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 orestocks on
- Company
- Collective Mining Ltd.
- Ticker
- CNL
- Exchange
- Unavailable
- Region
- Caldas, Colombia
- Primary commodity
- Gold
- Secondary commodities
- Silver, Copper, Tungsten
- Document categories
- Metallurgy
- Extracted
- 2026-08-25 11:29:23 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
Collective Mining reported robust metallurgical test results for the Apollo system, achieving high recoveries for gold, silver, copper, and tungsten using conventional methods. The company also announced an accelerated timeline for its maiden mineral resource estimate, now targeted for September 2026.
Reasoning: The metallurgical results show exceptionally high recoveries (95% Au, 92% Ag, 85% Cu) using standard methods, significantly de-risking the project's processing economics.
Positive factors
- High recovery rates across multiple commodities
- Strong gravity response for gold
- High-purity tungsten concentrate potential
- Use of conventional processing methods
- QA/QC disclosed with accredited lab
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% and 96% exceeds the exceptional band.
Evidence · text
“95% Gold”
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 laboratory, ISO/IEC 17025 accreditation, and QP sign-off.
Evidence · text
“conforms to the requirements of ISO/IEC 17025”
Mill Routeneutral
Processing via mill or concentrator (CIL, CIP, tank leach, flotation).
Why it applies: Uses conventional gravity, flotation, and cyanidation.
Evidence · text
“conventional gravity concentration, flotation and cyanidation methods”
Extracted facts
Stored fact records: 5. Some facts used in scoring do not have a stored record.
Metallurgical Results (5)
locked-cyclegoldRecovery: 95 %Head Grade: 1.4Head Grade Unit: g/tView all detailsHide details
Identity
- Commodity
- gold
- Ticker
- CNL
Test Work
- Program Status
- detailed
- Test Type
- locked-cycle
- Processing Route
- gravity, flotation and cyanidation
- Sample
- Master Composite (top 1,000m of Apollo system)
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 indicator of processability.
Positive factors
- 95% recovery is exceptional for gold
Evidence · table
“95 %”
Context: 1.4
locked-cyclesilverRecovery: 92 %Head Grade: 20Head Grade Unit: g/tView all detailsHide details
Identity
- Commodity
- silver
- Ticker
- CNL
Test Work
- Program Status
- detailed
- Test Type
- locked-cycle
- Processing Route
- gravity, flotation and cyanidation
- Sample
- Master Composite (top 1,000m of Apollo system)
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 the polymetallic value proposition.
Positive factors
- 92% recovery is strong
Evidence · table
“92 %”
Context: 20
locked-cyclecopperRecovery: 85 %Head Grade: 0.08Head Grade Unit: %View all detailsHide details
Identity
- Commodity
- copper
- Ticker
- CNL
Test Work
- Program Status
- detailed
- Test Type
- locked-cycle
- Processing Route
- gravity, flotation and cyanidation
- Sample
- Master Composite (top 1,000m of Apollo system)
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 reported for the master composite.
Positive factors
- 85% recovery is strong for copper
Evidence · table
“85 %”
Context: 0.08
flotationtungstenRecovery: 74 %View all detailsHide details
Identity
- Commodity
- tungsten
- Ticker
- CNL
Test Work
- Program Status
- detailed
- Test Type
- flotation
- Processing Route
- sulphide flotation stage, followed by gravity concentration
- Sample
- Apollo's high-grade tungsten zone
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 and high concentrate purity (95% scheelite) demonstrated.
Positive factors
- 74% recovery is strong for tungsten
- Achieved high-purity concentrate
Evidence · text
“tungsten recovery rates of up to 74%”
gravity, flotation, and leachinggoldRecovery: 96 %View all detailsHide details
Identity
- Commodity
- gold
- Ticker
- CNL
Test Work
- Program Status
- preliminary
- Test Type
- gravity, flotation, and leaching
- Processing Route
- gravity, flotation, and leaching
- Sample
- High-grade Ramp Zone at depth
Recovery
- Recovery
- 96 %
- Recovery Basis
- actual_test
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-08-25T00:00:00.000Z
Reasoning: Preliminary results from the high-grade Ramp Zone are very encouraging.
Positive factors
- 96% recovery is exceptional
Evidence · text
“recovered up to 96% of the gold”
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.