GreenTech Drilling Hits New PGE Mineralisation, Sets Scene for More Munni Munni Growth

Why It Matters

The validated high‑grade PGE and newly identified copper‑nickel mineralisation strengthen Munni Munni’s resource credibility and could unlock bulk‑mining opportunities, boosting GreenTech’s valuation and Australia’s PGE supply chain.

Key Takeaways

• Phase 1 drilling returned up to 8.37 g/t PGE3 over 2 m
• New shallow copper‑nickel zones identified alongside high‑grade PGE reefs
• Twin holes validated historic data, confirming resource continuity
• Resource re‑estimate to JORC 2012 expected by June 2026
• Munni Munni holds 24 Mt at 2.9 g/t PGE4 non‑JORC resource

Pulse Analysis

GreenTech Metals’ recent drilling campaign at Munni Munni underscores the growing importance of Australia’s platinum‑group element (PGE) sector. The Western Australian project sits within a 225‑square‑kilometre intrusive body that hosts the Ferguson Reef, a historically high‑grade PGE corridor. By intersecting multiple zones exceeding 8 g/t PGE3 and revealing copper‑nickel sulphide mineralisation at shallow depths, the results broaden the project's metallurgical profile, positioning it for both precious‑metal and base‑metal extraction strategies.

The Phase 1 program not only delivered new high‑grade intercepts—such as a 12‑metre interval of 3.13 g/t PGE3 with notable copper and nickel—but also confirmed the reliability of legacy drill data through twin‑hole and core‑re‑sampling work. This dual validation is critical for the upcoming JORC 2012 resource re‑estimation, which will incorporate PGE4 (including rhodium) grades and payable copper‑nickel values. A more robust resource estimate can improve the company’s net‑smelter‑return modeling, potentially attracting downstream processors and financing partners.

Looking ahead, GreenTech plans to extend infill and peripheral drilling to thicken the Ferguson Reef and delineate additional sulphide bodies that may be amenable to bulk open‑cut mining. The anticipated June 2026 resource update could lift the company’s market profile, especially as global demand for platinum‑group metals rises amid tightening emissions standards and growing interest in battery‑grade nickel. Investors should monitor the metallurgical test results and smelter contracts that will shape the project's economic viability.