Collective Mining Reports Robust Metallurgical Recovery Rates at Apollo: 95% Gold, 92% Silver, 85% Copper and 70% Tungsten; Initial Mineral Resource Estimate Targeted for September 2026
Original announcement by tmx on
- Company
- Collective Mining Ltd.
- Ticker
- CNL
- Exchange
- TSX
- Region
- Caldas, Colombia
- Primary commodity
- Gold
- Secondary commodities
- Silver, Copper, Tungsten
- Document categories
- Metallurgy
- Extracted
- 2026-09-13 18:33:09 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
Collective Mining reported robust metallurgical test results for the Apollo system, featuring gold recoveries of 95% and silver recoveries of 92% on a master composite. The results also highlighted strong tungsten recovery (up to 74%) and significant gold amenability to gravity concentration, supporting the use of conventional processing methods.
Reasoning: The metallurgical results demonstrate high recoveries for all primary metals using standard, low-complexity processing routes, significantly de-risking the project's economic potential.
Positive factors
- High gold recovery (95%) on master composite
- Strong gravity response for gold (up to 66% recovery)
- High tungsten recovery (up to 74%) with high purity concentrate
- Conventional processing methods (gravity, flotation, cyanidation) are effective
- QA/QC disclosed with accredited lab (ALS) and QP sign-off
Facts used in scoring: 5
Classification and evidence
High Recoverypositive
Recovery at or above the exceptional band for the commodity and processing route.
Why it applies: Gold recovery of 95% on master composite and 96% on Ramp Zone material exceeds exceptional thresholds.
Evidence · text
“95% Gold, 92% Silver, 85% Copper and 70% Tungsten”
QA/QC Disclosedpositive · Story-specific tag
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: Release mentions ALS Canada Ltd. (accredited ISO/IEC 17025) and QP John Wells.
Evidence · text
“ALS Canada Ltd. operates under a documented quality management system and conforms to the requirements of ISO/IEC 17025.”
Mill Routeneutral
Processing via mill or concentrator (CIL, CIP, tank leach, flotation).
Why it applies: Testing used conventional gravity concentration, flotation and cyanidation methods.
Evidence · text
“using conventional gravity concentration, flotation and cyanidation methods”
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: 5. Some facts used in scoring do not have a stored record.
Metallurgical Results (5)
Fact 1Guayabales · goldRecovery: 95 %Head Grade: 1.4Head Grade Unit: g/tView all detailsHide details
Identity
- Project
- Guayabales
- Commodity
- gold
- Region
- colombia
- Reported Region
- Caldas, Colombia
- Ticker
- CNL
Test Work
- Sample
- Master Composite
Recovery
- Recovery
- 95 %
- Recovery Basis
- actual_test
- Head Grade
- 1.4
- Head Grade Unit
- g/t
Lab
- Laboratory
- ALS
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-08-25T00:00:00.000Z
Reasoning: 95% recovery on a master composite is a very strong result for gold.
Positive factors
- 95% recovery is exceptional for gold
Evidence · table
“95 %”
Context: 1.4 g/t
Tags used in scoring
High Recoverypositive
Recovery at or above the exceptional band for the commodity and processing route.
Why it applies: 95% is at or above the exceptional band (95%)
Fact 2Guayabales · silverRecovery: 92 %Head Grade: 20Head Grade Unit: g/tView all detailsHide details
Identity
- Project
- Guayabales
- Commodity
- silver
- Region
- colombia
- Reported Region
- Caldas, Colombia
- Ticker
- CNL
Test Work
- Sample
- Master Composite
Recovery
- Recovery
- 92 %
- Recovery Basis
- actual_test
- Head Grade
- 20
- Head Grade Unit
- g/t
Lab
- Laboratory
- ALS
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-08-25T00:00:00.000Z
Reasoning: High silver recovery supports polymetallic economics.
Positive factors
- 92% silver recovery is strong
Evidence · table
“92 %”
Context: 20 g/t
Tags used in scoring
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%)
Fact 3Guayabales · copperRecovery: 85 %Head Grade: 0.08Head Grade Unit: %View all detailsHide details
Identity
- Project
- Guayabales
- Commodity
- copper
- Region
- colombia
- Reported Region
- Caldas, Colombia
- Ticker
- CNL
Test Work
- Sample
- Master Composite
Recovery
- Recovery
- 85 %
- Recovery Basis
- actual_test
- Head Grade
- 0.08
- Head Grade Unit
- %
Lab
- Laboratory
- ALS
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-08-25T00:00:00.000Z
Reasoning: Solid copper recovery for a polymetallic system.
Positive factors
- 85% copper recovery is strong
Evidence · table
“85 %”
Context: 0.08 %
Fact 4Guayabales · tungstenRecovery: 74 %View all detailsHide details
Identity
- Project
- Guayabales
- Commodity
- tungsten
- Region
- colombia
- Reported Region
- Caldas, Colombia
- Ticker
- CNL
Test Work
- Sample
- tungsten zone (scheelite)
Recovery
- Recovery
- 74 %
- Recovery Basis
- actual_test
Lab
- Laboratory
- ALS
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-08-25T00:00:00.000Z
Reasoning: Strong tungsten recovery reported for the high-grade zone.
Positive factors
- 74% tungsten recovery is strong
Evidence · text
“tungsten recoveries of up to 74%”
Fact 5Guayabales · goldRecovery: 96 %View all detailsHide details
Identity
- Project
- Guayabales
- Commodity
- gold
- Region
- colombia
- Reported Region
- Caldas, Colombia
- Ticker
- CNL
Test Work
- Sample
- Ramp Zone high-grade material
Recovery
- Recovery
- 96 %
- Recovery Basis
- actual_test
Lab
- Laboratory
- ALS
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-08-25T00:00:00.000Z
Reasoning: Preliminary testing on the high-grade Ramp Zone shows very high gold recovery.
Positive factors
- 96% gold recovery is exceptional
Evidence · text
“recovered up to 96% of the gold”
Tags used in scoring
High Recoverypositive
Recovery at or above the exceptional band for the commodity and processing route.
Why it applies: 96% is at or above the exceptional band (95%)
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.