White Cliff Minerals (ASX:WCN) confirms copper discovery at Bornite Hills

White Cliff Minerals has reported a copper discovery from the 1st diamond drilling at Bornite Hills within its Rae Copper Project.

The program intersected broad bornite dominant mineralisation beneath a historic surface occurrence, while separate drilling confirmed copper mineralisation at the base of the Rae Group across more than 10km².

Highlights

The mineralisation at Bornite Hills is hosted by a NNW to SSE trending fault structure interpreted to splay from the Herb Dixon Fault Zone, which the company identifies as a major regional conduit for copper bearing fluids.

The structure cuts basalt and comprises composite quartz carbonate veins, polymictic breccias and copper sulphides dominated by bornite and chalcopyrite.

Banded veins and complex breccia cement phases record multiple episodes of fluid flow and mineralisation.

The drilling provides the 1st evidence of meaningful vertical continuity reported at Bornite Hills, with the mineralised system extending beneath the historic surface occurrence.

White Cliff Minerals Managing Director Troy Whittaker commented on the area remaining to be tested:

“The mineralised structure remains largely untested across approximately 725m of prospective strike and at depth.”

The Bornite Hills intersections are based on visual observations, with laboratory results pending.

White Cliff states that visual estimates of mineral abundance should not be considered a proxy or substitute for laboratory analyses where concentrations or grades are the factor of principal economic interest.

The company also states that visual estimates potentially provide no information regarding impurities or deleterious physical properties relevant to valuations.

Reported intervals represent downhole lengths, with true widths not known.

At BNH26003, the logged observations include 22.06m from 67.94m to 90.00m containing an estimated 1% bornite and 0.4% chalcopyrite.

BNH26001A included 11.50m from 60.50m to 72.00m containing an estimated 1% bornite, followed by 1.20m from 72.00m to 73.20m containing an estimated 5% bornite and 1% chalcopyrite.

Bornite Hills is approximately 32km from the Danvers area, where 2 diamond rigs remain active, completing infill and step out drilling along the Teshierpi Fault Zone and the northeastern extension of Danvers 1.

Across the wider Rae Copper Project, White Cliff completed 8 additional diamond holes during 2026 to test the redox boundary at the unconformity between the Rae Group and the underlying basalts and red bed sediments of the Husky Creek Formation.

This drilling identified mineralisation at the base of the Rae Group several kilometres from the 2025 discovery holes.

The known footprint extends more than 4.3km east to west and 2.1km north to south, with drill spacing of up to 2.6km between SED26001 and SED26002, leaving substantial untested areas between confirmed mineralised intercepts and along the wider contact.

Reported sedimentary drilling results include 1.14m at 0.35% Cu from 238.10m in SED26001, 4.46m at 0.19% Cu from 204.70m in SED26002 and 5.58m at 0.12% Cu from 268.00m in SED26005.

SED26008 returned 3.00m at 0.11% Cu from 137.00m and 0.80m at 0.16% Cu from 277.20m.

Sander Geophysics has been commissioned to fly an ultra high definition magnetic, gravity and radiometric survey over more than 70km of the Rae Group and Husky Creek Formation contact.

The survey will refine the basin architecture, basement highs and major structures that may have controlled fluid flow into the sedimentary sequence.

The new datasets will be integrated with 2024 MobileMT data and 2025 and 2026 drilling to rank regional targets for 2027 follow up.

The survey will also cover Thor and Rocket, where magnetic and radiometric data will be used to apply the exploration model used at Danvers.