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Namibia Uranium Exploration Update
Arkle Resources PLC has announced encouraging progress at its Erongo Uranium Project in Namibia, with field work including trenching and geological mapping on schedule ahead of an imminent maiden drill program. Legacy drillholes have revealed significant uranium intercepts, with seven exceeding 100 ppm eU₃O₈, including a peak of 1 m at 303 ppm eU₃O₈. Trenching has exposed uraniferous leucogranites and carnotite, with radiometric readings indicating uranium presence, pending laboratory assay confirmation. A 1,500-meter Reverse Circulation drilling program is set to commence on June 29, 2026, targeting paleochannel anomalies, with a further 2,500-meter program planned for Q3 2026, subject to trenching results. Disclaimer*
About this update from Arkle Resources Plc
THIS ANNOUNCEMENT CONTAINS INSIDE INFORMATION FOR THE PURPOSES OF THE MARKET ABUSE REGULATION (EU) 596/2014 (AS AMENDED) AS IT FORMS PART OF THE DOMESTIC LAW OF THE UNITED KINGDOM BY VIRTUE OF THE EUROPEAN UNION (WITHDRAWAL) ACT 2018 (AS AMENDED). UPON PUBLICATION OF THIS ANNOUNCEMENT, THIS INSIDE INFORMATION IS NOW CONSIDERED TO BE IN THE PUBLIC DOMAIN. 25 June 2026 Arkle Resources PLC ("Arkle" or the "Company") Namibia Uranium Exploration Update Uranium Identified in Trenching and Legacy Drillholes; Drilling to Commence Imminently at the Erongo Uranium Project, Namibia Arkle Resources PLC (LSE:ARK), the energy metals explorer focused on uranium, is pleased to announce that field work, including geological mapping and trench sampling, is progressing on schedule at its Erongo Uranium Project in Namibia, ahead of Arkle's imminent maiden drill programme. Highlights • Downhole GRS Survey Complete: 106 legacy drillholes have been surveyed across EPLs 8995 and 8298. 16 holes returned intercepts exceeding 50 ppm eU₃O₈ over one metre or more, of which seven exceeded 100 ppm eU₃O₈, with peak intercepts of 1 m at 303 ppm eU₃O₈ from 6.5 m (RC28) and 2 m at 215 ppm eU₃O₈ from 15.5 m (RC27). • Trenching and Sampling Underway: Seven trenches have been excavated so far, with lengths between 70 m and 170 m, to depths between 0.5 m and 2 m across a large ULG target of the centre-north area on EPL 8995 extending approximately 1Km by 700m. Excavations continue to expose bedrock geology, including uraniferous leucogranites for sampling. Trenching has exposed multiple stacked leucogranite sheets interleaved with metasediment, with the secondary uranium mineral carnotite logged in fractures; field radiometric readings indicate uranium across these zones, subject to confirmation by laboratory assay. • Geological Mapping Ongoing: Mapping is in its second week and continues to improve on the 1:250K resolution Geological Survey of Namibia Map sheets (2114 Omaruru and 2214 Walvis Bay). The work continues to add surface information that will inform and improve understanding of the ULG geological setting. • 1,500 m of RC Drilling: A initial programme of approximately 42 RC drillholes is planned to test surface and legacy downhole radiometric anomalies across the Eastern and Central...
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