GBM Resources (GBM) Investor Presentation summary

Corporate overview and financials

• Market capitalization stands at A$9.2 million with ~A$1.3 million in cash and receivables as of April 2025.

• Convertible note of ~A$6.1 million due December 2025, with partial repayments underway.

• Major shareholders include Collins Street Asset Mgmt (16.5%) and Citicorp Nominees (11.3%).

• Over 1,171 million ordinary shares on issue; top 20 shareholders hold 65%.

Resource base and project portfolio

• Total attributable resources (if all farm-ins complete) are ~900 koz Au, with 90% on permitted mining leases.

• Key deposits: 309 (10.6 Mt @ 1.5 g/t Au for 0.52 Moz), Lone Sister (12.5 Mt @ 1.2 g/t Au for 0.48 Moz), Yandan & Illamahta (15.9 Mt @ 1.0 g/t Au for 0.51 Moz).

• Drummond Basin hosts a district-scale epithermal gold system with >44 Moz gold resources regionally.

• White Dam gold mine produced ~A$2M in gold sales in the December quarter; sale process ongoing.

Exploration and development highlights

• Twin Hills and Yandan projects are the focus, with systematic exploration and geophysics planned for 2025–2026.

• Twin Hills: 1.0 Moz Au resource, fully open at depth, with high-grade intersections and bulk mining potential.

• Yandan: 515 koz Au resource, high-grade East Hill zone (1.1 Mt @ 5.7 g/t Au for 200 koz), multiple underexplored systems.

• Illamahta: 2.9 Mt @ 0.8 g/t Au for 55 koz, shallow oxide mineralization, untested at depth.