White Cliff Minerals Confirms High-Grade Copper Continuity Beyond 280m Depth

Danvers 3 System Extends Vertically Beyond 280 Metres

White Cliff Minerals (ASX:WCN) has reported assay results from its Rae Copper Project confirming high-grade copper-silver mineralisation extending to more than 280 metres vertical depth at the Danvers 3 system. Drillhole DAN26030, a scissor hole to DAN26015, returned multiple significant copper intervals, including 13.86 metres at 1.98% copper and 10.41g/t silver, and a standout 5.45 metres at 4.36% copper and 23.8g/t silver. The hole ended in mineralisation with the final 9.64 metres grading 1.08% copper and 8.62g/t silver, leaving the system open at depth.

This vertical continuity marks a crucial step in transitioning Danvers from a high-grade discovery to a better-understood, expandable copper system. The mineralised footprint around DAN26012 now extends approximately 866 metres laterally and beyond 280 metres vertically, rivaling the scale of the historic Danvers 1 mineralised envelope.

Phase 1 Drilling Defines 11.2 Kilometres of Copper Mineralisation

The recently completed Phase 1 drilling program at Rae has delineated a total of 11.2 kilometres of copper mineralisation, with over 8 kilometres assayed for copper. Mineralisation has been visually confirmed over 6,499 metres along the Teshierpi Fault Zone and 4,755 metres at Danvers 1 and its strike extensions, with the system remaining open both along strike and at depth.

Step-out hole DAN26034, located 449 metres northeast of DAN26030, confirmed further strike continuity with copper intervals including 1.42 metres at 1.33% copper and 1.5 metres at 3.68% copper, also open at depth. The broad regional scale of mineralisation across multiple Danvers targets underscores the project's potential as a district-scale copper system.

New Lead-Rich Metal Zonation Offers Vector for Targeting

Assays from DAN26030 revealed a pronounced lead-rich zone adjacent to and partially overlapping the deeper copper-silver mineralisation. The strongest lead values occur near the upper portion of the deeper copper zone before sharply decreasing downhole as copper grades continue. This metal zonation provides an important new geochemical vector for targeting thicker and higher-grade copper zones within Danvers 3.

Combined with sulphide assemblages and oriented-core structural data, this metal zonation will be integrated into follow-up drill targeting strategies, potentially improving the efficiency of resource delineation.

Ongoing Drilling and Exploration Plans

White Cliff Minerals is now progressing diamond drilling to infill the regionally spaced Phase 1 holes, refining targets as structural controls on mineralisation become clearer. The next phase of drilling will prioritise stepping out from high-grade zones at Danvers 3, testing strike and depth extensions at Danvers 1, and exploring extensions to Danvers 2 and Danvers 4, where previous drilling has also returned high-grade copper.

Pending assay results from 13 holes will be progressively incorporated into targeting models, particularly around Danvers 1 where mineralisation remains open along strike. This iterative approach aims to build out the resource volume and confidence ahead of potential resource estimation updates.

Historic Resource and Metallurgical Insights

The Rae Copper Project hosts a historic resource estimate at Danvers of 4.16 million tons grading 2.96% copper, though this estimate is not compliant with JORC standards and requires further validation. The company notes the need for additional work to confirm the historic data under modern reporting codes.

Metallurgical test work on Danvers samples has demonstrated excellent recoveries, with conventional flotation achieving over 95% copper and 93% silver recovery, producing saleable concentrates with high grades and no deleterious elements. These results support the potential economic viability of the mineralisation.