Great Western Mining (GWMO) 121 Mining Investment Forum presentation summary

Project overview

• Five copper prospects identified within a 6 km radius in Mineral County, Nevada, including one established skarn resource and two porphyry targets with positive drill results and strong anomalies.

• Two early-stage prospects show high-grade surface samples and evidence of a broader porphyry/skarn system in an emerging copper camp.

Key prospects and resources

• M2 is an established resource with 4.3 Mt @ 0.45% Cu and significant expansion potential.

• M4 features a mineralized breccia pipe above a large, undrilled chargeability anomaly, with best drill intercept of 42.9 m @ 0.23% Cu.

• West Huntoon displays a large, expanding copper-in-soils anomaly, overlapping magnetic and chargeability anomalies, and is centered on a granite with fluid release textures.

• M5 and Smith prospects show further copper anomalism, with local granitoids and target-type textures; Smith Mine includes a high-grade outlier of 2.79% Cu.

Regional context and exploration potential

• The regional granite suite exhibits fertile geochemical signatures, both in whole rock and zircon, supporting further exploration.

• Most prospects are exposed at surface, with mineralization extending to the edge of volcanic cover.

• The wider region includes additional prospects such as Rock House and Jack Springs, with JV processing operations planned.