• Additional drilling confirms broad zones of high-grade silver-lead-zinc mineralisation.
• All nine new drillholes intersected significant mineralisation.
• Best results include 96.6 m @ 604 g/t AgEq.

Polymetals Resources Ltd (ASX: POL) reports strong assay results from its ongoing underground diamond drilling program at the Endeavor Mine, Cobar NSW. The latest results continue to validate the Company's reinterpretation of the historic 1996 subsidence. All nine new drillholes have intersected significant silver-lead-zinc mineralisation within the target area, confirming broad, continuous zones of high-grade mineralisation immediately adjacent to existing underground development. The best results include 96.6 m @ 604 g/t AgEq, 48.4 m @ 666 g/t AgEq, 68.1 m @ 429 g/t AgEq, 45.7 m @ 571 g/t AgEq, and 30.0 m @ 718 g/t AgEq. The consistency of the results has increased geological confidence and supports the Company's view that the upper Main Lode has the potential to become a meaningful addition to the Endeavor mining inventory. Drilling is now focused on defining mineralisation suitable for Mineral Resource estimation.

The Company intends to complete an updated Mineral Resource estimate for the upper Main Lode later in 2026.