# US Elemental Announces Highly Encouraging Magnesium Testwork Results from the McDermitt Lithium Project

Canonical Atlas analysis: https://atlas-staging.minestarters.com/news/us-elemental-announces-highly-encouraging-magnesium-testwork-results-from-the-mc--7cb5a4b1-1e1c-483e-806a-29bfb40e8d13

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: Jindalee Lithium Limited

- Ticker: JLL

- Exchange: Unavailable

- Region: Oregon

- Primary commodity: Magnesium

- Secondary commodities: Lithium

- Document categories: Metallurgy

- Extracted: 2026-08-24 20:31:58 UTC

Narrative sentiment: 0.60 · Bullish

## Minestarters Atlas summary

US Elemental \(a subsidiary of Jindalee Lithium\) has successfully demonstrated a proof-of-concept for producing high-purity magnesium oxide \(MgO\) from the McDermitt Lithium Project's magnesium-rich waste stream. Testwork by Kemetco Research Inc. achieved MgO grades exceeding 93% and high conversion rates, offering a potential strategic byproduct to strengthen U.S. magnesium supply chains.

Reasoning: Successful testwork demonstrated the ability to convert a waste stream \(magnesium sulphate\) into high-purity magnesium oxide, potentially creating a significant byproduct credit for the McDermitt project.

- Positive factor: Proof of concept for magnesium byproduct

- Positive factor: High purity MgO produced \(>93%\)

- Positive factor: High conversion efficiency \(99.95%\)

- Positive factor: Strategic US supply chain alignment

- Negative factor: No commercial viability established

- Negative factor: Requires further engineering and scalability studies

Facts used in scoring: 2

## 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 high-value product.

Evidence · text

> convert that stream into MgO, an important feedstock for primary magnesium metal production

## Extracted facts

Stored fact records: 2. Some facts used in scoring do not have a stored record.

## Metallurgical Results (2)

### Fact 1

[Link to this fact](https://atlas-staging.minestarters.com/news/us-elemental-announces-highly-encouraging-magnesium-testwork-results-from-the-mc--7cb5a4b1-1e1c-483e-806a-29bfb40e8d13#fact-metallurgical-facts-0)

magnesium

#### Identity

- Commodity: magnesium
- Ticker: JLL

#### Test Work

- Sample: MgO produced via carbonate precipitation and calcination

#### Recovery

- Recovery: 93.4 %
- Recovery Basis: actual\_test
- 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%.

- Positive factor: High purity grade

Evidence · text

> Both approaches produced MgO grades greater than 93%, with the highest grade reaching 93.4% MgO

### Fact 2

[Link to this fact](https://atlas-staging.minestarters.com/news/us-elemental-announces-highly-encouraging-magnesium-testwork-results-from-the-mc--7cb5a4b1-1e1c-483e-806a-29bfb40e8d13#fact-metallurgical-facts-1)

magnesium

#### Identity

- Commodity: magnesium
- Ticker: JLL

#### Test Work

- Sample: MgO conversion in the calciner

#### Recovery

- Recovery: 99.95 %
- Recovery Basis: actual\_test

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-24T00:00:00.000Z

Reasoning: The conversion rate in the calciner was reported as very high at 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%

## 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.