GreenTech Metals has fast-tracked its Phase 1 drilling at the Munni Munni PGE-Cu-Ni Project by deploying a second drill rig, aiming to upgrade and potentially expand its historic resource estimate to modern standards.
- Second drill rig mobilised to accelerate Phase 1 drilling program
- Up to 20 holes planned, totalling approximately 6,000 metres
- Historic resource of 24 Mt @ 2.9 g/t 4E (PGE+Au) to be verified and restated to JORC (2012)
- Recent $5.2 million capital raise funds acquisition and exploration
- Project positioned as part of a district-scale multi-commodity hub in West Pilbara
Accelerating Exploration at Munni Munni
GreenTech Metals Limited (ASX – GRE) has announced a significant step forward in its exploration activities at the Munni Munni PGE-Cu-Ni Project in Western Australia. The company has mobilised a second drill rig to the site to undertake the reverse circulation (RC) drilling component of its Phase 1 program, effectively accelerating the pace of work. This move underscores GreenTech’s commitment to unlocking the full potential of what is considered one of Australia’s most significant platinum group element (PGE) intrusions.
The Phase 1 drilling program, which commenced in late 2025, is designed to deliver up to 20 drill holes totalling around 6,000 metres. The primary objective is to verify and update the historical mineral resource estimate (MRE), last reported under JORC (2004) standards, to the current JORC (2012) code. This verification is critical for GreenTech to restate the resource with confidence and to potentially expand the known mineralised envelope.
Historic Resource and Modern Ambitions
The Munni Munni Project hosts a historical non-compliant resource of approximately 24 million tonnes at 2.9 grams per tonne of combined platinum group elements plus gold (4E), equating to roughly 2.2 million ounces. This resource was defined through extensive drilling between 1985 and 2002, but it has not been updated to modern reporting standards. GreenTech’s drilling program aims to provide the quality assurance and quality control (QA/QC) needed to bring this resource into compliance, while also testing for extensions beyond the previously defined zones.
Importantly, the project is situated on granted mining leases in the West Pilbara region, adjacent to GreenTech’s advanced Whundo Copper-Gold Project. The consolidation of these assets creates a promising district-scale multi-commodity development hub, which could enhance the strategic value of both projects.
Funding and Forward Outlook
Backing this accelerated exploration is a recent capital raise of $5.2 million completed in December 2025. These funds are earmarked for the acquisition of a 70% interest in the Munni Munni Project (with potential to increase to 80%) and to finance the ongoing drilling, resource evaluation, and metallurgical test work. Shareholder approval for the acquisition was secured in January 2026, clearing the way for GreenTech to swiftly complete the transaction.
With assay results expected within 4 to 6 weeks after drilling completion, anticipated by mid-2026, the market will soon gain clearer insights into the resource’s updated size and grade. Additionally, metallurgical testing on newly obtained core samples will inform the potential processing pathways, which historically have responded well to conventional flotation and concentration techniques.
Strategic Implications
Non-Executive Chairman Simon Kidston highlighted the significance of this program, noting the strong global demand for PGEs and improving metal prices as key drivers. The accelerated drilling and resource upgrade are positioned to transition Munni Munni into a modern, JORC-compliant asset, setting the stage for subsequent technical and commercial evaluations. The project’s location in a tier-1 mining jurisdiction and its proximity to existing infrastructure further enhance its appeal.
While the historical resource provides a solid foundation, the true value lies in GreenTech’s ability to confirm and expand these resources under current standards and to integrate the project within a broader regional development strategy. The coming months will be pivotal in determining how this promising asset shapes GreenTech’s growth trajectory.
Bottom Line?
As assay results approach, GreenTech’s accelerated drilling at Munni Munni could redefine its resource potential and market positioning.
Questions in the middle?
- Will the updated JORC-compliant resource exceed the historical 24 Mt estimate?
- What will metallurgical test results reveal about processing efficiencies and costs?
- How will GreenTech leverage the district-scale consolidation with the adjacent Whundo Project?