Rae Copper Silver Project

Nunavut, Canada

A Tier-one high-grade Canadian copper discovery with district-scale and sedimentary hosted upside.

  • Location: Nunavut, Canada

  • Project Area: ~2,000 km²

  • Distance to Port: ~75 km to Kugluktuk

  • Commodities: Copper, Silver

The Rae Copper Silver Project is White Cliff Minerals’ flagship Canadian asset, located on mainland Nunavut approximately 75 km from the town and deep water port of Kugluktuk. The project covers an area of approximately 2,000 km² and is situated within a highly prospective copper district that hosts multiple known copper occurrences and discoveries.

Rae combines near surface high grade copper mineralisation with district scale sedimentary hosted copper potential. This unique combination underpins White Cliff’s strategy to pursue near term development opportunities while systematically advancing larger scale exploration targets capable of supporting a material copper project.

Danvers Copper Silver Discovery

Danvers represents the most advanced discovery within the Rae Project and provides a clear pathway toward a maiden resource. The deposit hosts a historic resource of 4.16 Mt at 2.96% copper and has been materially expanded through recent drilling programs.

Drilling has confirmed broad zones of copper and silver mineralisation extending from surface, with mineralisation remaining open along strike and at depth. Recent results have demonstrated continuity well beyond historic drilling limits, highlighting significant upside potential.

Rae Project Area

Key Highlights:

  • High grade copper and silver mineralisation from surface

  • Demonstrated upside to historic resource

  • Mineralisation open along strike and at depth

  • Proximity to port infrastructure supports development optionality

Danvers – 2025 Drilling Results

Rae Copper-Silver Project spans more than 1,200 square kilometres in one of the world’s leading mining jurisdictions Nunavut, Canada. A short flight from the regional mining hub of Yellowknife and around 75 km from the coastal town of Kugluktuk.

The 2026 regional campaign is systematically drill-testing roughly 12,000m of lateral strike along the Teshierpi Fault Zone, the major mineralised structure running through the Danvers area, where visible copper sulphides have been logged in every hole drilled into the main structure and the system has now been traced across more than 4.1 km of strike, remaining open in both directions.

Map of 2026 RC drillholes in the SW of the Teshierpi Fault Zone. Basemap of EM anomalism (X component) from 2025 geophysical survey. Interpreted mineralization trend highlighted by white outline between the observed downhole intervals of copper sulphides.

Cross section of drillhole DAN26012 located within a major EM anomaly that follows the Teshierpi Fault Zone. Extraordinary copper grades were returned from this newly discovered mineralisation.

  • The 2026 RC campaign at Danvers has rapidly elevated Rae into a major high grade copper discovery

  • Highlights include:

    • DAN26012: 19.81m @ 6.64% Cu from 152.4m, including 7.62m @ 11.38% Cu, 3.05m @ 17.68% Cu and 1.52m @ 21.1% Cu — highest-grade interval on record at Danvers
    • DAN26004: 15.24m @ 1.51% Cu from 225.55m, including 1.52m @ 5.18% Cu & 41.8g/t Ag; plus 9.14m @ 1.02% Cu from 36.58m
    • DAN26011: 7.6m @ 1.92% Cu from 144.8m
    • DAN26005: 3.05m @ 1.91% Cu from 114.3m; and 3.05m @ 1.5% Cu from 100.58m (hole ended prematurely, open)
    • Copper mineralisation now confirmed over 2.6km of strike along the Teshierpi Fault Zone, with logged visual sulphides extending the system more than 4.1km, open in both directions, towards surface and at depth Wcminerals
    • Visible copper sulphides logged in every hole drilled into the main structure — 100% strike rate

  • Systematic step-out drilling along the Teshierpi Fault Zone, advancing northeast toward the historic Danvers 1 deposit. The 2026 campaign opened more than 5km southwest of Danvers 1 and has since traced the system over more than 4 km along strike, with copper mineralisation confirmed over 2.6km by assay. Progressively closing the gap toward Danvers 1, open in both directions.

  • Danvers 2 discovery hole DAN25019 30.5m @ 2.5% Cu & 10.3g/t Ag from 7.5m, including 15m @ 4.8% Cu & 20g/t Ag and now the anchor of a copper system confirmed over 2.6km of strike by 2026 drilling

  • High-grade copper intercepts confirmed within a 2.6km assay-defined strike, with visual copper sulphides extending the system over >4km – aligning with the aerial geophysics interpretation and open in both directions

Dual Pronged Growth Strategy

DANVERS GROWTH PATH

Danvers is being advanced as a near term development opportunity. Ongoing drilling continues to grow the high grade resource base while preliminary economic and metallurgical studies assess the potential for a low capital development pathway, including direct shipping ore options.

SEDIMENTARY HOSTED COPPER UPSIDE

Beyond Danvers, Rae hosts extensive Proterozoic aged sedimentary basins known globally for hosting large scale copper deposits. Initial drilling has confirmed copper mineralisation associated with key redox boundaries, validating the geological model and providing strong vectors for follow up drilling.

Chalcopyrite-bornite-quartz-carbonate veining below the base of the sedimentary structure in STK25001 at 291.4m that returned assays of 14.95% Cu & 0.51g/t Au. Core diameter is NQ2

Sedimentary Copper Targets

Initial drilling at sedimentary targets has intersected broad zones of copper mineralisation across multiple holes. Mineralisation has been confirmed both above and below the targeted redox boundary, an important control for sedimentary hosted copper systems.

Large areas adjacent to initial drill holes remain untested and represent immediate follow up targets with potential to define a materially larger copper system.

Regional Targets – Hulk and Stark

Hulk – Multiple district Scale conductive anomalies

The Hulk target comprises multiple district scale conductive anomalies interpreted to represent favourable sedimentary copper horizons extending across more than 20 km of strike. These targets sit within fault controlled sub basins and remain largely untested by drilling.

Stark – A target in its own right? And … IS IT feeding Hulk
Map of the Herb Dixon Fault Zone target named STARK. >14 km of N/S strike of anomalous conductivity with a zone of 7 km showing high conductivity.

The Stark target lies along the Herb Dixon Fault, a major regional structure extending more than 25 km across the Rae Project. Strong conductive signatures coincident with this structure and exceptionally high grade surface copper occurrences suggest the potential for a significant mineral system.

Access and Infrastructure

Rae is well located from an infrastructure perspective. The project lies approximately 75 km from the town and deep water port of Kugluktuk, providing access for bulk materials during the open water season.

The project area is serviced by an all weather airstrip enabling year round access. Operational and logistical support is provided from Yellowknife, an established mining hub located approximately 90 minutes away by flight.

Development pathway and next steps

TIMELINE:

  • Q1 2026: Pending sedimentary copper assay results

  • Early 2026: Follow up drilling targeting major geophysical anomalies

  • 2026: Definition of an exploration target

Dash 7 aircraft on the Company’s all weather air strip

Town and Port of Kugluktuk, only 75km from the Rae Copper-Silver Project

Industrial town of Yellowknife only 90 minutes by flight

Industrial town of Yellowknife only 90 minutes by flight