Barkly Rare Earths Submits First Samples From 10,000 m Drilling Campaign

Barkly Rare Earths First Assay Samples From 10,000 m Drilling Campaign

Barkly Rare Earths Limited (ASX: BAK) has moved its flagship Barkly Project into the next stage of its Phase 1 resource drilling programme, with the first sample batch from the planned 10,000 m campaign now delivered to ALS Geochemistry in Brisbane for analysis. This marks the point where drilling activity begins converting into assay data intended to support a Mineral Resource update later in 2026.

The programme is targeting shallow mineralisation around the company's existing 40 Mt @ 2,100 ppm Total Rare Earth Oxide (TREO) Inferred Mineral Resource, which contains 82,000 tonnes of TREO and includes 710 ppm Magnet Rare Earth Oxide (MREO). Furthermore, Barkly reported that mineralisation remains open in all directions, meaning the current drilling is aimed at testing extensions beyond the known resource footprint.

"It was great to see the first samples from our 10,000 m drilling programme delivered to ALS for analysis. This is where the campaign moves from metres drilled to assay results, and we expect further sample batches to follow as drilling continues. The objective is clear: test the shallow mineralisation around our existing 40 Mt Inferred Resource and generate the data intended to support a resource update later this year."

— Craig Wright, Managing Director, Barkly Rare Earths

What Is the Drilling Programme Targeting?

In the update, Barkly said the majority of the programme's approximately 400 shallow holes are planned within the area it refers to as the Immediate Zone. These holes are expected to average about 25 m in depth and are designed to test shallow mineralisation surrounding and adjacent to the existing Inferred Mineral Resource.

That makes this a boundary-growth style drilling campaign rather than a deep conceptual test. For investors, that distinction matters. Drilling close to an existing resource can provide data that may support expansion of the current Mineral Resource Estimate, subject to assay results and geological continuity.

The key programme parameters outlined by the company are summarised below.

According to the announcement, the early stage of the programme is focused on sample quality, drilling efficiency, and adjusting procedures for the ground conditions encountered. That is an operational detail, but it can be relevant when a campaign involves a large number of shallow holes, as consistency in sample collection and preparation affects the usefulness of the final dataset.

Understanding the Existing Barkly Mineral Resource

The current resource remains the reference point for the campaign. Barkly's existing Mineral Resource is classified as Inferred under the JORC Code (2012), which is the lowest confidence category in the JORC system and generally requires more drilling before higher-confidence categories can be defined.

The existing Barkly resource metrics, as referenced in the ASX announcement and previous disclosure, are as follows:

The resource also contains what the company describes as a high terbium component. In rare earth projects, the distribution of individual rare earth elements matters as much as overall grade, because certain magnet-related elements attract more commercial attention than bulk light rare earths.

For investors assessing rare earth projects, it is not enough to look at TREO alone. The composition within that total can materially affect project quality, downstream processing interest, and how the market views development potential.

Education Corner: What MREO Means and Why Investors Follow It

What is Magnet Rare Earth Oxide?

Magnet Rare Earth Oxide (MREO) refers to the combined oxide content of neodymium, praseodymium, terbium, and dysprosium. These are the rare earth elements most closely associated with high-performance permanent magnets used in sectors such as electric vehicles, wind turbines, industrial motors, robotics, and some defence applications.

By contrast, Total Rare Earth Oxide (TREO) includes the full basket of rare earth oxides in a deposit. A project can have a large TREO number but still be less commercially attractive if much of that total is made up of lower-value elements.

At Barkly, the reported grades of 710 ppm MREO within 2,100 ppm TREO imply an MREO ratio of about 34%. That is a useful figure because it shows a relatively meaningful proportion of the total rare earth content is linked to magnet-related elements.

Key Terms for Non-Specialist Readers

For non-specialist readers, the terms below are worth knowing:

Why does this matter in practice? Because rare earth project quality often depends on a combination of grade, mineralogy, metallurgical response, and element distribution. A deposit with a favourable magnet-element mix and low levels of penalty elements such as uranium and thorium may be viewed differently from a deposit with similar TREO grade but a less attractive composition.

Laboratory Work and the Assay Process Explained

In the drilling update, Barkly said the samples sent to ALS will be pulverised and prepared by lithium borate flux fusion before acid dissolution and multi-element analysis using ICP-MS and ICP-AES. The purpose is straightforward: the laboratory breaks the sample down into a form that allows accurate measurement of the elements it contains.

In rare earth exploration, this analytical process is essential because grades are often expressed in relatively low concentrations, so precision is important. The use of an ISO/IEC 17025-accredited laboratory is also relevant, as accreditation indicates the laboratory works under recognised quality standards, helping support the reliability and repeatability of assay data reported to the market.

This stage does not provide results by itself, but it starts the assay pipeline. As more sample batches are submitted and processed, investors can expect a sequence of exploration results, subject to laboratory turnaround times and the progress of drilling.

What Comes Next in Barkly's 2026 Exploration Schedule?

The company set out a series of next steps in the announcement, with multiple workstreams running through the second half of calendar 2026. The Mineral Resource update remains the central catalyst, but assay results and metallurgical work are also important in building the broader project picture.

The company's stated exploration timetable is outlined below.

What Is Geo-Metallurgical Test Work?

The reference to geo-metallurgical test work is worth clarifying. Geo-metallurgy links geology with processing behaviour. In simple terms, it examines how different parts of a deposit may respond to extraction and upgrading methods. For a rare earth project, that work may help determine whether mineralisation is consistent enough to support future processing assumptions.

At the separate Buntine Project, Barkly noted exposure of polymetallic mineralisation along a 9 km strike length and geological equivalence to the Barney Creek Formation that hosts the McArthur River Pb-Zn deposit. That provides a second exploration line alongside Barkly, although the current ASX update is primarily focused on the rare earth drilling campaign.

Why This Drilling Milestone Matters to Investors

The first sample batch reaching the laboratory is a procedural step, but it carries practical importance because it starts the period where drilling metres may convert into market-reportable results. Until assays are returned, a drilling campaign mainly reflects intent and activity. Once assays begin arriving, investors can start assessing whether the programme is meeting its resource expansion objective.

Several aspects of the Barkly Project give context to this stage:

• Existing scale: The current 40 Mt Inferred Resource gives the project an established base rather than a purely conceptual target.
• Open mineralisation: Barkly reported that mineralisation remains open in all directions, which supports the rationale for resource expansion drilling.
• Shallow drilling profile: With holes averaging ~25 m, the programme is aimed at near-surface mineralisation, which can be a cost-effective way to test for lateral growth.
• Metallurgical indicators: Previous disclosure referenced 74.0% MREO extraction from initial leach tests and a 29,000 ppm TREO beneficiation concentrate.
• Project ownership: The Barkly Project is held 100% by the company across a 5,030 km² tenement package.

However, the current update does not include assay results, resource growth figures, or revised economics. The significance of this stage therefore rests on what it may lead to, rather than on a completed outcome. That distinction is important in early-stage resource investing.

Why Barkly Rare Earths Is Worth Monitoring Through Q3 and Q4 2026

According to the drilling update, Barkly is entering a period of expected assay-driven newsflow across its Barkly and Buntine projects. The planned Q4 2026 Mineral Resource update, subject to drilling and assay progress, is likely to be the main event investors watch.

In addition, several other developments could shape market interest from here:

• Progressive assay releases from the Phase 1 drilling campaign
• Evidence of continuity or extension around the existing Inferred Resource
• Geo-metallurgical and extraction test work that adds to understanding of processing characteristics
• Buntine exploration results as a separate catalyst stream in Q3 2026

For investors focused on ASX rare earth stocks, Barkly's current position is defined by an existing JORC-compliant Inferred Resource, a shallow expansion drilling programme, and a project profile that includes a relatively high proportion of magnet rare earth oxides. The next phase will depend on whether assay data supports the company's goal of advancing a larger resource base later in the year.

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