Meridian Smelter Tests Deliver High Quality Blister Copper from Cabaçal Copper Concentrates
Original announcement by tmx on
- Company
- Meridian Mining plc
- Ticker
- MNO
- Exchange
- TSX
- Region
- Mato Grosso, Brazil
- Primary commodity
- Copper
- Secondary commodities
- Gold, Silver
- Document categories
- Metallurgy
- Extracted
- 2026-08-23 22:22:22 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
Meridian Mining has successfully completed laboratory-scale smelting and converting tests on Cabaçal copper concentrates, producing high-quality blister copper with 98.9% purity. The results confirmed significant gold (95.2 g/t) and silver (387.6 g/t) credits and exceptionally low impurity levels, supporting the project's DFS and upcoming off-take discussions.
Reasoning: Laboratory-scale smelting tests successfully produced high-purity (98.9%) blister copper with significant gold and silver credits, confirming the marketability of Cabaçal concentrates.
Positive factors
- high purity blister copper
- significant precious metal credits
- low impurity levels
- demonstrated smelting efficiency
Facts used in scoring: 3
Classification and evidence
Free Millingpositive
Simple, clean ore amenable to standard processing without oxidation.
Why it applies: The release describes high recoveries and efficient conversion of copper sulphides into high-quality blister copper.
Evidence · text
“demonstrate that Cabaçal's copper concentrates convert efficiently into high-quality copper blister”
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: Dr. Norm Lotter, a Qualified Person, has reviewed and approved the technical information.
Evidence · text
“Dr. Norm Lotter... a Qualified Person as defined by National Instrument 43-101, has reviewed, verified and approved the technical information”
Extracted facts
Stored fact records: 3. Some facts used in scoring do not have a stored record.
Metallurgical Results (3)
smelting and convertingCabaçal · copperHead Grade: 98.9Head Grade Unit: %View all detailsHide details
Identity
- Project
- Cabaçal
- Commodity
- copper
- Region
- brazil
- Reported Region
- Mato Grosso, Brazil
- Ticker
- MNO
Test Work
- Program Status
- detailed
- Test Type
- smelting and converting
- Processing Route
- smelting and converting
- Sample
- Cabaçal blister copper
Recovery
- Head Grade
- 98.9
- Head Grade Unit
- %
Lab
- Laboratory
- Kingston Process Metallurgy (KPM)
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-07-30T00:00:00.000Z
Reasoning: Produced 98.9% pure blister copper.
Positive factors
- high purity
Evidence · table
“98.9”
Context: Grade
smelting and convertingCabaçal · goldHead Grade: 95.2Head Grade Unit: g/tView all detailsHide details
Identity
- Project
- Cabaçal
- Commodity
- gold
- Region
- brazil
- Reported Region
- Mato Grosso, Brazil
- Ticker
- MNO
Test Work
- Program Status
- detailed
- Test Type
- smelting and converting
- Processing Route
- smelting and converting
- Sample
- Cabaçal blister copper
Recovery
- Head Grade
- 95.2
- Head Grade Unit
- g/t
Lab
- Laboratory
- Kingston Process Metallurgy (KPM)
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-07-30T00:00:00.000Z
Reasoning: High gold content in the blister copper product.
Positive factors
- significant credits
Evidence · table
“95.2”
Context: Grade
smelting and convertingCabaçal · silverHead Grade: 387.6Head Grade Unit: g/tView all detailsHide details
Identity
- Project
- Cabaçal
- Commodity
- silver
- Region
- brazil
- Reported Region
- Mato Grosso, Brazil
- Ticker
- MNO
Test Work
- Program Status
- detailed
- Test Type
- smelting and converting
- Processing Route
- smelting and converting
- Sample
- Cabaçal blister copper
Recovery
- Head Grade
- 387.6
- Head Grade Unit
- g/t
Lab
- Laboratory
- Kingston Process Metallurgy (KPM)
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-07-30T00:00:00.000Z
Reasoning: High silver content in the blister copper product.
Positive factors
- significant credits
Evidence · table
“387.6”
Context: Grade
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.