West Coast Silver Quarterly Activities Report

29 April 2026

Alien Metals Limited

("Alien" or the "Company")

West Coast Silver Quarterly Activities Report

Alien Metals Limited (AIM: UFO), a minerals exploration and development company, notes the release of the Quarterly Activities Report for the period ended 31 March 2026 from its joint venture partner at the Elizabeth Hill Silver Project ("Elizabeth Hill"), West Coast Silver Limited ("West Coast Silver") (ASX: WCE), which outlines continued strong exploration progress and ongoing growth potential at Elizabeth Hill in the West Pilbara, Western Australia.

Key Highlights:

· Assay results received from the Phase 2 diamond drilling programme completed in late 2025. The results confirmed extensive high-grade silver mineralisation and included:

o  27.4m @ 1,314 g/t Ag from 49m (hole 25WCDD014) including multiple bonanza-grade intervals with peak grades up to 33,107 g/t Ag (1,064 oz/t) over 0.35m.

o  22m @ 578 g/t Ag from 6m in hole 25WCDD019 demonstrating mineralisation extending northwest of previous drilling.

o  Additional high-grade intercepts including 1.95m @ 1,252 g/t Ag in hole 25WCDD022.

· A Reverse Circulation ("RC") drilling program of up to ~4,000m commenced during the quarter.

· A late 2025 high-resolution drone magnetic survey covering approximately 14 km² was interpreted to better define structural controls on mineralization.

Alien holds a 30% interest in Elizabeth Hill and holds 30.5 million shares in West Coast Silver (representing an 8.7% interest in the issued share capital of West Coast Silver).

Subsequent to quarter end, as announced on 22 April 2026, West Coast Silver released an inaugural JORC (2012) compliant Mineral Resource Estimate ("MRE") for Elizabeth Hill of 2.79 Moz silver at 617 g/t Ag, comprising 0.37 Moz Indicated and 2.42 Moz Inferred, reported above a 20 g/t Ag cut-off, confirming Elizabeth Hill as one of Australia's highest-grade silver deposits and establishing a strong foundation for near-term growth and potential development.

The full West Coast Silver Quarterly Activities Report is available at: WCE Quarterly Activities Report

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

Alien Metals Limited

Bruce Garlick

Email: [email protected]

Strand Hanson (Financial and Nominated Adviser)

James Harris / James Dance / Edward Foulkes

Tel: +44 (0) 207 409 3494

Zeus Capital Limited (Joint Broker)

Harry Ansell / Katy Mitchell

Tel +44 (0) 203 829 5000

Turner Pope (Joint Broker)

Andy Thacker / Guy McDougall

Tel: +44 (0) 203 657 0050

IFC Advisory (Financial PR and Investor Relations)

Tim Metcalfe / Graham Herring / Zach Cohen

Tel: +44 (0) 203 934 6632

Notes to Editors

Alien Metals Ltd is a mining exploration and development company listed on the AIM market of the London Stock Exchange (AIM: UFO). The Company follows a balanced strategy of advancing and strengthening its asset portfolio through targeted technical work and project development, while evaluating partnerships, joint ventures, and selective monetisation opportunities that are value-enhancing for shareholders. At the same time, Alien will continue to consider opportunities to expand our asset base through carefully selected acquisition opportunities which meet the Board's prudent criteria.

Alien's principal focus is the advancement and development of its 90%-owned Hancock Iron Ore Project in the central Pilbara region of Western Australia. The Hancock tenements contain a JORC-compliant resource of 8.4Mt at 60% Fe and offer significant exploration upside, which is targeted to deliver a mining operation of 2Mtpa for 10 years. The Project benefits from direct access to the Great Northern Highway, providing a route to export facilities at Port Hedland, one of the world's largest iron ore export hubs. Alien also holds exploration interests in the Brockman and Vivash iron ore projects in the West Pilbara.

Alien additionally retains exposure to two advanced precious and base metal assets in the Pilbara. At Munni Munni, one of Australia's largest PGM systems hosting a historic resource of 2.2Moz PGM (Palladium, Platinum, and Rhodium) and gold, the Company has completed its partial asset sale and joint venture transaction with GreenTech Metals Ltd, under which Alien has divested a 70% interest in the Munni Munni tenements to GreenTech and Alien will retain a 30% interest, free carried to the completion of a bankable feasibility study at Munni Munni. Alien (via wholly owned subsidiary A.C.N. 643 478 371 Pty Ltd) also retains a 30% interest in the Elizabeth Hill Silver Project through a joint venture with Crest, which encompasses the Elizabeth Hill Mining Lease M47/342, which has produced some of Australia's highest-grade silver ore during the late 1990s. Alien retains a 30% interest in the Elizabeth Hill Silver Project and additionally holds 30.5 million shares in West Coast Silver Limited, providing both direct project exposure and equity participation in ongoing development.