Commencement Of Next Phase Cleanup Activities At Historical Mine Site

BOISE, ID - Perpetua Resources Corp. and Iron Woman Construction and Environmental Servicessuccessfully mobilized teams and equipment to site this week for the next round of voluntary legacy waste cleanup and water quality improvements in the historical Stibnite Mining District. This summer, Iron Woman has been engaged to help Perpetua Resources move more than 300,000 tons of legacy mine waste away from sensitive waterways on site and relocate it to areas where it can be more safely stored.

"Legacy restoration is a key pillar of our vision for Stibnite, and we believe our early cleanup work shows that responsible partnership with private industry can help improve environmental conditions at historical mine sites," said Laurel Sayer, CEO. "Last summer, we made significant progress and we look forward to building upon that success with the help of Iron Woman and the many local contractors and employees coming to Stibnite this summer.

Early mobilization included transporting dump trucks, loaders, office trailers, water tanks and reclamation supplies into Stibnite via Warm Lake Road and Johnson Creek Road. In accordance with Perpetua's transportation best practices, oversized loads and sensitive loads were escorted to site with pilot cars. Equipment will stay at Stibnite until early fall, when this phase of work is expected to be complete.

Safety is not something that happens by chance. It requires constant planning, relentless dedication, and accountability. When it comes to safety, we hold our team to the highest standards because our community deserves nothing less and we expect the same from our partners. We also ask for the community's support and encourage people in the area to be mindful on the roadways near Stibnite this summer."

Cleanup efforts will center around removing legacy mine waste from three areas of site that parallel the East Fork of the South Fork of the Salmon River. The locations of the work sit outside the footprint of Perpetua's proposed Stibnite Gold Project and would be left untouched if it wasn't for the Company's voluntary cleanup efforts. A crew of approximately 30 individuals will be based at site in a pre-existing exploration camp to reduce the need for daily commuting.