Elizabeth Hill Aircore Drilling Yields 24m @ 28g/t and 3m @ 787g/t Silver

Exploration Breakthrough at Elizabeth Hill

West Coast Silver Limited (ASX: WCE) has reported compelling assay results from its December 2025 aircore scout drilling program at the Elizabeth Hill Project near Karratha in Western Australia’s Pilbara region. The program, comprising 76 holes totaling 1,060 metres, has successfully extended known silver mineralisation beyond the historic Elizabeth Hill mine workings, highlighting the project’s underexplored potential.

Significant near-surface silver intersections were recorded, including a standout 24 metres at 28 grams per tonne silver (g/t Ag) from just 2 metres depth at Elizabeth Hill North. Even more striking was a 3-metre interval grading 787 g/t Ag, including a metre at an extraordinary 2,340 g/t Ag, underscoring the high-grade nature of the mineralisation close to surface.

Expanding the Mineralised Footprint

The drilling results reveal that silver mineralisation extends at least 150 metres north of the 2025 diamond drilling footprint and is also confirmed well to the south along the Munni Munni Fault. Notably, mineralisation is hosted not only in ultramafic rocks but also within granite, broadening the geological settings considered prospective for silver at Elizabeth Hill.

These findings suggest a structurally controlled silver system with multiple pods of high-grade mineralisation, potentially linked to splays or flexures in the Munni Munni Fault. The presence of quartz-carbonate veins and disseminated sulphides in altered granite further supports the prospectivity of the area.

Base Metals and Regional Exploration Upside

Beyond silver, the aircore program at Natalie Hill South intersected disseminated base metal sulphides including nickel, copper, and cobalt. These results confirm and expand upon historical drilling and hint at a broader polymetallic hydrothermal system in the region. West Coast Silver is investigating possible links between these base metal occurrences and the silver mineralisation at Elizabeth Hill, opening new avenues for exploration.

Next Steps and Development Outlook

Building on these encouraging aircore results and previous high-grade diamond drilling, West Coast Silver plans to mobilise a reverse circulation (RC) drill rig in the first quarter of 2026. This next phase aims to test the depth, grade, and extent of the near-surface mineralisation at Elizabeth Hill North and South. The data will feed into an open pit resource estimate and scoping study, advancing the project towards potential development.

The company also intends to conduct detailed geological and structural reviews, surface and down-hole geophysical surveys, and further drilling to explore extensions along strike and at depth. The proximity of the project to the Radio Hill processing facility, under evaluation through a memorandum of understanding with Artemis Resources Ltd, adds a strategic advantage for potential future operations.

Historical Context and Strategic Significance

Elizabeth Hill is historically one of Australia’s highest-grade silver projects, having produced 1.2 million ounces of silver from just under 17,000 tonnes of ore at an exceptional grade of 2,194 g/t Ag. Mining ceased in 2000 due to low silver prices, but the recent consolidation of land packages and new exploration results underscore the project’s untapped potential. Situated within the world-class West Pilbara mining jurisdiction, Elizabeth Hill benefits from established infrastructure and a supportive regulatory environment.