Versamet Royalties Corp
For the period ended Dec 31, 2025. Filed Mar 31, 2026.
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Dec 31, 2025 · Filed Mar 31, 2026
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EX-99.1 · Estimation Methodology
Estimation Methodology
The grade estimate for the Kiaka Gold deposit has been undertaken using the available RC and Diamond drillcore dataset. A mineralisation wireframe was developed using indicator kriging and a grade shell at a 0.3 g/t Au cutoff to act as a hard boundary for the estimate. Drillhole samples were composited to 3 m in preparation for the grade estimate. Multiple Indicator Kriging with change of support was selected as the most appropriate method for estimating Au for the Kiaka deposit. A block size of 20 mE x 25 mN x 10 mRL was selected as an appropriate block size for estimation based on the drill spacing (majority 25 m strike spacing with some 50 m), geometry of mineralisation and the likely potential future selective mining unit or SMU (i.e. appropriate for potential open-pit mining).
An SMU dimension of 5 mE x 12.5 mN x 5 mRL was selected as appropriate for support correction investigation. An indirect lognormal support correction was applied to emulate mining selectivity for the above SMU dimension.
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