Peruvian Metals Announces Gold Recoveries of 89% in Sulphides at Palta Dorada
Original announcement by tmx on
- Company
- Peruvian Metals Corp
- Ticker
- PER
- Exchange
- TSX
- Region
- Northern Peru
- Primary commodity
- Gold
- Secondary commodities
- Silver
- Document categories
- Metallurgy
- Extracted
- 2026-09-12 18:53:55 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
Peruvian Metals has announced updated metallurgical results for its Palta Dorada Gold-Silver property in Peru. Testing on sulphide material via flotation yielded 89% gold recovery, while oxide material via agitated cyanide leaching returned 82% gold recovery.
Reasoning: The release reports successful metallurgical testwork on two distinct ore domains (oxide and sulphide) with gold recoveries meeting or exceeding expectations for their respective routes.
Positive factors
- Recoveries exceeding 80% for both oxide and sulphide material
- Sulphide gold recovery of 89% via flotation
- Oxide gold recovery of 82% via cyanide leaching
- QP sign-off provided
Negative factors
- Silver recoveries are relatively low (58-61%)
- Historical sample mentioned was not representative
Facts used in scoring: 5
Classification and evidence
QP/CP Signedpositive · Story-specific tag
Qualified Person (QP) or Competent Person (CP) named and signed off — a member of a recognized professional association (e.g., AusIMM, SME, AIG, P.Geo) with relevant experience.
Why it applies: Jeffrey Reeder, P. Geo., is named as the Qualified Person who reviewed and approved the technical contents.
Evidence · text
“Qualified Person Jeffrey Reeder, P. Geo., is the Qualified Person, as defined by National Instrument 43-101”
Mill Routeneutral
Processing via mill or concentrator (CIL, CIP, tank leach, flotation).
Why it applies: the document describes a mill_cil route ("CIP")
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: 5. Some facts used in scoring do not have a stored record.
Metallurgical Results (5)
flotationPalta Dorada · goldRecovery: 89 %Head Grade: 8.3Head Grade Unit: g/tView all detailsHide details
Identity
- Project
- Palta Dorada
- Commodity
- gold
- Region
- peru
- Reported Region
- Northern Peru
- Ticker
- PER
Test Work
- Test Type
- flotation
- Processing Route
- flotation
- Sample
- sulphide material from San Juan vein shaft
Recovery
- Recovery
- 89 %
- Recovery Basis
- actual_test
- Head Grade
- 8.3
- Head Grade Unit
- g/t
Lab
- Laboratory
- Procesmin Ingenieros SRL
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-01-21T00:00:00.000Z
Reasoning: High gold recovery on sulphide material via flotation.
Positive factors
- 89% recovery is strong for sulphide flotation
Evidence · text
“Precious metal recoveries on the sulphide material using flotation returned 89% for 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
flotationPalta Dorada · silverRecovery: 61 %Head Grade: 3.39Head Grade Unit: oz/mtView all detailsHide details
Identity
- Project
- Palta Dorada
- Commodity
- silver
- Region
- peru
- Reported Region
- Northern Peru
- Ticker
- PER
Test Work
- Test Type
- flotation
- Processing Route
- flotation
- Sample
- sulphide material from San Juan vein shaft
Recovery
- Recovery
- 61 %
- Recovery Basis
- actual_test
- Head Grade
- 3.39
- Head Grade Unit
- oz/mt
Lab
- Laboratory
- Procesmin Ingenieros SRL
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-01-21T00:00:00.000Z
Reasoning: Moderate silver recovery via flotation.
Negative factors
- 61% silver recovery is relatively low
Evidence · text
“returned 89% for gold and 61% for silver”
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: 61% is below the weak band (75%)
agitated cyanide leachingPalta Dorada · goldRecovery: 82 %Head Grade: 35.1Head Grade Unit: g/tView all detailsHide details
Identity
- Project
- Palta Dorada
- Commodity
- gold
- Region
- peru
- Reported Region
- Northern Peru
- Ticker
- PER
Test Work
- Test Type
- agitated cyanide leaching
- Processing Route
- agitated cyanide leaching
- Sample
- oxide material from San Juan vein shaft
- Leach Time
- 48 hours
Recovery
- Recovery
- 82 %
- Recovery Basis
- actual_test
- Head Grade
- 35.1
- Head Grade Unit
- g/t
Lab
- Laboratory
- Procesmin Ingenieros SRL
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-01-21T00:00:00.000Z
Reasoning: Good gold recovery on high-grade oxide material.
Positive factors
- 82% recovery is solid for oxide cyanide leach
Evidence · text
“Agitated cyanide leaching results show recoveries of 82% for gold”
agitated cyanide leachingPalta Dorada · silverRecovery: 58 %Head Grade: 1.51Head Grade Unit: oz/mtView all detailsHide details
Identity
- Project
- Palta Dorada
- Commodity
- silver
- Region
- peru
- Reported Region
- Northern Peru
- Ticker
- PER
Test Work
- Test Type
- agitated cyanide leaching
- Processing Route
- agitated cyanide leaching
- Sample
- oxide material from San Juan vein shaft
- Leach Time
- 48 hours
Recovery
- Recovery
- 58 %
- Recovery Basis
- actual_test
- Head Grade
- 1.51
- Head Grade Unit
- oz/mt
Lab
- Laboratory
- Procesmin Ingenieros SRL
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-01-21T00:00:00.000Z
Reasoning: Low silver recovery via cyanide leaching.
Negative factors
- 58% silver recovery is low
Evidence · text
“and 58% for silver over 48 hours”
Tags used in scoring
Low Recoverynegative
Recovery below the weak band for the commodity and processing route.
Why it applies: 58% is below the weak band (75%)
Fact 5Palta Dorada · goldRecovery: 90 %Head Grade: 9.74Head Grade Unit: g/tHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Palta Dorada
- Commodity
- gold
- Region
- peru
- Reported Region
- Northern Peru
- Ticker
- PER
Test Work
- Sample
- oxide material (June 2022 sample)
Recovery
- Recovery
- 90 %
- Recovery Basis
- actual_test
- Head Grade
- 9.74
- Head Grade Unit
- g/t
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2022-06-01T00:00:00.000Z
Dates
- Event date
- 2026-01-21T00:00:00.000Z
Reasoning: Historical oxide recovery result.
Positive factors
- 90% recovery is high
Evidence · text
“gold recoveries of 90%”
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.