RTR: Earaheedy Zinc project Update
Original announcement by asx on
- Company
- Rumble Resources Limited
- Ticker
- RTR
- Exchange
- ASX
- Region
- Western Australia
- Primary commodity
- Zinc
- Secondary commodities
- Lead, Silver
- Document categories
- Resource update, Metallurgy
- Extracted
- 2026-10-12 23:29:45 UTC
Analysis by Minestarters Atlas
Atlas analysis published:
Minestarters Atlas analysis
Summary
Rumble Resources has provided an update on its Earaheedy Zinc-Lead-Silver Project in Western Australia, highlighting a globally significant Inferred Mineral Resource of 94Mt at 3.1% Zn+Pb and 4.1g/t Ag. New metallurgical testwork on Chinook material demonstrated excellent zinc recoveries of 79% into a high-grade bulk concentrate, with potential for a simplified and cost-efficient flowsheet using innovative HydroFloat™ technology. The company plans further metallurgical work to separate zinc and lead/silver concentrates and is seeking strategic partners amidst a strengthening zinc price and tight bulk concentrate market.
Reasoning: The update re-emphasizes a globally significant, but stale and 100% inferred, zinc-lead-silver resource. It also highlights positive metallurgical testwork results that suggest a simplified and cost-efficient processing strategy, though these results are a re-statement of prior news. The main positive novelty comes from the market commentary on strengthening zinc prices and a tight bulk concentrate market.
Positive factors
- Globally significant resource
- Positive metallurgical recoveries
- Potential for reduced plant footprint and operating costs
- Simplified flowsheet
- Strengthening zinc price
- Tight bulk concentrate market
- Exploration upside
Negative factors
- Resource is 100% Inferred
- Resource estimate is stale (effective date >2 years old)
- Metallurgical results are a re-statement of prior news
- Metal equivalent assumptions not disclosed
Facts used in scoring: 19
Classification and evidence
Inferred Resourcenegative
Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone.
Why it applies: The document reports a 'Maiden Inferred Mineral Resource Estimate'.
Evidence · text
“Maiden Inferred Mineral Resource Estimate”
All Inferrednegative
100% of resource is Inferred category — very early stage, no engineering confidence.
Why it applies: The resource tabulation is entirely for 'Inferred' categories.
Evidence · text
“Maiden Inferred Mineral Resource tabulation”
JORC Compliantpositive
Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.
Why it applies: The document states that resource estimates are prepared in accordance with the JORC classification system.
Evidence · text
“prepared in accordance with the requirements of Australian securities laws, which may differ from the requirements of United States and other country securities laws. Unless otherwise indicated, all ore reserve and mineral resource estimates included or incorporated by reference in this document have been, and will be, prepared in accordance with the JORC classification system of the Australasian Institute of Mining, and Metallurgy and Australian Institute of Geoscientists.”
Cut-off Disclosedpositive
Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.
Why it applies: The resource estimate is reported 'at a 2% Zn+Pb cutoff' and the table provides various cut-off grades.
Evidence · text
“at a 2% Zn+Pb cutoff”
Metal Equivalent Opaquenegative · Story-specific tag
Metal equivalent grade reported without disclosing the price, recovery, or payability assumptions used.
Why it applies: The resource reports a 'Zn+Pb' equivalent grade without disclosing the underlying price, recovery, or payability assumptions.
Evidence · text
“3.1% Zn+Pb”
Stale Estimatenegative
Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
Why it applies: The effective date of the resource estimate is April 2023, which is more than two years old at the time of this October 2026 announcement.
Evidence · text
“In April 2023 the Company announced a globally significant, pit constrained, maiden Inferred Mineral Resource Estimate”
High Recoverypositive
Recovery at or above the exceptional band for the commodity and processing route.
Why it applies: 79% Zn recovery is considered strong for flotation processing.
Evidence · text
“recoveries of 79% Zn were achieved”
Pilot Scale Completepositive
Pilot or demonstration plant testing completed under continuous operation.
Why it applies: The metallurgical testwork included 'Pilot beneficiation trials'.
Evidence · text
“Pilot beneficiation trials”
Stale Data Re-releasenegative · Story-specific tag
Historical results re-announced with no new assays or reinterpretation — low genuine novelty.
Why it applies: The metallurgical results are re-stated from a November 2024 ASX release.
Evidence · text
“The metallurgical test work program was completed in November 2024 and the highlights included2: ... 2 Refer Rumble ASX release dated 28 November 2024 titled “Excellent Metallurgical Results for Earaheedy Project””
Mill Routeneutral
Processing via mill or concentrator (CIL, CIP, tank leach, flotation).
Why it applies: the document describes a flotation route ("flotation")
Gravity Routeneutral
Gravity separation forms a material part of the flowsheet.
Why it applies: the document describes a gravity route ("DMS")
Single Domain Onlynegative
Testing limited to one composite or domain — representativeness not established.
Why it applies: only one composite was tested
Extracted facts
Stored fact records: 19. Some facts used in scoring do not have a stored record.
Resource Estimates (18)
inferredEaraheedy Project · zincTonnes: 462000000Grade: 1Grade Unit: %Historical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Earaheedy Project
- Commodity
- zinc
- Region
- australia_wa
- Reported Region
- Western Australia
- Ticker
- RTR
Resource scope
- Estimate type
- resource
- Reporting standards
- jorc
- Resource group id
- resource:2cce626685c65decc1a4
Resource Data
- Category
- inferred
- Tonnes
- 462000000
- Grade
- 1
- Grade Unit
- %
- Cutoff Grade
- 0.5
- Cutoff Unit
- % Zn+Pb
Prior Estimate
- Resource Date
- 2023-04-19
Metal Equivalent
- Metal Eq. Grade
- 1.3
- Metal Eq. Unit
- % Zn+Pb
- Assumptions Disclosed
- No
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2023-04-19T00:00:00.000Z
Dates
- Event date
- 2026-10-12T00:00:00.000Z
Reasoning: The resource estimate is large and JORC compliant, but it is 100% Inferred, stale (effective date April 2023), and the metal equivalent assumptions are not disclosed.
Positive factors
- Globally significant tonnage
- JORC compliant
Negative factors
- 100% Inferred category
- Stale estimate (effective date >2 years old)
- Metal equivalent assumptions not disclosed
Evidence · table
“1.0”
Context: 462
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
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
PEA-Supportingneutral
Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.
Why it applies: the release names the study this estimate supports
DFS-Supportingneutral
Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.
Why it applies: the release names the study this estimate supports
Stale Estimatenegative
Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
Why it applies: effective date is 3.5 years before this release
inferredEaraheedy Project · leadTonnes: 462000000Grade: 0.3Grade Unit: %Historical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Earaheedy Project
- Commodity
- lead
- Region
- australia_wa
- Reported Region
- Western Australia
- Ticker
- RTR
Resource scope
- Estimate type
- resource
- Reporting standards
- jorc
- Resource group id
- resource:2cce626685c65decc1a4
Resource Data
- Category
- inferred
- Tonnes
- 462000000
- Grade
- 0.3
- Grade Unit
- %
- Cutoff Grade
- 0.5
- Cutoff Unit
- % Zn+Pb
Prior Estimate
- Resource Date
- 2023-04-19
Metal Equivalent
- Metal Eq. Grade
- 1.3
- Metal Eq. Unit
- % Zn+Pb
- Assumptions Disclosed
- No
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2023-04-19T00:00:00.000Z
Dates
- Event date
- 2026-10-12T00:00:00.000Z
Reasoning: The resource estimate is large and JORC compliant, but it is 100% Inferred, stale (effective date April 2023), and the metal equivalent assumptions are not disclosed.
Positive factors
- Globally significant tonnage
- JORC compliant
Negative factors
- 100% Inferred category
- Stale estimate (effective date >2 years old)
- Metal equivalent assumptions not disclosed
Evidence · table
“0.3”
Context: 462
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
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
PEA-Supportingneutral
Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.
Why it applies: the release names the study this estimate supports
DFS-Supportingneutral
Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.
Why it applies: the release names the study this estimate supports
Stale Estimatenegative
Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
Why it applies: effective date is 3.5 years before this release
inferredEaraheedy Project · silverTonnes: 462000000Grade: 2.2Grade Unit: g/tHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Earaheedy Project
- Commodity
- silver
- Region
- australia_wa
- Reported Region
- Western Australia
- Ticker
- RTR
Resource scope
- Estimate type
- resource
- Reporting standards
- jorc
- Resource group id
- resource:2cce626685c65decc1a4
Resource Data
- Category
- inferred
- Tonnes
- 462000000
- Grade
- 2.2
- Grade Unit
- g/t
- Cutoff Grade
- 0.5
- Cutoff Unit
- % Zn+Pb
Prior Estimate
- Resource Date
- 2023-04-19
Metal Equivalent
- Metal Eq. Grade
- 1.3
- Metal Eq. Unit
- % Zn+Pb
- Assumptions Disclosed
- No
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2023-04-19T00:00:00.000Z
Dates
- Event date
- 2026-10-12T00:00:00.000Z
Reasoning: The resource estimate is large and JORC compliant, but it is 100% Inferred, stale (effective date April 2023), and the metal equivalent assumptions are not disclosed.
Positive factors
- Globally significant tonnage
- JORC compliant
Negative factors
- 100% Inferred category
- Stale estimate (effective date >2 years old)
- Metal equivalent assumptions not disclosed
Evidence · table
“2.2”
Context: 462
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
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
PEA-Supportingneutral
Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.
Why it applies: the release names the study this estimate supports
DFS-Supportingneutral
Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.
Why it applies: the release names the study this estimate supports
Stale Estimatenegative
Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
Why it applies: effective date is 3.5 years before this release
inferredEaraheedy Project · zincTonnes: 194000000Grade: 1.6Grade Unit: %Historical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Earaheedy Project
- Commodity
- zinc
- Region
- australia_wa
- Reported Region
- Western Australia
- Ticker
- RTR
Resource scope
- Estimate type
- resource
- Reporting standards
- jorc
- Resource group id
- resource:f205935e6a16a12c5f72
Resource Data
- Category
- inferred
- Tonnes
- 194000000
- Grade
- 1.6
- Grade Unit
- %
- Cutoff Grade
- 1
- Cutoff Unit
- % Zn+Pb
Prior Estimate
- Resource Date
- 2023-04-19
Metal Equivalent
- Metal Eq. Grade
- 2.2
- Metal Eq. Unit
- % Zn+Pb
- Assumptions Disclosed
- No
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2023-04-19T00:00:00.000Z
Dates
- Event date
- 2026-10-12T00:00:00.000Z
Reasoning: The resource estimate is large and JORC compliant, but it is 100% Inferred, stale (effective date April 2023), and the metal equivalent assumptions are not disclosed.
Positive factors
- Globally significant tonnage
- JORC compliant
Negative factors
- 100% Inferred category
- Stale estimate (effective date >2 years old)
- Metal equivalent assumptions not disclosed
Evidence · table
“1.6”
Context: 194
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
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
PEA-Supportingneutral
Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.
Why it applies: the release names the study this estimate supports
DFS-Supportingneutral
Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.
Why it applies: the release names the study this estimate supports
Stale Estimatenegative
Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
Why it applies: effective date is 3.5 years before this release
inferredEaraheedy Project · leadTonnes: 194000000Grade: 0.5Grade Unit: %Historical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Earaheedy Project
- Commodity
- lead
- Region
- australia_wa
- Reported Region
- Western Australia
- Ticker
- RTR
Resource scope
- Estimate type
- resource
- Reporting standards
- jorc
- Resource group id
- resource:f205935e6a16a12c5f72
Resource Data
- Category
- inferred
- Tonnes
- 194000000
- Grade
- 0.5
- Grade Unit
- %
- Cutoff Grade
- 1
- Cutoff Unit
- % Zn+Pb
Prior Estimate
- Resource Date
- 2023-04-19
Metal Equivalent
- Metal Eq. Grade
- 2.2
- Metal Eq. Unit
- % Zn+Pb
- Assumptions Disclosed
- No
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2023-04-19T00:00:00.000Z
Dates
- Event date
- 2026-10-12T00:00:00.000Z
Reasoning: The resource estimate is large and JORC compliant, but it is 100% Inferred, stale (effective date April 2023), and the metal equivalent assumptions are not disclosed.
Positive factors
- Globally significant tonnage
- JORC compliant
Negative factors
- 100% Inferred category
- Stale estimate (effective date >2 years old)
- Metal equivalent assumptions not disclosed
Evidence · table
“0.5”
Context: 194
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
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
PEA-Supportingneutral
Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.
Why it applies: the release names the study this estimate supports
DFS-Supportingneutral
Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.
Why it applies: the release names the study this estimate supports
Stale Estimatenegative
Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
Why it applies: effective date is 3.5 years before this release
inferredEaraheedy Project · silverTonnes: 194000000Grade: 3.1Grade Unit: g/tHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Earaheedy Project
- Commodity
- silver
- Region
- australia_wa
- Reported Region
- Western Australia
- Ticker
- RTR
Resource scope
- Estimate type
- resource
- Reporting standards
- jorc
- Resource group id
- resource:f205935e6a16a12c5f72
Resource Data
- Category
- inferred
- Tonnes
- 194000000
- Grade
- 3.1
- Grade Unit
- g/t
- Cutoff Grade
- 1
- Cutoff Unit
- % Zn+Pb
Prior Estimate
- Resource Date
- 2023-04-19
Metal Equivalent
- Metal Eq. Grade
- 2.2
- Metal Eq. Unit
- % Zn+Pb
- Assumptions Disclosed
- No
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2023-04-19T00:00:00.000Z
Dates
- Event date
- 2026-10-12T00:00:00.000Z
Reasoning: The resource estimate is large and JORC compliant, but it is 100% Inferred, stale (effective date April 2023), and the metal equivalent assumptions are not disclosed.
Positive factors
- Globally significant tonnage
- JORC compliant
Negative factors
- 100% Inferred category
- Stale estimate (effective date >2 years old)
- Metal equivalent assumptions not disclosed
Evidence · table
“3.1”
Context: 194
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
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
PEA-Supportingneutral
Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.
Why it applies: the release names the study this estimate supports
DFS-Supportingneutral
Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.
Why it applies: the release names the study this estimate supports
Stale Estimatenegative
Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
Why it applies: effective date is 3.5 years before this release
inferredEaraheedy Project · zincTonnes: 94000000Grade: 2.4Grade Unit: %Contained Metal: 2200000Contained Unit: tHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Earaheedy Project
- Commodity
- zinc
- Region
- australia_wa
- Reported Region
- Western Australia
- Ticker
- RTR
Resource scope
- Estimate type
- resource
- Reporting standards
- jorc
- Resource group id
- resource:3d2ae71914a3b7f15f7b
Resource Data
- Category
- inferred
- Tonnes
- 94000000
- Grade
- 2.4
- Grade Unit
- %
- Contained Metal
- 2200000
- Contained Unit
- t
- Cutoff Grade
- 2
- Cutoff Unit
- % Zn+Pb
Prior Estimate
- Resource Date
- 2023-04-19
Metal Equivalent
- Metal Eq. Grade
- 3.1
- Metal Eq. Unit
- % Zn+Pb
- Assumptions Disclosed
- No
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2023-04-19T00:00:00.000Z
Dates
- Event date
- 2026-10-12T00:00:00.000Z
Reasoning: The resource estimate is large and JORC compliant, but it is 100% Inferred, stale (effective date April 2023), and the metal equivalent assumptions are not disclosed.
Positive factors
- Globally significant tonnage
- JORC compliant
Negative factors
- 100% Inferred category
- Stale estimate (effective date >2 years old)
- Metal equivalent assumptions not disclosed
Evidence · table
“2.4”
Context: 94
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
JORC Compliantpositive
Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.
Why it applies: reporting_standards includes jorc
PEA-Supportingneutral
Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.
Why it applies: the release names the study this estimate supports
DFS-Supportingneutral
Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.
Why it applies: the release names the study this estimate supports
Stale Estimatenegative
Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
Why it applies: effective date is 3.5 years before this release
inferredEaraheedy Project · leadTonnes: 94000000Grade: 0.7Grade Unit: %Contained Metal: 700000Contained Unit: tHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Earaheedy Project
- Commodity
- lead
- Region
- australia_wa
- Reported Region
- Western Australia
- Ticker
- RTR
Resource scope
- Estimate type
- resource
- Reporting standards
- jorc
- Resource group id
- resource:3d2ae71914a3b7f15f7b
Resource Data
- Category
- inferred
- Tonnes
- 94000000
- Grade
- 0.7
- Grade Unit
- %
- Contained Metal
- 700000
- Contained Unit
- t
- Cutoff Grade
- 2
- Cutoff Unit
- % Zn+Pb
Prior Estimate
- Resource Date
- 2023-04-19
Metal Equivalent
- Metal Eq. Grade
- 3.1
- Metal Eq. Unit
- % Zn+Pb
- Assumptions Disclosed
- No
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2023-04-19T00:00:00.000Z
Dates
- Event date
- 2026-10-12T00:00:00.000Z
Reasoning: The resource estimate is large and JORC compliant, but it is 100% Inferred, stale (effective date April 2023), and the metal equivalent assumptions are not disclosed.
Positive factors
- Globally significant tonnage
- JORC compliant
Negative factors
- 100% Inferred category
- Stale estimate (effective date >2 years old)
- Metal equivalent assumptions not disclosed
Evidence · table
“0.7”
Context: 94
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
JORC Compliantpositive
Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.
Why it applies: reporting_standards includes jorc
PEA-Supportingneutral
Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.
Why it applies: the release names the study this estimate supports
DFS-Supportingneutral
Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.
Why it applies: the release names the study this estimate supports
Stale Estimatenegative
Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
Why it applies: effective date is 3.5 years before this release
inferredEaraheedy Project · silverTonnes: 94000000Grade: 4.2Grade Unit: g/tContained Metal: 12600000Contained Unit: ozHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Earaheedy Project
- Commodity
- silver
- Region
- australia_wa
- Reported Region
- Western Australia
- Ticker
- RTR
Resource scope
- Estimate type
- resource
- Reporting standards
- jorc
- Resource group id
- resource:3d2ae71914a3b7f15f7b
Resource Data
- Category
- inferred
- Tonnes
- 94000000
- Grade
- 4.2
- Grade Unit
- g/t
- Contained Metal
- 12600000
- Contained Unit
- oz
- Cutoff Grade
- 2
- Cutoff Unit
- % Zn+Pb
Prior Estimate
- Resource Date
- 2023-04-19
Metal Equivalent
- Metal Eq. Grade
- 3.1
- Metal Eq. Unit
- % Zn+Pb
- Assumptions Disclosed
- No
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2023-04-19T00:00:00.000Z
Dates
- Event date
- 2026-10-12T00:00:00.000Z
Reasoning: The resource estimate is large and JORC compliant, but it is 100% Inferred, stale (effective date April 2023), and the metal equivalent assumptions are not disclosed.
Positive factors
- Globally significant tonnage
- JORC compliant
Negative factors
- 100% Inferred category
- Stale estimate (effective date >2 years old)
- Metal equivalent assumptions not disclosed
Evidence · table
“4.2”
Context: 94
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
JORC Compliantpositive
Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.
Why it applies: reporting_standards includes jorc
PEA-Supportingneutral
Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.
Why it applies: the release names the study this estimate supports
DFS-Supportingneutral
Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.
Why it applies: the release names the study this estimate supports
Stale Estimatenegative
Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
Why it applies: effective date is 3.5 years before this release
inferredEaraheedy Project · zincTonnes: 65000000Grade: 2.6Grade Unit: %Historical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Earaheedy Project
- Commodity
- zinc
- Region
- australia_wa
- Reported Region
- Western Australia
- Ticker
- RTR
Resource scope
- Estimate type
- resource
- Reporting standards
- jorc
- Resource group id
- resource:60559a6f18d8fff458d3
Resource Data
- Category
- inferred
- Tonnes
- 65000000
- Grade
- 2.6
- Grade Unit
- %
- Cutoff Grade
- 2.5
- Cutoff Unit
- % Zn+Pb
Prior Estimate
- Resource Date
- 2023-04-19
Metal Equivalent
- Metal Eq. Grade
- 3.4
- Metal Eq. Unit
- % Zn+Pb
- Assumptions Disclosed
- No
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2023-04-19T00:00:00.000Z
Dates
- Event date
- 2026-10-12T00:00:00.000Z
Reasoning: The resource estimate is large and JORC compliant, but it is 100% Inferred, stale (effective date April 2023), and the metal equivalent assumptions are not disclosed.
Positive factors
- Globally significant tonnage
- JORC compliant
Negative factors
- 100% Inferred category
- Stale estimate (effective date >2 years old)
- Metal equivalent assumptions not disclosed
Evidence · table
“2.6”
Context: 65
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
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
PEA-Supportingneutral
Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.
Why it applies: the release names the study this estimate supports
DFS-Supportingneutral
Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.
Why it applies: the release names the study this estimate supports
Stale Estimatenegative
Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
Why it applies: effective date is 3.5 years before this release
inferredEaraheedy Project · leadTonnes: 65000000Grade: 0.8Grade Unit: %Historical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Earaheedy Project
- Commodity
- lead
- Region
- australia_wa
- Reported Region
- Western Australia
- Ticker
- RTR
Resource scope
- Estimate type
- resource
- Reporting standards
- jorc
- Resource group id
- resource:60559a6f18d8fff458d3
Resource Data
- Category
- inferred
- Tonnes
- 65000000
- Grade
- 0.8
- Grade Unit
- %
- Cutoff Grade
- 2.5
- Cutoff Unit
- % Zn+Pb
Prior Estimate
- Resource Date
- 2023-04-19
Metal Equivalent
- Metal Eq. Grade
- 3.4
- Metal Eq. Unit
- % Zn+Pb
- Assumptions Disclosed
- No
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2023-04-19T00:00:00.000Z
Dates
- Event date
- 2026-10-12T00:00:00.000Z
Reasoning: The resource estimate is large and JORC compliant, but it is 100% Inferred, stale (effective date April 2023), and the metal equivalent assumptions are not disclosed.
Positive factors
- Globally significant tonnage
- JORC compliant
Negative factors
- 100% Inferred category
- Stale estimate (effective date >2 years old)
- Metal equivalent assumptions not disclosed
Evidence · table
“0.8”
Context: 65
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
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
PEA-Supportingneutral
Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.
Why it applies: the release names the study this estimate supports
DFS-Supportingneutral
Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.
Why it applies: the release names the study this estimate supports
Stale Estimatenegative
Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
Why it applies: effective date is 3.5 years before this release
inferredEaraheedy Project · silverTonnes: 65000000Grade: 4.5Grade Unit: g/tHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Earaheedy Project
- Commodity
- silver
- Region
- australia_wa
- Reported Region
- Western Australia
- Ticker
- RTR
Resource scope
- Estimate type
- resource
- Reporting standards
- jorc
- Resource group id
- resource:60559a6f18d8fff458d3
Resource Data
- Category
- inferred
- Tonnes
- 65000000
- Grade
- 4.5
- Grade Unit
- g/t
- Cutoff Grade
- 2.5
- Cutoff Unit
- % Zn+Pb
Prior Estimate
- Resource Date
- 2023-04-19
Metal Equivalent
- Metal Eq. Grade
- 3.4
- Metal Eq. Unit
- % Zn+Pb
- Assumptions Disclosed
- No
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2023-04-19T00:00:00.000Z
Dates
- Event date
- 2026-10-12T00:00:00.000Z
Reasoning: The resource estimate is large and JORC compliant, but it is 100% Inferred, stale (effective date April 2023), and the metal equivalent assumptions are not disclosed.
Positive factors
- Globally significant tonnage
- JORC compliant
Negative factors
- 100% Inferred category
- Stale estimate (effective date >2 years old)
- Metal equivalent assumptions not disclosed
Evidence · table
“4.5”
Context: 65
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
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
PEA-Supportingneutral
Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.
Why it applies: the release names the study this estimate supports
DFS-Supportingneutral
Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.
Why it applies: the release names the study this estimate supports
Stale Estimatenegative
Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
Why it applies: effective date is 3.5 years before this release
inferredEaraheedy Project · zincTonnes: 41000000Grade: 3Grade Unit: %Historical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Earaheedy Project
- Commodity
- zinc
- Region
- australia_wa
- Reported Region
- Western Australia
- Ticker
- RTR
Resource scope
- Estimate type
- resource
- Reporting standards
- jorc
- Resource group id
- resource:c04b52b8a20ed5623ed4
Resource Data
- Category
- inferred
- Tonnes
- 41000000
- Grade
- 3
- Grade Unit
- %
- Cutoff Grade
- 3
- Cutoff Unit
- % Zn+Pb
Prior Estimate
- Resource Date
- 2023-04-19
Metal Equivalent
- Metal Eq. Grade
- 3.8
- Metal Eq. Unit
- % Zn+Pb
- Assumptions Disclosed
- No
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2023-04-19T00:00:00.000Z
Dates
- Event date
- 2026-10-12T00:00:00.000Z
Reasoning: The resource estimate is large and JORC compliant, but it is 100% Inferred, stale (effective date April 2023), and the metal equivalent assumptions are not disclosed.
Positive factors
- Globally significant tonnage
- JORC compliant
Negative factors
- 100% Inferred category
- Stale estimate (effective date >2 years old)
- Metal equivalent assumptions not disclosed
Evidence · table
“3.0”
Context: 41
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
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
PEA-Supportingneutral
Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.
Why it applies: the release names the study this estimate supports
DFS-Supportingneutral
Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.
Why it applies: the release names the study this estimate supports
Stale Estimatenegative
Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
Why it applies: effective date is 3.5 years before this release
inferredEaraheedy Project · leadTonnes: 41000000Grade: 0.9Grade Unit: %Historical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Earaheedy Project
- Commodity
- lead
- Region
- australia_wa
- Reported Region
- Western Australia
- Ticker
- RTR
Resource scope
- Estimate type
- resource
- Reporting standards
- jorc
- Resource group id
- resource:c04b52b8a20ed5623ed4
Resource Data
- Category
- inferred
- Tonnes
- 41000000
- Grade
- 0.9
- Grade Unit
- %
- Cutoff Grade
- 3
- Cutoff Unit
- % Zn+Pb
Prior Estimate
- Resource Date
- 2023-04-19
Metal Equivalent
- Metal Eq. Grade
- 3.8
- Metal Eq. Unit
- % Zn+Pb
- Assumptions Disclosed
- No
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2023-04-19T00:00:00.000Z
Dates
- Event date
- 2026-10-12T00:00:00.000Z
Reasoning: The resource estimate is large and JORC compliant, but it is 100% Inferred, stale (effective date April 2023), and the metal equivalent assumptions are not disclosed.
Positive factors
- Globally significant tonnage
- JORC compliant
Negative factors
- 100% Inferred category
- Stale estimate (effective date >2 years old)
- Metal equivalent assumptions not disclosed
Evidence · table
“0.9”
Context: 41
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
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
PEA-Supportingneutral
Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.
Why it applies: the release names the study this estimate supports
DFS-Supportingneutral
Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.
Why it applies: the release names the study this estimate supports
Stale Estimatenegative
Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
Why it applies: effective date is 3.5 years before this release
inferredEaraheedy Project · silverTonnes: 41000000Grade: 4.9Grade Unit: g/tHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Earaheedy Project
- Commodity
- silver
- Region
- australia_wa
- Reported Region
- Western Australia
- Ticker
- RTR
Resource scope
- Estimate type
- resource
- Reporting standards
- jorc
- Resource group id
- resource:c04b52b8a20ed5623ed4
Resource Data
- Category
- inferred
- Tonnes
- 41000000
- Grade
- 4.9
- Grade Unit
- g/t
- Cutoff Grade
- 3
- Cutoff Unit
- % Zn+Pb
Prior Estimate
- Resource Date
- 2023-04-19
Metal Equivalent
- Metal Eq. Grade
- 3.8
- Metal Eq. Unit
- % Zn+Pb
- Assumptions Disclosed
- No
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2023-04-19T00:00:00.000Z
Dates
- Event date
- 2026-10-12T00:00:00.000Z
Reasoning: The resource estimate is large and JORC compliant, but it is 100% Inferred, stale (effective date April 2023), and the metal equivalent assumptions are not disclosed.
Positive factors
- Globally significant tonnage
- JORC compliant
Negative factors
- 100% Inferred category
- Stale estimate (effective date >2 years old)
- Metal equivalent assumptions not disclosed
Evidence · table
“4.9”
Context: 41
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
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
PEA-Supportingneutral
Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.
Why it applies: the release names the study this estimate supports
DFS-Supportingneutral
Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.
Why it applies: the release names the study this estimate supports
Stale Estimatenegative
Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
Why it applies: effective date is 3.5 years before this release
inferredEaraheedy Project · zincTonnes: 12000000Grade: 3.6Grade Unit: %Historical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Earaheedy Project
- Commodity
- zinc
- Region
- australia_wa
- Reported Region
- Western Australia
- Ticker
- RTR
Resource scope
- Estimate type
- resource
- Reporting standards
- jorc
- Resource group id
- resource:cde347db2a50a4483f7d
Resource Data
- Category
- inferred
- Tonnes
- 12000000
- Grade
- 3.6
- Grade Unit
- %
- Cutoff Grade
- 4
- Cutoff Unit
- % Zn+Pb
Prior Estimate
- Resource Date
- 2023-04-19
Metal Equivalent
- Metal Eq. Grade
- 4.8
- Metal Eq. Unit
- % Zn+Pb
- Assumptions Disclosed
- No
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2023-04-19T00:00:00.000Z
Dates
- Event date
- 2026-10-12T00:00:00.000Z
Reasoning: The resource estimate is large and JORC compliant, but it is 100% Inferred, stale (effective date April 2023), and the metal equivalent assumptions are not disclosed.
Positive factors
- Globally significant tonnage
- JORC compliant
Negative factors
- 100% Inferred category
- Stale estimate (effective date >2 years old)
- Metal equivalent assumptions not disclosed
Evidence · table
“3.6”
Context: 12
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
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
PEA-Supportingneutral
Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.
Why it applies: the release names the study this estimate supports
DFS-Supportingneutral
Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.
Why it applies: the release names the study this estimate supports
Stale Estimatenegative
Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
Why it applies: effective date is 3.5 years before this release
inferredEaraheedy Project · leadTonnes: 12000000Grade: 1.2Grade Unit: %Historical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Earaheedy Project
- Commodity
- lead
- Region
- australia_wa
- Reported Region
- Western Australia
- Ticker
- RTR
Resource scope
- Estimate type
- resource
- Reporting standards
- jorc
- Resource group id
- resource:cde347db2a50a4483f7d
Resource Data
- Category
- inferred
- Tonnes
- 12000000
- Grade
- 1.2
- Grade Unit
- %
- Cutoff Grade
- 4
- Cutoff Unit
- % Zn+Pb
Prior Estimate
- Resource Date
- 2023-04-19
Metal Equivalent
- Metal Eq. Grade
- 4.8
- Metal Eq. Unit
- % Zn+Pb
- Assumptions Disclosed
- No
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2023-04-19T00:00:00.000Z
Dates
- Event date
- 2026-10-12T00:00:00.000Z
Reasoning: The resource estimate is large and JORC compliant, but it is 100% Inferred, stale (effective date April 2023), and the metal equivalent assumptions are not disclosed.
Positive factors
- Globally significant tonnage
- JORC compliant
Negative factors
- 100% Inferred category
- Stale estimate (effective date >2 years old)
- Metal equivalent assumptions not disclosed
Evidence · table
“1.2”
Context: 12
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
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
PEA-Supportingneutral
Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.
Why it applies: the release names the study this estimate supports
DFS-Supportingneutral
Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.
Why it applies: the release names the study this estimate supports
Stale Estimatenegative
Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
Why it applies: effective date is 3.5 years before this release
inferredEaraheedy Project · silverTonnes: 12000000Grade: 5.7Grade Unit: g/tHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Earaheedy Project
- Commodity
- silver
- Region
- australia_wa
- Reported Region
- Western Australia
- Ticker
- RTR
Resource scope
- Estimate type
- resource
- Reporting standards
- jorc
- Resource group id
- resource:cde347db2a50a4483f7d
Resource Data
- Category
- inferred
- Tonnes
- 12000000
- Grade
- 5.7
- Grade Unit
- g/t
- Cutoff Grade
- 4
- Cutoff Unit
- % Zn+Pb
Prior Estimate
- Resource Date
- 2023-04-19
Metal Equivalent
- Metal Eq. Grade
- 4.8
- Metal Eq. Unit
- % Zn+Pb
- Assumptions Disclosed
- No
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2023-04-19T00:00:00.000Z
Dates
- Event date
- 2026-10-12T00:00:00.000Z
Reasoning: The resource estimate is large and JORC compliant, but it is 100% Inferred, stale (effective date April 2023), and the metal equivalent assumptions are not disclosed.
Positive factors
- Globally significant tonnage
- JORC compliant
Negative factors
- 100% Inferred category
- Stale estimate (effective date >2 years old)
- Metal equivalent assumptions not disclosed
Evidence · table
“5.7”
Context: 12
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
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
PEA-Supportingneutral
Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.
Why it applies: the release names the study this estimate supports
DFS-Supportingneutral
Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.
Why it applies: the release names the study this estimate supports
Stale Estimatenegative
Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
Why it applies: effective date is 3.5 years before this release
Metallurgical Results (1)
pilot plantEaraheedy Project · zincRecovery: 79 %Historical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Earaheedy Project
- Commodity
- zinc
- Region
- australia_wa
- Reported Region
- Western Australia
- Ticker
- RTR
Test Work
- Program Status
- optimization
- Test Type
- pilot plant
- Processing Route
- flotation
- Sample
- Chinook deposit, with HydroFloat™ Technology
- Grind P80
- 200 µm
Recovery
- Recovery
- 79 %
- Recovery Basis
- actual_test
- Conc. Grade
- 61
- Conc. Grade Unit
- % Zn+Pb
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2024-11-28T00:00:00.000Z
Dates
- Event date
- 2026-10-12T00:00:00.000Z
Reasoning: The metallurgical testwork shows high zinc recovery into a high-grade bulk concentrate using a coarse grind and innovative HydroFloat™ technology, suggesting a simplified and cost-efficient flowsheet. However, these results are a re-statement of prior news, and further work is needed for separate concentrates.
Positive factors
- High zinc recovery (79%)
- High-grade bulk concentrate (61% Zn+Pb)
- Pilot scale testwork
- Coarse grind for energy savings
- Innovative HydroFloat™ technology for gangue rejection
- Simplified and cost-efficient flowsheet
Negative factors
- Metallurgical results are a re-statement of prior news
- Further testwork needed for separate concentrates
Evidence · text
“recoveries of 79% Zn were achieved into a high-grade, 61% Zn+Pb bulk concentrate suitable for the Imperial Smelting Process (ISP), using a coarse primary grind (P80 > 200μm)”
Tags used in scoring
Mill Routeneutral
Processing via mill or concentrator (CIL, CIP, tank leach, flotation).
Why it applies: processing_route matches the flotation signal
Pilot Scale Completepositive
Pilot or demonstration plant testing completed under continuous operation.
Why it applies: test_type names pilot-scale work
Byproduct Commodityneutral
The tested commodity is a byproduct rather than the primary economic driver.
Why it applies: the release describes a byproduct credit
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.