GreenTech Metals Limited (ASX:GRE) GreenTech Metals (ASX: GRE) is a A$21m West Pilbara explorer holding 70% of Munni Munni (PGE) and 100% of Whundo (Cu), two deposits 10km apart and 65km south of Karratha. Resource work on both was completed under materially weaker commodity assumptions, understating the mining envelope and contained metal. We are usually cautious of stories that recycle historical resources. This one earns attention because higher prices genuinely unlock a new perspective on optimal mining methods and subsequently economic resource etimation.
GreenTech trades at ~A$8 per attributable 4E ounce against a developer peer set in the A$18 to A$45 range. Munni Munni was acquired in February 2026 at roughly A$5 per ounce upfront. The global PGE supply pipeline is the thinnest in decades with only one major mine in active construction. The macro backdrop, the peer context and the catalyst calendar all break the same way.
GreenTech is not a discovery story. Both deposits have been known for decades. The 2002 Munni Munni resource was modelled at a 1.9g/t PGE cutoff over a 3m reef. The Whundo resource was modelled when copper traded at roughly half its current price. At today's prices, both deposits have bulk tonnage mining potential. Combined into a single hub and spoke operation, the case becomes compelling.
- Reinterpretation of resource with a hard catalyst. The maiden JORC MRE is imminent and will restate Munni Munni on bulk mining assumptions with copper and nickel credits, lifting tonnes and contained metal.
- Cheapest in the developer set. GRE trades at ~A$8 per attributable 4E ounce, a third of Podium (A$18), a fifth of Galileo (A$40) and a seventh of Chalice (A$34).
- Acquired even cheaper. Munni Munni acquired for A$8m upfront for a 70% interest, or about A$5 per attributable 4E ounce, versus A$15 to A$46 per ounce for comparable PGE deals.
- Whundo modelled at half today's price. Located 10km from Munni Munni, it is a potential near mine copper feedstock for an integrated operation. Pit shells deepen at spot with grade and thickness likely improving at depth.
- Tightest PGE supply backdrop in decades. One major mine in global construction (Ivanhoe Platreef 2), cumulative platinum shortfall nearing 3Moz since 2023, above ground stocks at just four months of cover.
- Tier 1 jurisdiction matters this cycle. Granted Mining Leases, 10km between the two assets and 65km from Karratha's deep water port, versus a global PGE pipeline still dominated by South Africa (Bengwenyama, Waterberg).
- Integrated development potential. Combining Munni Munni and Whundo into one Pilbara hub plant supports a 2 to 3Mtpa multi commodity operation with a 15 to 25 year mine life.
- Marquee shareholder register. Resource Capital Funds cornerstoned the May 2026 placement, with Nero and Regal alongside. The top 20 register also includes Tim Goyder, John Welbborne and Paul Cronin.
- M&A optionality. Regional copper producers are the obvious acquirers once the projects are packaged as a credible Pilbara copper development hub. GRE at A$21m market cap sits at 3% to 6% of the polymetallic developer cohort of Chalice (A$610m), Bravo (A$527m) and Terra Metals (A$282m).
