FAQs

Perpetua’s vision is to provide the U.S. with a source of the critical mineral antimony, operate one of the highest grade open pit gold mines in the country and restore and redevelop an abandoned brownfield site. We can take an area abandoned after 100 years of mining activity and use a sustainable approach to restore the environment and develop a modern mining project helping power a lower carbon future through critical mineral production.

Based on our 2020 Feasibility Study, Perpetua reported 6.0 million ounces of Measured and Indicated Gold Resources, including 4.8 million ounces of Reserves and 206 million pounds of Measured and Indicated Antimony Resources, including 148 million pounds of Reserves. The Stibnite Gold Project is expected to produce approximately 4.2 million ounces of gold and 115 million pounds of the critical mineral antimony over its 15 year life.

Antimony is one of 35 federally designated critical minerals for its use in the national defense, technology, and green energy sectors. It is also a critical mineral in Canada, Australia, and the European Union. Antimony strengthens alloys and makes them resistant to corrosion. It is used in munitions for national defense, flame retardants, wind and hydro turbines, solar panels, large storage batteries, spaceships, cell phones, semiconductors, plastics, and cable sheathing. Currently, there is no mined source of antimony in the United States. China, Russia, and Tajikistan control more than 90 percent of the global production.

Perpetua Resources’ Stibnite Gold Project is currently being reviewed by the U.S. Forest Service under the National Environmental Policy Act (NEPA). The NEPA process is iterative and uses data, scientific analysis and public feedback to reduce potential impacts and identify project improvements. The U.S. Forest Service is expected to release a Supplemental Draft Environmental Impact Statement (SDEIS) on the project for public review in Q1 2022. The SDEIS is focused on Perpetua’s proposed plan with two potential access routes for the remainder of the NEPA process. Our proposed plan is a direct result of improvements Perpetua made following the public input received on the Draft Environmental Impact Statement (DEIS) and aligns with our 2020 Feasibility Study. A Final Environmental Impact Statement (FEIS) and draft Record of Decision is expected to be published in Q4 2022, with the final Record of Decision anticipated in the first half of 2023.

Our company’s actions demonstrate our deep commitment to ESG.

Environment: We are supporting America’s transition to 100 percent clean energy by providing a portion of our antimony to commercialize large-capacity energy storage batteries. We also continue to identify ways to lessen our environmental impact at the site.

Social: We believe in being a good corporate citizen. Transparency, direct communication, and involvement in our community have helped us build a better project that can positively contribute to our region and the lives of Idahoans.

Governance: There is no replacement for doing the right thing. We focus on meeting or exceeding all regulatory requirements and have instilled good governance practices into our business.

We own 100 percent of the Stibnite Gold Project. In August 2021, Perpetua Resources entered into an agreement to provide a portion of the antimony produced at the site to support the commercialization of Ambri’s leading liquid metal battery for large-scale storage of clean energy. Earlier in 2021, the company signed a collaboration agreement with the United States Antimony Corporation (USAC) to study the potential of processing antimony concentrate from Stibnite at USAC’s processing facilities.

The proceeds will be used to continue permitting, advance early restoration & field operations, and for general corporate purposes. We are well-capitalized to advance through the permitting process.