Custer County Exploration Properties

Overview

The Red Star silver exploration property is a brownfield site located on Company-owned patented claims 330 meters northwest of the Empire Open Pit Reserve. Exploratory drilling has intercepted significant silver, lead, copper, gold, and zinc mineralization. Further exploration is needed to assess the size of the opportunity.

Mineral Resource Statement for the Red Star Resource Area, Hard Rock Consulting

April 10, 2019

Mineral resources are not mineral reserves and do not have demonstrated economic viability. There is no certainty that all or any part of the mineral resources estimated will be converted into mineral reserves.

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Drilling Summary

2018 and 2020

• Drilling results indicate silver grades as high as 1,100 g/tonne and lead grades above 21%.
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2021

• Ground magnetics survey performed in 2021 identified three new subsurface magnetic anomalies east of Red Star discovery outcrop.
• Subsequent drilling results are consistent with or exceed those reported in Red Star maiden resource; copper, gold, and zinc are also encountered in significant quantities.
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Technical Reports

Summary of the Updated Resources for the Empire Mine Project

Field Review Red Star & White Knob Mine Group

Geologic Mapping and Structural Analysis in the North Pit Region, Mackay Mining District

Overview

The historically mined high-grade Horseshoe and White Knob claim blocks produced average grades of 204 g/t silver, 19% lead, 6.5% zinc, and 0.73% copper. A 2020 report called, “Geologic Mapping and Structural Analysis in the North Pit Region, Mackay Mining District,” confirms the likely extension of Red Star through the Horseshoe and White Knob claim blocks.
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Exploration

• 2018 exploration program surface sampling assays as high as 9.19% copper, 580 g/t silver and 20% lead.