Serval Resources PLC (LSE:SRVL) said initial field work in Namibia has confirmed copper mineralisation at surface across two key licences in the Kaoko Basin, giving the explorer a stronger base for prioritising follow-up targets. The AIM-listed company said geological mapping on EPL 7081 and EPL 7079 confirmed multiple historically defined copper showings in outcrop, while also identifying new surface copper mineralisation on both licences.