GreenTech’s Whundo Project Faces Key Metallurgical Test Results to Unlock Value

Significant Gold Discovery Enhances Whundo Project

GreenTech Metals Limited (ASX – GRE) has revealed a substantial gold endowment at its Whundo Copper-Gold-Zinc project in Western Australia's West Pilbara region. A comprehensive review of over 50,000 historic drill samples from 1,195 holes uncovered notable gold mineralisation associated with the existing copper and zinc deposits. This discovery adds a new dimension to the project's economic potential, which until now focused primarily on copper and zinc resources.

High-grade gold intercepts include impressive assays such as 1 metre at 64.7 grams per tonne gold and multiple other significant intervals, underscoring the prospectivity of the Whundo area. The company is currently re-assaying 1,416 samples from 33 drill holes that were previously untested for gold, with results pending. These new data could further upgrade the mineral resource estimate, potentially incorporating gold alongside copper and zinc.

Expanding the Copper-Zinc Footprint

Building on its exploration success, GreenTech has defined a substantial Exploration Target for the Whundo project, ranging from 15 to 23 million tonnes with copper grades between 0.9% and 1.4%, and zinc grades from 0.2% to 0.4%. This target suggests a significantly larger mineral system than previously delineated, with an estimated copper content of up to 265,000 tonnes and zinc up to 69,000 tonnes.

The company’s integration of geological, geochemical, and geophysical data has extended mineralised domains beyond current drilling limits, highlighting the potential for further resource growth. This exploration target remains conceptual, pending additional drilling and evaluation to convert it into a formal resource under JORC standards.

Metallurgical Testing and Mining Studies Underway

GreenTech is assessing the viability of near-term production opportunities at Whundo. A low-grade copper oxide stockpile, estimated at 100,000 tonnes and located adjacent to the Whundo East open pit, is undergoing metallurgical test work to evaluate heap leach extraction methods. The outcome of these tests will be critical in determining the economic feasibility of processing this material.

Simultaneously, the company is engaging mining consultants to conduct conceptual mine studies, focusing on a staged development approach that leverages the stockpile, existing resources at Whundo East and West, and the emerging Austin copper-zinc shoot. These studies aim to refine the project’s economic outlook and guide future drilling and development plans.

Ruth Well Gold Project Shows Promising Regional Gold Trend

Beyond Whundo, GreenTech’s Ruth Well Gold project has revealed an anomalous gold, silver, and arsenic trend extending over 28 kilometres. This structural zone aligns with known gold occurrences, including the nearby Carlow Castle gold deposit and Titan prospect. Historic soil and rock chip sampling have identified gold assays up to 5.04 grams per tonne, indicating fertile ground for orogenic-style gold mineralisation.

The company plans focused follow-up mapping and sampling to pinpoint the most prospective areas for initial drilling, aiming to unlock further value from this underexplored gold corridor.

Corporate and Financial Position

During the quarter, GreenTech spent a modest $5,000 on exploration activities, reflecting a disciplined approach while awaiting assay and metallurgical results. The company ended the period with $290,000 in cash, sufficient to fund operations for over four quarters at current expenditure levels. Board changes included the appointment of Jozsef Patarica as a Non-Executive Director and the addition of Henko Vos and Flynn Blackburn as Joint Company Secretaries, signaling strengthened governance as the company advances its projects.

GreenTech continues to focus on green technology metals critical to the energy transition, maintaining a strategic preference for advanced projects with high value potential.