White Cliff Minerals Danvers Copper System Expands to 4.75km

White Cliff Minerals Expands Danvers Copper System to 4.75km With High-Grade Results

White Cliff Minerals (ASX: WCN; OTCQB: WCMLF) has reported drilling results confirming that the White Cliff Minerals Danvers copper system expands to 4.75km with high-grade results stretching across the interpreted Teshierpi structural corridor at its Rae Copper Project in Nunavut, Canada. This represents a 480% expansion from the approximately 820 metres of strike originally tested around the Danvers 1 deposit during the 2025 drilling program.

Step-out holes placed progressively further northeast of the Danvers 1 core continue to return copper grades that the company describes as economically significant, and the geological model underpinning the system is becoming increasingly predictive. White Cliff is now fast-tracking infill drilling with the aim of converting this expansive trend into a coherent mineralisation model, ahead of evaluation for a JORC Exploration Target.

Key Assay Results at a Glance

According to the announcement, the latest batch of assay results demonstrates that high-grade copper is not confined to the original Danvers 1 core zone. Results from widely spaced step-out holes include:

The standout result reported is DAN26031, situated more than 1.1km northeast of DAN26027 and roughly 1.3km from the Danvers 1 core, which returned 3.0m at 3.96% copper and 18g/t silver. Management has pointed to this intercept as reinforcing the potential of the corridor well beyond the original discovery zone.

DAN26035, the most distal hole reported to date at more than 2.5km northeast of the Danvers 1 core, still intersected 24.75 metres of copper-bearing mineralisation, including a 5.0 metre sub-interval grading 1.21% copper. The persistence of mineralisation at this distance from the known core is a notable feature of the current data set.

"The latest assays have transformed the scale of Danvers 1. In a single season, drilling has expanded the copper-bearing trend from 820m to 4.75km, with strong grades returned in step-outs progressively farther northeast. Results of 17m @ 1.41% Cu and 12g/t Ag and 14.5m @ 1.49% Cu, including 3m @ 3.96% Cu and 18g/t Ag, demonstrate that high-grade copper is not confined to the original Danvers 1 core," commented Managing Director Troy Whittaker.

One More Hole to Watch: DAN26041 Assays Pending

Among the most anticipated results still outstanding is DAN26041, collared between DAN26027 and DAN26024, approximately 410 metres northeast of Danvers 1. Logging of this hole identified more than 40 metres of copper-sulphide bearing core, including coarse-grained chalcocite and bornite observed within a mineralised fault breccia.

Assays for this interval remain pending and are expected in the coming weeks. Visual estimates of sulphide abundance are not a substitute for laboratory assay results, and the company has cautioned that such observations should not be relied upon as a proxy for grade. Nonetheless, the presence of abundant visible copper sulphide across this width has been noted as a positive indicator ahead of formal results.

Understanding the Geology: What Is a Fault Breccia and Why Does It Matter?

Fault breccia is a term investors following White Cliff Minerals will encounter repeatedly. It describes a zone of fragmented rock created by grinding and fracturing along a geological fault plane. In copper systems such as Danvers, these zones are significant because the spaces between broken rock fragments create pathways for copper-bearing fluids to migrate through and deposit high-grade mineralisation.

At Danvers 1 and Danvers 3, the highest grades reported to date have been found in well-developed fault breccias, where mineralised fluids have cemented rock fragments together with copper sulphides such as chalcocite and bornite.

Furthermore, according to the company, the width, continuity and grade of the system appear linked to how well-developed the fault breccia is at any given point. The geological team has identified a relationship whereby wider magnetic anomalies correspond to broader fault breccias and, in turn, higher-grade copper. This relationship is now being applied to prioritise infill drilling targets along the 4.75km corridor.

Glossary of Key Terms

• Chalcocite / Bornite / Chalcopyrite are copper sulphide minerals, with chalcocite and bornite generally associated with higher-grade mineralisation
• Teshierpi structural corridor refers to the regional fault zone that hosts the Danvers copper system
• Magnetic low is a geophysical signature that, at Danvers, correlates with the host fault structure and helps guide drill targeting
• JORC Exploration Target is a preliminary estimate of the potential size and grade range of a mineralised system, distinct from and preceding a formal JORC Mineral Resource estimate
• Drilled width refers to the length of mineralisation intersected along the drill hole path; true width may differ and requires further work to determine
• Strike describes the horizontal direction or trend of a geological structure or mineralised zone

What the Geological Model Is Telling the Exploration Team

One of the more important outcomes of this drilling program, beyond the assay results themselves, is the increasingly predictive geological framework the company is building to guide future targeting. Key observations from oriented diamond core and structural analysis, as outlined in the announcement, include:

• Danvers 1 sits on a southeastern splay of the regional Teshierpi Fault, occupying a distinctive magnetic low that can be traced to the northeast
• Where the magnetic signature widens, drilling has encountered more developed fault breccias, the same style hosting the highest grades at Danvers 1 and Danvers 3
• In the northeastern extension zone, the host structure narrows, and mineralisation transitions toward a vein-hosted style with chalcocite and bornite in planar quartz-carbonate veins, still returning solid grades but of a different character to the breccia-dominant core
• Consistent magnetic signatures between reported drill holes support continuity of the host structure along the 4.75km corridor
• Infill drilling will test where the corridor widens and where breccia development may intensify, targets considered most likely to combine width, grade and tonnage potential

Infill Drilling Fast-Tracked: From Regional Discovery to Resource Definition

White Cliff has moved to capitalise on the expanding footprint, with infill drilling along the northeastern trend fast-tracked and scheduled to commence within weeks. According to the announcement, the immediate objectives are to:

1. Infill the wide-spaced Phase 1 regional drill holes to establish geological continuity and grade distribution along the 4.75km corridor
2. Refine controls on higher-grade breccia development using oriented core data to sharpen drill targeting
3. Support evaluation of a JORC Exploration Target, laying groundwork for potential future resource-definition drilling
4. Test strike and depth extensions across Danvers 1, while expanding known mineralisation at Danvers 2, Danvers 3 and Danvers 4
5. Assess analogous structural and geophysical targets across the wider Teshierpi Fault Zone, where several untested zones with similar signatures remain

Current drill spacing along the northeastern trend is described as regional in nature, ranging between 300 and 670 metres between holes. Closing this spacing through infill drilling is identified as the critical next step toward establishing the mineralisation continuity required for any future resource estimation.

The Broader Rae Copper Project: A Growing System

The White Cliff Minerals Danvers copper system expands to 4.75km as part of a larger, highly active project. White Cliff's Rae Copper Project in the Kitikmeot region of Nunavut, Canada, covers 1,228 square kilometres across 93 mineral claims and one mineral lease, with several concurrent exploration fronts under way.

The Hulk deposit is, furthermore, developing into a district-scale sediment-hosted copper system, with the interpreted mineralised footprint extending to approximately 6.3 square kilometres following 2026 drilling that pushed mineralisation 3.7km east of the 2025 discovery hole.

Metallurgy De-Risks the Path Forward

A key consideration for any copper discovery is whether the mineralisation can be processed economically. White Cliff has previously reported metallurgical test work at Danvers, which returned the following results, according to the company's disclosures:

• Greater than 95% copper recovery
• Greater than 93% silver recovery
• Achieved via conventional flotation processing
• Producing concentrate grades of approximately 40% Cu and 150g/t Ag
• No deleterious elements identified in concentrates

These results, produced through test work conducted by Sepro Laboratories on samples from drillhole DAN25008, indicate that, subject to resource definition, the Danvers mineralisation may be amenable to standard processing methods. Consequently, this removes a degree of technical uncertainty at this relatively early stage of exploration.

Investment Thesis: Why Danvers Warrants Attention

White Cliff Minerals is progressing a systematic exploration program that has rapidly expanded the known scale of the Danvers copper system. Several factors underpin the current investment narrative.

Scale has expanded quickly. A single drilling season has grown the known mineralised trend from 820 metres to 4.75 kilometres, an increase the company describes as 480%. Step-out holes at distances where grades might typically be expected to diminish are continuing to return high-grade intersections.

Grade appears to be holding at distance. DAN26031, more than 1.3km from the core, returned 3.0m at 3.96% copper and 18g/t silver. DAN26035, at more than 2.5km, still returned 5.0m at 1.21% copper. These figures suggest economically relevant grades persisting at regional scale, though further drilling is required to confirm continuity.

The geological model is becoming more predictive. The company has identified a repeatable relationship between magnetic signature, structural architecture, breccia development and grade, which it says is improving the targeting precision of the infill program.

Multiple value drivers exist across the project. Danvers 1, 2, 3 and 4 are all advancing, alongside the expanding Hulk sediment-hosted copper system, providing exposure to several discovery fronts within a single large tenure package.

Metallurgy has been addressed early. Reported processing recoveries above 95% for copper via conventional flotation remove a degree of technical uncertainty at this stage of exploration.

The project sits in an established mining jurisdiction. The Rae Copper Project is located in Nunavut, Canada, and the company holds the permits required for its current exploration activities, including a Type B water licence and a Class A Land Use Permit.

Why Investors Should Follow White Cliff Minerals

White Cliff Minerals has moved from an initial copper discovery to systematically delineating what the company describes as a potentially large-scale, high-grade copper system across a 4.75km corridor, with multiple analogous zones yet to be tested.

The coming weeks are expected to bring several catalysts, including:

• Assays from DAN26041, the hole with more than 40 metres of visible copper sulphide, due imminently
• Infill drilling commencing along the northeastern trend to establish continuity
• Ongoing depth and strike extension drilling at Danvers 3
• Continued drilling at Hulk, vectoring toward the higher-grade bornite-rich core of the sediment-hosted system
• Evaluation of a JORC Exploration Target as geological confidence builds

"White Cliff Minerals has established a copper system at Danvers now confirmed over 4.75km of strike, with high grades reported at considerable distance from the original discovery zone. A geological model guiding infill targeting, together with several near-term assay and drilling catalysts, positions the company as one warranting continued attention from copper-focused investors."

Ready to Dig Deeper Into White Cliff Minerals' Expanding Copper Discovery?

With the Danvers copper system now confirmed across 4.75km of strike, high-grade results continuing to emerge at distance, and a series of near-term drilling and assay catalysts on the horizon, White Cliff Minerals (ASX: WCN) is advancing one of the more compelling copper exploration stories on the ASX. To learn more about the Rae Copper Project, the company's broader exploration portfolio, and how to follow its progress as a potential investor, visit the official White Cliff Minerals website at wcminerals.com.au.