Resouro Strategic Metals Inc. (RSGOF) Metallurgical Testwork & PEA Update - Tiros Project

Original announcement by tmx on

Company
Resouro Strategic Metals Inc.
Ticker
RSM
Exchange
TSX
Region
Minas Gerais, Brazil
Primary commodity
Titanium
Secondary commodities
Rare earths
Document categories
Metallurgy, Resource update
Extracted
2026-08-26 06:41:30 UTC

Analysis by Minestarters Atlas

Minestarters Atlas analysis

Summary

Resouro Strategic Metals reported metallurgical testwork results for the Tiros Project, showing high TREO and TiO2 recoveries using a fine particle flowsheet. The company is currently optimizing beneficiation to reduce high sulphuric acid consumption and is considering pausing the PEA update until these optimizations are complete.

Reasoning: Metallurgical results show high recovery potential for titanium and rare earths, though high acid consumption remains a technical hurdle and the PEA is being paused for optimization.

Positive factors

  • high TREO extraction
  • high TiO2 recovery in fine particle flowsheet
  • encouraging beneficiation results

Negative factors

  • high sulphuric acid consumption
  • PEA potentially on hold

Facts used in scoring: 7

Atlas analysis — Resouro Strategic Metals Inc.: Resouro Strategic Metals Inc. (RSGOF) Metallurgical Testwork & PEA Update - Tiros Project. 95.2% recovery; 88.8% recovery; 94.2% recovery

Classification and evidence

Mill Routeneutral

Processing via mill or concentrator (CIL, CIP, tank leach, flotation).

Why it applies: Testwork involves fine particle flowsheet and sulphuric acid leaching.

Evidence · text

“Fine particle flow sheet (< 20 micron) using sulphuric acid”

Refractory Orenegative

Ore requires oxidation/pressure treatment before recovery — a processing and recovery risk.

Why it applies: High sulphuric acid consumption (700-1320 kg/t) indicates complex mineralogy requiring intensive leaching.

Evidence · text

“Preliminary sulphuric acid consumption ranged from 700kg/t to 1,320kg/t”

Extracted facts

Stored fact records: 7. Some facts used in scoring do not have a stored record.

Metallurgical Results (7)

sulphuric acid leachrare_earthsRecovery: 95.2 %View all details
Link to this fact

Identity

Commodity
rare_earths
Ticker
RSM

Test Work

Program Status
optimization
Test Type
sulphuric acid leach
Processing Route
sulphuric acid leach
Sample
Fine particle flowsheet (< 20 micron) using sulphuric acid

Recovery

Recovery
95.2 %
Recovery Basis
actual_test

Lab

Laboratory
SGS Lakefield

Review

Needs Review
No
Historical
No

Dates

Event date
2026-03-02T00:00:00.000Z

Reasoning: High end of reported TREO extraction range for fine particle flowsheet.

Positive factors

  • high extraction rate
sulphuric acid leachrare_earthsRecovery: 88.8 %View all details
Link to this fact

Identity

Commodity
rare_earths
Ticker
RSM

Test Work

Program Status
optimization
Test Type
sulphuric acid leach
Processing Route
sulphuric acid leach
Sample
Fine particle flowsheet (< 20 micron) using sulphuric acid

Recovery

Recovery
88.8 %
Recovery Basis
actual_test

Lab

Laboratory
SGS Lakefield

Review

Needs Review
No
Historical
No

Dates

Event date
2026-03-02T00:00:00.000Z

Reasoning: Low end of reported TREO extraction range for fine particle flowsheet.

Positive factors

  • high extraction rate
sulphuric acid leachtitaniumRecovery: 94.2 %View all details
Link to this fact

Identity

Commodity
titanium
Ticker
RSM

Test Work

Program Status
optimization
Test Type
sulphuric acid leach
Processing Route
sulphuric acid leach
Sample
Fine particle flowsheet (< 20 micron) using sulphuric acid

Recovery

Recovery
94.2 %
Recovery Basis
actual_test

Lab

Laboratory
SGS Lakefield

Review

Needs Review
No
Historical
No

Dates

Event date
2026-03-02T00:00:00.000Z

Reasoning: High end of reported TiO2 recovery range for fine particle flowsheet.

Positive factors

  • high recovery
sulphuric acid leachtitaniumRecovery: 71.2 %View all details
Link to this fact

Identity

Commodity
titanium
Ticker
RSM

Test Work

Program Status
optimization
Test Type
sulphuric acid leach
Processing Route
sulphuric acid leach
Sample
Fine particle flowsheet (< 20 micron) using sulphuric acid

Recovery

Recovery
71.2 %
Recovery Basis
actual_test

Lab

Laboratory
SGS Lakefield

Review

Needs Review
No
Historical
No

Dates

Event date
2026-03-02T00:00:00.000Z

Reasoning: Low end of reported TiO2 recovery range for fine particle flowsheet.

Positive factors

  • recovery achieved
conventional flowsheettitaniumRecovery: 39 %View all details
Link to this fact

Identity

Commodity
titanium
Ticker
RSM

Test Work

Program Status
optimization
Test Type
conventional flowsheet
Processing Route
conventional flowsheet
Sample
Coarse particle flowsheet (>75 micron) using conventional flowsheet

Recovery

Recovery
39 %
Recovery Basis
actual_test
Conc. Grade
76.8
Conc. Grade Unit
%

Lab

Laboratory
SGS Lakefield

Review

Needs Review
No
Historical
No

Dates

Event date
2026-03-02T00:00:00.000Z

Reasoning: Coarse feed results in significantly lower TiO2 recovery compared to fine particle flowsheet.

Positive factors

  • good concentrate grade

Negative factors

  • low recovery
Fact 6titaniumView all details
Link to this fact

Identity

Commodity
titanium
Ticker
RSM

Review

Needs Review
No
Historical
No

Dates

Event date
2026-03-02T00:00:00.000Z

Reasoning: Large scale TiO2 resource reported within M&I.

Positive factors

  • large scale resource
Fact 7rare_earthsView all details
Link to this fact

Identity

Commodity
rare_earths
Ticker
RSM

Review

Needs Review
No
Historical
No

Dates

Event date
2026-03-02T00:00:00.000Z

Reasoning: Significant TREO content within the M&I resource.

Positive factors

  • significant TREO content

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.