GreenTech Metals Limited has intersected high-grade copper, gold, silver and zinc mineralization in a diamond drill hole at the Ayshia deposit, part of the Whundo Project in the West Pilbara region of Western Australia.

Drill hole 26GTDD016 returned 4.76 metres grading 7.13% copper, 1.20% zinc, 0.88 g/t gold and 29.6 g/t silver from a downhole depth of 367 metres. The intercept includes a higher-grade interval of 3.44 metres at 9.43% copper, 1.59% zinc, 1.20 g/t gold and 39.7 g/t silver from 367.62 metres.

The reported intervals represent downhole lengths, and true widths have not yet been determined. The intersection sits within a broader 6.85-metre interval of chalcopyrite-rich massive to semi-massive sulphides logged from 366.07 metres to 372.92 metres downhole, comprising abundant chalcopyrite alongside pyrite, pyrrhotite and minor sphalerite.

The new result extends the tested mineralized trend approximately 65 metres down plunge beyond the existing Ayshia Mineral Resource envelope and represents the highest-average-grade multi-metre copper intersection identified at Ayshia to date.

“Importantly, the intersection is located beyond the existing Ayshia Mineral Resource envelope and demonstrates the down plunge potential for resource extension with increasing copper grades at depth.”

— James Rattenbury, Chief Executive Officer

GreenTech Metals holds a 100% interest in the Whundo project, which contains an established JORC 2012 Mineral Resource of 6.2 million tonnes at 1.12% copper and 1.04% zinc. The current drilling at Ayshia forms part of an active 8,300-metre exploration campaign across the Whundo and Munni Munni projects in the West Pilbara.

Downhole electromagnetic surveying of drill hole 26GTDD016 is planned to help target the down-plunge extension of the mineralized shoot. Laboratory assay results from recent drilling at Yannery and Austin are expected in October 2026. GreenTech Metals is targeting an updated Mineral Resource estimate for the Whundo Project in the fourth quarter of 2026 to incorporate the new data.

Read the full announcement: Extensional Whundo Drilling Hits 4.8m at 7.1% Cu 0.9g/t Au