Ms. Laurel Sayer reports

PERPETUA RESOURCES APPOINTS VICE PRESIDENT OF PROJECTS

Perpetua Resources Corp. has appointed Michael Wright as vice-president, projects, for Perpetua Resources, who will lead the Stibnite gold project, joining Perpetua Resources' executive team, effective immediately. Mr. Wright will lead the construction readiness activities currently under way for the project as the company continues to advance permitting. The Stibnite gold project is one of the highest-grade open-pit gold projects in the United States, is designed to apply a responsible mining approach to restore an abandoned mine site and is positioned to be the only domestic mined source of the critical mineral antimony.

"We are pleased to welcome Michael Wright to Perpetua Resources as we advance toward a construction decision for the Stibnite gold project," said Laurel Sayer, chief executive officer of Perpetua Resources. "As a key member of our executive team, Michael will report to me and oversee all engineering, procurement and construction management activities from selection, engineering, preconstruction planning to construction and commissioning. Michael brings a strong technical background and significant project experience, which complement our diverse leadership team, and we are thrilled to welcome another Idahoan to our team."

Mr. Wright is an accomplished mining project development professional with 20 years of experience and has a proven record of developing complex, multibillion-dollar projects around the world. He holds a bachelor of science degree from the University of Idaho and a master of science in construction management from the University of Washington. Mr. Wright has worked on owner teams and on engineering, procurement and construction management teams in the Americas, Europe, Africa and Asia. He has held project and construction leadership roles with Bechtel Corp., Ausenco Ltd., Fluor Corp. and Newmont Corp. and, most recently, Teck Resources Ltd.

"As an Idahoan myself, I am excited to join the Perpetua Resources team and help bring the Stibnite gold project back into operation and restore the site after a decade of study and regulatory review," said Mr. Wright. "I have always emphasized driving productivity while maintaining the highest safety and environmental standards, and I look forward to leading the development of this world-class gold-antimony deposit and supporting responsible economic growth for Idaho."

Perpetua anticipates a final environmental impact statement (FEIS) and draft record of decision (DROD) for the Stibnite gold project by the end of 2023 and a final record of decision (ROD) in early 2024 based on the latest schedule from the U.S. Forest Service. The company received a critical minerals award from the Department of Defence, under the Defense Production Act Title III program, to advance permitting and begin construction readiness for the project. Preconstruction activities are under way to be construction ready as early as the summer of 2024.

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' environmental, social and governance and sustainable mining goals, the project will be powered by the lowest carbon emission grid in the nation, and a portion of the antimony produced from the project will be supplied to Ambri, a United States-based company commercializing a low-cost liquid metal battery essential for the low-carbon energy transition. Perpetua Resources has been awarded a technology investment agreement of $24.8-million in Defense Production Act Title III 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 adopted formal ESG commitments.

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