SBM.ASX: 15-Mile Processing Hub Mineral Resources Estimate Increases

15-Mile Processing Hub Mineral Resources Estimate Increases

Stock	ST Barbara Ltd (SBM.ASX)
Release Time	28 Jul 2026, 8:26 a.m.
Price Sensitive	Yes

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St Barbara Increases 15-Mile Hub Mineral Resources by 20%

Key Points

15-Mile Processing Hub Mineral Resources increased by 20% to 2.5 Moz
Updated estimate includes historical drilling data and revised methodology
New drill targets identified for FY27
Feasibility Study expected in Q4 Jun FY27

Full Summary

St Barbara Limited has announced a 20% increase in the Mineral Resources Estimate for the 15-Mile Processing Hub Project, now totaling 2.5 Moz. This increase is due to updated geological interpretations, revised estimation methodology, and additional historical drilling data. The historical drilling data, totaling 436 additional drill holes for 71,000 meters, was validated and found suitable for inclusion. The updated estimate incorporates the historical data, resulting in a more selective interpretation of mineralized volumes and increased resource potential. An updated Pre-Feasibility Study is expected by the end of Q1 Sep FY27, with a Feasibility Study anticipated in Q4 Jun FY27.

Outlook

St Barbara anticipates further exploration and drilling at the 15-Mile Mine in FY27, with an updated Feasibility Study expected in Q4 Jun FY27.