Mineral Resource Increased to 2.07 Million Ounces

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Stock Astral Resources NL (AAR.ASX)
Release Time 21 Apr 2026, 8:25 a.m.
Price Sensitive Yes
 Mineral Resource Increased to 2.07 Million Ounces
Key Points
  • Mandilla Mineral Resource Estimate (MRE) increased by 22% to 1.74Moz
  • Inaugural Measured Resource of 57koz declared for Theia deposit
  • Consolidated Astral Group MRE now stands at 2.07Moz
Full Summary

Astral Resources NL has reported an updated JORC Mineral Resource Estimate (MRE) for its 100%-owned Mandilla Gold Project, located 70km south of Kalgoorlie in Western Australia. The Mandilla MRE, prepared by independent consultant Cube Consulting, totals 54Mt at 1.0g/t Au for 1.74Moz of contained gold, representing a 22% increase in contained metal compared to the previous MRE. Importantly, the update includes a maiden Measured Mineral Resource of 1.3Mt at 1.3g/t Au for 57koz of contained gold for the Theia deposit, following a 99-hole (11,121m) in-fill drilling program. The Theia deposit remains the cornerstone of the Mandilla project, accounting for 80% of the total MRE. Including the MREs at the Feysville and Spargoville projects, the consolidated Astral Group MRE is now estimated at 62Mt at 1.1g/t Au for 2.07Moz of contained gold. The company is advancing the Mandilla Definitive Feasibility Study, with a focus on evaluating an underground mining option for the Theia deposit, which remains open at depth. Astral is also progressing exploration activities across its broader portfolio, including testing for depth extensions at Theia and planning for extensional and in-fill drilling at the Feysville and Spargoville projects.

Outlook

Astral is evaluating an underground mining option for the Theia deposit, which remains open at depth. The company is also advancing the Mandilla Definitive Feasibility Study and progressing exploration activities across its broader portfolio, including testing for depth extensions at Theia and planning for extensional and in-fill drilling at the Feysville and Spargoville projects.