HIGH-GRADE SPODUMENE AND TANTALUM CONCENTRATES CONFIRMED AT CASE LAKE
Original announcement by tmx on
- Company
- Power Metals Corp
- Ticker
- PWM
- Exchange
- TSX
- Region
- Ontario, Canada
- Primary commodity
- Lithium
- Secondary commodities
- Tantalum, Cesium, Iron ore
- Document categories
- Metallurgy
- Extracted
- 2026-08-22 07:00:28 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
Power Metals Corp has confirmed high-grade spodumene (up to 7.20% Li2O) and tantalum (12,508 ppm Ta) concentrates through DMS, flotation, and magnetic separation test work. The results demonstrate that the waste from previous cesium ore sorting is amenable to lithium and tantalum recovery, enhancing the project's multi-element value.
Reasoning: Metallurgical test work successfully demonstrated high-grade concentrates for lithium and tantalum from waste material of previous ore sorting, significantly de-risking the multi-commodity potential of the project.
Positive factors
- High-grade spodumene concentrate (7.20% Li2O)
- High flotation recovery (99.50%)
- Low iron impurities (0.66%)
- Successful tantalum recovery (12,508 ppm)
- Multi-element potential (Li, Ta, Cs)
Facts used in scoring: 3
Classification and evidence
High Recoverypositive
Recovery at or above the exceptional band for the commodity and processing route.
Why it applies: Flotation stage recovery reported at 99.50% and DMS recovery at 85.82%.
Evidence · text
“High 99.50% flotation stage recovery”
QA/QC Disclosedpositive · Story-specific tag
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: Results were subject to independent review by SGS Lakefield and a Qualified Person (Manan Paul) signed off.
Evidence · text
“reviewed and approved by Manan Paul , M.Sc., P.Eng. , Senior Metallurgist at SGS Canada, a Qualified Person”
Extracted facts
Stored fact records: 3. Some facts used in scoring do not have a stored record.
Metallurgical Results (3)
flotationCase Lake · lithiumRecovery: 78.8 %Head Grade: 1.58Head Grade Unit: %View all detailsHide details
Identity
- Project
- Case Lake
- Commodity
- lithium
- Ticker
- PWM
Test Work
- Program Status
- preliminary
- Test Type
- flotation
- Processing Route
- DMS and Flotation
- Sample
- Final Spodumene Concentrate (-12.7+0.025mm)
Recovery
- Recovery
- 78.8 %
- Recovery Basis
- actual_test
- Head Grade
- 1.58
- Head Grade Unit
- %
- Conc. Grade
- 7.2
- Conc. Grade Unit
- %
- Tailings Grade
- 0.05
- Tailings Grade Unit
- %
- Mass Pull
- 17.8 %
Lab
- Laboratory
- Nagrom the Mineral Processor
- Consultant
- SGS Lakefield
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2025-07-07T00:00:00.000Z
Reasoning: 7.20% Li2O concentrate is well above market standards of 5.5%.
Positive factors
- High grade concentrate
- High recovery
Evidence · table
“7.20”
Context: 17.8
DMSCase Lake · lithiumRecovery: 85.82 %Head Grade: 1.58Head Grade Unit: %View all detailsHide details
Identity
- Project
- Case Lake
- Commodity
- lithium
- Ticker
- PWM
Test Work
- Program Status
- preliminary
- Test Type
- DMS
- Processing Route
- DMS
- Sample
- DMS Concentrate
Recovery
- Recovery
- 85.82 %
- Recovery Basis
- actual_test
- Head Grade
- 1.58
- Head Grade Unit
- %
- Conc. Grade
- 5.24
- Conc. Grade Unit
- %
- Mass Pull
- 26.1 %
Reagents
- Reagent Notes
- Contains 0.88% Cs2O
Lab
- Laboratory
- Nagrom the Mineral Processor
- Consultant
- SGS Lakefield
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2025-07-07T00:00:00.000Z
Reasoning: Solid DMS recovery of 85.82% with 5.24% Li2O grade.
Positive factors
- High recovery
- Byproduct cesium potential
Evidence · table
“5.24”
Context: 26.1
Wet Table and Magnetic SeparationCase Lake · tantalumRecovery: 45 %Head Grade: 144Head Grade Unit: ppmView all detailsHide details
Identity
- Project
- Case Lake
- Commodity
- tantalum
- Ticker
- PWM
Test Work
- Program Status
- preliminary
- Test Type
- Wet Table and Magnetic Separation
- Processing Route
- WT and MS
- Sample
- Combined Ta Concentrate (-0.5mm)
Recovery
- Recovery
- 45 %
- Recovery Basis
- actual_test
- Head Grade
- 144
- Head Grade Unit
- ppm
- Conc. Grade
- 12508
- Conc. Grade Unit
- ppm
- Mass Pull
- 0.52 %
Lab
- Laboratory
- Nagrom the Mineral Processor
- Consultant
- SGS Lakefield
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2025-07-07T00:00:00.000Z
Reasoning: 12,508 ppm Ta is a high-grade concentrate.
Positive factors
- High grade concentrate
Evidence · table
“12508”
Context: 0.52
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.