Diamond Drilling Below the Elizabeth Hill Mine

Diamond Drilling for High-Grade Silver Extensions Below the Elizabeth Hill Mine Commences

Alien Metals Limited (AIM: UFO), a minerals exploration and development company, is pleased to advise that its joint venture partner, West Coast Silver Limited (ASX: WCE) ("West Coast" or "West Coast Silver"), has announced that an up to 1,500m (six holes) diamond drilling (DD) program has commenced at the Elizabeth Hill Silver Project near Karratha, in the Pilbara region of Western Australia, targeting areas directly below and next to the underground mine, where drilling in 2025 showed that silver extends to the surface. Drilling is expected to take between four and six weeks and results are expected to be received progressively through Q2 2026.

The full text of the announcement issued by West Coast Silver is provided below in Appendix A.

For further information, please visit the Company's website at www.alienmetals.uk or contact:

Alien Metals Limited

Bruce Garlick

Strand Hanson (Financial and Nominated Adviser)

James Harris / James Dance / Edward Foulkes

Zeus Capital Limited (Joint Broker)

Harry Ansell / Katy Mitchell

Turner Pope (Joint Broker)

Andy Thacker / Guy McDougall

Appendix A - ASX: WCE ANNOUNCEMENT

Diamond Drilling for High-Grade Silver Extensions Below the Elizabeth Hill Mine Commences

• A diamond drilling program of up to 1,500 meters (6 holes) has commenced beneath the historical Elizabeth Hill silver mine in Pilbara, Western Australia.
• This is the first thorough test of deeper silver mineralisation along the Munni Munni Fault, which is the main feature controlling high-grade silver distribution at Elizabeth Hill.
• The drilling will target areas directly below and next to the underground mine, where drilling in 2025 showed that silver extends to the surface.
• All holes are planned to reach the Munni Munni Fault within 200 meters of the surface.
• Drilling should take about four to six weeks. Results are expected to start coming in during the second quarter of 2026.

West Coast Silver Limited (ASX: WCE) ('West Coast Silver' or the 'Company') is pleased to announce an up to 1,500m diamond drilling (DD) program has commenced at its flagship Elizabeth Hill silver project in the Pilbara region of Western Australia. The drilling is designed to expand the existing footprint of the Elizabeth Hill high-grade silver mineralisation down-dip and plunge of the historical Elizabeth Hill silver mine (Figure 1 and Figure 2).

This program represents the first systematic test of the Company's structural model that suggests high-grade silver mineralisation may repeat at depth along the Munni Munni Fault, which, if confirmed, could materially expand the scale of the Elizabeth Hill system beyond the historical mine.

The DD program will specifically probe between and around historical drilling results along the Munni Munni Fault. Previous drilling intersected moderate to high-grade silver mineralisation, justifying follow-up to confirm depth potential, continuity, grade and distribution of intercepted zones.

All holes are designed to intersect the Munni Munni Fault within approximately 200m of surface.

Drilling is expected to take approximately four to six weeks, subject to weather and operational conditions. Assay results are anticipated to be received progressively through Q2 2026.

Commenting on the results, Executive Chairman Bruce Garlick said:

"Our previous 2025 drilling confirmed that silver mineralisation at Elizabeth Hill extends beyond the historical underground mine and associated with a broader structural corridor along the Munni Munni Fault. This current program of diamond drilling below Elizabeth Hill is designed to determine whether there are high-grade silver extensions below and south of the mine. The drilling will also test whether high-grade mineralisation repeats at depth; a model that, if confirmed, could materially expand the resource potential."

Exploration Next Steps

West Coast Silver is running multiple exploration programs from end of March to end of May 2026, comprising reverse circulation drilling, diamond drilling, borehole and surface geophysics.

Focus through the next three months of exploration activities will be on processing, interpreting and reporting results, as well as dynamic repositioning of remaining planned drill holes to maximise chances of success from results received (geological, geophysical and assay results)

Photo 1: Diamond drill rig currently at Elizabeth Hill. Drilling in progress

Figure 1: Plan view showing proposed 2026 EH Deeps diamond drill holes at Elizabeth Hill

Figure 2: Long Section showing planned diamond drilling (light blue) and current RC drill program (purple) target pierce points on section.

The Elizabeth Hill Project

• Mining operations ceased in 2000 as a result of low silver prices (US $5)[2].

Figure 3: Tenement Location.

Bruce Garlick

Executive Director

West Coast Silver Limited

[2] www.kitco.com/charts/silver