Middle Island Resources (ASX: MDI) has unveiled significant, large-scale polymetallic targets at its Tisovik prospect in Serbia, underscoring an aggressive exploration strategy that is rapidly expanding the company's geological potential in the region.
The announcement details extensive soil sampling results defining a 5km strike length of silver-lead-zinc-antimony anomalies, with further exploration planned.
Tisovik: 5km Polymetallic Target Defined
Expanded soil sampling at Tisovik, part of the company's Bobija Project, has defined broad and coherent silver-lead-zinc-antimony anomalies.
These anomalies extend across an impressive 5km strike length, identifying multiple targets including Tisovik, Crvene Stene, and Kozila.
The latest program involved 243 soil samples, with peak assays revealing 7.1 g/t Ag, 4,685 ppm Pb, 969 ppm Zn, and 1,049 ppm Sb.
Crucially, these anomalies remain open, particularly to the north where previously untested limestone units exist.
This area represents a 10 km2 untested zone targeted for future work.
The polymetallic potential of Tisovik is further supported by historical high-grade lead mining, which previously yielded intersections such as 4m at 62.4% Pb.
Aggressive March 2026 Exploration Plan
The company is gearing up for a substantial exploration push, with further northward soil sampling and follow-up exploration slated for March 2026.
This next phase will include gravity surveys, trenching, and drilling across the expanded target areas.
To support this intensified activity, Middle Island Resources is already expanding its field team in Serbia.
The broader exploration efforts will also see drilling at the Bobija Project resume.
Bobija Project Context
The Tisovik prospect is a key component of Middle Island Resources' broader Bobija Project located in Serbia.
Previous exploration at Bobija has already delivered promising results.
Maiden reverse circulation (RC) drilling in earlier programs, as reported in the Quarterly Activities Report & Cashflow (January 2026), revealed thick, high-grade gold-silver-copper-lead-zinc intercepts.
Channel sampling at Bobija also identified notable high-grade zones, reinforcing the project's overall prospectivity.
Specifically, prior soil sampling at Tisovik had already indicated substantial lead and zinc anomalism, with peak lead at 2733 ppm and zinc at 899 ppm, which has now been significantly expanded upon.
Broader Serbian Strategy & Risks
The company's strategic focus is increasingly directed towards its newly acquired Serbian assets, following the successful acquisition of Konstantin Resources.
This acquisition significantly expanded Middle Island Resources' portfolio within the prolific Western Tethyan Belt.
As an exploration company, Middle Island Resources faces inherent exploration uncertainty.
Soil anomalies, while highly encouraging, may not always translate into economic mineralisation, and success is ultimately contingent on drill results and further data.
The ambitious exploration plans outlined for March 2026, including drilling, represent forward-looking statements, but their success hinges on the outcomes of future field work and data analysis.
The company has secured a A$3.4 million placement to support its expanded portfolio, but managing cash burn rate and securing future funding remain crucial.
