Arkle Resources PLC, the energy metals explorer focused on uranium, has unveiled a significant acceleration of its exploration strategy in Namibia after completing a Phase 1 geophysical interpretation that has materially upgraded its understanding of uranium potential across its northern licence package in the Erongo region. The results, drawn from integrated airborne radiometric and magnetic surveys, ground electromagnetic work and recent geochemical sampling, have defined multiple high-priority drill targets spanning both paleochannel-hosted and hard-rock leucogranite systems, setting the stage for an expanded and earlier-than-planned drilling campaign.
The company, Arkle Resources PLC, confirmed that the interpretation covers three Exclusive Prospecting Licences and has already led to a significant change in exploration timelines, with drilling now being brought forward in select areas. Interim Chief Executive Officer Rory Harding described the results as a “defining moment” for the company’s uranium strategy, citing the rapid conversion of geophysical data into actionable drill targets across a district already known for hosting some of the world’s most productive uranium systems. Rather than continuing with months of additional surface-only work as initially planned, Arkle has opted to advance directly into drilling on its most compelling targets, reflecting what management views as unusually strong signal coherence between geophysics, surface sampling and regional geological models.
At the core of the announcement is the identification of two distinct uranium mineralisation styles: calcrete-hosted paleochannel systems and uraniferous leucogranite, commonly referred to in Namibia as alaskite-style mineralisation. These dual systems are both present in the Erongo uranium province, where they host some of the largest uranium deposits globally. Paleochannel targets at Arkle’s eastern EPL 8995 are interpreted as structurally and sedimentologically analogous to systems hosting the nearby Trekkopje Mine operated by Orano and the Marenica deposit being advanced by Elevate Uranium. Meanwhile, the leucogranite targets mirror the geological setting of major hard-rock uranium mines such as Rössing Mine, Husab Mine and the Etango Project being advanced by Bannerman Energy.
The technical interpretation has delivered a particularly important breakthrough on EPL 8995, where HLEM survey data has delineated multiple parallel paleochannel structures, including up to four inferred sub-channels. These are interpreted as part of a broader drainage system that may be contiguous with the same regional paleochannel network that hosts Trekkopje. Sediment flow indicators suggest an eastward transport direction toward the Orano-operated licence boundary, reinforcing the possibility of a continuous mineralising system extending across licence borders. This has given the company confidence to advance a 1,500 metre reverse circulation drilling programme into the Eastern target area as early as June 2026, subject to contractor availability. The drill programme is designed to directly test channel architecture, basement controls and margin structures identified through geophysics, with initial holes expected to target zones of structural complexity where uranium precipitation is most likely to have occurred.
Alongside the paleochannel developments, Arkle is rapidly advancing a large-scale uraniferous leucogranite target in the central-northern portion of EPL 8995. Surface sampling has returned high-grade uranium values reaching up to 3,855 ppm U₃O₈, while calcrete samples from paleochannel environments have returned up to 2,782 ppm U₃O₈, underscoring the dual prospectivity of the licence package. The leucogranite target spans approximately one square kilometre and is defined by coincident radiometric and magnetic anomalies, supported by mapped outcrop and structural interpretation. A trenching and sampling programme is scheduled to commence imminently, designed to refine geological continuity, alteration intensity and mineralisation controls before a deeper 2,500 metre drilling programme is launched in the third quarter of 2026, subject to results.
The exploration work is being overseen on the ground by Willem Kotzé, with independent technical input from a team of specialist advisers. Uranium geology expertise is being provided by Guy Freemantle, while geophysical interpretation has been supported by experienced industry specialists including Theo Aravanis. Additional field validation has been provided by Namibian uranium experts Paul Nex and Judith Kinnaird, whose assessments of leucogranite outcrops and structural geology have helped refine the emerging geological model. The integration of airborne survey data, ground electromagnetic measurements and legacy drillhole gamma-ray logging is now forming a multi-layered dataset intended to prioritise the next generation of drilling targets across the licence package.
Beyond the immediate drill-ready zones, the company has identified a broader pipeline of additional targets across its contiguous licences, including EPLs 8290 and 8298. These areas show multiple uranium anomaly clusters, particularly on EPL 8290 where four prominent anomalies on the eastern block have been confirmed by uranium-to-thorium ratio analysis. The western block of the same licence also shows multiple validated anomalies, suggesting a widespread and potentially interconnected uranium system. A regional trend of leucogranite-hosted mineralisation appears to extend northeast into EPL 8298, indicating a larger district-scale system than initially understood. This emerging footprint has reinforced the company’s view that its ground position may sit within a significant extension of the broader Erongo uranium province, which is already one of the world’s most productive uranium districts, hosting more than a billion pounds of defined resources and substantial historical production.
Arkle’s latest interpretation suggests that the licence area is not defined by a single deposit style but instead represents a geological convergence zone where both near-surface paleochannel systems and deeper intrusive-related uranium systems coexist. This dual prospectivity is relatively rare and provides multiple exploration vectors, increasing the probability of success while diversifying geological risk. With drilling now being accelerated and multiple programmes scheduled across 2026, the company is positioning itself for a sustained period of exploration activity and potential discovery news flow. As drilling begins to test both shallow calcrete-hosted systems and deeper hard-rock uranium targets, Arkle’s Erongo project is set to become one of the more active uranium exploration programmes in southern Africa over the coming year.
