# GGM: Sturec Metallurgical Tests Achieve up to 91.4% Gold Recovery Canonical Atlas analysis: https://atlas-staging.minestarters.com/news/ggm-sturec-metallurgical-tests-achieve-up-to-91-4-gold-recovery--c984eec9-a4db-4256-994e-0b38fc5d83ce Original source: https://www.asx.com.au/asx/v2/statistics/displayAnnouncement.do?display=pdf&idsId=03142462 Publisher: asx Original announcement: 2026-09-22T22:14:00.000Z Analysis by Minestarters Atlas Atlas analysis published: 2026-09-22T23:07:05.127Z Atlas analysis updated: 2026-09-22T23:07:05.127Z - Company: Global Gold Mining - Ticker: GGM - Exchange: ASX - Region: Slovakia - Primary commodity: Gold - Secondary commodities: None reported - Document categories: Metallurgy - Extracted: 2026-09-22 23:07:05 UTC Narrative sentiment: 0.80 · Bullish ## Minestarters Atlas summary Global Gold Mining announced highly encouraging metallurgical test results for its Sturec Gold deposit in Slovakia, achieving gold recoveries of up to 91.4% to flotation concentrate from Fresh and Channel composites. These results will inform the Pre-feasibility Study and support a simple flotation flowsheet. The testwork was conducted at ALS Metallurgy under the supervision of Mining One Consultants and is JORC compliant. Reasoning: The metallurgical testwork achieved high gold recoveries of up to 91.4% to flotation concentrate for Fresh and Channel composites, supporting a simple flotation flowsheet for the Sturec Gold deposit. While the Transitional composite showed lower recovery due to partial oxidation, the overall results are highly encouraging for the project's PFS, demonstrating good metallurgical characteristics and de-risking future development. - Positive factor: High Recovery - Positive factor: Multi-Domain Tested - Positive factor: Mill Route - Positive factor: QP/CP Signed - Positive factor: JORC Compliant - Negative factor: Bench Scale Only - Negative factor: Refractory Ore - Negative factor: Recovery to concentrate, not final payable metal Low confidence — this extraction should be reviewed alongside the original source. 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: Gold recoveries of 91.4% and 91.0% to flotation concentrate are at or above the exceptional band for the flotation processing route. Evidence · text > Fresh and Channel composite tests achieved gold recoveries to flotation concentrate of 91.4% and 91.0%, respectively **Multi-Domain Tested** Polarity: positive Definition: Variability across ore domains \(oxide, transition, fresh\) has been addressed. Why it applies: The testwork included Fresh, Transitional, and Channel composites, indicating variability across ore domains was addressed. Evidence · text > Three variability tests were conducted on the Fresh, Transitional and Channel composites using the selected test conditions. **Mill Route** Polarity: neutral Definition: Processing via mill or concentrator \(CIL, CIP, tank leach, flotation\). Why it applies: The processing route described is a flotation flowsheet, which is a type of mill route. Evidence · text > The results support further evaluation of a flotation flowsheet incorporating rougher-concentrate regrinding and two stages of cleaning **QP/CP Signed** Polarity: positive Story-specific tag Definition: 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: Mr Louis Cohalan, a Member of the Australian Institute of Geoscientists and full-time employee of Mining One Consultants Pty Ltd, is named as the Competent Person responsible for the metallurgical testwork. Evidence · text > The information in this announcement that relates to Exploration Results and Metallurgical Testwork is based on, and fairly represents, information and supporting documentation compiled by Mr Louis Cohalan, who is a Member of the Australian Institute of Geoscientists. Mr Cohalan is a full-time employee of Mining One Consultants Pty Ltd. Mr Cohalan has sufficient experience relevant to the style of mineralisation and type of deposit under consideration, and to the activities being undertaken, to qualify as a Competent Person as defined in the 2012 Edition of the Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves \(the “JORC Code”\). **JORC Compliant** Polarity: positive Story-specific tag Definition: Resource estimate prepared in compliance with JORC Code \(Australia\) — high reporting standard. Why it applies: The metallurgical testwork is reported in compliance with the 2012 Edition of the Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves \(the “JORC Code”\). Evidence · text > to qualify as a Competent Person as defined in the 2012 Edition of the Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves \(the “JORC Code”\). **Bench Scale Only** Polarity: negative Definition: Only preliminary bench tests completed — no locked-cycle or pilot work. Why it applies: The testwork program describes sequential optimisation and variability tests on composites, without mention of pilot or demonstration plant scale operations. Evidence · text > The testwork program worked through a series of sequential optimisation tests on the Master composite, progressively trialling different test conditions to optimise concentrate grade and recovery. **Refractory Ore** Polarity: negative Definition: Ore requires oxidation/pressure treatment before recovery — a processing and recovery risk. Why it applies: The Transitional composite, noted as partly oxidised, returned a lower recovery of 79.5%, suggesting some metallurgical complexity for this ore type. Evidence · text > The Transitional composite was partly oxidised and returned the lowest recovery of the three composites. **Gravity Route** Polarity: neutral Definition: Gravity separation forms a material part of the flowsheet. Why it applies: the document describes a gravity route \("gravity"\) ## Extracted facts Stored fact records: 3. Some facts used in scoring do not have a stored record. ## Metallurgical Results (3) ### flotation [Link to this fact](https://atlas-staging.minestarters.com/news/ggm-sturec-metallurgical-tests-achieve-up-to-91-4-gold-recovery--c984eec9-a4db-4256-994e-0b38fc5d83ce#fact-metallurgical-facts-0) Sturec Gold deposit · gold #### Identity - Project: Sturec Gold deposit - Commodity: gold - Region: slovakia - Reported Region: Slovakia - Ticker: GGM #### Test Work - Program Status: preliminary - Test Type: flotation - Processing Route: flotation flowsheet incorporating rougher-concentrate regrinding and two stages of cleaning - Sample: Fresh composite - Grind P80: 75 µm #### Recovery - Recovery: 91.4 % - Recovery Basis: to\_concentrate - Head Grade: 0.97 - Head Grade Unit: g/t - Conc. Grade: 20.2 - Conc. Grade Unit: g/t #### Lab - Laboratory: ALS Metallurgy - Consultant: Mining One Consultants #### Location - CRS: WGS84 / UTM Zone 34N - Loc. Confidence: medium #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-09-22T00:00:00.000Z Reasoning: The Fresh composite achieved a high gold recovery of 91.4% to flotation concentrate, which is an excellent result for this processing route and supports the project's economic viability at the PFS stage. - Positive factor: High Recovery - Positive factor: Mill Route - Negative factor: Bench Scale Only - Negative factor: Recovery to concentrate, not final payable metal Evidence · table > 91.4 Context: Fresh #### Tags used in scoring **Mill Route** Polarity: neutral Definition: Processing via mill or concentrator \(CIL, CIP, tank leach, flotation\). Why it applies: processing\_route matches the flotation signal ### flotation [Link to this fact](https://atlas-staging.minestarters.com/news/ggm-sturec-metallurgical-tests-achieve-up-to-91-4-gold-recovery--c984eec9-a4db-4256-994e-0b38fc5d83ce#fact-metallurgical-facts-1) Sturec Gold deposit · gold #### Identity - Project: Sturec Gold deposit - Commodity: gold - Region: slovakia - Reported Region: Slovakia - Ticker: GGM #### Test Work - Program Status: preliminary - Test Type: flotation - Processing Route: flotation flowsheet incorporating rougher-concentrate regrinding and two stages of cleaning - Sample: Transitional composite - Grind P80: 75 µm #### Recovery - Recovery: 79.5 % - Recovery Basis: to\_concentrate - Head Grade: 1.29 - Head Grade Unit: g/t #### Lab - Laboratory: ALS Metallurgy - Consultant: Mining One Consultants #### Location - CRS: WGS84 / UTM Zone 34N - Loc. Confidence: medium #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-09-22T00:00:00.000Z Reasoning: The Transitional composite showed a lower gold recovery of 79.5% to flotation concentrate, attributed to its partly oxidised nature, indicating potential metallurgical complexity for this ore type. - Positive factor: Mill Route - Negative factor: Low Recovery - Negative factor: Refractory Ore - Negative factor: Bench Scale Only - Negative factor: Recovery to concentrate, not final payable metal Evidence · text > Overall gold recoveries to flotation concentrate were 91.4%, 79.5% and 91.0%, respectively. The Fresh and Channel concentrates graded 20.2 g/t Au and 84.4 g/t Au. The Transitional composite was partly oxidised and returned the lowest recovery of the three composites. #### Tags used in scoring **Mill Route** Polarity: neutral Definition: Processing via mill or concentrator \(CIL, CIP, tank leach, flotation\). Why it applies: processing\_route matches the flotation signal **Low Recovery** Polarity: negative Definition: Recovery below the weak band for the commodity and processing route. Why it applies: 79.5% is below the weak band \(80%\) ### flotation [Link to this fact](https://atlas-staging.minestarters.com/news/ggm-sturec-metallurgical-tests-achieve-up-to-91-4-gold-recovery--c984eec9-a4db-4256-994e-0b38fc5d83ce#fact-metallurgical-facts-2) Sturec Gold deposit · gold #### Identity - Project: Sturec Gold deposit - Commodity: gold - Region: slovakia - Reported Region: Slovakia - Ticker: GGM #### Test Work - Program Status: preliminary - Test Type: flotation - Processing Route: flotation flowsheet incorporating rougher-concentrate regrinding and two stages of cleaning - Sample: Channel composite - Grind P80: 75 µm #### Recovery - Recovery: 91 % - Recovery Basis: to\_concentrate - Head Grade: 2.89 - Head Grade Unit: g/t - Conc. Grade: 84.4 - Conc. Grade Unit: g/t #### Lab - Laboratory: ALS Metallurgy - Consultant: Mining One Consultants #### Location - CRS: WGS84 / UTM Zone 34N - Loc. Confidence: medium #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-09-22T00:00:00.000Z Reasoning: The Channel composite achieved a high gold recovery of 91.0% to flotation concentrate, demonstrating excellent metallurgical response for this material type and supporting the project's development. - Positive factor: High Recovery - Positive factor: Mill Route - Negative factor: Bench Scale Only - Negative factor: Recovery to concentrate, not final payable metal Evidence · table > 91.0 Context: Channel #### Tags used in scoring **Mill Route** Polarity: neutral Definition: Processing via mill or concentrator \(CIL, CIP, tank leach, flotation\). Why it applies: processing\_route matches the flotation signal ## 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.