Resolution Minerals (RML) Investor presentation summary

Project and strategic positioning

• Horse Heaven is a 100%-owned, 14,580-acre Idaho project adjoining Perpetua Resources’ Stibnite Gold Project; targets antimony, tungsten and gold.

• The project includes Antimony Ridge and Golden Gate, with historical antimony and tungsten production and a proposed domestic mine-to-metal processing platform.

• FAST-41 coverage supports permitting advancement for Golden Gate and Antimony Ridge; the project is also a member of the U.S. Defense Industrial Base Consortium.

• Presentation cites China at ~85% of global antimony processing, highlighting the U.S. processing bottleneck targeted by the proposed development strategy.

Gold exploration

• Golden Gate South hole HH-GG26-003C returned 305.7m at 0.64 g/t Au from surface; Golden Gate North has a 500m x 200m x 300m zone described as open.

• Golden Gate North 2025 discovery hole returned 253m at 1.5 g/t Au; the broader target extends at least 2,000m from North to South and remains open.

• A 12,200m, 42-hole 2026 core program was completed; assays for 33 holes were pending, with a maiden Golden Gate resource estimate targeted for Q1 2027.

Tungsten opportunity

• Golden Gate is a past-producing tungsten mine; historical production cited ~8,000 tonnes of ore at ~1.5% WO3 in the 1950s and 1.8%-2% WO3 in the 1970s-80s.

• Stockpiles are cited at ~2,000 tonnes at the mill and ~4,000 tonnes at the mine portal; these are historical/foreign estimates, not JORC 2012 mineral resources or reserves.

• Scheelite was identified in drilling, with a tungsten soil anomaly extending over 2,000m; trial processing of stockpile feed is planned for 2027.

• Johnson Creek Mill and 25 acres of private land with power and water were acquired; studies are underway on restart potential and underground workings.