Cooper Metals Launches Maiden Drilling at Ardmore North and Attina

Cooper Metals Readies the Drill Bit: Maiden Programs at Ardmore North and Attina Set to Begin

Cooper Metals Limited (ASX: CPM) has reported that site works and cultural heritage clearance are now complete at the Ardmore North and Attina prospects within its Mt Isa East copper-gold project in north-west Queensland, clearing the way for maiden drilling to begin. According to the ASX announcement, drilling is set to commence imminently, starting with about 1,250m of reverse circulation (RC) drilling at Ardmore North before the rig moves to Attina for a further approximately 750m.

For investors following ASX copper stocks and early-stage gold exploration in Queensland, this marks the transition from surface geochemistry to the first direct test of whether these anomalies continue at depth. Both targets sit within Cooper Metals' ~1,600sq km Mt Isa East Project (EPM 19125), the company's flagship exploration holding in the Mt Isa Inlier.

"With the field season well underway we're excited for the drill rig to arrive and to test both Ardmore North and Attina prospects. Heritage clearance is complete and earthworks are well advanced ahead of drilling. Ardmore North and Attina are both top of our list as priority drill targets. The Company is excited by recent activity in the region and the interest in copper more broadly."

— Tim Armstrong, Executive Director, Cooper Metals

Two Priority Targets Move Into Maiden Drilling

The announcement frames Ardmore North and Attina as Cooper Metals' current priority drill targets at Mt Isa East. In practical terms, maiden drilling is the first serious subsurface test of a prospect, aimed at checking whether strong rock chip and soil results reflect broader mineralisation rather than isolated surface occurrences.

The planned sequence is straightforward. Bullion Drilling's RC rig is expected to mobilise to Ardmore North first, with works there already advanced, before shifting south-west to Attina once track and pad construction begins.

For investors, the main point is timing. Cooper Metals has moved beyond early target generation and into a period where drilling results, channel sample assays and follow-up market updates may provide a clearer basis for judging the potential of these targets.

Ardmore North: A 1.5km Copper-Gold Anomaly Along the Mt Hope Corridor

How Do Surface Results Define the Target?

According to the announcement, Ardmore North lies in the southern part of the Mt Isa East Project along the Mt Hope corridor, a mineralised trend extending from Mt Colin through Wee Macgregor, Ardmore North, Mount Hope and Lady Fanny. The prospect also lies near the Fountain Range Fault, described by the company as a major north-east trending regional structure visible in geology and geophysics.

Cooper Metals stated that Ardmore North was first recognised in 2023 through regional rock chip and soil sampling. The prospect is defined by a ~1.5km long by 150m wide area of elevated gold and copper in rock chips, coincident with a north-east orientated copper anomaly in portable X-ray fluorescence, or pXRF, soil data.

Selected previously reported rock chip results include:

The company also noted the presence of multiple small pits and workings along the trend. While historical workings do not confirm economic mineralisation, they can indicate that earlier operators recognised mineralised material at surface.

What Has Earthwork Preparation Revealed?

One of the more relevant updates in the announcement is that site clearing has exposed additional geology at Ardmore North. Cooper Metals reported that drill pad earthworks revealed multiple parallel quartz vein systems containing visually identified hematite, magnetite, malachite and possible chalcopyrite, plus a separate massive ironstone with malachite.

The company emphasised that these are visual field observations only and have not been confirmed by assay. Estimated widths of these features were reported at 1m to 5m, but these remain preliminary.

That distinction matters. Visual mineral identification can help refine drill targeting, but it is not a substitute for laboratory results. Even so, the observations may strengthen the geological case for Ardmore North as a structured copper-gold system worth drill testing.

Furthermore, Cooper has taken a 96m continuous surface channel sample across the interpreted strike of the anomaly on the first drill section line. This sample has been submitted to ALS Mount Isa for analysis. Because the sample includes sub-crop and transported surface material, the results are expected to be used as supporting information rather than as a definitive measure of bedrock grade.

Attina: High-Grade Surface Sampling Near Mt Hope

Why Has Attina Emerged as One of the Strongest Anomalies in the Portfolio?

The second maiden drill target, Attina, is located 5.5km north-east of Carnaby Resources' Mt Hope Project. Cooper Metals described the prospect as a trend of gossanous quartz veins traced for up to 700m at surface, with coincident copper and gold in soils and rock chips.

A gossan is the iron-rich weathered cap that can form above sulphide mineralisation. In exploration, gossans are often watched closely because they may point to copper or gold-bearing systems below the surface.

According to the company's earlier results referenced in the announcement, 23 rock chip samples collected at Attina have returned highly anomalous copper and gold values. Cooper stated that most of those samples exceeded 1% copper, while three exceeded 1g/t gold.

Selected rock chip results include:

These are rock chip results from surface sampling, not drilling intercepts, so they should be interpreted in that context. Surface samples can identify fertility and vectors to mineralisation, but they do not establish continuity, thickness or grade at depth.

Will Drilling Confirm Whether Surface Grades Reflect a Broader System?

The announcement also notes that high-grade gold rock chips at Attina cluster to the south-west of the main copper-in-soil anomaly. That pattern may point to structural controls on mineralisation, which is often an important feature in copper-gold systems.

With heritage clearance now complete, track and drill pad construction at Attina is expected to begin within two weeks of the announcement. The planned ~750m RC program is intended as a first-pass test of the vein trend and associated geochemical anomaly.

For investors, Attina stands out because the surface grades are unusually high for an early-stage target. The key question now is whether drilling identifies meaningful widths and continuity beyond isolated rock chip values.

Understanding IOCG Targets and Why the Mt Isa Setting Matters

The announcement states that the Mt Isa Inlier is prospective for iron oxide copper gold (IOCG), iron sulphide copper gold (ISCG) and shear-hosted copper ± gold deposits. That geological setting is a central part of the exploration case at Mt Isa East.

What Is an IOCG Deposit?

An IOCG deposit is a type of mineral system where copper and gold are commonly associated with abundant iron oxides, especially hematite and magnetite. These deposits can form along regional structures where mineral-rich fluids move through the crust and alter surrounding rocks.

For non-specialist readers, a few exploration terms in this update are worth clarifying:

• RC drilling: A common first-pass drilling method that collects rock chips from depth for geological logging and assay.
• Rock chip sampling: Collection of surface rock to test for metal content and identify mineralised trends.
• pXRF soil data: Rapid field analysis of soil chemistry using a handheld X-ray device to detect metal anomalies.
• Strike length: The horizontal extent of a geological feature along its trend.
• Malachite: A green copper mineral often seen at surface where copper sulphides have weathered.

Why Do Investors Watch IOCG-Style Targets?

IOCG systems are widely watched in Australian exploration because they can host large copper-gold deposits if the right geological ingredients line up. However, early indicators such as iron oxides, gossans, copper staining and anomalous soil data are only part of the picture.

At Ardmore North, the reported hematite-magnetite-malachite veins and ironstone fit with some of the alteration features associated with IOCG-style systems. At Attina, the gossanous quartz veins and coincident copper-gold surface geochemistry may also be consistent with a mineralising fluid system.

That does not confirm an IOCG deposit is present. It does, however, explain why the upcoming drilling is important. Drilling is needed to test whether these surface signs translate into mineralisation with scale and continuity beneath cover.

What Does the Drilling Roadmap Look Like From Here?

The next steps outlined in the announcement are relatively clear, which may help investors track upcoming news flow:

1. Finish pad construction at Ardmore North
2. Mobilise the Bullion Drilling RC rig
3. Complete ~1,250m of maiden RC drilling at Ardmore North
4. Receive assays for the 96m Ardmore North channel sample
5. Begin track and pad construction at Attina within two weeks
6. Drill ~750m of maiden RC holes at Attina
7. Provide market updates as drilling progresses

This means the immediate catalyst is rig mobilisation and the start of drilling at Ardmore North, followed by assay results from both the channel sample and, later, the RC program.

Why Ardmore North and Attina Matter to Investors

The ASX update is material because it shifts Cooper Metals into an active drilling phase at two of its highest-ranked Mt Isa East targets. Several elements stand out.

First, both targets are supported by coherent surface anomalies, not just isolated high-value samples. Ardmore North covers a 1.5km strike length, while Attina includes a 700m vein trend and multiple elevated copper-gold rock chips.

Second, the programs are focused and relatively modest in scale, with a combined planned total of about 2,000m. That makes them first-pass tests designed to quickly assess whether follow-up drilling is justified.

Third, the setting provides important regional context. Ardmore North sits along the Mt Hope corridor, with the company noting nearby projects held by Carnaby Resources and Austral Resources. Cooper also includes the appropriate caution that nearby or third-party results are not necessarily indicative of mineralisation on its own tenements.

In addition, the company's broader portfolio gives additional project exposure outside these two targets. Beyond Mt Isa East, Cooper Metals also holds the Gooroo copper-gold project in Western Australia and the Pyramid gold project in Queensland.

For shareholders and potential investors, the main takeaway is straightforward: the quality of the surface geochemistry has now earned a drill test. The value of these prospects will depend on what the first holes show.

A Near-Term Test for Cooper Metals at Mt Isa East

Cooper Metals is entering a more active stage at Ardmore North and Attina, with heritage clearance and site preparation completed and maiden drilling set to begin imminently. The planned work will test two copper-gold targets that have already produced standout surface results, including up to 14.45% copper at Ardmore North and 52.8g/t gold plus 12.35% copper at Attina from previously reported rock chip sampling.

The investment relevance now turns on execution and results. If the upcoming RC drilling confirms mineralisation continuity beneath these surface anomalies, it may support additional drilling and further target ranking across the wider Mt Isa East Project. If results are weaker than surface sampling suggests, the programs should still provide valuable geological information for refining Cooper's exploration model in one of Australia's better-known copper-gold districts.

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