Heavy Rare Earths Unveils High-Grade Silver and Base Metals at Prospect Hill

Polymetallic Potential Emerges at Prospect Hill

Heavy Rare Earths Limited (ASX, HRE) has delivered a compelling update on its Prospect Hill Project in South Australia’s northern Flinders Ranges, confirming the presence of high-grade silver and base metals in addition to previously reported tin mineralisation. A thorough reappraisal of historic drill hole data has uncovered standout polymetallic intervals, including a remarkable 1 metre intercept grading 282 grams per tonne silver, 1.87% copper, 3.48% zinc, and 3.16% lead, alongside 2.9% tin at the South Ridge prospect.

This discovery broadens the project’s commodity exposure significantly, positioning Prospect Hill as a polymetallic target rather than solely a tin deposit. The South Ridge prospect, which has demonstrated tin mineralisation extending over 500 metres of strike and to depths of 120 metres, now gains added value with these additional metals.

Securing Full Mineral Rights and Strategic Board Renewal

In a strategic move, Heavy Rare Earths recently secured all mineral rights for the Prospect Hill project from Havilah Resources Limited following shareholder approval. This consolidation enables the company to advance exploration without encumbrances, leveraging an extensive historical database comprising 56 drill holes and 25 trenches.

Complementing this, the company has refreshed its board with the appointments of Dr Amanda Buckingham and Mr Graeme Morissey as non-executive directors, bringing seasoned expertise to drive the next phase of exploration and development.

Pathway to a Maiden Mineral Resource Estimate

Heavy Rare Earths plans to initiate a maiden drilling program at South Ridge aimed at upgrading the prospect to a JORC-compliant Mineral Resource Estimate. This program will include percussion and diamond core drilling to infill existing data gaps and test for extensions both along strike and at depth. The company also intends to conduct further geological studies, including geochemical sampling, trenching, and mapping, to refine targeting ahead of drilling.

While the relationship between the base metals and tin mineralisation remains to be fully understood, these findings open new avenues for exploration and potential resource expansion. The polymetallic nature of the deposit could enhance the project's economic viability, especially given the strong grades reported in historic assays.

Broader Exploration Ambitions

Beyond South Ridge, Heavy Rare Earths is evaluating other prospects within the 75 square kilometre tenure, including Petermorra, Black Rock, and Fly Hill. The company’s portfolio also includes uranium, scandium, dysprosium, yttrium, and rare earth elements, underscoring its focus on critical minerals essential for emerging technologies.

With a robust historical dataset and a clear exploration roadmap, Heavy Rare Earths is poised to unlock further value from Prospect Hill, potentially transforming it into a significant polymetallic resource in South Australia.