Europa Metals Ltd (AIM:EUZ, JSE:EUZ) said assays from the latest drilling at Toral in northwest Spain indicated mineralisation in all seven holes.
Environmental studies are also now nearing completion, it added. These will form part of the formal submission for a mining licence to the Mines Department of Castilla y León.
Best of the drill results included 7.95 metres (m) at 4.46% zinc equivalent, 4.95m at 22.7% and 6.65m at 8.1%.
High values of silver were identified in one of the holes.
Myles Campion, executive chairman and acting chief executive, said: "The current drill campaign is nearing its close and pleasingly all holes have intersected mineralisation as expected, with assays now received for all of the completed holes.
“The intersections reported to date have correlated well with the known existing resource.”