Announcement • Sep 04

Botswana Minerals plc Moves AI-Driven Exploration Targets to Drill Sites and Begins Field Sampling on Northern Licences

Botswana Minerals plc has provided an update on its AI-assisted exploration programme across its north-west (Ngamiland) Botswana licences. The programme is now moving from large-scale data analysis into increasingly focused field testing. AI has been used to bring together decades of exploration information and identify where the strongest evidence for mineralisation occurs. Fieldwork will now test those areas on the ground and progressively and rapidly narrow them towards drill targets. The Company's current copper and polymetallic programme began with an AI review of its extensive Botswana database, covering approximately 95,000 km². This work led to the award in January 2026 of eight prospecting licences covering approximately 7,000 km² in north-west Botswana. In April 2026, the Company reported the first detailed results from the new licences, including a copper anomaly extending approximately 9.5 km, a silver corridor of around 20 km and a 2.4 km lead-zinc zone. In June, further AI review of historical records identified chalcopyrite - a primary copper sulphide, together with other copper minerals in historical drill core. These results provided direct evidence that copper mineralisation occurs within the broader licence area. The latest phase of work has concentrated on the southern portion of the licence portfolio. By combining historical information, geochemistry, geology and geophysics, the Company has identified a further group of exploration corridors rather than isolated anomalies. Across the current eastern Ngamiland study area, the Company has now defined nine principal corridors. One southern target is of particular interest because historical boreholes immediately to the south recorded copper oxide and copper carbonate mineralisation. The relevant historical drill core has also been located and will be examined as the programme progresses. The southern interpretation may also have wider regional significance. Published geological work suggests that parts of north-west Botswana may represent an eastward continuation of Namibia's Matchless Belt beneath Kalahari cover. The Matchless Belt hosts 18 known base-metal sulphide deposits. Geological and geophysical features identified on parts of the Company's ground may support this interpretation, providing an additional exploration hypothesis to test. This relationship has not yet been proven, and no inference is made as to the presence, size or grade of mineralisation on the Company's licences. On the northern licences, the programme is moving into the field. Sampling will begin over the highest-priority target areas identified by the earlier AI, geochemical, and historical-data analysis. The purpose is straightforward: reduce broad exploration corridors to smaller, better-defined targets that can be ranked for drilling. New field data will be combined with the existing geophysics, historical drilling information and available drill core. The Company will use this work to concentrate exploration expenditure on the strongest targets and determine which should advance to drill testing. The next steps (funded from existing cash resources) are to commence targeted field sampling on the northern licences, test and refine the newly defined southern corridors, examine and re-log relevant historical drill core, and integrate new field data with geophysics and AI interpretation to rank targets for drilling.

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