Munni Munni PGE-Cu-Ni Project

In December 2025, GreenTech Metals announced it had entered into binding agreements with Alien Metals Limited (AIM: UFO) to acquire up to 80% of the historical Munni Munni PGE Copper-Nickel Project (“Project” or “Munni Munni”). This transaction was completed on 2 February 2026.

The Project tenement package included four mining leases and two exploration tenements. In addition, GRE purchased 100% of an additional two exploration tenements at Munni Munni South. The collective tenement package consisting of ML’s and EL’s totals 346km² in the Tier 1 mining jurisdiction of the Pilbara, Western Australia, adjacent to the Company’s Whundo Copper-Gold deposit.

The Munni Munni Project is associated with the Munni Munni layered mafic intrusion and represents one of Australia’s most significant occurrences of platinum group elements (PGE’s). The mineralisation which comprises platinum, palladium, rhodium, gold and also copper and nickel is hosted by the large, laterally continuous Ferguson Reef. The project which has an extensive exploration history has several key attributes:

• Well-established PGE-Cu-Ni endowment: Historic drilling and metallurgical work have confirmed strong PGE grades within the Ferguson Reef, situated within one of Australia’s largest layered PGE-bearing systems.
• Previous development activity: Multiple operators advanced the project through substantial drilling, testwork and resource modelling which established a significant JORC (2004) resource. This earlier development stalled mainly due to weaker PGE prices at the time.
• Conventional processing pathway: Historical metallurgical studies indicate the mineralisation responds well to traditional flotation and concentration techniques.
• Significant growth potential: Mineralisation remains open along strike and at depth, with drilling across the now-consolidated tenure expected to unlock additional resources.
• Tier-1 mining jurisdiction: Located on granted mining leases in the Pilbara region of Western Australia, with proximity to the Radio Hill processing facility (third-party owned; GRE has no current agreement in place).

The consolidation of the surrounding land into a single 346.4km² contiguous tenure package provides a strategic opportunity for district-scale exploration. The package covers a substantial portion of the Munni Munni intrusion, and remains prospective for expansion of the known PGE-Cu-Ni Reef and the potential discovery of additional PGE reefs.

Historic Resource – (100% basis)^{1 2}

Starter resource: 24Mt @2.9g/t 4E (PGE +Au)

CAUTIONARY STATEMENT – The Mineral Resource estimates are historical estimates 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).

Footnotes

1. Royalty of $400,000 payable to Franco-Nevada on commercial mining ↩︎
2. Source: SRK Consulting (2002) Resource Estimate prepared for Platina Resources Ltd and reported as JORC (2004). This historical estimate has not been prepared and reported in accordance with JORC (2012) and should not be relied upon as a compliant JORC (2012) Mineral Resource. ↩︎