New metallurgical results add to Cannindah’s Copper lustre
Original announcement by stockhead on
- Company
- Cannindah Resources
- Ticker
- CAE
- Exchange
- Unavailable
- Region
- Unavailable
- Primary commodity
- Copper
- Secondary commodities
- Silver, Gold
- Document categories
- Metallurgy, Resource update
- Extracted
- 2026-09-22 01:03:24 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
Cannindah Resources has reported successful coarse particle flotation results at Mt Cannindah, achieving 94% copper and 92% silver recovery at a P80 of 450µm. These results suggest potential for lower energy costs and higher throughput, which will be incorporated into an upcoming Mineral Resource Estimate update.
Reasoning: The announcement reports successful coarse particle flotation results that could significantly improve project economics via lower energy and higher throughput, while also providing a baseline resource for an upcoming update.
Positive factors
- High copper recovery (94%) achieved at a significantly coarser grind (P80 450µm)
- Coarse flotation allows for reduced energy requirements and potentially higher throughput
- Conventional flotation confirmed saleable concentrate with low penalty elements
- Strong mass rejection (82%) in coarse flotation
Negative factors
- Gold recovery is variable and difficult to assay due to spotty distribution
Facts used in scoring: 10
Classification and evidence
Mill Routeneutral
Processing via mill or concentrator (CIL, CIP, tank leach, flotation).
Why it applies: The results involve flotation (coarse and conventional) which is a mill-based processing route.
Evidence · text
“coarse flotation test returned 94% copper recovery”
High Recoverypositive
Recovery at or above the exceptional band for the commodity and processing route.
Why it applies: Copper recovery of 94% at a coarse grind is exceptional for this stage.
Evidence · text
“recovered 94% of copper and 92% of silver using NovaCell coarse particle flotation”
Resource Updateneutral
Revised estimate for an existing resource — compare to prior to assess progress.
Why it applies: The document explicitly mentions that new recovery assumptions will feed into a planned resource update.
Evidence · text
“New recovery assumptions will feed a resource update planned for the end of September”
Gravity Routeneutral
Gravity separation forms a material part of the flowsheet.
Why it applies: the document describes a gravity route ("gravity")
Multi-Domain Testedpositive
Variability across ore domains (oxide, transition, fresh) has been addressed.
Why it applies: 3 distinct composites were tested
Extracted facts
Stored fact records: 10. Some facts used in scoring do not have a stored record.
Resource Estimates (3)
Fact 1Cannindah Breccia · copperTonnes: 14500000Grade: 0.72Grade Unit: %View all detailsHide details
Identity
- Project
- Cannindah Breccia
- Commodity
- copper
- Ticker
- CAE
Resource scope
- Estimate type
- resource
- Resource group id
- resource:1749397488ccdcd52987
Resource Data
- Tonnes
- 14500000
- Grade
- 0.72
- Grade Unit
- %
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-09-22T00:00:00.000Z
Reasoning: Existing resource baseline provided for context.
Evidence · text
“The standing Cannindah Breccia resource is 14.5Mt at 0.72% Cu”
Tags used in scoring
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
No Contained Metalnegative
Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.
Why it applies: contained_metal was not reported
Fact 2Cannindah Breccia · goldTonnes: 14500000Grade: 0.42Grade Unit: g/tView all detailsHide details
Identity
- Project
- Cannindah Breccia
- Commodity
- gold
- Ticker
- CAE
Resource scope
- Estimate type
- resource
- Resource group id
- resource:1749397488ccdcd52987
Resource Data
- Tonnes
- 14500000
- Grade
- 0.42
- Grade Unit
- g/t
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-09-22T00:00:00.000Z
Reasoning: Existing resource baseline provided for context.
Evidence · text
“14.5Mt at 0.72% Cu, 0.42g/t Au and 13.7g/t Ag”
Tags used in scoring
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
No Contained Metalnegative
Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.
Why it applies: contained_metal was not reported
Fact 3Cannindah Breccia · silverTonnes: 14500000Grade: 13.7Grade Unit: g/tView all detailsHide details
Identity
- Project
- Cannindah Breccia
- Commodity
- silver
- Ticker
- CAE
Resource scope
- Estimate type
- resource
- Resource group id
- resource:1749397488ccdcd52987
Resource Data
- Tonnes
- 14500000
- Grade
- 13.7
- Grade Unit
- g/t
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-09-22T00:00:00.000Z
Reasoning: Existing resource baseline provided for context.
Evidence · text
“14.5Mt at 0.72% Cu, 0.42g/t Au and 13.7g/t Ag”
Tags used in scoring
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
No Contained Metalnegative
Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.
Why it applies: contained_metal was not reported
Metallurgical Results (7)
coarse particle flotationMt Cannindah · copperRecovery: 94 %View all detailsHide details
Identity
- Project
- Mt Cannindah
- Commodity
- copper
- Ticker
- CAE
Test Work
- Test Type
- coarse particle flotation
- Processing Route
- NovaCell coarse particle flotation
- Sample
- two composite samples (>150kg each) from six diamond holes
- Grind P80
- 450 µm
Recovery
- Recovery
- 94 %
- Recovery Basis
- actual_test
- Mass Pull
- 18 %
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-09-22T00:00:00.000Z
Reasoning: 94% recovery at 450um is a strong technical result for coarse flotation.
Positive factors
- High recovery at a very coarse grind size
Evidence · text
“recovered 94% of copper and 92% of silver using NovaCell coarse particle flotation at a target primary grind of about P80 450µm, while an 18% mass pull meant 82% of the processed material was rejected.”
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
High Recoverypositive
Recovery at or above the exceptional band for the commodity and processing route.
Why it applies: 94% is at or above the exceptional band (92%)
coarse particle flotationMt Cannindah · silverRecovery: 92 %View all detailsHide details
Identity
- Project
- Mt Cannindah
- Commodity
- silver
- Ticker
- CAE
Test Work
- Test Type
- coarse particle flotation
- Processing Route
- NovaCell coarse particle flotation
- Sample
- two composite samples (>150kg each) from six diamond holes
- Grind P80
- 450 µm
Recovery
- Recovery
- 92 %
- Recovery Basis
- actual_test
- Mass Pull
- 18 %
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-09-22T00:00:00.000Z
Reasoning: High silver recovery supports the coarse flotation pathway.
Positive factors
- Strong silver recovery alongside copper
Evidence · text
“recovered 94% of copper and 92% of silver using NovaCell coarse particle flotation”
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
High Recoverypositive
Recovery at or above the exceptional band for the commodity and processing route.
Why it applies: 92% is at or above the exceptional band (90%)
coarse particle flotationMt Cannindah · goldRecovery: 68 %View all detailsHide details
Identity
- Project
- Mt Cannindah
- Commodity
- gold
- Ticker
- CAE
Test Work
- Test Type
- coarse particle flotation
- Processing Route
- NovaCell coarse particle flotation
- Sample
- two composite samples (>150kg each) from six diamond holes
- Grind P80
- 450 µm
Recovery
- Recovery
- 68 %
- Recovery Basis
- actual_test
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-09-22T00:00:00.000Z
Reasoning: Gold recovery is lower and noted as variable/unreliable in the coarse test.
Negative factors
- Variable results due to spotty distribution
Evidence · text
“Gold recovery was 68%. Cannindah Resources (ASX:CAE) cautioned that gold results remain variable”
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
Low Recoverynegative
Recovery below the weak band for the commodity and processing route.
Why it applies: 68% is below the weak band (80%)
flotationMt Cannindah · copperRecovery: 97 %View all detailsHide details
Identity
- Project
- Mt Cannindah
- Commodity
- copper
- Ticker
- CAE
Test Work
- Test Type
- flotation
- Processing Route
- conventional flotation
- Sample
- optimised conventional rougher test
- Grind P80
- 250 µm
Recovery
- Recovery
- 97 %
- Recovery Basis
- actual_test
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-09-22T00:00:00.000Z
Reasoning: Confirms high recovery in standard flowsheet.
Positive factors
- High recovery in conventional circuit
Evidence · text
“An optimised conventional rougher test at P80 250µm returned 97% copper and 94% silver recovery”
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
High Recoverypositive
Recovery at or above the exceptional band for the commodity and processing route.
Why it applies: 97% is at or above the exceptional band (92%)
flotationMt Cannindah · silverRecovery: 94 %View all detailsHide details
Identity
- Project
- Mt Cannindah
- Commodity
- silver
- Ticker
- CAE
Test Work
- Test Type
- flotation
- Processing Route
- conventional flotation
- Sample
- optimised conventional rougher test
- Grind P80
- 250 µm
Recovery
- Recovery
- 94 %
- Recovery Basis
- actual_test
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-09-22T00:00:00.000Z
Reasoning: Confirms high recovery in standard flowsheet.
Positive factors
- High recovery in conventional circuit
Evidence · text
“An optimised conventional rougher test at P80 250µm returned 97% copper and 94% silver recovery”
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
High Recoverypositive
Recovery at or above the exceptional band for the commodity and processing route.
Why it applies: 94% is at or above the exceptional band (90%)
flotationMt Cannindah · copperRecovery: 83.7 %View all detailsHide details
Identity
- Project
- Mt Cannindah
- Commodity
- copper
- Ticker
- CAE
Test Work
- Test Type
- flotation
- Processing Route
- conventional flotation
- Sample
- two cleaner stages
Recovery
- Recovery
- 83.7 %
- Recovery Basis
- actual_test
- Conc. Grade
- 25
- Conc. Grade Unit
- %
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-09-22T00:00:00.000Z
Reasoning: Confirms ability to produce a saleable concentrate.
Positive factors
- Produces saleable concentrate
Evidence · text
“two cleaner stages produced 25.0% Cu at 83.7% copper recovery”
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
flotationMt Cannindah · copperRecovery: 89.8 %View all detailsHide details
Identity
- Project
- Mt Cannindah
- Commodity
- copper
- Ticker
- CAE
Test Work
- Test Type
- flotation
- Processing Route
- conventional flotation
- Sample
- one cleaner stage
Recovery
- Recovery
- 89.8 %
- Recovery Basis
- actual_test
- Conc. Grade
- 18.3
- Conc. Grade Unit
- %
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-09-22T00:00:00.000Z
Reasoning: Confirms ability to produce a saleable concentrate.
Positive factors
- Produces saleable concentrate
Evidence · text
“one cleaner stage produced 18.3% Cu at 89.8% recovery”
Tags used in scoring
Mill Routeneutral
Processing via mill or concentrator (CIL, CIP, tank leach, flotation).
Why it applies: processing_route matches the flotation signal
How Atlas produces this analysis
Minestarters Atlas uses automated extraction to summarize mining announcements, identify reported measurements, and classify supporting evidence. Sentiment reflects the extracted narrative and classification rules; it is an interpretation, not a reported measurement. Evidence quotes and context are provided where available. Missing data, low-confidence results, and review flags indicate limitations. Check the original publisher announcement before relying on an interpretation.