Petratherm Limited Unveils 20km² Expansion of High-Grade Titanium Mineralisation at Rosewood – Impressive Drilling Results Signal Strong Project Upside

Monday, June 23, 2025
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Petratherm Limited’s latest drilling at the Rosewood prospect has expanded its high-grade mineralized zone beyond 20 km². With numerous strong intersections confirmed, further drilling and testing are underway, fueling optimism about significant project extensions and future growth potential for novice traders.

Petratherm Limited has released detailed results from its extensive Phase 2 drilling program at the Rosewood Heavy Mineral Prospect, located in the northern Gawler Craton of South Australia. The recently completed program involved 128 air-core drill holes over a 4,486‐meter campaign, with 63 holes at the Rosewood area now returning significant heavy mineral (HM) intercepts. Notable results include hole 25RW021 yielding 9 meters at 15.1% HM (with a 3‐meter section recording 26.4% HM), hole 25RW023 returning 12 meters at 12.7% HM (including 7 meters at 17.1% HM), and hole 25RW030 delivering 11 meters at 16.4% HM with an exceptional 1-meter intercept at 55.7% HM. These technical indicators confirm not only robust grades and continuity but also a significant thickening of the smartly delineated HM deposit. The drilling results have expanded the defined mineralised envelope to cover an area in excess of 20 square kilometres, and mineralisation remains open to the north. Two distinct high-grade, north-south trending zones have emerged, known as Rosewood East and Rosewood West. The results confirm that these near-surface, thick intervals—interpreted as ancient marine strandline deposits—are an important target for further exploration. Significant northernmost intercepts, including those from drill holes 25RW010, 25RW032, 25RW033, and 25RW038, underscore the potential of upward expansion, with historical data from South Australian Department of Mining drillholes further supporting continuity extending at least an additional kilometer north of previous results. Looking ahead, additional step-out drilling is expected to commence later this week to further test the northern extensions. Complementary bulk sample metallurgical studies will be initiated to evaluate mineral recovery, processing techniques, and potential product mixes. These studies are aimed at confirming the high-value nature of the titanium-rich HM mineralisation—a crucial step towards transitioning from exploration to potential production. The news carries strong bullish sentiment, as the impressive drill intercepts, expanded mineralised footprint, and confirmation of continuous high-grade zones strongly support a positive outlook for the project. The planned follow-up drilling and metallurgical work should help de-risk the early-stage exploration phase while enhancing the asset’s potential value. On the bearish side, typical early-stage exploration risks persist, including uncertainties around the scalability of processing techniques and the technical challenges intrinsic to converting exploration success into economic production. Overall, the results reflect promising progress for Petratherm Limited as it continues to advance its Muckanippie Project.

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