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
- Extracted
- 2026-09-22 01:05:05 UTC
Analysis by Minestarters Atlas
Atlas analysis published:
Minestarters Atlas analysis
Summary
Cannindah Resources reported successful coarse particle flotation testwork at Mt Cannindah, achieving 94% copper and 92% silver recovery at a 450µm grind. These results, alongside conventional flotation confirming saleable concentrate, will inform an upcoming mineral resource update.
Reasoning: The results demonstrate high copper and silver recoveries using a coarse particle flotation method, which offers significant potential for reducing OPEX and CAPEX via lower energy and smaller plant requirements.
Positive factors
- High copper recovery (94%) at a significantly coarser grind size (450µm)
- Coarse flotation potentially reduces energy requirements and plant footprint
- Conventional flotation confirmed saleable concentrate with low penalty elements
- High mass rejection (82%) improves throughput potential
Negative factors
- Gold recovery results remain variable and difficult to represent
Facts used in scoring: 7
Classification and evidence
High Recoverypositive
Recovery at or above the exceptional band for the commodity and processing route.
Why it applies: 94% copper recovery achieved in coarse flotation test.
Evidence · text
“returned 94% copper recovery”
Mill Routeneutral
Processing via mill or concentrator (CIL, CIP, tank leach, flotation).
Why it applies: Testing involves flotation and grinding circuits.
Evidence · text
“coarse particle flotation”
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: 7. Some facts used in scoring do not have a stored record.
Metallurgical Results (7)
flotationMt Cannindah · copperRecovery: 94 %View all detailsHide details
Identity
- Project
- Mt Cannindah
- Commodity
- copper
- Ticker
- CAE
Test Work
- Program Status
- detailed
- Test Type
- flotation
- Processing Route
- NovaCell coarse particle flotation
- Sample
- NovaCell coarse particle flotation composite (assembled 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 450µm is exceptional for coarse flotation, suggesting significant energy savings.
Positive factors
- High recovery at coarse grind
Evidence · text
“returned 94% copper recovery with an 18% mass pull”
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%)
flotationMt Cannindah · silverRecovery: 92 %View all detailsHide details
Identity
- Project
- Mt Cannindah
- Commodity
- silver
- Ticker
- CAE
Test Work
- Program Status
- detailed
- Test Type
- flotation
- Processing Route
- NovaCell coarse particle flotation
- Sample
- NovaCell coarse particle flotation composite (assembled 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: 92% silver recovery supports the viability of the coarse flotation route.
Positive factors
- Strong silver recovery
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%)
flotationMt Cannindah · goldRecovery: 68 %View all detailsHide details
Identity
- Project
- Mt Cannindah
- Commodity
- gold
- Ticker
- CAE
Test Work
- Program Status
- detailed
- Test Type
- flotation
- Processing Route
- NovaCell coarse particle flotation
- Sample
- NovaCell coarse particle flotation composite (assembled 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 due to spotty distribution in the sample.
Negative factors
- Variable gold recovery
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
- Program Status
- detailed
- Test Type
- flotation
- Processing Route
- conventional rougher 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 potential using standard flowsheet.
Positive factors
- High recovery in conventional circuit
Evidence · text
“optimised conventional rougher test at P80 250µm returned 97% copper”
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
- Program Status
- detailed
- Test Type
- flotation
- Processing Route
- conventional rougher 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: High silver recovery in conventional test.
Positive factors
- High silver recovery
Evidence · text
“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
- Program Status
- detailed
- Test Type
- flotation
- Processing Route
- conventional bench flotation (two cleaner stages)
- Sample
- Conventional bench flotation - 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 25% Cu 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
- Program Status
- detailed
- Test Type
- flotation
- Processing Route
- conventional bench flotation (one cleaner stage)
- Sample
- Conventional bench flotation - 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 an 18.3% Cu 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.