# Meridian Smelter Tests Deliver High Quality Blister Copper from Caba&\#xE7;al Copper Concentrates Canonical Atlas analysis: https://atlas-extractions.minestarters.com/news/meridian-smelter-tests-deliver-high-quality-blister-copper-from-caba-xe7-al-copp--cf0689ea-23c5-4532-b1b6-89a5d7f1a499 Original source: https://money.tmx.com/en/quote/MNO/news/7818000769177096/meridian-smelter-tests-deliver-high-quality-blister-copper-from-caba-xe7-al-copp Publisher: tmx Original announcement: 2026-07-30T06:00:00.000Z Analysis by Minestarters Atlas Atlas analysis published: Unknown date Atlas analysis updated: Unknown date - Company: Meridian Mining plc - Ticker: MNO - Exchange: TSX - Region: Mato Grosso, Brazil - Primary commodity: Copper - Secondary commodities: Gold, Silver - Document categories: Metallurgy - Extracted: 2026-09-16 10:26:29 UTC Narrative sentiment: 0.90 · Bullish ## Minestarters Atlas summary Meridian Mining has successfully completed laboratory-scale smelting and converting tests on Cabaçal copper concentrates, producing high-purity blister copper \(98.9% Cu\). The resulting blister copper also contains significant gold \(95.2 g/t\) and silver \(387.6 g/t\) credits with impurity levels that outperform industry averages. Reasoning: Laboratory-scale smelting tests successfully produced high-purity blister copper with significant gold and silver credits, confirming the marketability of the Cabaçal concentrates. - Positive factor: High purity blister copper \(98.9% Cu\) - Positive factor: Significant precious metal credits \(95.2 g/t Au, 387.6 g/t Ag\) - Positive factor: Low impurity levels outperforming industry average - Positive factor: Demonstrated efficient conversion of concentrates Facts used in scoring: 3 ## Classification and evidence **High Recovery** Polarity: positive Definition: Recovery at or above the exceptional band for the commodity and processing route. Why it applies: The release notes high recoveries of copper, gold, and silver in the smelting stage. Evidence · text > The associated high recoveries of copper, and gold and silver in the smelting stage **Free Milling** Polarity: positive Definition: Simple, clean ore amenable to standard processing without oxidation. Why it applies: The blister copper produced shows high purity and efficient conversion, suggesting clean mineralogy. Evidence · text > Cabaçal's low impurity Cu + Au-Ag sulphides exhibit superior smelting performance **Mill Route** Polarity: neutral Definition: Processing via mill or concentrator \(CIL, CIP, tank leach, flotation\). Why it applies: the document describes a flotation route \("flotation"\) **Gravity Route** Polarity: neutral Definition: Gravity separation forms a material part of the flowsheet. Why it applies: the document describes a gravity route \("gravity"\) **Single Domain Only** Polarity: negative Definition: Testing limited to one composite or domain — representativeness not established. Why it applies: only one composite was tested ## Extracted facts Stored fact records: 3. Some facts used in scoring do not have a stored record. ## Metallurgical Results (3) ### smelting and converting [Link to this fact](https://atlas-extractions.minestarters.com/news/meridian-smelter-tests-deliver-high-quality-blister-copper-from-caba-xe7-al-copp--cf0689ea-23c5-4532-b1b6-89a5d7f1a499#fact-metallurgical-facts-0) Cabaçal · copper #### 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: laboratory-scale smelting and converting - Sample: Cabaçal blister copper #### Recovery - Recovery Basis: unspecified - Head Grade: 98.9 - Head Grade Unit: % - Conc. Grade: 98.9 - Conc. Grade Unit: % #### Lab - Laboratory: Kingston Process Metallurgy \(KPM\) - Consultant: Flowsheets Metallurgical Consulting Inc. #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: High purity blister copper produced from concentrate. - Positive factor: 98.9% purity Evidence · text > produced high-quality blister copper grading 98.9 % Cu ### smelting and converting [Link to this fact](https://atlas-extractions.minestarters.com/news/meridian-smelter-tests-deliver-high-quality-blister-copper-from-caba-xe7-al-copp--cf0689ea-23c5-4532-b1b6-89a5d7f1a499#fact-metallurgical-facts-1) Cabaçal · gold #### 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: laboratory-scale smelting and converting - Sample: Cabaçal blister copper #### Recovery - Recovery Basis: unspecified - Head Grade: 95.2 - Head Grade Unit: g/t - Conc. Grade: 95.2 - Conc. Grade Unit: g/t #### Lab - Laboratory: Kingston Process Metallurgy \(KPM\) - Consultant: Flowsheets Metallurgical Consulting Inc. #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: High gold grade in the produced blister copper. - Positive factor: Significant gold credits in blister copper Evidence · text > 95.2 g/t Au ### smelting and converting [Link to this fact](https://atlas-extractions.minestarters.com/news/meridian-smelter-tests-deliver-high-quality-blister-copper-from-caba-xe7-al-copp--cf0689ea-23c5-4532-b1b6-89a5d7f1a499#fact-metallurgical-facts-2) Cabaçal · silver #### 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: laboratory-scale smelting and converting - Sample: Cabaçal blister copper #### Recovery - Recovery Basis: unspecified - Head Grade: 387.6 - Head Grade Unit: g/t - Conc. Grade: 387.6 - Conc. Grade Unit: g/t #### Lab - Laboratory: Kingston Process Metallurgy \(KPM\) - Consultant: Flowsheets Metallurgical Consulting Inc. #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-07-30T00:00:00.000Z Reasoning: High silver grade in the produced blister copper. - Positive factor: Significant silver credits in blister copper Evidence · text > 387.6 g/t Ag ## 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.