# Barkly Rare Earths toasts 99pc MREO extraction as testwork guru hired

Canonical Atlas analysis: https://atlas-staging.minestarters.com/news/barkly-rare-earths-toasts-99pc-mreo-extraction-as-testwork-guru-hired--a2fc024c-e03c-473c-becb-b74fb4734ed2

Original source: https://stockhead.com.au/resources/barkly-rare-earths-toasts-99pc-mreo-extraction-as-testwork-guru-hired/

Publisher: stockhead

Original announcement: 2026-08-31T04:37:23.000Z

Analysis by Minestarters Atlas

Atlas analysis published: Unknown date

Atlas analysis updated: Unknown date

- Company: Barkly Rare Earths

- Ticker: BAK

- Exchange: Unavailable

- Region: Northern Territory

- Primary commodity: Rare earths

- Secondary commodities: Yttrium, Phosphorus

- Document categories: Metallurgy

- Extracted: 2026-08-31 05:03:16 UTC

Narrative sentiment: 0.80 · Bullish

## Minestarters Atlas summary

Barkly Rare Earths reported a technical breakthrough at its Northern Territory project, achieving 99% magnet rare earth oxide \(MREO\) extraction using a caustic conversion and HCl leach process. The test also demonstrated effective phosphorus separation \(92% extraction to the conversion solution\). The company has appointed Lu Zhang as an independent metallurgical consultant to oversee further flowsheet optimization.

Reasoning: Significant technical improvement in extraction efficiency \(99% vs 74% previously\) using a new caustic conversion pathway, though results are based on a very small sample size.

- Positive factor: High MREO extraction rate \(99%\)

- Positive factor: Effective phosphorus separation \(92%\)

- Positive factor: Appointment of independent metallurgical consultant

- Negative factor: Small scale sighter test \(75.45g charge\)

- Negative factor: Single composite sample used

- Negative factor: Head reconciliation limitations noted

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: 99% MREO extraction is exceptional for this stage of testing.

Evidence · text

> achieving 99% magnet rare earth oxide extraction

**Bench Scale Only**

Polarity: negative

Definition: Only preliminary bench tests completed — no locked-cycle or pilot work.

Why it applies: The test used a very small 75.45g charge.

Evidence · text

> The sighter test used a 75.45g charge from composite sample 24C001

## Extracted facts

Stored fact records: 3. Some facts used in scoring do not have a stored record.

## Metallurgical Results (3)

### sighter test

[Link to this fact](https://atlas-staging.minestarters.com/news/barkly-rare-earths-toasts-99pc-mreo-extraction-as-testwork-guru-hired--a2fc024c-e03c-473c-becb-b74fb4734ed2#fact-metallurgical-facts-0)

rare\_earths

#### Identity

- Commodity: rare\_earths
- Ticker: BAK

#### Test Work

- Program Status: preliminary
- Test Type: sighter test
- Processing Route: caustic conversion at 150 degrees for two hours, separation and washing, and HCl leaching at 50 degrees for two hours to a target pH of 1
- Sample: composite sample 24C001, 75.45g charge

#### Recovery

- Recovery: 99 %
- Recovery Basis: actual\_test

#### Lab

- Laboratory: Nagrom

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-31T00:00:00.000Z

Reasoning: 99% extraction is a substantial improvement over the 74% achieved in previous conventional leaching tests.

- Positive factor: 99% extraction rate

- Negative factor: Small scale \(75.45g charge\)

- Negative factor: Single composite

Evidence · text

> achieving 99% magnet rare earth oxide extraction during sighter testing

### sighter test

[Link to this fact](https://atlas-staging.minestarters.com/news/barkly-rare-earths-toasts-99pc-mreo-extraction-as-testwork-guru-hired--a2fc024c-e03c-473c-becb-b74fb4734ed2#fact-metallurgical-facts-1)

yttrium

#### Identity

- Commodity: yttrium
- Ticker: BAK

#### Test Work

- Program Status: preliminary
- Test Type: sighter test
- Processing Route: caustic conversion and HCl leach
- Sample: composite sample 24C001, 75.45g charge

#### Recovery

- Recovery: 94 %
- Recovery Basis: actual\_test

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-31T00:00:00.000Z

Reasoning: 94% extraction of yttrium to the acid leach solution.

- Positive factor: High yttrium extraction

Evidence · text

> 94% extraction of yttrium

### sighter test

[Link to this fact](https://atlas-staging.minestarters.com/news/barkly-rare-earths-toasts-99pc-mreo-extraction-as-testwork-guru-hired--a2fc024c-e03c-473c-becb-b74fb4734ed2#fact-metallurgical-facts-2)

phosphorus

#### Identity

- Commodity: phosphorus
- Ticker: BAK

#### Test Work

- Program Status: preliminary
- Test Type: sighter test
- Processing Route: caustic conversion
- Sample: composite sample 24C001, 75.45g charge

#### Recovery

- Recovery: 92 %
- Recovery Basis: actual\_test

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-08-31T00:00:00.000Z

Reasoning: 92% of phosphorus reported to the caustic conversion solution, which simplifies future purification.

- Positive factor: Effective phosphorus separation

Evidence · text

> 92% of phosphorus reported to the caustic conversion solution

## 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.