Drill Programme Recommences at Munni Munni

Drill Programme Recommences at Munni Munni PGE-Cu-Ni Project, WA

Alien Metals Limited (AIM: UFO), a minerals exploration and development company, is pleased to report that its proposed joint venture partner, GreenTech Metals Limited (ASX: GRE) ("GreenTech"), has announced that the Phase 1 drill programme has recommenced at the Munni Munni Platinum-Palladium-Copper-Nickel Project ("Munni Munni" or the "Project").

The full text of the announcement issued by GreenTech 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 / Guy McDougall

Yellow Jersey (Financial PR)

Charles Goodwin / Shivantha Thambirajah

Appendix A - ASX: GRE ANNOUNCEMENT

Drill Programme Recommences at Munni Munni PGE-Cu-Ni Project, WA

Highlights

• Phase 1 drilling programme has recommenced at the Munni Munni Platinum-Palladium-Copper-Nickel Project in WA, following the festive season break.
• The Munni Munni Project is situated on granted Mining Leases (MLs) with a historical JORC (2004) Mineral Resource Estimate (MRE) of 24 Mt @ 2.9 g/t 4E (PGE + Au) for 2.2Moz (HLX, 2002)[1]. This resource was historically defined in the period 1985-2002 with 91,077m of drilling comprising 328 drill holes.
• Cautionary Statement[2] - The estimates are historical and are not reported in accordance with the JORC Code (2012); a competent person has not done sufficient work to classify the historical estimates as mineral resources or ore reserves in accordance with the JORC Code (2012); and it is uncertain that following evaluation and/or further exploration work that the historical estimates will be able to be reported as mineral resources or ore reserves in accordance with the JORC Code (2012).
• The planned Phase 1 drill programme comprises up to 20 holes for approximately 6,000m to provide QA/QC verification of historic resources to enable the Company to restate the MRE in accordance with JORC (2012) in early 2026, potentially expand the resource outside of the existing mineralised envelope and obtain material for metallurgical testwork.
• The diamond coring portion of the programme commenced in late December 2025 with 8 drill holes to be completed for ~2,000m.
• A second drill rig will commence the RC portion of the drill programme (~4,000m) in the coming days.
• There is excellent preservation of the stored historical core along with related laboratory sample pulps, which can potentially be used to accelerate the QA/QC validation of the historical resource.
• Strengthening PGE and copper prices, combined with the consolidation of the nearby Whundo copper project, has the potential to enhance project economics and provide a clear catalyst to re-evaluate Munni Munni's established PGE-Cu-Ni endowment.

GreenTech Metals Ltd (ASX: GRE) (GreenTech or the Company) is pleased to announce that, following the festive season break, the Phase 1 drill programme has recommenced at the Munni Munni Platinum-Palladium-Copper-Nickel Project located adjacent to the Company's advanced Whundo Copper-Zinc-Gold Project. The consolidation of these projects creates potential for an emerging district-scale multi-commodity development hub in the West Pilbara region of Western Australia.

Drilling, which had commenced in December, was paused for the festive season on 20 December with 162m completed on the first drill hole.

The finalisation of the acquisition of a 70% interest1 in this project, with provision to go to 80% is subject to shareholder approval on 21 January 2026.

Non-Executive Chairman, Simon Kidston, commented:

"We are very pleased that our Phase 1 drill programme at Munni Munni has quickly recommenced and with a second drill rig engaged to accelerate the programme. This is a defining programme for GreenTech with the key objective of unlocking the full potential of this world-class PGE-Cu-Ni project.

"With strong global demand for PGEs, improving metal prices and district-scale consolidation achieved (subject to shareholder approval in January 2026), this programme is designed to transition Munni Munni into a modern, JORC (2012) resource and position the Company for the next phase of technical and commercial evaluation to create value for our shareholders."

Photo 1: Diamond Drilling at Munni Munni PGE-Cu-Ni Project

Phase 1 Drill Programme:

The Phase 1 drill programme of up to 20 drill holes will comprise a combination of Reverse Circulation (RC) and Diamond Drill (DD) holes for approximately 6,000m to provide QA/QC verification of the historic modelled resource sufficient to enable a classification of the MRE to JORC (2012) standard in early 2026.

To the extent possible within the programme constraints, the drilling will include infill and step-out coverage across the Ferguson Reef (Error! Reference source not found.), targeting both the historically defined higher-grade core within the 2002 MRE[3], extensions along strike and assessing the potential for additional shallow copper-nickel outside the current resource footprint. Intervals of the diamond cored mineralisation will be selected for detailed geological, mineralogical and structural analysis. In addition, representative composite samples will be selected and prepared for metallurgical testwork.

Due to the rugged terrain, small footprint track-mounted drill rigs have been chosen to undertake both the core and RC drilling components of the drill programme. The drill programme is anticipated to be completed in February 2026, with assay results anticipated approximately 4-6 weeks after completion.

Figure 1: Phase 1 Planned Drill Programme at Ferguson Reef

The Munni Munni Project is situated on granted Mining Leases (MLs) with a historical JORC (2004) Mineral Resource Estimate (MRE) of 24 Mt @ 2.9 g/t 4E (PGE + Au) for 2.2Moz (HLX, 2002)[4]. This resource was defined in the period 1985-2002 with 91,077m of drilling comprising 328 drill holes.

Table 1: Munni Munni Historical Mineral Resource Estimate

Cautionary Statement[5] - The estimates are historical and are not reported in accordance with the JORC Code (2012); a competent person has not done sufficient work to classify the historical estimates as mineral resources or ore reserves in accordance with the JORC Code (2012); and it is uncertain that following evaluation and/or further exploration work that the historical estimates will be able to be reported as mineral resources or ore reserves in accordance with the JORC Code (2012).

*Notes: A. Undiluted resource using 1.9g/t (Pt + Pd + Au) lower cut-off

Maximum depth 800 metres

* Rh values were not included in the resource calculation, but estimated from extensive assay data, which showed the Rh grade is 6% of the Pd grade

Historical Drill Core

There is excellent preservation of the stored historical drill core (Error! Reference source not found.) along with related laboratory sample pulps, which are located on site at Munni Munni. The cataloguing of the core and pulp samples is continuing. The numerous ¼ and ½ core mineralised sections preserved will be of great benefit to completing the QA/QC requirements for verification of the historical resource and may potentially enable acceleration of the QA/QC validation process.

Photo 2: Historical sectioned and sampled Munni Munni Core[6]

Figure 2: Munni Munni Tenure Overlain with Magnetics

This announcement has been authorised for release by the Board of GreenTech Metals Limited.

About The Munni Munni PGE-Cu-Ni Project

Munni Munni Project Tenement Location

[1] Refer ASX Announcement Helix Resources Limited (ASX: HLX) "First Quarter Activities and Cashflow Report (Part B)", dated 31 October 2002

[3] Refer ASX Announcement Helix Resources Limited (ASX: HLX) "First Quarter Activities and Cashflow Report (Part B)", dated 31 October 2002

[4] Refer ASX Announcement Helix Resources Limited (ASX: HLX) "First Quarter Activities and Cashflow Report (Part B)", dated 31 October 2002

[6] Refer GRE:ASX Announcement "Drill Programme Commenced at Munni Munni PGE-Cu-Ni Project" 17 December 2025