Serval Resources is preparing an expanded exploration programme at its Kaoko Basin licences in Namibia after surface sampling returned copper grades of up to 37.8% and silver concentrations reaching 573 grams per tonne (g/t). The company plans to begin its first diamond drilling campaign in the fourth quarter of 2026 to establish whether the high-grade mineralisation extends below surface.
The strongest sample produced an estimated 45.49% copper-equivalent (CuEq) grade. Multiple samples collected across six prospects exceeded 10% CuEq, while mapped mineralisation now extends over approximately 5 kilometres of strike. Serval has also identified the Okamborombonga prospect, bringing the number of confirmed copper targets across its Kaoko licences to 13. The results provide targets for further exploration, but the company must establish the depth, thickness and continuity of the mineralisation before the scale of any potential deposit can be assessed.
High-Grade Surface Samples Identify Multiple Targets
Sampling across the Kaoko Basin licences has identified several areas of copper-silver mineralisation. The reported peak values include copper grades of up to 37.8%, silver assays of 573 g/t and a calculated copper-equivalent grade of 45.49%. The company has mapped mineralisation over a strike length of around five kilometres, with multiple samples exceeding 10% CuEq at six prospects.
The reported results come from selective surface grab samples. These samples are collected from specific pieces of exposed material and cannot be assumed to represent the average grade of a mineralised zone or a potential deposit. Further exploration is therefore needed to determine whether the high-grade readings reflect isolated occurrences or a more extensive mineralised system. The addition of Okamborombonga expands the number of targets available for investigation and provides another area for the planned drilling programme.
Historical Drilling Provides Evidence of Subsurface Mineralisation
Previous exploration on the licences has returned an intersection of 13 metres grading 4.57% copper and 34 g/t silver. This historical result indicates that copper-silver mineralisation has been intersected below surface at the project. It provides a basis for further investigation, although additional drilling is required to establish the extent and continuity of the mineralised zones.
Serval’s planned maiden diamond drilling campaign is expected to begin in the fourth quarter of 2026. The programme will be an important step in testing the surface results and evaluating the geological characteristics of the identified targets. Drilling will need to produce repeatable intersections across suitable widths and at different locations to help establish whether the mineralisation forms a coherent system.
Serval Evaluates Funding for Expanded Exploration
Serval has joined AIM’s new Capital Access Window while evaluating a fundraising to finance a larger exploration programme. The company currently holds approximately £1.6 million in cash. Additional funding could enable it to investigate more of the Kaoko targets and extend the scope of exploration beyond what existing resources would support.
The amount of capital raised and the final scale of the drilling programme will influence how many prospects can be tested and how quickly the company can assess the wider mineralised area. Funding is therefore an important consideration as Serval moves from surface sampling and target identification towards systematic subsurface exploration.
Drilling to Determine the Scale of the Copper-Silver System
The Kaoko project’s next stage will focus on verifying the surface results through diamond drilling. While the assays have identified high-grade copper and silver occurrences, they do not yet establish a mineral resource or demonstrate the presence of an economically mineable deposit. The first campaign will need to assess mineralisation at depth, including its thickness, continuity and distribution across the identified prospects.
Serval’s immediate exploration objective is to determine whether the high-grade surface samples correspond to a broader copper-silver system with sufficient geological continuity to support future resource definition. The planned fourth-quarter drilling programme is expected to provide the next significant evidence in that assessment.
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