Perpetua Resources (PPTA) investor relations material

Project highlights and economic impact

• Project features 4.8 million ounces of gold reserves and 148 million pounds of antimony, with gold driving over 95% of project NPV.

• Construction is underway following federal approvals, shifting focus from permitting to development.

• Stibnite is the only antimony reserve in the U.S., critical for national security and manufacturing.

• Forecasted average gold production is 300,000 ounces per year, with over 460,000 ounces annually in the first four years.

• All-in sustaining costs are projected at $498/oz for the first four years and $833/oz over the mine life.

Critical minerals and supply chain significance

• Stibnite is the only near-term domestic source of antimony, a mineral dominated globally by China.

• U.S. government support includes over $80 million in Department of Defense awards and inclusion in a list of 10 priority projects.

• Tungsten, another critical mineral, has high exploration potential with recent discoveries and historical significance.

• Recent export bans from China on antimony and tungsten have increased the strategic importance of domestic production.

Environmental restoration and community engagement

• Integrated environmental restoration aims to improve water quality, reopen fish passages, and remediate legacy mining impacts.

• Project leverages modern mining and remediation methods on a brownfield site.

• Strong community and shareholder support, with major investments from Agnico Eagle, JPMorgan Chase, and Paulson & Co.