Rae Copper Project<\/h1>\n<\/div><\/div>Hulk Sedimentary Prospect<\/h2>\n<\/h1>\n<\/div><\/div><\/i> Nunavut, Canada<\/p>\n<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>Sedimentary-Hosted Copper \u2013 Hulk & Stark<\/h3><\/div><\/div>Beyond Danvers, Rae hosts extensive Proterozoic Rae Group sedimentary basins of the type that host the world\u2019s largest copper deposits. This is a separate, Tier-1-scale exploration play targeting basin-hosted copper across tens of kilometres of strike.<\/p>\n
The maiden diamond hole into the sediment targets, STK25001, confirmed copper mineralisation both above and below the targeted redox boundary \u2013 validating the geological model and providing strong vectors for follow-up drilling.<\/p>\n<\/div><\/div><\/div>
![](\"https:\/\/wcminerals.com.au\/wcminerals\/wp-content\/uploads\/2026\/07\/HulkProspectPhotoCropped.jpg\")
<\/a><\/span><\/div><\/div><\/div><\/div><\/div>Maiden Drilling<\/h4>\n<\/div>- <\/i><\/span>2026 drilling now underway with first assays expected from August 2026<\/b><\/div><\/li>
- <\/i><\/span>\n
First results from the diamond drillhole targeting sedimentary hosted copper at Rae confirms sediment hosted copper mineralisation:
\n– STK25001 returned assays of 7m @ 0.4% Cu, from 177m and 3.5m @ 7.2% Cu (from 287m) in the basement below; and
\n– STK25003, ~500m south returned 25m @ 0.6% Cu, from 240m<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
Both holes confirm copper adjacent to sediment\u2013basement unconformity<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
High grade copper veining in the basement indicates significant volumes of copper rich fluid have passed through these fractures directly below the Rae Group Sediments<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
System remains open east and north with immediate targets<\/p>\n<\/div><\/li><\/ul><\/div><\/div>
![](\"https:\/\/wcminerals.com.au\/wcminerals\/wp-content\/uploads\/2026\/06\/CrossSectionLookingToTheOpenEastIllustratingDrillholesSTK25001AndSTK25003.png\")
<\/a><\/span>Cross section, looking to the open east - illustrating drillholes STK25001 and STK25003, which both intersected copper mineralisation adjacent to the Rae Group, Husky Creek Formation redox boundary<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>Unlocking the Sediments<\/h4>\n<\/div>- <\/i><\/span>Proterozoic Era basins host some of the largest sediment hosted copper deposits<\/div><\/li>
- <\/i><\/span>\n
Drill results, alongside geophysics indicate the outer edge of the system was drilled<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
Typically, grades increase as the system vectors towards the higher-grade chalcocite & bornite – which is seen in abundance across the project<\/p>\n<\/div><\/li>
- <\/i><\/span>High resolution airborne electro-magnetic survey completed – Geophysics signatures now defined<\/div><\/li>
- <\/i><\/span>Drill rig on Site with drilling to commence Q3 2026<\/div><\/li>
- <\/i><\/span>\n
Results from limited area reinforce district-scale copper potential<\/p>\n<\/div><\/li><\/ul><\/div><\/div>
![](\"https:\/\/wcminerals.com.au\/wcminerals\/wp-content\/uploads\/2026\/06\/PlanViewOf2025DrillholesSTK25001AndSTK25003AndSTK25004IntoTheStarkTarget.png\")
<\/a><\/span>Plan view of 2025 drillholes STK25001, STK25003 & STK25004 into the Stark target. Basemap of conductivity from 2024 MT survey illustrating an untested zone of deep conductivity to the east \/northeast of drillholes<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>2026 Drilling Program<\/h4><\/div><\/div>- <\/i><\/span>2025 drilling program confirmed the presence of sediment hosted copper mineralisation at the base of the Rae Group, where it is in contact with underlying, oxidised sediments and basalts of the Husky Creek Formation (the redox boundary).<\/div><\/li>
- <\/i><\/span>A total 1.7km strike length of copper mineralisation was discovered adjacent to the Herb Dixon Fault concentrated at the redox boundary<\/div><\/li>
- <\/i><\/span>\n
Diamond drilling within the Rae Group sediments will be conducted on wide spacings, targeting structural features across the >4.7km wide basin<\/p>\n<\/div><\/li>
- <\/i><\/span>EM conductors to the east of STK25001 discovery drillhole, defined by 2025 survey will be tested in the 2026 drilling program<\/div><\/li><\/ul><\/div><\/div>
![](\"https:\/\/wcminerals.com.au\/wcminerals\/wp-content\/uploads\/2026\/07\/HulkSedimentaryDrillingTargets30Jun26.jpg\")
<\/a><\/span><\/div><\/div><\/div><\/div><\/div><\/div>District-Scale Conductive Anomalies<\/h4><\/div><\/div>Hulk comprises multiple fault-controlled sub-basins interpreted as favourable sedimentary copper horizons:<\/p>\n<\/div>
- <\/i><\/span>\n
Three fault-controlled sub-basins covering >20 km of strike<\/strong> across the Rae Group sediments<\/p>\n<\/div><\/li>- <\/i><\/span>Covers >150 km\u00b2 within a larger sub-basin (interpreted dimensions exceeding 20 km \u00d7 10 km), with anomalies open to the north<\/div><\/li>
- <\/i><\/span>Target horizon interpreted ~200\u2013300 m below surface; ~4,000 m of diamond drilling planned into the Hulk sub-basin adjacent to STK25001<\/div><\/li><\/ul><\/div><\/div>
Herb Dixon Fault Corridor<\/h4><\/div>Stark lies along the Herb Dixon Fault, a major regional structure extending more than 25 km across the project:<\/p>\n<\/div>
- <\/i><\/span>\n
Stark drilling:<\/strong> 12 m @ 2.45% Cu from 287 m, including 3.5 m @ 7.2% Cu<\/strong> \u2013 confirming a high-grade sediment-hosted discovery and ~4.3 km of N\u2013S strike along the Herb Dixon Fault<\/p>\n<\/div><\/li>- <\/i><\/span>\n
Highly conductive signature over >14 km strike<\/strong>, up to 2.2 km wide, coincident with the structure<\/p>\n<\/div><\/li>- <\/i><\/span>\n
Traceable to the Vision target, where surface rock-chip assays returned up to 64.02%\u00a0Cu<\/strong><\/p>\n<\/div><\/li><\/ul><\/div><\/div><\/div>Growth Path & Next Steps<\/h4><\/div>- <\/i><\/span>\n
Follow-up drilling<\/strong> at Stark and Hulk, where mineralisation remains open to the east and north<\/p>\n<\/div><\/li>- <\/i><\/span>\n
Exploration targets<\/strong> planned for the Rae sedimentary copper areas<\/p>\n<\/div><\/li>- <\/i><\/span>Ongoing downhole electromagnetic surveys and geophysical refinement across multiple walk-up targets<\/div><\/li><\/ul><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>
Source ASX Announcements<\/h3><\/div>Figures in this document are drawn from White Cliff Minerals\u2019 ASX disclosures, including:<\/p>\n<\/div>
- <\/i><\/span>26 Nov 2024 \u2013 WCN Acquires Highly Prospective and Proven Copper Project (historic 4.16 Mt @ 2.96% Cu)<\/a><\/div><\/li>
- <\/i><\/span>
Hulk Sedimentary Prospect<\/h2>\n<\/h1>\n<\/div><\/div><\/i> Nunavut, Canada<\/p>\n<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>Sedimentary-Hosted Copper \u2013 Hulk & Stark<\/h3><\/div><\/div>Beyond Danvers, Rae hosts extensive Proterozoic Rae Group sedimentary basins of the type that host the world\u2019s largest copper deposits. This is a separate, Tier-1-scale exploration play targeting basin-hosted copper across tens of kilometres of strike.<\/p>\n
The maiden diamond hole into the sediment targets, STK25001, confirmed copper mineralisation both above and below the targeted redox boundary \u2013 validating the geological model and providing strong vectors for follow-up drilling.<\/p>\n<\/div><\/div><\/div>
<\/a><\/span><\/div><\/div><\/div><\/div><\/div>Maiden Drilling<\/h4>\n<\/div>- <\/i><\/span>2026 drilling now underway with first assays expected from August 2026<\/b><\/div><\/li>
- <\/i><\/span>\n
First results from the diamond drillhole targeting sedimentary hosted copper at Rae confirms sediment hosted copper mineralisation:
\n– STK25001 returned assays of 7m @ 0.4% Cu, from 177m and 3.5m @ 7.2% Cu (from 287m) in the basement below; and
\n– STK25003, ~500m south returned 25m @ 0.6% Cu, from 240m<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
Both holes confirm copper adjacent to sediment\u2013basement unconformity<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
High grade copper veining in the basement indicates significant volumes of copper rich fluid have passed through these fractures directly below the Rae Group Sediments<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
System remains open east and north with immediate targets<\/p>\n<\/div><\/li><\/ul><\/div><\/div>
<\/a><\/span>Cross section, looking to the open east - illustrating drillholes STK25001 and STK25003, which both intersected copper mineralisation adjacent to the Rae Group, Husky Creek Formation redox boundary<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>Unlocking the Sediments<\/h4>\n<\/div>- <\/i><\/span>Proterozoic Era basins host some of the largest sediment hosted copper deposits<\/div><\/li>
- <\/i><\/span>\n
Drill results, alongside geophysics indicate the outer edge of the system was drilled<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
Typically, grades increase as the system vectors towards the higher-grade chalcocite & bornite – which is seen in abundance across the project<\/p>\n<\/div><\/li>
- <\/i><\/span>High resolution airborne electro-magnetic survey completed – Geophysics signatures now defined<\/div><\/li>
- <\/i><\/span>Drill rig on Site with drilling to commence Q3 2026<\/div><\/li>
- <\/i><\/span>\n
Results from limited area reinforce district-scale copper potential<\/p>\n<\/div><\/li><\/ul><\/div><\/div>
<\/a><\/span>Plan view of 2025 drillholes STK25001, STK25003 & STK25004 into the Stark target. Basemap of conductivity from 2024 MT survey illustrating an untested zone of deep conductivity to the east \/northeast of drillholes<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>2026 Drilling Program<\/h4><\/div><\/div>- <\/i><\/span>2025 drilling program confirmed the presence of sediment hosted copper mineralisation at the base of the Rae Group, where it is in contact with underlying, oxidised sediments and basalts of the Husky Creek Formation (the redox boundary).<\/div><\/li>
- <\/i><\/span>A total 1.7km strike length of copper mineralisation was discovered adjacent to the Herb Dixon Fault concentrated at the redox boundary<\/div><\/li>
- <\/i><\/span>\n
Diamond drilling within the Rae Group sediments will be conducted on wide spacings, targeting structural features across the >4.7km wide basin<\/p>\n<\/div><\/li>
- <\/i><\/span>EM conductors to the east of STK25001 discovery drillhole, defined by 2025 survey will be tested in the 2026 drilling program<\/div><\/li><\/ul><\/div><\/div><\/a><\/span><\/div><\/div><\/div><\/div><\/div><\/div>
District-Scale Conductive Anomalies<\/h4><\/div><\/div>Hulk comprises multiple fault-controlled sub-basins interpreted as favourable sedimentary copper horizons:<\/p>\n<\/div>
- <\/i><\/span>\n
Three fault-controlled sub-basins covering >20 km of strike<\/strong> across the Rae Group sediments<\/p>\n<\/div><\/li>- <\/i><\/span>Covers >150 km\u00b2 within a larger sub-basin (interpreted dimensions exceeding 20 km \u00d7 10 km), with anomalies open to the north<\/div><\/li>
- <\/i><\/span>Target horizon interpreted ~200\u2013300 m below surface; ~4,000 m of diamond drilling planned into the Hulk sub-basin adjacent to STK25001<\/div><\/li><\/ul><\/div><\/div>
Herb Dixon Fault Corridor<\/h4><\/div>Stark lies along the Herb Dixon Fault, a major regional structure extending more than 25 km across the project:<\/p>\n<\/div>
- <\/i><\/span>\n
Stark drilling:<\/strong> 12 m @ 2.45% Cu from 287 m, including 3.5 m @ 7.2% Cu<\/strong> \u2013 confirming a high-grade sediment-hosted discovery and ~4.3 km of N\u2013S strike along the Herb Dixon Fault<\/p>\n<\/div><\/li>- <\/i><\/span>\n
Highly conductive signature over >14 km strike<\/strong>, up to 2.2 km wide, coincident with the structure<\/p>\n<\/div><\/li>- <\/i><\/span>\n
Traceable to the Vision target, where surface rock-chip assays returned up to 64.02%\u00a0Cu<\/strong><\/p>\n<\/div><\/li><\/ul><\/div><\/div><\/div>Growth Path & Next Steps<\/h4><\/div>- <\/i><\/span>\n
Follow-up drilling<\/strong> at Stark and Hulk, where mineralisation remains open to the east and north<\/p>\n<\/div><\/li>- <\/i><\/span>\n
Exploration targets<\/strong> planned for the Rae sedimentary copper areas<\/p>\n<\/div><\/li>- <\/i><\/span>Ongoing downhole electromagnetic surveys and geophysical refinement across multiple walk-up targets<\/div><\/li><\/ul><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>
Source ASX Announcements<\/h3><\/div>Figures in this document are drawn from White Cliff Minerals\u2019 ASX disclosures, including:<\/p>\n<\/div>
- <\/i><\/span>26 Nov 2024 \u2013 WCN Acquires Highly Prospective and Proven Copper Project (historic 4.16 Mt @ 2.96% Cu)<\/a><\/div><\/li>
- <\/i><\/span>
<\/i> Nunavut, Canada<\/p>\n<\/div><\/div><\/div> Beyond Danvers, Rae hosts extensive Proterozoic Rae Group sedimentary basins of the type that host the world\u2019s largest copper deposits. This is a separate, Tier-1-scale exploration play targeting basin-hosted copper across tens of kilometres of strike.<\/p>\n The maiden diamond hole into the sediment targets, STK25001, confirmed copper mineralisation both above and below the targeted redox boundary \u2013 validating the geological model and providing strong vectors for follow-up drilling.<\/p>\n<\/div><\/div><\/div> First results from the diamond drillhole targeting sedimentary hosted copper at Rae confirms sediment hosted copper mineralisation: Both holes confirm copper adjacent to sediment\u2013basement unconformity<\/p>\n<\/div><\/li> High grade copper veining in the basement indicates significant volumes of copper rich fluid have passed through these fractures directly below the Rae Group Sediments<\/p>\n<\/div><\/li> System remains open east and north with immediate targets<\/p>\n<\/div><\/li><\/ul><\/div><\/div> Drill results, alongside geophysics indicate the outer edge of the system was drilled<\/p>\n<\/div><\/li> Typically, grades increase as the system vectors towards the higher-grade chalcocite & bornite – which is seen in abundance across the project<\/p>\n<\/div><\/li> Results from limited area reinforce district-scale copper potential<\/p>\n<\/div><\/li><\/ul><\/div><\/div> Diamond drilling within the Rae Group sediments will be conducted on wide spacings, targeting structural features across the >4.7km wide basin<\/p>\n<\/div><\/li> Hulk comprises multiple fault-controlled sub-basins interpreted as favourable sedimentary copper horizons:<\/p>\n<\/div> Three fault-controlled sub-basins covering >20 km of strike<\/strong> across the Rae Group sediments<\/p>\n<\/div><\/li> Stark lies along the Herb Dixon Fault, a major regional structure extending more than 25 km across the project:<\/p>\n<\/div> Stark drilling:<\/strong> 12 m @ 2.45% Cu from 287 m, including 3.5 m @ 7.2% Cu<\/strong> \u2013 confirming a high-grade sediment-hosted discovery and ~4.3 km of N\u2013S strike along the Herb Dixon Fault<\/p>\n<\/div><\/li> Highly conductive signature over >14 km strike<\/strong>, up to 2.2 km wide, coincident with the structure<\/p>\n<\/div><\/li> Traceable to the Vision target, where surface rock-chip assays returned up to 64.02%\u00a0Cu<\/strong><\/p>\n<\/div><\/li><\/ul> Follow-up drilling<\/strong> at Stark and Hulk, where mineralisation remains open to the east and north<\/p>\n<\/div><\/li> Exploration targets<\/strong> planned for the Rae sedimentary copper areas<\/p>\n<\/div><\/li> Figures in this document are drawn from White Cliff Minerals\u2019 ASX disclosures, including:<\/p>\n<\/div>Sedimentary-Hosted Copper \u2013 Hulk & Stark<\/h3><\/div>
![](\"https:\/\/wcminerals.com.au\/wcminerals\/wp-content\/uploads\/2026\/07\/HulkProspectPhoto.jpg\")
<\/a><\/span><\/div><\/div><\/div><\/div>Maiden Drilling<\/h4>\n<\/div>
\n– STK25001 returned assays of 7m @ 0.4% Cu, from 177m and 3.5m @ 7.2% Cu (from 287m) in the basement below; and
\n– STK25003, ~500m south returned 25m @ 0.6% Cu, from 240m<\/p>\n<\/div><\/li><\/a><\/span>Unlocking the Sediments<\/h4>\n<\/div>
<\/a><\/span>2026 Drilling Program<\/h4><\/div>
<\/a><\/span><\/div><\/div><\/div><\/div>District-Scale Conductive Anomalies<\/h4><\/div>
Herb Dixon Fault Corridor<\/h4><\/div>
Growth Path & Next Steps<\/h4><\/div>
Source ASX Announcements<\/h3><\/div>