# Fitzroy Minerals Reports Copper Recoveries of up to 82.6% from Mini-Column Testing, with Preliminary Larger-Scale Results Trending Higher, at the Buen Retiro Copper Project, Chile Canonical Atlas analysis: https://atlas-extractions.minestarters.com/news/fitzroy-minerals-reports-copper-recoveries-of-up-to-82-6-from-mini-column-testin--e7c2e809-1116-4fd2-9d34-340783f8889d Original source: https://orestocks.com/company/FTZ.V/press-releases/6588162998374365 Publisher: orestocks Original announcement: 2026-09-23T11:00:00.000Z Analysis by Minestarters Atlas Atlas analysis published: Unknown date Atlas analysis updated: Unknown date - Company: Fitzroy Minerals Inc. - Ticker: FTZ.V - Exchange: Unavailable - Region: Chile - Primary commodity: Copper - Secondary commodities: None reported - Document categories: Metallurgy - Extracted: 2026-09-23 12:08:23 UTC Narrative sentiment: 0.70 · Bullish ## Minestarters Atlas summary Fitzroy Minerals announced positive initial metallurgical test results from its Buen Retiro Copper Project in Chile, with mini-column heap leach recoveries reaching up to 82.6% for mixed material after 21 days, alongside low-to-moderate acid consumption. Preliminary 1-metre column tests are trending higher, projecting recoveries up to 95% for mixed material after 70 days. The company also noted favorable rock hardness and abrasiveness, which should positively impact crushing costs, and plans to incorporate these results into a PFS for Q2 2027. Reasoning: Fitzroy Minerals reported strong initial metallurgical test results for its Buen Retiro Copper Project, with mini-column recoveries up to 82.6% and preliminary 1-metre column results trending even higher. The low acid consumption and favorable rock characteristics are positive indicators for the planned heap leach operation, significantly de-risking the project. While 1-metre column results are still preliminary, the overall outlook is very positive. - Positive factor: High copper recoveries achieved in mini-column tests, exceeding expectations for heap leaching. - Positive factor: Preliminary larger-scale 1-metre column tests are trending higher, indicating further recovery improvement. - Positive factor: Low-to-moderate net acid consumption, which is favorable for operating costs. - Positive factor: Excellent test reproducibility confirmed by duplicate mini-column tests. - Positive factor: Favorable rock hardness \(soft\) and medium-to-moderate abrasiveness, suggesting lower crushing costs. - Positive factor: Identification of chloride addition as an opportunity to optimize recovery and acid consumption. - Positive factor: Comprehensive test program designed with multiple stages \(mini-columns, 1-metre, 3-metre columns\) to de-risk the project. - Negative factor: 1-metre column results are still preliminary and metallurgical balances are not yet closed. - Negative factor: Low-grade oxide unit showed higher specific acid consumption, potentially limiting leach time extension benefits for this unit. Facts used in scoring: 10 ## Classification and evidence **Heap Leach Route** Polarity: neutral Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. Why it applies: the document describes a heap\_leach route \("heap leach"\) **Multi-Domain Tested** Polarity: positive Definition: Variability across ore domains \(oxide, transition, fresh\) has been addressed. Why it applies: 3 distinct composites were tested ## Extracted facts Stored fact records: 10. Some facts used in scoring do not have a stored record. ## Metallurgical Results (10) ### mini-column [Link to this fact](https://atlas-extractions.minestarters.com/news/fitzroy-minerals-reports-copper-recoveries-of-up-to-82-6-from-mini-column-testin--e7c2e809-1116-4fd2-9d34-340783f8889d#fact-metallurgical-facts-0) Buen Retiro Copper Project · copper #### Identity - Project: Buen Retiro Copper Project - Commodity: copper - Region: chile - Reported Region: Chile - Ticker: FTZ.V #### Test Work - Program Status: preliminary - Test Type: mini-column - Processing Route: heap leach - Sample: High-grade oxide - Leach Time: 504 hours #### Recovery - Recovery: 71.8 % - Recovery Basis: actual\_test - Head Grade: 0.95 - Head Grade Unit: % #### Reagents - Reagent Notes: Net specific acid consumption: 4.9 kg H₂SO₄/kg Cu recovered #### Lab - Laboratory: SGS Laboratories #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-09-23T00:00:00.000Z Reasoning: 71.8% copper recovery for high-grade oxide material in mini-column tests is a strong result for heap leaching, supported by low acid consumption and good reproducibility. - Positive factor: High recovery for oxide material via heap leach. - Positive factor: Low specific acid consumption. - Positive factor: Test reproducibility confirmed by duplicates. Evidence · table > 71.8 Context: High-grade oxide #### Tags used in scoring **Heap Leach Route** Polarity: neutral Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. Why it applies: processing\_route matches the heap\_leach signal ### mini-column [Link to this fact](https://atlas-extractions.minestarters.com/news/fitzroy-minerals-reports-copper-recoveries-of-up-to-82-6-from-mini-column-testin--e7c2e809-1116-4fd2-9d34-340783f8889d#fact-metallurgical-facts-1) Buen Retiro Copper Project · copper #### Identity - Project: Buen Retiro Copper Project - Commodity: copper - Region: chile - Reported Region: Chile - Ticker: FTZ.V #### Test Work - Program Status: preliminary - Test Type: mini-column - Processing Route: heap leach - Sample: Low-grade oxide - Leach Time: 504 hours #### Recovery - Recovery: 59.9 % - Recovery Basis: actual\_test - Head Grade: 0.35 - Head Grade Unit: % #### Reagents - Reagent Notes: Net specific acid consumption: 11.2 kg H₂SO₄/kg Cu recovered #### Lab - Laboratory: SGS Laboratories #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-09-23T00:00:00.000Z Reasoning: 59.9% copper recovery for low-grade oxide material in mini-column tests is a good result for heap leaching, though specific acid consumption is higher than other units. - Positive factor: Good recovery for low-grade oxide material via heap leach. - Positive factor: Test reproducibility confirmed by duplicates. - Negative factor: Higher specific acid consumption compared to other units, potentially limiting leach time extension benefits. Evidence · table > 59.9 Context: Low-grade oxide #### Tags used in scoring **Heap Leach Route** Polarity: neutral Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. Why it applies: processing\_route matches the heap\_leach signal ### mini-column [Link to this fact](https://atlas-extractions.minestarters.com/news/fitzroy-minerals-reports-copper-recoveries-of-up-to-82-6-from-mini-column-testin--e7c2e809-1116-4fd2-9d34-340783f8889d#fact-metallurgical-facts-2) Buen Retiro Copper Project · copper #### Identity - Project: Buen Retiro Copper Project - Commodity: copper - Region: chile - Reported Region: Chile - Ticker: FTZ.V #### Test Work - Program Status: preliminary - Test Type: mini-column - Processing Route: heap leach - Sample: Mixed - Leach Time: 504 hours #### Recovery - Recovery: 82.6 % - Recovery Basis: actual\_test - Head Grade: 1.24 - Head Grade Unit: % #### Reagents - Reagent Notes: Net specific acid consumption: 3.4 kg H₂SO₄/kg Cu recovered #### Lab - Laboratory: SGS Laboratories #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-09-23T00:00:00.000Z Reasoning: 82.6% copper recovery for mixed material in mini-column tests is an exceptional result for heap leaching, achieved with very low acid consumption, indicating strong economic potential. - Positive factor: Exceptional recovery for mixed material via heap leach. - Positive factor: Very low specific acid consumption. - Positive factor: Highest recovery achieved among the tested units. Evidence · table > 82.6 Context: Mixed #### Tags used in scoring **Heap Leach Route** Polarity: neutral Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. Why it applies: processing\_route matches the heap\_leach signal **High Recovery** Polarity: positive Definition: Recovery at or above the exceptional band for the commodity and processing route. Why it applies: 82.6% is at or above the exceptional band \(80%\) ### mini-column [Link to this fact](https://atlas-extractions.minestarters.com/news/fitzroy-minerals-reports-copper-recoveries-of-up-to-82-6-from-mini-column-testin--e7c2e809-1116-4fd2-9d34-340783f8889d#fact-metallurgical-facts-3) Buen Retiro Copper Project · copper #### Identity - Project: Buen Retiro Copper Project - Commodity: copper - Region: chile - Reported Region: Chile - Ticker: FTZ.V #### Test Work - Program Status: preliminary - Test Type: mini-column - Processing Route: heap leach - Sample: High-grade oxide \(duplicate\) - Leach Time: 504 hours #### Recovery - Recovery: 71.78 % - Recovery Basis: actual\_test - Head Grade: 0.95 - Head Grade Unit: % #### Lab - Laboratory: SGS Laboratories #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-09-23T00:00:00.000Z Reasoning: 71.78% copper recovery for high-grade oxide material in a duplicate mini-column test confirms the reproducibility of the strong initial results. - Positive factor: High recovery for oxide material via heap leach. - Positive factor: Confirms reproducibility of test results. Evidence · table > 71.78 Context: High-grade oxide #### Tags used in scoring **Heap Leach Route** Polarity: neutral Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. Why it applies: processing\_route matches the heap\_leach signal ### mini-column [Link to this fact](https://atlas-extractions.minestarters.com/news/fitzroy-minerals-reports-copper-recoveries-of-up-to-82-6-from-mini-column-testin--e7c2e809-1116-4fd2-9d34-340783f8889d#fact-metallurgical-facts-4) Buen Retiro Copper Project · copper #### Identity - Project: Buen Retiro Copper Project - Commodity: copper - Region: chile - Reported Region: Chile - Ticker: FTZ.V #### Test Work - Program Status: preliminary - Test Type: mini-column - Processing Route: heap leach - Sample: High-grade oxide \(duplicate\) - Leach Time: 504 hours #### Recovery - Recovery: 71.91 % - Recovery Basis: actual\_test - Head Grade: 0.95 - Head Grade Unit: % #### Lab - Laboratory: SGS Laboratories #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-09-23T00:00:00.000Z Reasoning: 71.91% copper recovery for high-grade oxide material in a duplicate mini-column test further confirms the reproducibility of the strong initial results. - Positive factor: High recovery for oxide material via heap leach. - Positive factor: Confirms reproducibility of test results. Evidence · table > 71.91 Context: 71.78 #### Tags used in scoring **Heap Leach Route** Polarity: neutral Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. Why it applies: processing\_route matches the heap\_leach signal ### mini-column [Link to this fact](https://atlas-extractions.minestarters.com/news/fitzroy-minerals-reports-copper-recoveries-of-up-to-82-6-from-mini-column-testin--e7c2e809-1116-4fd2-9d34-340783f8889d#fact-metallurgical-facts-5) Buen Retiro Copper Project · copper #### Identity - Project: Buen Retiro Copper Project - Commodity: copper - Region: chile - Reported Region: Chile - Ticker: FTZ.V #### Test Work - Program Status: preliminary - Test Type: mini-column - Processing Route: heap leach - Sample: Low-grade oxide \(duplicate\) - Leach Time: 504 hours #### Recovery - Recovery: 60.34 % - Recovery Basis: actual\_test - Head Grade: 0.35 - Head Grade Unit: % #### Lab - Laboratory: SGS Laboratories #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-09-23T00:00:00.000Z Reasoning: 60.34% copper recovery for low-grade oxide material in a duplicate mini-column test confirms the reproducibility of the good initial results. - Positive factor: Good recovery for low-grade oxide material via heap leach. - Positive factor: Confirms reproducibility of test results. Evidence · table > 60.34 Context: Low-grade oxide #### Tags used in scoring **Heap Leach Route** Polarity: neutral Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. Why it applies: processing\_route matches the heap\_leach signal ### mini-column [Link to this fact](https://atlas-extractions.minestarters.com/news/fitzroy-minerals-reports-copper-recoveries-of-up-to-82-6-from-mini-column-testin--e7c2e809-1116-4fd2-9d34-340783f8889d#fact-metallurgical-facts-6) Buen Retiro Copper Project · copper #### Identity - Project: Buen Retiro Copper Project - Commodity: copper - Region: chile - Reported Region: Chile - Ticker: FTZ.V #### Test Work - Program Status: preliminary - Test Type: mini-column - Processing Route: heap leach - Sample: Low-grade oxide \(duplicate\) - Leach Time: 504 hours #### Recovery - Recovery: 59.4 % - Recovery Basis: actual\_test - Head Grade: 0.35 - Head Grade Unit: % #### Lab - Laboratory: SGS Laboratories #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-09-23T00:00:00.000Z Reasoning: 59.40% copper recovery for low-grade oxide material in a duplicate mini-column test further confirms the reproducibility of the good initial results. - Positive factor: Good recovery for low-grade oxide material via heap leach. - Positive factor: Confirms reproducibility of test results. Evidence · table > 59.40 Context: 60.34 #### Tags used in scoring **Heap Leach Route** Polarity: neutral Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. Why it applies: processing\_route matches the heap\_leach signal ### 1-metre column [Link to this fact](https://atlas-extractions.minestarters.com/news/fitzroy-minerals-reports-copper-recoveries-of-up-to-82-6-from-mini-column-testin--e7c2e809-1116-4fd2-9d34-340783f8889d#fact-metallurgical-facts-7) Buen Retiro Copper Project · copper #### Identity - Project: Buen Retiro Copper Project - Commodity: copper - Region: chile - Reported Region: Chile - Ticker: FTZ.V #### Test Work - Program Status: preliminary - Test Type: 1-metre column - Processing Route: heap leach - Sample: High-grade oxide - Leach Time: 1680 hours #### Recovery - Recovery: 85 % - Recovery Basis: actual\_test #### Lab - Laboratory: SGS Laboratories #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-09-23T00:00:00.000Z Reasoning: Preliminary 1-metre column tests project 85% copper recovery for high-grade oxide, which is a very strong result and an improvement over mini-column tests, though still awaiting final confirmation. - Positive factor: Very high projected recovery for high-grade oxide material. - Positive factor: Larger-scale test trending higher than mini-columns. - Negative factor: Results are preliminary and metallurgical balance is not yet closed. Evidence · text > preliminary copper recoveries of 85% for the high-grade oxide \(C1401\) #### Tags used in scoring **Heap Leach Route** Polarity: neutral Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. Why it applies: processing\_route matches the heap\_leach signal **High Recovery** Polarity: positive Definition: Recovery at or above the exceptional band for the commodity and processing route. Why it applies: 85% is at or above the exceptional band \(80%\) ### 1-metre column [Link to this fact](https://atlas-extractions.minestarters.com/news/fitzroy-minerals-reports-copper-recoveries-of-up-to-82-6-from-mini-column-testin--e7c2e809-1116-4fd2-9d34-340783f8889d#fact-metallurgical-facts-8) Buen Retiro Copper Project · copper #### Identity - Project: Buen Retiro Copper Project - Commodity: copper - Region: chile - Reported Region: Chile - Ticker: FTZ.V #### Test Work - Program Status: preliminary - Test Type: 1-metre column - Processing Route: heap leach - Sample: Low-grade oxide - Leach Time: 1680 hours #### Recovery - Recovery: 74 % - Recovery Basis: actual\_test #### Lab - Laboratory: SGS Laboratories #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-09-23T00:00:00.000Z Reasoning: Preliminary 1-metre column tests project 74% copper recovery for low-grade oxide, which is a strong result and an improvement over mini-column tests, though still awaiting final confirmation. - Positive factor: Strong projected recovery for low-grade oxide material. - Positive factor: Larger-scale test trending higher than mini-columns. - Negative factor: Results are preliminary and metallurgical balance is not yet closed. Evidence · text > 74% for the low-grade oxide \(C1403\) #### Tags used in scoring **Heap Leach Route** Polarity: neutral Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. Why it applies: processing\_route matches the heap\_leach signal ### 1-metre column [Link to this fact](https://atlas-extractions.minestarters.com/news/fitzroy-minerals-reports-copper-recoveries-of-up-to-82-6-from-mini-column-testin--e7c2e809-1116-4fd2-9d34-340783f8889d#fact-metallurgical-facts-9) Buen Retiro Copper Project · copper #### Identity - Project: Buen Retiro Copper Project - Commodity: copper - Region: chile - Reported Region: Chile - Ticker: FTZ.V #### Test Work - Program Status: preliminary - Test Type: 1-metre column - Processing Route: heap leach - Sample: Mixed - Leach Time: 1680 hours #### Recovery - Recovery: 95 % - Recovery Basis: actual\_test #### Lab - Laboratory: SGS Laboratories #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-09-23T00:00:00.000Z Reasoning: Preliminary 1-metre column tests project 95% copper recovery for mixed material, which is an exceptional result and a significant improvement over mini-column tests, indicating very strong economic potential, though still awaiting final confirmation. - Positive factor: Exceptional projected recovery for mixed material. - Positive factor: Significantly higher recovery than mini-column tests, indicating strong potential. - Negative factor: Results are preliminary and metallurgical balance is not yet closed. Evidence · text > approximately 95% for the mixed unit \(C1405\) #### Tags used in scoring **Heap Leach Route** Polarity: neutral Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. Why it applies: processing\_route matches the heap\_leach signal **High Recovery** Polarity: positive Definition: Recovery at or above the exceptional band for the commodity and processing route. Why it applies: 95% is at or above the exceptional band \(80%\) ## 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.