White Cliff Minerals (ASX:WCN) extends Danvers 3 copper zone

White Cliff Minerals has reported step out assay results from the Danvers 3 discovery at its Rae Copper Project, alongside drilling updates from Danvers 1 and Danvers 4 within the broader Teshierpi Fault Zone.

Highlights

DAN26036 was collared 105m west of discovery hole DAN26012 and drilled away from the previous intercepts, targeting the northwestern fault contact of the regional Teshierpi Fault Zone.

The result produced the highest assayed copper grade returned from the Danvers prospect to date, while the mineralised zone remains open towards surface and depth.

The latest assay can be considered alongside the grade continuity reported across the Danvers 3 step out holes.

DAN26012 recorded 19.81m from 152.4m at an average grade of 6.64% Cu, a grade thickness of 132 %Cu-m and a high grade core of 7.62m @ 11.38% Cu, while DAN26036 recorded a grade thickness of 142 %Cu-m.

Danvers 3 was discovered during widely spaced spring 2026 RC drilling along the northwestern edge of the Teshierpi Fault Zone, where chalcocite was identified as the dominant copper sulphide and the area was established as a priority follow up target.

Diamond scissor hole DAN26025 showed that the mineralisation is hosted by chalcocite cemented breccia, with copper sulphides occupying space between breccia clasts.

Oriented core observations show a contrast across the Teshierpi structure, with the mineralised flank characterised by crackle and mosaic breccia with limited clast rotation and breakdown, preserving permeability and open space for later copper bearing fluids.

This contrasts with the more intensely worked, matrix rich breccia in the centre of the fault zone.

White Cliff Managing Director Troy Whittaker commented on the relationship between the breccias, mineralisation and magnetic data:

“Importantly, we are now understanding why the high grades occur. The strongest chalcocite mineralisation is associated with permeable crackle/mosaic breccias along the flanks of the Teshierpi Fault Zone - that geometry is reflected in the magnetic data.”

The company’s emerging interpretation is that the highest grade chalcocite mineralisation preferentially develops along the more permeable margins of the Teshierpi Fault Zone rather than within its less permeable core.

These mineralised margins are associated with a strong magnetic gradient, allowing structural observations from oriented core to be integrated directly with the magnetic dataset.

Activity is also continuing at Danvers 1, where DAN26047 was collared between 2025 drillholes DAN25007 and DAN25012 to reduce drill spacing through the core breccia system and improve understanding of its plunge and internal grade controls.

As the 2nd diamond drillhole completed into Danvers 1, it provides oriented structural data and specific gravity measurements to support refinement of the geological model and future modelling, with laboratory assays due in 4 to 6 weeks.

At Danvers 4, DAN26044 intersected 31.43m of observed chalcocite and bornite mineralisation, including disseminated sulphides through basalt units, 365m northwest of Danvers 1.

A further 3 drillholes have been completed within the main Teshierpi Fault Zone north of Danvers 1, with assays pending.

White Cliff plans 3 additional diamond holes through the Danvers 1 core breccia zone to test down dip and plunge extensions.

Following completion of the infill program, the rig will move northeast to systematically test continuity between widely spaced drillholes that have returned copper mineralisation.

Further step out drilling at Danvers 2 and Danvers 3 will target gaps of more than 500m between existing mineralised drillholes.