Mr. Chris Fogg reports

PERPETUA RESOURCES REPORTS RESULTS OF 2025 ANNUAL MEETING

Perpetua Resources Corp. has released the results of its annual general meeting, which was held on-line through a virtual meeting platform on May 15, 2025.

A total of 48,388,748 common shares were represented at the annual meeting or 67.90 per cent of the votes attached to all outstanding shares at the company's record date of March 21, 2025. The company's shareholders voted for the election of all director nominees listed in the company's management information proxy circular. Detailed results of the vote for the election of directors are provided in the attached table.

The directors were elected to hold offices until the next annual meeting of shareholders or until their respective successors are elected and qualified.

The company's shareholders also ratified the appointment of PricewaterhouseCoopers LLP, chartered accountants, as the company's independent registered public accounting firm for the fiscal year ending Dec. 31, 2025, at a remuneration to be set by the directors (99.76 per cent voted in favour, 0.12 per cent voted against and 0.13 per cent abstained).

Detailed voting results for the meeting are available on EDGAR.

About Perpetua Resources Corp.

Perpetua Resources, through its wholly owned subsidiaries, is focused on the exploration, site restoration and redevelopment of gold-antimony-silver deposits in the Stibnite/Yellow Pine district of central Idaho that are encompassed by the Stibnite gold project. The project is one of the highest-grade, open-pit gold deposits in the United States and is designed to apply a modern, responsible mining approach to restore an abandoned mine site and produce both gold and the only mined source of antimony in the United States. Further advancing Perpetua Resources' ESG (environmental, social and governance) and sustainable mining goals, the project will be powered by one of the lowest-carbon-emission grids in the nation and a portion of the antimony produced from the project will be supplied to Ambri, a U.S.-based company commercializing a low-cost liquid metal battery essential for the low-carbon energy transition. Perpetua Resources has been awarded a TIA (technology investment agreement) of $59.2-million in DPA (Defense Production Act) funding to advance construction readiness and permitting of the project. Antimony trisulphide from Stibnite is the only known domestic source of antimony that can meet U.S. defence needs for many small arms, munitions and missile types. In addition to the company's commitments to transparency, accountability, environmental stewardship, safety and community engagement, Perpetua Resources has adopted formal ESG commitments.

We seek Safe Harbor.