Thor Energy Plc (AIM, ASX: THR, OTCQB: THORF) is delighted to announce the preliminary results of its Phase-2 soil air geochemistry survey at the Company’s 80.2%-owned HY-Range Project (RSEL 802) in South Australia. The results build upon and validate the Phase-1 survey completed in Q2 2025, recording natural hydrogen readings up to 3% (30,000 ppm) on licence, whilst successfully validating three of the Company’s highest-priority exploration focus areas.
HIGHLIGHTS:
• Elevated Natural Hydrogen Concentrations: Phase-2 recorded highly elevated natural hydrogen readings, reaching a maximum of 3% (approximately 60,000 times background).
• Validation of Focus Areas: Consistently repeated high values, ranging from several hundred to several thousand times background, were recorded and identified across high-grade exploration areas (Mallala, Lochiel, & Crystal) during Phase-1.
• Rigorous Data Integrity: Evolved sampling techniques, in which depth, duration and material variables were tested alongside controls, strongly indicate the presence of highly active natural hydrogen generation. The risk of sampling error or anthropogenic (human-made) contamination has been substantially reduced at the HY-Range Project (RSEL 802).
• Compelling Geological Correlation: Anomalously high surface geochemistry aligns with Thor’s geological models and the crustal-scale basement architecture, faulting, and focusing mechanisms necessary to deliver economic volumes of natural hydrogen.
• Development of Thor’s natural hydrogen and helium exploration methodologies: This survey further refines in-house geochemical sampling methodologies and continues to evolve Thor’s integrated approach to natural hydrogen and helium exploration.
• Imminent 2D Seismic: Thor will shortly announce the award of an exploration 2D seismic acquisition programme across RSEL 802, designed to illuminate the full geological architecture of the Lochiel and Crystal focus areas for the first time, and mature definitive drilling targets.
The preliminary results from our Phase-2 geochemistry survey are highly encouraging. Replicating and expanding our Phase-1 results was our primary goal, but returning to the field and recording regionally extensive natural hydrogen readings that locally peaked at 3% is a strong outcome that far exceeded our expectations. Equally important is the scientific rigour our team applied to this programme. By evolving techniques, varying sample depths, and running stringent controls, we have substantially reduced the risk of false positives. We now have a robust, reliable dataset that shows compelling relationships between surface anomalies and the interpreted crustal faulting required to focus economic volumes. These results provide validity and the confidence to drive forward. We are finalising the award for a major 2D seismic acquisition programme, which will, for the first time, inform the structural architecture of our focus areas. The integration of this upcoming seismic data with our surface geochemistry results is the final step required to mature our targets and set Thor on a definitive path to exploration drilling.
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