Assay Update at Elizabeth Hill

Geological Indicators for Silver in Aircore Drilling: Assay Update

Alien Metals Limited (AIM: UFO), a minerals exploration and development company, is pleased to report that its joint venture partner, West Coast Silver Limited (ASX: WCE) ("West Coast" or "West Coast Silver") has announced that its aircore (AC) drill programme at the high-grade Elizabeth Hill Silver Project, to define targets surrounding the historical mine and along the Munni Munni margin has been completed with 76 holes for 1,060m. The aircore programme has intersected strong geological indicators, similar to those seen at the Elizabeth Hill mine. Samples have been submitted for assay with results due by the end of February.

The programme followed completion of the 1,015m, Phase 2 diamond drilling campaign at the Elizabeth Hill mine (testing near-surface high-grade mineralisation, and prospective areas at depth below historical workings), that intersected visible native silver, for which assays are pending.

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:

Strand Hanson (Financial and Nominated Adviser)

James Harris / James Dance / Edward Foulkes

Zeus Capital Limited (Joint Broker)

Harry Ansell / Katy Mitchell Tel +44 (0) 203 829 5000

Turner Pope (Joint Broker)

Andy Thacker / James Pope

Yellow Jersey (Financial PR)

Charles Goodwin / Shivantha Thambirajah

Appendix A - ASX: WCE ANNOUNCEMENT

Geological Indicators for Silver in Aircore Drilling: Assay Update

Highlights

• Aircore drilling at the Elizabeth Hill Silver Project has been completed with 76 holes for 1,060m, successfully testing multiple near-mine and regional prospects. Aircore is a rapid, shallow, cost-effective reconnaissance exploration technique.
• Strong geological indicators, similar to those seen at the Elizabeth Hill mine, identified in logging of aircore chips and core, including:

o Intense chlorite and silica alteration.

o Carbonate veining.

o Iron oxide staining is associated with interpreted structures.

• Fertile ultramafic-granite contact confirmed at NM2, NM5 and NM6 prospects consistent with the structural setting of historical high grade silver mineralisation at Elizabeth Hill (Figure 1).
• Aircore drilling intersected alteration and lithologies at NM5 prospect interpreted to be the near surface continuation of the contact position in historical high-grade drill hole:

o 2m @ 1,550g/t Ag from 108m (AMEHRC012) located 300m from the Elizabeth Hill mine.

• NM5 and NM6 prospects have been upgraded for priority follow-up exploration, based on the confirmation of favourable geology and alteration.
• Aircore assay results are expected to be returned by the end of February 2026.
• Samples from the recently completed diamond drilling are currently undergoing laboratory QA/QC checks, with assay results expected mid to late January 20261

West Coast Silver Limited (ASX: WCE) ('West Coast Silver' or the 'Company') is pleased to advise that its aircore (AC) drill program at the high-grade Elizabeth Hill Silver Project in the Pilbara, to define targets surrounding the historical mine and along the Munni Munni margin has been completed with 76 holes for 1,060m. The aircore program has intersected strong geological indicators, similar to those seen at the Elizabeth Hill mine. Samples have been submitted for assay with results due by the end of February. The program followed completion of the 1,015m, Phase 2 diamond drilling campaign at the Elizabeth Hill mine (testing near-surface high-grade mineralisation, and prospective areas at depth below historical workings), that intersected visible native silver, for which assays are pending.

Commenting on the results, Executive Chairman Bruce Garlick said:

"We are very encouraged by the outcomes of the aircore program, which has successfully confirmed multiple zones with strong geological indictors at several high-priority near-mine prospects at Elizabeth Hill.

The drilling has validated key structural and lithological controls, including ultramafic-granite contacts, alteration, and carbonate veining that are consistent with the setting of historical high-grade silver mineralisation. We now eagerly await assay results to further refine targeting for the 2026 drill program, with the objective of identifying a repeat of the Elizabeth Hill deposit.

This program marks the conclusion of our 2025 exploration activities and represents the third successful drilling campaign completed during the year. When combined with the strong assay results from the Phase 1 diamond drilling program, and the visual observations of native silver with assays pending from Phase 2, the Company is well positioned to advance Elizabeth Hill through a focused and high-impact exploration program in 2026".

1Refer ASX Announcement dated 24 November 2025.

Figure 1: Near-mine prospects: geology, geochemistry and aircore drill hole locations

Figure 2: Near mine geophysics, geochemistry and aircore drill hole locations

(overlain on detailed drone magnetics Total Magnetic Intensity data - reduced to the pole)

Aircore Drill Program

Aircore (AC) drilling is a rapid, cost-effective, low-impact reconnaissance drilling method commonly used to test shallow targets below deeply weathered and alluvial surface material. The objectives of the aircore drill program were to (i) confirm structural/stratigraphic controls along the Munni Munni fault and ultramafic/granite contact, highlighted by drone magnetics and other integrated geoscientific data, and (ii) identify zones of anomalous geochemistry for follow up drilling and or other exploration works.

The near mine prospects tested with the aircore drilling are highlighted in Figures 1 and 2 (refer to WCE ASX Announcement dated 13 November 2025).

The drilling tested the NM1 prospect, north of the historical Elizabeth Hill silver mine, for extensions of the mineralisation controlled by the Munni Munni fault (Figure 1 and Figure 2). Logging of AC chips identified altered, chloritised and silicified granite in the aircore drill line north of historical drill hole 22AMC011 (4m @ 60g/t Ag from surface), possibly representing alteration associated with the Munni Munni fault.

Aircore drilling also tested the southern extension of the Munni Munni fault and delineated the fertile ultramafic/granite contact south of the Elizabeth Hill Silver mine at the NM2, NM5 and NM6 prospects (Figure 1 and Figure 2). At the NM5 prospect, geological logging identified strongly chlorite altered pyroxenite (ultramafic rock) containing carbonate veins adjacent to the granite contact, approximately 50m west of the collar of historical drill hole AMEHRC012 (2m @ 1,550g/t Ag from 108m). The ultramafic/granite contact intersected in the AC drilling is interpreted to be the near surface continuation of the contact position intersected in AMEHRC012.

The two AC holes planned to test the strong soil anomaly and ultramafic/granite contact at the NM4 prospect failed to reach the contact due to rock conditions (Figure 1 and Figure 2). This prospect will need to be reassessed in terms of future exploration.

At the RS12 North prospect, aircore holes were planned to test a strong soil anomaly adjacent to the ultramafic/granite contact and mapped structures within the ultramafic rocks. While the drilling intersected a granite/ultramafic contact that are related to thin (0.5-1m wide) granitic dykes it did not test the main contact position. This prospect will need to be reassessed in terms of future exploration.

At RS12 South, drilling targeted a break in the magnetic signature of the rocks, near coincident soil anomaly and electromagnetic anomaly. A traverse of three holes tested the target zone however no clear signs to explain this anomalous area was evident from geological logging of the AC chips. Drilling intersected strongly chlorite altered pyroxenites and trace (<0.5%) chalcopyrite (Figure 1 and Figure 2).

A single drill hole was targeted between the RS12 South and RS13 prospects aimed to test an interpreted structure and mapped calcite veins in pyroxenite outcrop. Drilling intersected iron oxide staining in pyroxenite from 8m to 12m, which may represent a structure, and chloritised and silicified pyroxenite with 2-5% sulphides (pyrite, chalcopyrite) from 22m to 24m. This area will need to be reassessed in terms of future exploration.

Laboratory Testing

Samples from the AC drilling have been sent for laboratory assaying with results expected to be returned by the end of February 2026.

Result timeframes may vary pending lab analysis requirements for further testing.

Update on Assays for Diamond Drilling

Samples from the diamond drilling program, testing shallow historical high-grade silver, are currently undergoing QA/QC checks at the laboratory with some samples sent to ALS Canada for additional test work. Indications are these will be finalised and are expected to be received in mid to late January 2026.

The Elizabeth Hill Project

• Previous mining operation ceased in 2000: because of low silver prices (US$5)[2].
• Tier 1 Mining Jurisdiction located on a mining lease with potential processing option at the nearby Radio Hill site.

Figure 3: Tenement Location.

Bruce Garlick

Executive Director

West Coast Silver Limited

Appendix 1

Location and hole details for recent West Coast air core drill holes.

Note: GDA94 Zone 50 coordinate system

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