Silver Bow Mining (SBMT) Investor presentation summary

Investment highlights and project overview

• Controls 4,193 acres of mineral rights and 1,410 acres of surface lands in Butte, Montana, a prolific U.S. mining district.

• Focus on high-grade silver, zinc, gold, and lead, with additional critical minerals like manganese, copper, germanium, gallium, and indium.

• Properties are on private patented claims, enabling state-level permitting and strong community support.

• Over a century of digitized geological and mining data incorporated into current modeling.

• Recent acquisition of Goldsmith and Great Republic Blocks expands exploration potential.

Mineral resource estimate and exploration

• Inferred resource of 170M oz AgEq at 14.8 opt (4.28 opt Ag, 0.05 opt Au, 1.25% Pb, 4.59% Zn) within 11.48M tons, constrained above the water table.

• Resource estimate based on S-K 1300 and NI 43-101 standards, effective December 31, 2024.

• Surface drilling program (25,000 ft) targets resource expansion; initial results show significant enrichment and new vein discoveries.

• Underground rehabilitation underway at Chief Joseph Decline to support future drilling and bulk sampling.

• Multiple untested vein extensions and adjacent claim blocks offer significant exploration upside.

Historical production and district significance

• Butte Mining District produced 21.5B lbs Cu, 715M oz Ag, 2.92M oz Au, 4.9B lbs Zn, 855M lbs Pb, and 3.7B lbs Mn from 1880–2004.

• By 1906, Butte mines supplied ~20% of global copper; during WWI, nearly one-third of U.S. copper.

• Anaconda was once the largest copper producer, employing over 15,000 workers in Butte.

• Over 10,000 miles of underground workings and 49 miles of vertical shafts underlie Butte.