Announcement of Joint Venture Partner GreenTech Metals 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 ending 31 March 2026 by its joint venture partner at the Munni Munni Platinum-Palladium-Copper-Nickel Project (“Munni Munni” or the “Project”), GreenTech Metals Limited (ASX: GRE) (“GreenTech”), highlighting significant progress at Munni Munni in Western Australia. Alien has exposure to key critical metals and precious metals via the Munni Munni Project including copper, nickel, platinum, and palladium.
Alien holds a 30% interest, free carried to the completion of a bankable feasibility study at Munni Munni, together with 47 million GreenTech shares, representing a 17.1% interest in the issued share capital of GreenTech.
Key Highlights:
· Assays from Q1 2026 drilling expected by GreenTech in the coming weeks
· Phase 1 drilling programme comprising approximately 2,928 metres across 12 holes completed
· Resampling of historical core from 16 drill holes is complete, accelerating the QA/QC process and providing significant savings in drilling costs
· Clear pathway to JORC (2012) Mineral Resource Estimate
The quarter represents a clear acceleration in Project momentum, with Munni Munni rapidly advancing into active drilling targeting resource validation. Alien retains a 30% interest across a consolidated landholding exceeding 500km² in the West Pilbara, free carried through to the completion of a Bankable Feasibility Study (“BFS”).
Exploration activity during the period has focused on validating and expanding the historical resource base. A Phase 1 drilling programme comprising approximately 2,928 metres across 12 holes has been completed, alongside the resampling of 16 historical drill holes. This approach has accelerated the validation process while materially reducing drilling costs. A total of 2,199 samples have been submitted for assay, with results expected during Q2 2026. In parallel, an independent QA/QC programme is being undertaken by Snowden Optiro to support the delivery of a JORC (2012) compliant Mineral Resource Estimate.
Importantly, GreenTech notes ongoing technical review of the extensive historical dataset has identified material upside that is not captured in the existing non-JORC resource of 23.6Mt at 2.9g/t 4E for approximately 2.2Moz. This includes the identification of high-grade PGE zones exceeding 4g/t 4E, evidence of under-recognised copper and nickel mineralisation, and shallow mineralised zones that may be amenable to open-pit extraction. These findings point to a broader and more complex mineralised system than previously understood and reinforce the potential for both resource growth and reclassification as validation work progresses.
The combination of systematic data validation and near-term assay results provides a pathway to a JORC-compliant Mineral Resource Estimate. Each of these milestones represents an important stage as the geological model is refined and expanded.
Strategically, Alien’s retained interest offers leveraged exposure to one of Australia’s most significant undeveloped PGE systems, located in a Tier 1 jurisdiction and increasingly demonstrating multi-commodity potential across PGE, copper and nickel. The free-carried position through to BFS is particularly compelling, enabling the Company to participate fully in resource growth and development progression without incremental capital requirements.
In addition to Munni Munni, Alien shareholders retain exposure to the Elizabeth Hill Silver Project through a 30% joint venture interest, as well as a holding of 30.5 million shares in West Coast Silver Limited (ASX: WCE), providing exposure to both project-level value creation and also its equity shareholding in West Coast Silver.
Figure 1: Munni Munni Project Location
The full GreenTech March Quarterly Activities Report can be found at the following link: http://www.rns-pdf.londonstockexchange.com/rns/7238B_2-2026-4-23.pdf
The GreenTech Appendix 5B can be found at the following link: http://www.rns-pdf.londonstockexchange.com/rns/7238B_1-2026-4-23.pdf
For further information, please visit the Company’s website at www.alienmetals.uk or contact:
Alien Metals Limited
Bruce Garlick
Email: ir@alienmetals.uk
