GBM Resources (GBM) investor relations material

Strategic position and resource base

• Holds a dominant land position in the Drummond Basin, one of Australia's most underexplored epithermal gold belts, with a total mineral resource of 1.84Moz Au across Twin Hills, Yandan, and Mt Coolon projects.

• Twin Hills hosts 1.0Moz Au, Yandan 0.51Moz Au, and Mt Coolon 0.33Moz Au, with 90% of resources on granted mining leases and 59% in Measured & Indicated JORC categories.

• Multiple high-grade intersections have been reported, including 17m @ 317.4g/t Au and 146m @ 9.8g/t Au, indicating significant exploration upside.

• Large portfolio of drill-ready targets and prospects, with systematic exploration underway.

• Led by an experienced board and management team with a track record of delivery.

Twin Hills project highlights

• 50,000m multi-phase drilling program underway, targeting rapid expansion of the 1.0Moz resource and infill of resource model gaps.

• 309 and Lone Sister deposits remain open in multiple directions, with recent drilling confirming high-grade mineralisation outside the current resource estimate.

• Notable intersections include 37m @ 5.00g/t Au and 29m @ 3.13g/t Au at 309, and 146m @ 9.81g/t Au at Lone Sister.

• Over 14km of the Twin Hills corridor remains underexplored, with multiple untested anomalies and clear epithermal structural zones.

Yandan project and exploration

• Yandan project contains 0.51Moz Au, with the East Hill deposit showing high-grade epithermal veining and significant intersections such as 191m @ 4.0g/t Au.

• Geophysical surveys and drilling are targeting deeper feeder zones and new discoveries, with large-scale low-grade halo mineralisation identified.

• Only 8% of the Yandan project area has been soil sampled, highlighting substantial greenfields exploration potential.