is a neutral corporate event. The included Mineral Resource Estimate is explicitly stated as previously released and unchanged, thus having no novelty.
Positive factors
- Appointment of an experienced CFO
Facts used in scoring: 24
Classification and evidence
Stale Data Re-releasenegative · Story-specific tag
Historical results re-announced with no new assays or reinterpretation — low genuine novelty.
Why it applies: The Mineral Resource Estimate information is explicitly stated as previously released on June 30, 2023, and no material changes are reported.
Evidence · text
“The Mineral Resource Estimate information shown in this ASX announcement has been previously released on the ASX platform by Ardea in ASX release 30 June 2023”
JORC Compliantpositive
Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.
Why it applies: The Mineral Resource Estimate is reported following JORC Code (2012) guidelines.
Evidence · text
“KNP Mineral Resource Estimate (MRE) following JORC Code (2012) guidelines”
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 resource estimation is based on information reviewed or compiled by Mr Ian Buchhorn and Mr Andrew Penkethman, who are identified as Competent Persons.
Evidence · text
“The Resource Estimation, exploration and industry benchmarking summaries are based on information reviewed or compiled by Mr Ian Buchhorn and Mr Andrew Penkethman. ... qualify as a Competent Person”
Cut-off Disclosedpositive
Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.
Why it applies: A 0.5% nickel cutoff grade is explicitly stated for reporting resources.
Evidence · text
“Note: 0.5% nickel cutoff grade used to report resources.”
Extracted facts
Stored fact records: 24. Some facts used in scoring do not have a stored record.
Resource Estimates (24)
measuredKalgoorlie Nickel Project · nickelTonnes: 18000000Grade: 0.94Grade Unit: %Contained Metal: 171Contained Unit: ktHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Kalgoorlie Nickel Project
- Commodity
- nickel
- Region
- australia_wa
- Reported Region
- Eastern Goldfields, Western Australia
- Ticker
- ARL
Resource scope
- Estimate type
- resource
- Reporting standards
- jorc
- QP Signed
- Yes
- Qualified person names
- Mr Ian Buchhorn, Mr Andrew Penkethman
- Resource group id
- resource:785d083b12d569fdf2df
- Deposit or zone
- Goongarrie Hub
- Ownership percent
- 100 %
Resource Data
- Category
- measured
- Tonnes
- 18000000
- Grade
- 0.94
- Grade Unit
- %
- Contained Metal
- 171
- Contained Unit
- kt
- Cutoff Grade
- 0.5
- Cutoff Unit
- % nickel
Prior Estimate
- Resource Date
- 2023-06-30
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2023-06-30T00:00:00.000Z
Dates
- Event date
- 2026-10-14T00:00:00.000Z
Reasoning: This is a restatement of a previously released Measured resource for nickel at the Goongarrie Hub, with no new information.
Negative factors
- Stale Data Re-release
Evidence · table
“0.94”
Context: 18
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
PFS-Supportingneutral
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
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
Stale Estimatenegative
Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
Why it applies: effective date is 3.3 years before this release
measuredKalgoorlie Nickel Project · cobaltTonnes: 18000000Grade: 0.085Grade Unit: %Contained Metal: 15Contained Unit: ktHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Kalgoorlie Nickel Project
- Commodity
- cobalt
- Region
- australia_wa
- Reported Region
- Eastern Goldfields, Western Australia
- Ticker
- ARL
Resource scope
- Estimate type
- resource
- Reporting standards
- jorc
- QP Signed
- Yes
- Qualified person names
- Mr Ian Buchhorn, Mr Andrew Penkethman
- Resource group id
- resource:785d083b12d569fdf2df
- Deposit or zone
- Goongarrie Hub
- Ownership percent
- 100 %
Resource Data
- Category
- measured
- Tonnes
- 18000000
- Grade
- 0.085
- Grade Unit
- %
- Contained Metal
- 15
- Contained Unit
- kt
- Cutoff Grade
- 0.5
- Cutoff Unit
- % nickel
Prior Estimate
- Resource Date
- 2023-06-30
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2023-06-30T00:00:00.000Z
Dates
- Event date
- 2026-10-14T00:00:00.000Z
Reasoning: This is a restatement of a previously released Measured resource for cobalt at the Goongarrie Hub, with no new information.
Negative factors
- Stale Data Re-release
Evidence · table
“0.085”
Context: 18
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
PFS-Supportingneutral
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
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
Stale Estimatenegative
Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
Why it applies: effective date is 3.3 years before this release
indicatedKalgoorlie Nickel Project · nickelTonnes: 277000000Grade: 0.7Grade Unit: %Contained Metal: 1923Contained Unit: ktHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Kalgoorlie Nickel Project
- Commodity
- nickel
- Region
- australia_wa
- Reported Region
- Eastern Goldfields, Western Australia
- Ticker
- ARL
Resource scope
- Estimate type
- resource
- Reporting standards
- jorc
- QP Signed
- Yes
- Qualified person names
- Mr Ian Buchhorn, Mr Andrew Penkethman
- Resource group id
- resource:5a5cdff13a517f7eeefe
- Deposit or zone
- Goongarrie Hub
- Ownership percent
- 100 %
Resource Data
- Category
- indicated
- Tonnes
- 277000000
- Grade
- 0.7
- Grade Unit
- %
- Contained Metal
- 1923
- Contained Unit
- kt
- Cutoff Grade
- 0.5
- Cutoff Unit
- % nickel
Prior Estimate
- Resource Date
- 2023-06-30
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2023-06-30T00:00:00.000Z
Dates
- Event date
- 2026-10-14T00:00:00.000Z
Reasoning: This is a restatement of a previously released Indicated resource for nickel at the Goongarrie Hub, with no new information.
Negative factors
- Stale Data Re-release
Evidence · table
“0.70”
Context: 277
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
PFS-Supportingneutral
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
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
Stale Estimatenegative
Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
Why it applies: effective date is 3.3 years before this release
indicatedKalgoorlie Nickel Project · cobaltTonnes: 277000000Grade: 0.046Grade Unit: %Contained Metal: 127Contained Unit: ktHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Kalgoorlie Nickel Project
- Commodity
- cobalt
- Region
- australia_wa
- Reported Region
- Eastern Goldfields, Western Australia
- Ticker
- ARL
Resource scope
- Estimate type
- resource
- Reporting standards
- jorc
- QP Signed
- Yes
- Qualified person names
- Mr Ian Buchhorn, Mr Andrew Penkethman
- Resource group id
- resource:5a5cdff13a517f7eeefe
- Deposit or zone
- Goongarrie Hub
- Ownership percent
- 100 %
Resource Data
- Category
- indicated
- Tonnes
- 277000000
- Grade
- 0.046
- Grade Unit
- %
- Contained Metal
- 127
- Contained Unit
- kt
- Cutoff Grade
- 0.5
- Cutoff Unit
- % nickel
Prior Estimate
- Resource Date
- 2023-06-30
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2023-06-30T00:00:00.000Z
Dates
- Event date
- 2026-10-14T00:00:00.000Z
Reasoning: This is a restatement of a previously released Indicated resource for cobalt at the Goongarrie Hub, with no new information.
Negative factors
- Stale Data Re-release
Evidence · table
“0.046”
Context: 277
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
PFS-Supportingneutral
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
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
Stale Estimatenegative
Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
Why it applies: effective date is 3.3 years before this release
inferredKalgoorlie Nickel Project · nickelTonnes: 289000000Grade: 0.67Grade Unit: %Contained Metal: 1951Contained Unit: ktHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Kalgoorlie Nickel Project
- Commodity
- nickel
- Region
- australia_wa
- Reported Region
- Eastern Goldfields, Western Australia
- Ticker
- ARL
Resource scope
- Estimate type
- resource
- Reporting standards
- jorc
- QP Signed
- Yes
- Qualified person names
- Mr Ian Buchhorn, Mr Andrew Penkethman
- Resource group id
- resource:2ff0e129497cb5880a09
- Deposit or zone
- Goongarrie Hub
- Ownership percent
- 100 %
Resource Data
- Category
- inferred
- Tonnes
- 289000000
- Grade
- 0.67
- Grade Unit
- %
- Contained Metal
- 1951
- Contained Unit
- kt
- Cutoff Grade
- 0.5
- Cutoff Unit
- % nickel
Prior Estimate
- Resource Date
- 2023-06-30
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2023-06-30T00:00:00.000Z
Dates
- Event date
- 2026-10-14T00:00:00.000Z
Reasoning: This is a restatement of a previously released Inferred resource for nickel at the Goongarrie Hub, with no new information.
Negative factors
- Stale Data Re-release
Evidence · table
“0.67”
Context: 289
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
PFS-Supportingneutral
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
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
Stale Estimatenegative
Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
Why it applies: effective date is 3.3 years before this release
inferredKalgoorlie Nickel Project · cobaltTonnes: 289000000Grade: 0.037Grade Unit: %Contained Metal: 108Contained Unit: ktHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Kalgoorlie Nickel Project
- Commodity
- cobalt
- Region
- australia_wa
- Reported Region
- Eastern Goldfields, Western Australia
- Ticker
- ARL
Resource scope
- Estimate type
- resource
- Reporting standards
- jorc
- QP Signed
- Yes
- Qualified person names
- Mr Ian Buchhorn, Mr Andrew Penkethman
- Resource group id
- resource:2ff0e129497cb5880a09
- Deposit or zone
- Goongarrie Hub
- Ownership percent
- 100 %
Resource Data
- Category
- inferred
- Tonnes
- 289000000
- Grade
- 0.037
- Grade Unit
- %
- Contained Metal
- 108
- Contained Unit
- kt
- Cutoff Grade
- 0.5
- Cutoff Unit
- % nickel
Prior Estimate
- Resource Date
- 2023-06-30
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2023-06-30T00:00:00.000Z
Dates
- Event date
- 2026-10-14T00:00:00.000Z
Reasoning: This is a restatement of a previously released Inferred resource for cobalt at the Goongarrie Hub, with no new information.
Negative factors
- Stale Data Re-release
Evidence · table
“0.037”
Context: 289
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
PFS-Supportingneutral
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
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
Stale Estimatenegative
Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
Why it applies: effective date is 3.3 years before this release
inferredKalgoorlie Nickel Project · nickelTonnes: 584000000Grade: 0.69Grade Unit: %Contained Metal: 4044Contained Unit: ktHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Kalgoorlie Nickel Project
- Commodity
- nickel
- Region
- australia_wa
- Reported Region
- Eastern Goldfields, Western Australia
- Ticker
- ARL
Resource scope
- Estimate type
- resource
- Reporting standards
- jorc
- QP Signed
- Yes
- Qualified person names
- Mr Ian Buchhorn, Mr Andrew Penkethman
- Resource group id
- resource:98e8e4dfa5efeced8bad
- Deposit or zone
- Goongarrie Hub
- Ownership percent
- 65 %
Resource Data
- Category
- inferred
- Tonnes
- 584000000
- Grade
- 0.69
- Grade Unit
- %
- Contained Metal
- 4044
- Contained Unit
- kt
- Cutoff Grade
- 0.5
- Cutoff Unit
- % nickel
Prior Estimate
- Resource Date
- 2023-06-30
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2023-06-30T00:00:00.000Z
Dates
- Event date
- 2026-10-14T00:00:00.000Z
Reasoning: This is a restatement of a previously released combined resource for nickel at the Goongarrie Hub, with no new information.
Negative factors
- Stale Data Re-release
Evidence · table
“0.69”
Context: 584
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
PFS-Supportingneutral
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
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
Stale Estimatenegative
Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
Why it applies: effective date is 3.3 years before this release
inferredKalgoorlie Nickel Project · cobaltTonnes: 584000000Grade: 0.043Grade Unit: %Contained Metal: 250Contained Unit: ktHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Kalgoorlie Nickel Project
- Commodity
- cobalt
- Region
- australia_wa
- Reported Region
- Eastern Goldfields, Western Australia
- Ticker
- ARL
Resource scope
- Estimate type
- resource
- Reporting standards
- jorc
- QP Signed
- Yes
- Qualified person names
- Mr Ian Buchhorn, Mr Andrew Penkethman
- Resource group id
- resource:98e8e4dfa5efeced8bad
- Deposit or zone
- Goongarrie Hub
- Ownership percent
- 65 %
Resource Data
- Category
- inferred
- Tonnes
- 584000000
- Grade
- 0.043
- Grade Unit
- %
- Contained Metal
- 250
- Contained Unit
- kt
- Cutoff Grade
- 0.5
- Cutoff Unit
- % nickel
Prior Estimate
- Resource Date
- 2023-06-30
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2023-06-30T00:00:00.000Z
Dates
- Event date
- 2026-10-14T00:00:00.000Z
Reasoning: This is a restatement of a previously released combined resource for cobalt at the Goongarrie Hub, with no new information.
Negative factors
- Stale Data Re-release
Evidence · table
“0.043”
Context: 584
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
PFS-Supportingneutral
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
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
Stale Estimatenegative
Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
Why it applies: effective date is 3.3 years before this release
measuredKalgoorlie Nickel Project · nickelTonnes: 4000000Grade: 0.94Grade Unit: %Contained Metal: 36Contained Unit: ktHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Kalgoorlie Nickel Project
- Commodity
- nickel
- Region
- australia_wa
- Reported Region
- Eastern Goldfields, Western Australia
- Ticker
- ARL
Resource scope
- Estimate type
- resource
- Reporting standards
- jorc
- QP Signed
- Yes
- Qualified person names
- Mr Ian Buchhorn, Mr Andrew Penkethman
- Resource group id
- resource:be4c2cec04862b0e8ba9
- Deposit or zone
- Kalpini Hub including Yerilla Hub
- Ownership percent
- 100 %
Resource Data
- Category
- measured
- Tonnes
- 4000000
- Grade
- 0.94
- Grade Unit
- %
- Contained Metal
- 36
- Contained Unit
- kt
- Cutoff Grade
- 0.5
- Cutoff Unit
- % nickel
Prior Estimate
- Resource Date
- 2023-06-30
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2023-06-30T00:00:00.000Z
Dates
- Event date
- 2026-10-14T00:00:00.000Z
Reasoning: This is a restatement of a previously released Measured resource for nickel at the Kalpini Hub, with no new information.
Negative factors
- Stale Data Re-release
Evidence · table
“0.94”
Context: 4
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
PFS-Supportingneutral
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
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
Stale Estimatenegative
Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
Why it applies: effective date is 3.3 years before this release
measuredKalgoorlie Nickel Project · cobaltTonnes: 4000000Grade: 0.048Grade Unit: %Contained Metal: 2Contained Unit: ktHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Kalgoorlie Nickel Project
- Commodity
- cobalt
- Region
- australia_wa
- Reported Region
- Eastern Goldfields, Western Australia
- Ticker
- ARL
Resource scope
- Estimate type
- resource
- Reporting standards
- jorc
- QP Signed
- Yes
- Qualified person names
- Mr Ian Buchhorn, Mr Andrew Penkethman
- Resource group id
- resource:be4c2cec04862b0e8ba9
- Deposit or zone
- Kalpini Hub including Yerilla Hub
- Ownership percent
- 100 %
Resource Data
- Category
- measured
- Tonnes
- 4000000
- Grade
- 0.048
- Grade Unit
- %
- Contained Metal
- 2
- Contained Unit
- kt
- Cutoff Grade
- 0.5
- Cutoff Unit
- % nickel
Prior Estimate
- Resource Date
- 2023-06-30
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2023-06-30T00:00:00.000Z
Dates
- Event date
- 2026-10-14T00:00:00.000Z
Reasoning: This is a restatement of a previously released Measured resource for cobalt at the Kalpini Hub, with no new information.
Negative factors
- Stale Data Re-release
Evidence · table
“0.048”
Context: 4
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
PFS-Supportingneutral
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
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
Stale Estimatenegative
Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
Why it applies: effective date is 3.3 years before this release
indicatedKalgoorlie Nickel Project · nickelTonnes: 84000000Grade: 0.83Grade Unit: %Contained Metal: 699Contained Unit: ktHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Kalgoorlie Nickel Project
- Commodity
- nickel
- Region
- australia_wa
- Reported Region
- Eastern Goldfields, Western Australia
- Ticker
- ARL
Resource scope
- Estimate type
- resource
- Reporting standards
- jorc
- QP Signed
- Yes
- Qualified person names
- Mr Ian Buchhorn, Mr Andrew Penkethman
- Resource group id
- resource:dfc57cd8642cd0f00966
- Deposit or zone
- Kalpini Hub including Yerilla Hub
- Ownership percent
- 100 %
Resource Data
- Category
- indicated
- Tonnes
- 84000000
- Grade
- 0.83
- Grade Unit
- %
- Contained Metal
- 699
- Contained Unit
- kt
- Cutoff Grade
- 0.5
- Cutoff Unit
- % nickel
Prior Estimate
- Resource Date
- 2023-06-30
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2023-06-30T00:00:00.000Z
Dates
- Event date
- 2026-10-14T00:00:00.000Z
Reasoning: This is a restatement of a previously released Indicated resource for nickel at the Kalpini Hub, with no new information.
Negative factors
- Stale Data Re-release
Evidence · table
“0.83”
Context: 84
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
PFS-Supportingneutral
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
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
Stale Estimatenegative
Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
Why it applies: effective date is 3.3 years before this release
indicatedKalgoorlie Nickel Project · cobaltTonnes: 84000000Grade: 0.05Grade Unit: %Contained Metal: 42Contained Unit: ktHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Kalgoorlie Nickel Project
- Commodity
- cobalt
- Region
- australia_wa
- Reported Region
- Eastern Goldfields, Western Australia
- Ticker
- ARL
Resource scope
- Estimate type
- resource
- Reporting standards
- jorc
- QP Signed
- Yes
- Qualified person names
- Mr Ian Buchhorn, Mr Andrew Penkethman
- Resource group id
- resource:dfc57cd8642cd0f00966
- Deposit or zone
- Kalpini Hub including Yerilla Hub
- Ownership percent
- 100 %
Resource Data
- Category
- indicated
- Tonnes
- 84000000
- Grade
- 0.05
- Grade Unit
- %
- Contained Metal
- 42
- Contained Unit
- kt
- Cutoff Grade
- 0.5
- Cutoff Unit
- % nickel
Prior Estimate
- Resource Date
- 2023-06-30
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2023-06-30T00:00:00.000Z
Dates
- Event date
- 2026-10-14T00:00:00.000Z
Reasoning: This is a restatement of a previously released Indicated resource for cobalt at the Kalpini Hub, with no new information.
Negative factors
- Stale Data Re-release
Evidence · table
“0.050”
Context: 84
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
PFS-Supportingneutral
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
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
Stale Estimatenegative
Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
Why it applies: effective date is 3.3 years before this release
inferredKalgoorlie Nickel Project · nickelTonnes: 182000000Grade: 0.73Grade Unit: %Contained Metal: 1321Contained Unit: ktHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Kalgoorlie Nickel Project
- Commodity
- nickel
- Region
- australia_wa
- Reported Region
- Eastern Goldfields, Western Australia
- Ticker
- ARL
Resource scope
- Estimate type
- resource
- Reporting standards
- jorc
- QP Signed
- Yes
- Qualified person names
- Mr Ian Buchhorn, Mr Andrew Penkethman
- Resource group id
- resource:81571c22b9e7cffc1125
- Deposit or zone
- Kalpini Hub including Yerilla Hub
- Ownership percent
- 100 %
Resource Data
- Category
- inferred
- Tonnes
- 182000000
- Grade
- 0.73
- Grade Unit
- %
- Contained Metal
- 1321
- Contained Unit
- kt
- Cutoff Grade
- 0.5
- Cutoff Unit
- % nickel
Prior Estimate
- Resource Date
- 2023-06-30
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2023-06-30T00:00:00.000Z
Dates
- Event date
- 2026-10-14T00:00:00.000Z
Reasoning: This is a restatement of a previously released Inferred resource for nickel at the Kalpini Hub, with no new information.
Negative factors
- Stale Data Re-release
Evidence · table
“0.73”
Context: 182
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
PFS-Supportingneutral
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
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
Stale Estimatenegative
Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
Why it applies: effective date is 3.3 years before this release
inferredKalgoorlie Nickel Project · cobaltTonnes: 182000000Grade: 0.051Grade Unit: %Contained Metal: 92Contained Unit: ktHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Kalgoorlie Nickel Project
- Commodity
- cobalt
- Region
- australia_wa
- Reported Region
- Eastern Goldfields, Western Australia
- Ticker
- ARL
Resource scope
- Estimate type
- resource
- Reporting standards
- jorc
- QP Signed
- Yes
- Qualified person names
- Mr Ian Buchhorn, Mr Andrew Penkethman
- Resource group id
- resource:81571c22b9e7cffc1125
- Deposit or zone
- Kalpini Hub including Yerilla Hub
- Ownership percent
- 100 %
Resource Data
- Category
- inferred
- Tonnes
- 182000000
- Grade
- 0.051
- Grade Unit
- %
- Contained Metal
- 92
- Contained Unit
- kt
- Cutoff Grade
- 0.5
- Cutoff Unit
- % nickel
Prior Estimate
- Resource Date
- 2023-06-30
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2023-06-30T00:00:00.000Z
Dates
- Event date
- 2026-10-14T00:00:00.000Z
Reasoning: This is a restatement of a previously released Inferred resource for cobalt at the Kalpini Hub, with no new information.
Negative factors
- Stale Data Re-release
Evidence · table
“0.051”
Context: 182
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
PFS-Supportingneutral
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
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
Stale Estimatenegative
Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
Why it applies: effective date is 3.3 years before this release
inferredKalgoorlie Nickel Project · nickelTonnes: 270000000Grade: 0.76Grade Unit: %Contained Metal: 2056Contained Unit: ktHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Kalgoorlie Nickel Project
- Commodity
- nickel
- Region
- australia_wa
- Reported Region
- Eastern Goldfields, Western Australia
- Ticker
- ARL
Resource scope
- Estimate type
- resource
- Reporting standards
- jorc
- QP Signed
- Yes
- Qualified person names
- Mr Ian Buchhorn, Mr Andrew Penkethman
- Resource group id
- resource:669b778d4e0020b4e84c
- Deposit or zone
- Kalpini Hub including Yerilla Hub
- Ownership percent
- 100 %
Resource Data
- Category
- inferred
- Tonnes
- 270000000
- Grade
- 0.76
- Grade Unit
- %
- Contained Metal
- 2056
- Contained Unit
- kt
- Cutoff Grade
- 0.5
- Cutoff Unit
- % nickel
Prior Estimate
- Resource Date
- 2023-06-30
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2023-06-30T00:00:00.000Z
Dates
- Event date
- 2026-10-14T00:00:00.000Z
Reasoning: This is a restatement of a previously released combined resource for nickel at the Kalpini Hub, with no new information.
Negative factors
- Stale Data Re-release
Evidence · table
“0.76”
Context: 270
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
PFS-Supportingneutral
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
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
Stale Estimatenegative
Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
Why it applies: effective date is 3.3 years before this release
inferredKalgoorlie Nickel Project · cobaltTonnes: 270000000Grade: 0.05Grade Unit: %Contained Metal: 136Contained Unit: ktHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Kalgoorlie Nickel Project
- Commodity
- cobalt
- Region
- australia_wa
- Reported Region
- Eastern Goldfields, Western Australia
- Ticker
- ARL
Resource scope
- Estimate type
- resource
- Reporting standards
- jorc
- QP Signed
- Yes
- Qualified person names
- Mr Ian Buchhorn, Mr Andrew Penkethman
- Resource group id
- resource:669b778d4e0020b4e84c
- Deposit or zone
- Kalpini Hub including Yerilla Hub
- Ownership percent
- 100 %
Resource Data
- Category
- inferred
- Tonnes
- 270000000
- Grade
- 0.05
- Grade Unit
- %
- Contained Metal
- 136
- Contained Unit
- kt
- Cutoff Grade
- 0.5
- Cutoff Unit
- % nickel
Prior Estimate
- Resource Date
- 2023-06-30
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2023-06-30T00:00:00.000Z
Dates
- Event date
- 2026-10-14T00:00:00.000Z
Reasoning: This is a restatement of a previously released combined resource for cobalt at the Kalpini Hub, with no new information.
Negative factors
- Stale Data Re-release
Evidence · table
“0.050”
Context: 270
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
PFS-Supportingneutral
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
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
Stale Estimatenegative
Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
Why it applies: effective date is 3.3 years before this release
measuredKalgoorlie Nickel Project · nickelTonnes: 22000000Grade: 0.94Grade Unit: %Contained Metal: 207Contained Unit: ktHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Kalgoorlie Nickel Project
- Commodity
- nickel
- Region
- australia_wa
- Reported Region
- Eastern Goldfields, Western Australia
- Ticker
- ARL
Resource scope
- Estimate type
- resource
- Reporting standards
- jorc
- QP Signed
- Yes
- Qualified person names
- Mr Ian Buchhorn, Mr Andrew Penkethman
- Resource group id
- resource:ccdd0ecb1916f0367ec3
- Deposit or zone
- Kalgoorlie Nickel Project Total
- Ownership percent
- 100 %
Resource Data
- Category
- measured
- Tonnes
- 22000000
- Grade
- 0.94
- Grade Unit
- %
- Contained Metal
- 207
- Contained Unit
- kt
- Cutoff Grade
- 0.5
- Cutoff Unit
- % nickel
Prior Estimate
- Resource Date
- 2023-06-30
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2023-06-30T00:00:00.000Z
Dates
- Event date
- 2026-10-14T00:00:00.000Z
Reasoning: This is a restatement of a previously released Measured resource for nickel at the Kalgoorlie Nickel Project Total, with no new information.
Negative factors
- Stale Data Re-release
Evidence · table
“0.94”
Context: 22
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
PFS-Supportingneutral
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
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
Stale Estimatenegative
Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
Why it applies: effective date is 3.3 years before this release
measuredKalgoorlie Nickel Project · cobaltTonnes: 22000000Grade: 0.079Grade Unit: %Contained Metal: 17Contained Unit: ktHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Kalgoorlie Nickel Project
- Commodity
- cobalt
- Region
- australia_wa
- Reported Region
- Eastern Goldfields, Western Australia
- Ticker
- ARL
Resource scope
- Estimate type
- resource
- Reporting standards
- jorc
- QP Signed
- Yes
- Qualified person names
- Mr Ian Buchhorn, Mr Andrew Penkethman
- Resource group id
- resource:ccdd0ecb1916f0367ec3
- Deposit or zone
- Kalgoorlie Nickel Project Total
- Ownership percent
- 100 %
Resource Data
- Category
- measured
- Tonnes
- 22000000
- Grade
- 0.079
- Grade Unit
- %
- Contained Metal
- 17
- Contained Unit
- kt
- Cutoff Grade
- 0.5
- Cutoff Unit
- % nickel
Prior Estimate
- Resource Date
- 2023-06-30
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2023-06-30T00:00:00.000Z
Dates
- Event date
- 2026-10-14T00:00:00.000Z
Reasoning: This is a restatement of a previously released Measured resource for cobalt at the Kalgoorlie Nickel Project Total, with no new information.
Negative factors
- Stale Data Re-release
Evidence · table
“0.079”
Context: 22
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
PFS-Supportingneutral
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
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
Stale Estimatenegative
Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
Why it applies: effective date is 3.3 years before this release
indicatedKalgoorlie Nickel Project · nickelTonnes: 361000000Grade: 0.73Grade Unit: %Contained Metal: 2622Contained Unit: ktHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Kalgoorlie Nickel Project
- Commodity
- nickel
- Region
- australia_wa
- Reported Region
- Eastern Goldfields, Western Australia
- Ticker
- ARL
Resource scope
- Estimate type
- resource
- Reporting standards
- jorc
- QP Signed
- Yes
- Qualified person names
- Mr Ian Buchhorn, Mr Andrew Penkethman
- Resource group id
- resource:c689ad7fd10faa5ec99b
- Deposit or zone
- Kalgoorlie Nickel Project Total
- Ownership percent
- 100 %
Resource Data
- Category
- indicated
- Tonnes
- 361000000
- Grade
- 0.73
- Grade Unit
- %
- Contained Metal
- 2622
- Contained Unit
- kt
- Cutoff Grade
- 0.5
- Cutoff Unit
- % nickel
Prior Estimate
- Resource Date
- 2023-06-30
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2023-06-30T00:00:00.000Z
Dates
- Event date
- 2026-10-14T00:00:00.000Z
Reasoning: This is a restatement of a previously released Indicated resource for nickel at the Kalgoorlie Nickel Project Total, with no new information.
Negative factors
- Stale Data Re-release
Evidence · table
“0.73”
Context: 361
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
PFS-Supportingneutral
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
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
Stale Estimatenegative
Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
Why it applies: effective date is 3.3 years before this release
indicatedKalgoorlie Nickel Project · cobaltTonnes: 361000000Grade: 0.047Grade Unit: %Contained Metal: 169Contained Unit: ktHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Kalgoorlie Nickel Project
- Commodity
- cobalt
- Region
- australia_wa
- Reported Region
- Eastern Goldfields, Western Australia
- Ticker
- ARL
Resource scope
- Estimate type
- resource
- Reporting standards
- jorc
- QP Signed
- Yes
- Qualified person names
- Mr Ian Buchhorn, Mr Andrew Penkethman
- Resource group id
- resource:c689ad7fd10faa5ec99b
- Deposit or zone
- Kalgoorlie Nickel Project Total
- Ownership percent
- 100 %
Resource Data
- Category
- indicated
- Tonnes
- 361000000
- Grade
- 0.047
- Grade Unit
- %
- Contained Metal
- 169
- Contained Unit
- kt
- Cutoff Grade
- 0.5
- Cutoff Unit
- % nickel
Prior Estimate
- Resource Date
- 2023-06-30
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2023-06-30T00:00:00.000Z
Dates
- Event date
- 2026-10-14T00:00:00.000Z
Reasoning: This is a restatement of a previously released Indicated resource for cobalt at the Kalgoorlie Nickel Project Total, with no new information.
Negative factors
- Stale Data Re-release
Evidence · table
“0.047”
Context: 361
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
PFS-Supportingneutral
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
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
Stale Estimatenegative
Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
Why it applies: effective date is 3.3 years before this release
inferredKalgoorlie Nickel Project · nickelTonnes: 471000000Grade: 0.7Grade Unit: %Contained Metal: 3272Contained Unit: ktHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Kalgoorlie Nickel Project
- Commodity
- nickel
- Region
- australia_wa
- Reported Region
- Eastern Goldfields, Western Australia
- Ticker
- ARL
Resource scope
- Estimate type
- resource
- Reporting standards
- jorc
- QP Signed
- Yes
- Qualified person names
- Mr Ian Buchhorn, Mr Andrew Penkethman
- Resource group id
- resource:37d3de7a7559ba98b880
- Deposit or zone
- Kalgoorlie Nickel Project Total
- Ownership percent
- 100 %
Resource Data
- Category
- inferred
- Tonnes
- 471000000
- Grade
- 0.7
- Grade Unit
- %
- Contained Metal
- 3272
- Contained Unit
- kt
- Cutoff Grade
- 0.5
- Cutoff Unit
- % nickel
Prior Estimate
- Resource Date
- 2023-06-30
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2023-06-30T00:00:00.000Z
Dates
- Event date
- 2026-10-14T00:00:00.000Z
Reasoning: This is a restatement of a previously released Inferred resource for nickel at the Kalgoorlie Nickel Project Total, with no new information.
Negative factors
- Stale Data Re-release
Evidence · table
“0.70”
Context: 471
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
PFS-Supportingneutral
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
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
Stale Estimatenegative
Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
Why it applies: effective date is 3.3 years before this release
inferredKalgoorlie Nickel Project · cobaltTonnes: 471000000Grade: 0.043Grade Unit: %Contained Metal: 200Contained Unit: ktHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Kalgoorlie Nickel Project
- Commodity
- cobalt
- Region
- australia_wa
- Reported Region
- Eastern Goldfields, Western Australia
- Ticker
- ARL
Resource scope
- Estimate type
- resource
- Reporting standards
- jorc
- QP Signed
- Yes
- Qualified person names
- Mr Ian Buchhorn, Mr Andrew Penkethman
- Resource group id
- resource:37d3de7a7559ba98b880
- Deposit or zone
- Kalgoorlie Nickel Project Total
- Ownership percent
- 100 %
Resource Data
- Category
- inferred
- Tonnes
- 471000000
- Grade
- 0.043
- Grade Unit
- %
- Contained Metal
- 200
- Contained Unit
- kt
- Cutoff Grade
- 0.5
- Cutoff Unit
- % nickel
Prior Estimate
- Resource Date
- 2023-06-30
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2023-06-30T00:00:00.000Z
Dates
- Event date
- 2026-10-14T00:00:00.000Z
Reasoning: This is a restatement of a previously released Inferred resource for cobalt at the Kalgoorlie Nickel Project Total, with no new information.
Negative factors
- Stale Data Re-release
Evidence · table
“0.043”
Context: 471
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
PFS-Supportingneutral
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
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
Stale Estimatenegative
Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
Why it applies: effective date is 3.3 years before this release
inferredKalgoorlie Nickel Project · nickelTonnes: 854000000Grade: 0.71Grade Unit: %Contained Metal: 6101Contained Unit: ktHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Kalgoorlie Nickel Project
- Commodity
- nickel
- Region
- australia_wa
- Reported Region
- Eastern Goldfields, Western Australia
- Ticker
- ARL
Resource scope
- Estimate type
- resource
- Reporting standards
- jorc
- QP Signed
- Yes
- Qualified person names
- Mr Ian Buchhorn, Mr Andrew Penkethman
- Resource group id
- resource:64d2a10ac2806625fdb8
- Deposit or zone
- Kalgoorlie Nickel Project Total
Resource Data
- Category
- inferred
- Tonnes
- 854000000
- Grade
- 0.71
- Grade Unit
- %
- Contained Metal
- 6101
- Contained Unit
- kt
- Cutoff Grade
- 0.5
- Cutoff Unit
- % nickel
Prior Estimate
- Resource Date
- 2023-06-30
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2023-06-30T00:00:00.000Z
Dates
- Event date
- 2026-10-14T00:00:00.000Z
Reasoning: This is a restatement of a previously released Grand Total resource for nickel at the Kalgoorlie Nickel Project, with no new information.
Negative factors
- Stale Data Re-release
Evidence · table
“0.71”
Context: 854
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
PFS-Supportingneutral
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
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
Stale Estimatenegative
Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
Why it applies: effective date is 3.3 years before this release
inferredKalgoorlie Nickel Project · cobaltTonnes: 854000000Grade: 0.045Grade Unit: %Contained Metal: 386Contained Unit: ktHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Kalgoorlie Nickel Project
- Commodity
- cobalt
- Region
- australia_wa
- Reported Region
- Eastern Goldfields, Western Australia
- Ticker
- ARL
Resource scope
- Estimate type
- resource
- Reporting standards
- jorc
- QP Signed
- Yes
- Qualified person names
- Mr Ian Buchhorn, Mr Andrew Penkethman
- Resource group id
- resource:64d2a10ac2806625fdb8
- Deposit or zone
- Kalgoorlie Nickel Project Total
Resource Data
- Category
- inferred
- Tonnes
- 854000000
- Grade
- 0.045
- Grade Unit
- %
- Contained Metal
- 386
- Contained Unit
- kt
- Cutoff Grade
- 0.5
- Cutoff Unit
- % nickel
Prior Estimate
- Resource Date
- 2023-06-30
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2023-06-30T00:00:00.000Z
Dates
- Event date
- 2026-10-14T00:00:00.000Z
Reasoning: This is a restatement of a previously released Grand Total resource for cobalt at the Kalgoorlie Nickel Project, with no new information.
Negative factors
- Stale Data Re-release
Evidence · table
“0.045”
Context: 854
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
PFS-Supportingneutral
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
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
Stale Estimatenegative
Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
Why it applies: effective date is 3.3 years before this release
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.