Nordic Resources clears first Kopsa met hurdle with gold recoveries up to 90pc
Original announcement by stockhead on
- Company
- Nordic Resources
- Ticker
- NNL
- Exchange
- Unavailable
- Region
- Finland
- Primary commodity
- Gold
- Secondary commodities
- Copper, Silver
- Document categories
- Metallurgy
- Extracted
- 2026-09-24 03:03:16 UTC
Analysis by Minestarters Atlas
Atlas analysis published:
Minestarters Atlas analysis
Summary
Nordic Resources has reported strong first-pass gold and copper recoveries at its Kopsa project in Finland using locked-cycle and variability testing. The results demonstrate that a single conventional flowsheet can achieve up to 90% gold and 91% copper recovery across both stockwork and tonalite mineralization types.
Reasoning: Strong first-pass metallurgical results (up to 90% Au) across two mineralization styles provide significant de-risking ahead of a resource update.
Positive factors
- High gold and copper recoveries achieved via a single flowsheet
- Gold is free-milling, reducing processing complexity
- Improved recoveries compared to historical testwork
- Strong silver recovery demonstrated for the first time
Facts used in scoring: 8
Classification and evidence
Free Millingpositive
Simple, clean ore amenable to standard processing without oxidation.
Why it applies: Gold proved consistently free milling in the tested material, without requiring sulphide pre-oxidation.
Evidence · text
“Gold proved consistently free milling in the tested material”
Mill Routeneutral
Processing via mill or concentrator (CIL, CIP, tank leach, flotation).
Why it applies: The proposed route involves grinding, flotation, and leaching.
Evidence · text
“The proposed route starts with grinding and copper flotation”
Multi-Domain Testedpositive
Variability across ore domains (oxide, transition, fresh) has been addressed.
Why it applies: 2 distinct composites were tested
Extracted facts
Stored fact records: 8. Some facts used in scoring do not have a stored record.
Metallurgical Results (8)
locked-cycleKopsa · goldRecovery: 90 %View all detailsHide details
Identity
- Project
- Kopsa
- Commodity
- gold
- Region
- finland
- Reported Region
- Finland
- Ticker
- NNL
Test Work
- Program Status
- preliminary
- Test Type
- locked-cycle
- Processing Route
- grinding and copper flotation, followed by flotation of remaining sulphides, finer grinding and leaching
- Sample
- stockwork master composite (locked-cycle)
Recovery
- Recovery
- 90 %
- Recovery Basis
- actual_test
Lab
- Laboratory
- Blue Coast Research
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-09-24T00:00:00.000Z
Reasoning: 90% gold recovery in locked-cycle testing is a strong result for the stockwork domain.
Positive factors
- High recovery for stockwork material
Evidence · text
“Locked-cycle tests... achieved overall recoveries of 90% gold”
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
locked-cycleKopsa · copperRecovery: 91 %View all detailsHide details
Identity
- Project
- Kopsa
- Commodity
- copper
- Region
- finland
- Reported Region
- Finland
- Ticker
- NNL
Test Work
- Program Status
- preliminary
- Test Type
- locked-cycle
- Processing Route
- grinding and copper flotation, followed by flotation of remaining sulphides, finer grinding and leaching
- Sample
- stockwork master composite (locked-cycle)
Recovery
- Recovery
- 91 %
- Recovery Basis
- actual_test
Lab
- Laboratory
- Blue Coast Research
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-09-24T00:00:00.000Z
Reasoning: 91% copper recovery is a strong result for the stockwork domain.
Positive factors
- High copper recovery in locked-cycle testing
Evidence · text
“achieved overall recoveries of... 91% 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
locked-cycleKopsa · silverRecovery: 76 %View all detailsHide details
Identity
- Project
- Kopsa
- Commodity
- silver
- Region
- finland
- Reported Region
- Finland
- Ticker
- NNL
Test Work
- Program Status
- preliminary
- Test Type
- locked-cycle
- Processing Route
- grinding and copper flotation, followed by flotation of remaining sulphides, finer grinding and leaching
- Sample
- stockwork master composite (locked-cycle)
Recovery
- Recovery
- 76 %
- Recovery Basis
- actual_test
Lab
- Laboratory
- Blue Coast Research
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-09-24T00:00:00.000Z
Reasoning: 76% silver recovery is noted as a positive new demonstration for the project.
Positive factors
- Demonstrates strong recovery of payable silver for the first time
Evidence · text
“achieved overall recoveries of... 76% silver from the stockwork master composite”
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
locked-cycleKopsa · goldRecovery: 86 %View all detailsHide details
Identity
- Project
- Kopsa
- Commodity
- gold
- Region
- finland
- Reported Region
- Finland
- Ticker
- NNL
Test Work
- Program Status
- preliminary
- Test Type
- locked-cycle
- Processing Route
- grinding and copper flotation, followed by flotation of remaining sulphides, finer grinding and leaching
- Sample
- tonalite master composite (locked-cycle)
Recovery
- Recovery
- 86 %
- Recovery Basis
- actual_test
Lab
- Laboratory
- Blue Coast Research
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-09-24T00:00:00.000Z
Reasoning: 86% gold recovery in tonalite is a solid result.
Positive factors
- Consistent recovery across mineralization styles
Evidence · text
“The tonalite master composite returned 86% gold”
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
locked-cycleKopsa · copperRecovery: 88 %View all detailsHide details
Identity
- Project
- Kopsa
- Commodity
- copper
- Region
- finland
- Reported Region
- Finland
- Ticker
- NNL
Test Work
- Program Status
- preliminary
- Test Type
- locked-cycle
- Processing Route
- grinding and copper flotation, followed by flotation of remaining sulphides, finer grinding and leaching
- Sample
- tonalite master composite (locked-cycle)
Recovery
- Recovery
- 88 %
- Recovery Basis
- actual_test
Lab
- Laboratory
- Blue Coast Research
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-09-24T00:00:00.000Z
Reasoning: 88% copper recovery in tonalite is a solid result.
Positive factors
- Consistent recovery across mineralization styles
Evidence · text
“The tonalite master composite returned... 88% 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
locked-cycleKopsa · silverRecovery: 82 %View all detailsHide details
Identity
- Project
- Kopsa
- Commodity
- silver
- Region
- finland
- Reported Region
- Finland
- Ticker
- NNL
Test Work
- Program Status
- preliminary
- Test Type
- locked-cycle
- Processing Route
- grinding and copper flotation, followed by flotation of remaining sulphides, finer grinding and leaching
- Sample
- tonalite master composite (locked-cycle)
Recovery
- Recovery
- 82 %
- Recovery Basis
- actual_test
Lab
- Laboratory
- Blue Coast Research
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-09-24T00:00:00.000Z
Reasoning: 82% silver recovery in tonalite is a solid result.
Positive factors
- Consistent recovery across mineralization styles
Evidence · text
“The tonalite master composite returned... 82% 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
variabilityKopsa · goldRecovery: 90 %View all detailsHide details
Identity
- Project
- Kopsa
- Commodity
- gold
- Region
- finland
- Reported Region
- Finland
- Ticker
- NNL
Test Work
- Program Status
- preliminary
- Test Type
- variability
- Sample
- stockwork material (variability)
Recovery
- Recovery
- 90 %
- Recovery Basis
- actual_test
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-09-24T00:00:00.000Z
Reasoning: 90% gold recovery in variability testing demonstrates consistency.
Positive factors
- High recovery even at lower grades
Evidence · text
“Variability tests averaged 90% gold recovery for stockwork material”
variabilityKopsa · goldRecovery: 88 %View all detailsHide details
Identity
- Project
- Kopsa
- Commodity
- gold
- Region
- finland
- Reported Region
- Finland
- Ticker
- NNL
Test Work
- Program Status
- preliminary
- Test Type
- variability
- Sample
- tonalite material (variability)
Recovery
- Recovery
- 88 %
- Recovery Basis
- actual_test
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-09-24T00:00:00.000Z
Reasoning: 88% gold recovery in variability testing demonstrates consistency.
Positive factors
- High recovery even at lower grades
Evidence · text
“and 88% for tonalite”
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.