Base case economic evaluation completed across the five mineral assets

Xstreco completed an internal base case economic evaluation across all five of its mineral assets on 20 May 2025. The work tested the case for taking each asset forward to operation and production, and set out, for each of them, the capital that development would require and the production output the base case assumes. The evaluation draws on the technical programmes completed on each property, recorded separately, and it establishes a common basis on which the five assets can be compared. The evaluation is internal work. It is not a preliminary economic assessment, a pre-feasibility study or a feasibility study within the meaning of NI 43-101 or JORC, and as a privately held Swiss group we are not subject to those regimes. No figures, results or conclusions are published, and no mineral resource or reserve is declared for any asset.

Xstreco AG