# HIGH-GRADE SPODUMENE AND TANTALUM CONCENTRATES CONFIRMED AT CASE LAKE Canonical Atlas analysis: https://atlas-staging.minestarters.com/news/high-grade-spodumene-and-tantalum-concentrates-confirmed-at-case-lake--3650bb30-ad32-4b34-8a53-52a6ab27b52e Original source: https://money.tmx.com/en/quote/PWM/news/5629284417269230/high-grade-spodumene-and-tantalum-concentrates-confirmed-at-case-lake Publisher: tmx Original announcement: 2025-07-07T12:00:00.000Z Analysis by Minestarters Atlas Atlas analysis published: Unknown date Atlas analysis updated: Unknown date - 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 Narrative sentiment: 0.90 · Bullish ## Minestarters Atlas 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 factor: High-grade spodumene concentrate \(7.20% Li2O\) - Positive factor: High flotation recovery \(99.50%\) - Positive factor: Low iron impurities \(0.66%\) - Positive factor: Successful tantalum recovery \(12,508 ppm\) - Positive factor: Multi-element potential \(Li, Ta, Cs\) 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: Flotation stage recovery reported at 99.50% and DMS recovery at 85.82%. Evidence · text > High 99.50% flotation stage recovery **QA/QC Disclosed** Polarity: positive Story-specific tag Definition: 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) ### flotation [Link to this fact](https://atlas-staging.minestarters.com/news/high-grade-spodumene-and-tantalum-concentrates-confirmed-at-case-lake--3650bb30-ad32-4b34-8a53-52a6ab27b52e#fact-metallurgical-facts-0) Case Lake · lithium #### 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 factor: High grade concentrate - Positive factor: High recovery Evidence · table > 7.20 Context: 17.8 ### DMS [Link to this fact](https://atlas-staging.minestarters.com/news/high-grade-spodumene-and-tantalum-concentrates-confirmed-at-case-lake--3650bb30-ad32-4b34-8a53-52a6ab27b52e#fact-metallurgical-facts-1) Case Lake · lithium #### 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 factor: High recovery - Positive factor: Byproduct cesium potential Evidence · table > 5.24 Context: 26.1 ### Wet Table and Magnetic Separation [Link to this fact](https://atlas-staging.minestarters.com/news/high-grade-spodumene-and-tantalum-concentrates-confirmed-at-case-lake--3650bb30-ad32-4b34-8a53-52a6ab27b52e#fact-metallurgical-facts-2) Case Lake · tantalum #### 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 factor: 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.