# US Elemental Announces Highly Encouraging Magnesium Testwork Results from the McDermitt Lithium Project Canonical Atlas analysis: https://atlas-extractions.minestarters.com/news/us-elemental-announces-highly-encouraging-magnesium-testwork-results-from-the-mc--4363b6c0-6be2-49f0-8332-65011df6a9aa Original source: https://www.globenewswire.com/news-release/2026/08/24/3350110/0/en/us-elemental-announces-highly-encouraging-magnesium-testwork-results-from-the-mcdermitt-lithium-project.html Publisher: globenewswire Original announcement: 2026-08-24T00:00:00.000Z Analysis by Minestarters Atlas Atlas analysis published: Unknown date Atlas analysis updated: Unknown date - Company: US Elemental Inc. - Ticker: ULIT - Exchange: Unavailable - Region: Oregon - Primary commodity: Magnesium - Secondary commodities: Lithium - Document categories: Metallurgy - Extracted: 2026-09-12 02:16:01 UTC Narrative sentiment: 0.60 · Bullish ## Minestarters Atlas summary US Elemental \(via HiTech Minerals\) has successfully demonstrated a technical pathway to produce high-purity magnesium oxide \(MgO\) from magnesium sulphate brine at the McDermitt Lithium Project. Testwork showed MgO grades exceeding 93% and very high calciner conversion rates of 99.95%. While commercially unproven, the results establish a proof of concept for a potential high-value magnesium byproduct. Reasoning: Successful technical proof of concept to convert a magnesium waste stream into a high-purity byproduct \(MgO\), potentially adding value to the McDermitt Lithium Project. - Positive factor: Proof of concept for converting waste stream to high-purity MgO - Positive factor: High conversion rates in calciner \(99.95%\) - Positive factor: High product grade \(>93%\) - Positive factor: Strategic alignment with US critical minerals supply chain - Negative factor: No commercial viability or economic benefit established - Negative factor: Requires further engineering and scalability studies Facts used in scoring: 3 ## Classification and evidence **Byproduct Commodity** Polarity: neutral Definition: The tested commodity is a byproduct rather than the primary economic driver. Why it applies: The testwork focuses on converting a magnesium stream previously treated as waste into a potential high-value byproduct. Evidence · text > Establishing an Initial Proof of Concept for a Potential Higher-Value By-Product at McDermitt **Multi-Domain Tested** Polarity: positive Definition: Variability across ore domains \(oxide, transition, fresh\) has been addressed. Why it applies: 2 distinct composites were tested ## Extracted facts Stored fact records: 3. Some facts used in scoring do not have a stored record. ## Metallurgical Results (3) ### calcination [Link to this fact](https://atlas-extractions.minestarters.com/news/us-elemental-announces-highly-encouraging-magnesium-testwork-results-from-the-mc--4363b6c0-6be2-49f0-8332-65011df6a9aa#fact-metallurgical-facts-0) McDermitt Lithium Project · magnesium #### Identity - Project: McDermitt Lithium Project - Commodity: magnesium - Region: oregon - Reported Region: Oregon - Ticker: ULIT #### Test Work - Program Status: preliminary - Test Type: calcination - Processing Route: adding carbonates to the brine to precipitate magnesium carbonate followed by a calcination stage - Sample: MgO produced via carbonate precipitation and calcination #### Recovery - Recovery: 93.4 % - Conc. Grade: 93.4 - Conc. Grade Unit: % #### Lab - Laboratory: Kemetco Research Inc. #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-24T00:00:00.000Z Reasoning: Achieved a high-purity MgO grade of 93.4% via a carbonate precipitation route. - Positive factor: High product grade achieved Evidence · text > Both approaches produced MgO grades greater than 93%, with the highest grade reaching 93.4% MgO #### Tags used in scoring **Byproduct Commodity** Polarity: neutral Definition: The tested commodity is a byproduct rather than the primary economic driver. Why it applies: the release describes a byproduct credit ### thermal conversion [Link to this fact](https://atlas-extractions.minestarters.com/news/us-elemental-announces-highly-encouraging-magnesium-testwork-results-from-the-mc--4363b6c0-6be2-49f0-8332-65011df6a9aa#fact-metallurgical-facts-1) McDermitt Lithium Project · magnesium #### Identity - Project: McDermitt Lithium Project - Commodity: magnesium - Region: oregon - Reported Region: Oregon - Ticker: ULIT #### Test Work - Program Status: preliminary - Test Type: thermal conversion - Processing Route: crystallizing hydrated MgSO4 from the brine, followed by thermal conversion to anhydrous MgSO4 ahead of a reductive calcination stage - Sample: MgO produced via crystallization and thermal conversion #### Recovery - Conc. Grade: 93.4 - Conc. Grade Unit: % #### Lab - Laboratory: Kemetco Research Inc. #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-24T00:00:00.000Z Reasoning: Achieved high-purity MgO grades through the crystallization and thermal conversion route. - Positive factor: High product grade achieved Evidence · text > Both approaches produced MgO grades greater than 93%, with the highest grade reaching 93.4% MgO #### Tags used in scoring **Byproduct Commodity** Polarity: neutral Definition: The tested commodity is a byproduct rather than the primary economic driver. Why it applies: the release describes a byproduct credit ### calcination [Link to this fact](https://atlas-extractions.minestarters.com/news/us-elemental-announces-highly-encouraging-magnesium-testwork-results-from-the-mc--4363b6c0-6be2-49f0-8332-65011df6a9aa#fact-metallurgical-facts-2) McDermitt Lithium Project · magnesium #### Identity - Project: McDermitt Lithium Project - Commodity: magnesium - Region: oregon - Reported Region: Oregon - Ticker: ULIT #### Test Work - Program Status: preliminary - Test Type: calcination - Processing Route: calcination - Sample: calciner conversion efficiency #### Recovery - Recovery: 99.95 % #### Lab - Laboratory: Kemetco Research Inc. #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-24T00:00:00.000Z Reasoning: The calcination stage demonstrated exceptional conversion efficiency of 99.95%. - Positive factor: Extremely high conversion efficiency Evidence · text > conversion in the calciner for both approaches was very high, with values reaching 99.95% #### Tags used in scoring **Byproduct Commodity** Polarity: neutral Definition: The tested commodity is a byproduct rather than the primary economic driver. Why it applies: the release describes a byproduct credit ## 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.