# Resouro Strategic Metals Inc. \(RSGOF\) Metallurgical Testwork & PEA Update - Tiros Project Canonical Atlas analysis: https://atlas-extractions.minestarters.com/news/resouro-strategic-metals-inc-rsgof-metallurgical-testwork-pea-update-tiros-proje--71601d83-c9f1-4457-b571-9977ad17c597 Original source: https://money.tmx.com/en/quote/RSM/news/4787264014047886/resouro-strategic-metals-inc-rsgof-metallurgical-testwork-pea-update-tiros-proje Publisher: tmx Original announcement: 2026-03-02T01:34:00.000Z Analysis by Minestarters Atlas Atlas analysis published: Unknown date Atlas analysis updated: Unknown date - Company: Resouro Strategic Metals Inc. - Ticker: RSM - Exchange: TSX - Region: Minas Gerais, Brazil - Primary commodity: Titanium - Secondary commodities: Rare earths - Document categories: Metallurgy, Economic study - Extracted: 2026-09-18 18:48:19 UTC Narrative sentiment: 0.30 · Bullish ## Minestarters Atlas summary Resouro Strategic Metals Inc. reported high recovery results from metallurgical testwork at the Tiros Project, achieving up to 95.2% TREO and 94.2% TiO2 extraction using a fine particle sulphuric acid leach. The company is currently optimizing beneficiation to reduce high sulphuric acid consumption and is advancing its Preliminary Economic Assessment \(PEA\), though the PEA may be paused pending further optimization. Reasoning: The announcement provides significant metallurgical progress with high recovery rates for both TiO2 and TREO, though high acid consumption and the potential delay of the PEA introduce technical and timeline risks. - Positive factor: High TREO extraction \(up to 95.2%\) - Positive factor: High TiO2 recovery \(up to 94.2%\) in fine particle flowsheet - Positive factor: Encouraging beneficiation testwork results - Positive factor: Advancing PEA and permitting - Negative factor: High sulphuric acid consumption \(up to 1,320 kg/t\) - Negative factor: PEA potentially being placed on hold - Negative factor: Processing costs not yet finalized Facts used in scoring: 5 ## Classification and evidence **Mill Route** Polarity: neutral Definition: Processing via mill or concentrator \(CIL, CIP, tank leach, flotation\). Why it applies: The flowsheet involves fine particle processing \(< 20 micron\) and sulphuric acid leaching. Evidence · text > Fine particle flow sheet \(< 20 micron\) using sulphuric acid **High Recovery** Polarity: positive Definition: Recovery at or above the exceptional band for the commodity and processing route. Why it applies: TREO stage extraction reached up to 95.2% and TiO2 stage recovery reached up to 94.2% in fine particle flowsheet. Evidence · text > 88.8% to 95.2% stage extraction of TREO; and - 71.2% to 94.2% of TiO2 stage recovery **PEA Only** Polarity: neutral Definition: Only Class 4 / Initial Assessment economics available. Not bankable. Why it applies: The document discusses the advancement of a Preliminary Economic Assessment \(PEA\). Evidence · text > advancement of the Preliminary Economic Assessment \("PEA"\) **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: 4. Some facts used in scoring do not have a stored record. ## Metallurgical Results (4) ### sulphuric acid leach [Link to this fact](https://atlas-extractions.minestarters.com/news/resouro-strategic-metals-inc-rsgof-metallurgical-testwork-pea-update-tiros-proje--71601d83-c9f1-4457-b571-9977ad17c597#fact-metallurgical-facts-0) Tiros Project · rare\_earths #### Identity - Project: Tiros Project - Commodity: rare\_earths - Region: brazil - Reported Region: Minas Gerais, Brazil - Ticker: RSM #### Test Work - Program Status: optimization - Test Type: sulphuric acid leach - Processing Route: Fine particle flow sheet \(< 20 micron\) using sulphuric acid - Sample: Fine particle flow sheet \(< 20 micron\) using sulphuric acid #### Recovery - Recovery: 95.2 % - Recovery Basis: actual\_test #### Lab - Laboratory: SGS Lakefield and CIT Senai and SGS Geosol #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-03-02T00:00:00.000Z Reasoning: Excellent recovery rates for both primary and secondary commodities in the fine particle flowsheet. - Positive factor: High extraction rates Evidence · text > 88.8% to 95.2% stage extraction of TREO ### sulphuric acid leach [Link to this fact](https://atlas-extractions.minestarters.com/news/resouro-strategic-metals-inc-rsgof-metallurgical-testwork-pea-update-tiros-proje--71601d83-c9f1-4457-b571-9977ad17c597#fact-metallurgical-facts-1) Tiros Project · titanium #### Identity - Project: Tiros Project - Commodity: titanium - Region: brazil - Reported Region: Minas Gerais, Brazil - Ticker: RSM #### Test Work - Program Status: optimization - Test Type: sulphuric acid leach - Processing Route: Fine particle flow sheet \(< 20 micron\) using sulphuric acid - Sample: Fine particle flow sheet \(< 20 micron\) using sulphuric acid #### Recovery - Recovery: 94.2 % - Recovery Basis: actual\_test #### Lab - Laboratory: SGS Lakefield and CIT Senai and SGS Geosol #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-03-02T00:00:00.000Z Reasoning: High recovery for TiO2 in the fine particle flowsheet. - Positive factor: High recovery rates Evidence · text > 71.2% to 94.2% of TiO2 stage recovery ### conventional flowsheet [Link to this fact](https://atlas-extractions.minestarters.com/news/resouro-strategic-metals-inc-rsgof-metallurgical-testwork-pea-update-tiros-proje--71601d83-c9f1-4457-b571-9977ad17c597#fact-metallurgical-facts-2) Tiros Project · titanium #### Identity - Project: Tiros Project - Commodity: titanium - Region: brazil - Reported Region: Minas Gerais, Brazil - Ticker: RSM #### Test Work - Program Status: optimization - Test Type: conventional flowsheet - Processing Route: Coarse particle flow sheet \(>75 micron\) using conventional flowsheet - Sample: Coarse particle flow sheet \(>75 micron\) using conventional flowsheet #### Recovery - Recovery: 39 % - Recovery Basis: actual\_test #### Lab - Laboratory: SGS Lakefield and CIT Senai and SGS Geosol #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-03-02T00:00:00.000Z Reasoning: Coarse particle flowsheet shows significantly lower TiO2 recovery compared to fine particle flowsheet. - Negative factor: Low recovery Evidence · text > TiO2 stage recovery of coarse feed 39% ### Fact 4 [Link to this fact](https://atlas-extractions.minestarters.com/news/resouro-strategic-metals-inc-rsgof-metallurgical-testwork-pea-update-tiros-proje--71601d83-c9f1-4457-b571-9977ad17c597#fact-metallurgical-facts-3) Tiros Project · titanium #### Identity - Project: Tiros Project - Commodity: titanium - Region: brazil - Reported Region: Minas Gerais, Brazil - Ticker: RSM #### Test Work - Sample: raw sample minus 20 micron fraction #### Reagents - Acid: 1320 kg/t #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-03-02T00:00:00.000Z Reasoning: High acid consumption levels reported for the raw sample. - Negative factor: High acid consumption Evidence · text > Preliminary sulphuric acid consumption ranged from 700kg/t to 1,320kg/t ## 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.