West Coast Silver Launches 1,500m Diamond Drilling Program at Elizabeth Hill Silver Project

Diamond Drilling Program Commences at Elizabeth Hill

West Coast Silver Limited (ASX:WCE) has announced the start of a diamond drilling campaign at its flagship Elizabeth Hill silver project in the Pilbara region of Western Australia. The program, comprising up to 1,500 metres across six holes, aims to systematically test for high-grade silver mineralisation extensions beneath the historic Elizabeth Hill underground mine.

This drilling initiative represents the first focused effort to probe deeper mineralisation along the Munni Munni Fault, which is understood to be the primary structural control for the high-grade silver mineralisation at Elizabeth Hill. The company is targeting intersections within approximately 200 metres of surface, focusing on down-plunge and strike extensions of the known mineralised zones.

Testing the 'Pearls on a String' Structural Model

The program is designed to evaluate the 'Pearls on a String' exploration concept, which hypothesises that high-grade silver mineralisation repeats at regular intervals along the Munni Munni Fault. If confirmed, this structural repetition could materially increase the scale of the Elizabeth Hill silver system beyond the historical mine footprint.

Historical drilling has intersected moderate to high-grade silver mineralisation near surface and underground, with recent 2025 drilling confirming mineralisation extends to surface along strike. This diamond drilling will follow up on those results by testing for continuity, grade, and distribution of mineralised zones at depth.

Project Context and Exploration Strategy

Elizabeth Hill is recognised as one of Australia's high-grade silver projects, with historical production of approximately 1.2 million ounces of silver from just 16,830 tonnes of ore at an exceptional head grade of 2,194 grams per tonne. Mining ceased in 2000 due to low silver prices, but the deposit remains open at depth and along strike, offering significant potential for resource expansion.

West Coast Silver has consolidated a contiguous 180 square kilometre land package encompassing a significant portion of the Munni Munni Fault system and related structures, which are prospective for Elizabeth Hill-style silver deposits. The company is concurrently conducting multiple exploration programs, including reverse circulation drilling and geophysical surveys, to refine targeting and maximise discovery potential.

This diamond drilling program follows a recent 4,000-metre reverse circulation drilling campaign targeting near-surface extensions along the Munni Munni Fault, which was initiated in March 2026. The ongoing integration of geological, geophysical, and assay data will inform dynamic repositioning of drill holes to enhance exploration success. For more details on the recent drilling activities, see West Coast Silver's launch of the 4,000m drilling campaign to unlock Elizabeth Hill’s silver potential.

Outlook and Timing

The diamond drilling is expected to take approximately four to six weeks, subject to weather and operational conditions. Assay results will be received progressively through the second quarter of 2026, providing incremental insights into the depth potential and structural controls on silver mineralisation at Elizabeth Hill.

Executive Chairman Bruce Garlick emphasised the significance of the program, noting that confirming high-grade extensions and structural repetition could materially expand the resource potential of the project. The company is actively processing and interpreting exploration data to optimise future drilling and development strategies.