Press Releases

2021, 2022 Guest User 2021, 2022 Guest User

Perpetua Resources Welcomes Use of Defense Production Act for Battery Metals

Perpetua Resources Corp. applauds that U.S. President Biden has deemed domestic mining of critical minerals for large-capacity storage batteries essential to America’s national security and instructed the U.S. Department of Defense to secure the supply of battery metals through the authorities granted by the Defense Production Act (“DPA”). Perpetua Resources’ proposed gold and antimony project in Idaho, the Stibnite Gold Project (“Project”), would provide the only domestically mined source of the critical mineral antimony which is essential for liquid metal, large-capacity battery technology.


U.S. President Biden invokes the Defense Production Act to secure domestic critical minerals for large-capacity storage batteries.

Through partnership agreement with Ambri, antimony from Perpetua Resources is poised to power American-based grid-scale energy storage battery.

Perpetua Resources’ Stibnite Gold Project would provide the only domestically mined source of the critical mineral antimony; currently China, Russia and Tajikistan control 90% of the global antimony market.

BOISE, ID – Perpetua Resources Corp. (Nasdaq: PPTA / TSX: PPTA) (“Perpetua Resources” or “Perpetua” or the “Company”) applauds that U.S. President Biden has deemed domestic mining of critical minerals for large-capacity storage batteries essential to America’s national security and instructed the U.S. Department of Defense to secure the supply of battery metals through the authorities granted by the Defense Production Act (“DPA”). Perpetua Resources’ proposed gold and antimony project in Idaho, the Stibnite Gold Project (“Project”), would provide the only domestically mined source of the critical mineral antimony which is essential for liquid metal, large-capacity battery technology. 

“President Biden’s actions underscore the need to swiftly and significantly increase domestic production of antimony and other critical minerals essential to securing our clean energy future,” said Laurel Sayer, President and CEO of Perpetua Resources. “Prioritizing responsible mineral development is a clear recognition that serious action is needed to address the vulnerabilities associated with energy and mineral dependence. A resilient and diversified energy grid will require the support of a wide variety of battery technologies and associated minerals. Antimony based battery technologies offer an alternative in the market and their inclusion in the mix of energy storage options will help limit overreliance on any one critical mineral."

In 2021, Perpetua entered into a long-term partnership agreement with Ambri, an American company developing an antimony-based liquid metal battery which is designed to provide affordable and reliable grid-scale storage to facilitate the decarbonization of energy grids. Under the agreement, antimony from the Stibnite Gold Project is expected to power over 13 Gigawatt hours of energy storage which is equivalent to over 8 times the total additions to the U.S. energy storage market in 2020 and enough to power approximately 1 million American homes with solar power on a daily basis over the anticipated 20+ year lifespan of the batteries. This partnership highlights the role modern mining can play in addressing some of the world’s climate change challenges and directly links the restoration of the historical Stibnite mining district to achieving climate change solutions.

Presidential Determination No 2022-11 comes after weeks of mounting pressure from bipartisan congressional leaders calling for action to end foreign reliance on critical minerals. In a joint letter to the President, Senators Murkowski, Manchin, Risch and Cassidy urged the Administration to use the Defense Production Act to develop domestic critical mineral production to support national security and energy independence.

“Made in America starts with mined in America,” said Sayer. “We appreciate the growing urgency and bipartisan recognition that a safe, reliable, and responsible supply chain must begin right here at home and the Stibnite Gold Project is prepared to be part of the solution by providing the only domestically mined source of antimony for both energy storage products and national security platforms.”

Citing dependance on foreign sources and an inability to meet the growing demands of a clean energy economy, the Determination orders the Secretary of Defense to “create, maintain, protect, expand or restore sustainable and responsible production” of critical and strategic minerals needed for large-capacity batteries among other products. The Determination also directs the Secretary of Defense to consult with the Secretary of Agriculture, the Secretary of the Interior and the Secretary of Energy.

The Project is currently progressing into the later stages of the permitting process, and the Company anticipates the circulation of a preliminary Supplemental Draft Environmental Impact Statement (“SDEIS”) for cooperating agency review in the second quarter of 2022, with public release shortly thereafter in the third quarter of 2022.

Critical Project for the American Future

The Stibnite Gold Project in central Idaho is designed to restore environmental conditions at a historical mine site while responsibly developing one of the highest-grade, open pit gold resources in the United States and becoming the only domestically mined source of the critical mineral antimony.

With key applications in energy and defense, securing a domestic supply of antimony is more important than ever. Antimony is a key component for grid storage battery technology and Perpetua is uniquely positioned to play a vital role in the decarbonization of the world through its supply agreement with Ambri. Also a vital component in defense applications, antimony was listed by the Department of Defense (“DOD”) as a shortfall material in the 100-Day Supply Chain Review Report (June 2021) and in DOD’s most recent National Defense Stockpile and Annual Operations and Planning Report (February 2022). 

The U.S. Geological Survey recently reported that foreign reliance is growing, with China, Russia and Tajikistan controlling 90% of the world supply of antimony and no domestically mined sources (USGS, 2022 Mineral Commodity Summary).    

For further information about Perpetua Resources Corp., please contact:

Chris Fogg

Investor Relations Manager

chris.fogg@perpetuacorp.us

Info@perpetuacorp.us

Mckinsey Lyon

Vice President External Affairs

media@perpetua.us

Website: www.perpetuaresources.com

About Perpetua Resources and the Stibnite Gold Project

Perpetua Resources Corp., 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 and sustainable mining goals, the Project will be powered by the lowest carbon emissions grid in the nation and a portion of the antimony produced from the Project will be supplied to Ambri, a US-based company commercializing a low-cost liquid metal battery essential for the low-carbon energy transition. In addition to the company’s commitments to transparency, accountability, environmental stewardship, safety and community engagement, Perpetua Resources adopted formal ESG commitments which can be found here.

Forward-Looking Information

Statements contained in this news release that are not historical facts are "forward-looking information" or "forward-looking statements" (collectively, "Forward-Looking Information") within the meaning of applicable Canadian securities legislation and the United States Private Securities Litigation Reform Act of 1995. Forward-Looking Information includes, but is not limited to, disclosure regarding possible events, next steps and courses of action including actions to be taken by the USFS, the State of Idaho, the  U.S. Federal government and other government agencies and regulatory bodies; plans with respect to the Stibnite Gold Project and the success of such project; and  our and Ambri, Inc.’s ability to perform under the supply agreement, which agreement is subject to certain conditions, including identification of one or more refiners to transform our antimony concentrate into antimony metal, and mutual agreement on certain material terms, including volume and pricing. In certain cases, Forward-Looking Information can be identified by the use of words and phrases or variations of such words and phrases or statements such as "anticipate", “expect” “plan”, “likely”, “believe”, “intend”, “forecast”, “project”, “estimate”, "potential", "could", "may", "will", "would" or “should”. In preparing the Forward-Looking Information in this news release, Perpetua Resources has applied several material assumptions, including, but not limited to, assumptions that the current exploration, development, environmental and other objectives concerning the Stibnite Gold Project can be achieved and that its other corporate activities will proceed as expected; that we and Ambri will be able to agree on the terms of the Ambri agreement; that we will find a refinery to transform our antimony concentrate into antimony metal; that Ambri will successfully develop, manufacture and market its proposed batteries; that general business and economic conditions will not change in a materially adverse manner and that permitting and operations costs will not materially increase.  Forward-Looking Information involves known and unknown risks, uncertainties and other factors which may cause the actual results, performance or achievements of Perpetua Resources to be materially different from any future results, performance or achievements expressed or implied by the Forward-Looking Information. Such risks and other factors include, among others, changes in laws and regulations and changes in the application of standards pursuant to existing laws and regulations which may result in unforeseen results in the permitting process; uncertainty surrounding input to be received from regulators and community stakeholders; risks related to unforeseen delays in the review process; risks related to opposition to the Project; risks related to increased or unexpected costs in operations or the permitting process; risks that estimates used in budgeting and financial statements may prove to be incorrect; risks related to the outcome of litigation and potential for delay of the Project, as well as those factors discussed in Perpetua Resources' public filings with the U.S. Securities and Exchange Commission (the “SEC”) and its Canadian disclosure record. Although Perpetua Resources has attempted to identify important factors that could affect Perpetua Resources and may cause actual actions, events or results to differ materially from those described in Forward-Looking Information, there may be other factors that cause actions, events or results not to be as anticipated, estimated or intended. There can be no assurance that Forward-Looking Information will prove to be accurate, as actual results and future events could differ materially from those anticipated in such statements. Accordingly, readers should not place undue reliance on Forward-Looking Information. For further information on these and other risks and uncertainties that may affect the Company’s business, see the “Risk Factors” section of the Company’s filings with the SEC, which are available at www.sec.gov and with the Canadian securities regulators, which are available at www.sedar.com. Except as required by law, Perpetua Resources does not assume any obligation to release publicly any revisions to Forward-Looking Information contained in this news release to reflect events or circumstances after the date hereof or to reflect the occurrence of unanticipated events.

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Perpetua Resources Strengthens Board with Appointment of Laura Dove

Perpetua Resources Corp. announced the appointment of Laura Dove to the Company’s Board of Directors effective immediately.


 Extensive public affairs and government relations expertise further enhances the Board’s broad experience and gender diversity.

Appointment further strengthens Perpetua’s ability to support America’s critical mineral supply chains.

BOISE, ID – Perpetua Resources Corp. (Nasdaq: PPTA / TSX: PPTA) (“Perpetua Resources” or “Perpetua” or the “Company”) announced the appointment of Laura Dove to the Company’s Board of Directors effective immediately.

Laura Dove brings three decades of external affairs and stakeholder management experience to Perpetua. Ms. Dove most recently served as Senior Director of the Ford Motor Company where she led federal government relations, focused on the car maker’s move to electrification and helping Ford promote a robust critical minerals supply chain policy. She also served as Chair of the Executive Committee of the Alliance for Automotive Innovation and as the Washington representative for the Business Roundtable, U.S. Chamber of Commerce and National Association of Manufacturers. Prior to her role with Ford, Ms. Dove served as Secretary for the Majority of the U.S. Senate for seven years. Ms. Dove holds a Master’s degree in English from the University of Virginia and a Bachelor of Arts  degree in English and Music from the University of North Carolina, Chapel Hill.

“I am excited to welcome Laura to Perpetua’s Board at a time when our nation’s critical mineral supply chain is particularly at risk,” said Marcelo Kim, Chairman of Perpetua Resources. “Laura brings unique perspectives and relevant experience which will further help Perpetua establish itself as having one of America’s most important critical mineral projects and a world class gold project. These complementary economic drivers for our project reinforce one another, which I believe makes the project a more durable resource for U.S. economic and national security.”

Perpetua’s vision is to develop one of the highest-grade open pit gold mines in the U.S., provide the country with a critical mineral required for national security and clean energy while restoring an abandoned mine site. As a publicly traded company, Perpetua Resources is dedicated the highest corporate governance practices. The Company is also committed to building and maintaining a culture of  diversity, equity and inclusion from the top down, beginning with its Board of Directors. With the appointment of Ms. Dove, Perpetua’s Board has over 20% female representation and the Perpetua team has achieved over 40% gender diversity with over 65% female senior leadership.

“From the beginning, Perpetua has been focused on being part of the solution,” said Ms. Dove. “I am thrilled to be part of a modern mining team that prioritizes community partnerships and has designed a project intended to leave the environment better than when they found it. Perpetua is uniquely positioned to play a crucial role in mitigating our nation’s critical mineral supply chain risks and I am excited to join the Board.”

For further information about Perpetua Resources Corp., please contact:

Chris Fogg

Investor Relations Manager

chris.fogg@perpetuacorp.us

Info@perpetuacorp.us

Mckinsey Lyon

Vice President External Affairs

media@perpetua.us

Website: www.perpetuaresources.com

About Perpetua Resources and the Stibnite Gold Project

Perpetua Resources Corp., 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 and sustainable mining goals, the Project will be powered by the lowest carbon emissions grid in the nation and a portion of the antimony produced from the Project will be supplied to Ambri, a US-based company commercializing a low-cost liquid metal battery essential for the low-carbon energy transition. In addition to the company’s commitments to transparency, accountability, environmental stewardship, safety and community engagement, Perpetua Resources adopted formal ESG commitments which can be found here.

Forward-Looking Information

Statements contained in this news release that are not historical facts are "forward-looking information" or "forward-looking statements" (collectively, "Forward-Looking Information") within the meaning of applicable Canadian securities legislation and the United States Private Securities Litigation Reform Act of 1995. Forward-Looking Information includes, but is not limited to, disclosure regarding possible events, next steps and courses of action including plans with respect to the Stibnite Gold Project and the success of such project. In certain cases, Forward-Looking Information can be identified by the use of words and phrases or variations of such words and phrases or statements such as "anticipate",  “expect” “plan”, “likely”, “believe”, “intend”, “forecast”, “project”, “estimate”, "potential", "could", "may", "will", "would" or “should”. Forward-Looking Information in this news release are based on certain material assumptions and involve known and unknown risks, uncertainties and other factors which may cause the actual results, performance or achievements of Perpetua Resources to be materially different from any future results, performance or achievements expressed or implied by the Forward-Looking Information. Such risks and other factors include those factors discussed in Perpetua Resources' public filings with the U.S. Securities and Exchange Commission (the “SEC”) and its Canadian disclosure record. Although Perpetua Resources has attempted to identify important factors that could affect Perpetua Resources and may cause actual actions, events or results to differ materially from those described in Forward-Looking Information, there may be other factors that cause actions, events or results not to be as anticipated, estimated or intended. There can be no assurance that Forward-Looking Information will prove to be accurate, as actual results and future events could differ materially from those anticipated in such statements. Accordingly, readers should not place undue reliance on Forward-Looking Information. For further information on these and other risks and uncertainties that may affect the Company’s business, see the “Risk Factors” section of the Company’s filings with the SEC, which are available at www.sec.gov and with the Canadian securities regulators, which are available at www.sedar.com. Except as required by law, Perpetua Resources does not assume any obligation to release publicly any revisions to Forward-Looking Information contained in this news release to reflect events or circumstances after the date hereof or to reflect the occurrence of unanticipated events.

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Perpetua Resources Promotes Jessica Largent to Chief Financial Officer

Perpetua Resources Corp. announced today that Jessica Largent will be appointed Chief Financial Officer effective April 1, 2022. Ms. Largent will replace Chris Foster who has served as Chief Financial Officer on a contract basis since March 2021.


Perpetua team further strengthened by hiring of Chris Fogg

BOISE, ID – Perpetua Resources Corp. (Nasdaq: PPTA / TSX: PPTA) (“Perpetua Resources” or “Perpetua” or the “Company”) announced today that Jessica Largent will be appointed Chief Financial Officer effective April 1, 2022. Ms. Largent will replace Chris Foster who has served as Chief Financial Officer on a contract basis since March 2021.

Ms. Largent joined the Perpetua team in February 2021 as Vice President, Finance and Investor Relations and has been instrumental in leading the finance team through a number of recent milestones including listing the Company’s shares on the NASDAQ stock exchange and successfully completing a $57.5 million public equity offering in August 2021 to ensure Perpetua is well capitalized as it advances the Stibnite Gold Project through the final stages of the permitting process. Under Ms. Largent’s leadership, Perpetua entered into a supply agreement to provide a portion of antimony production from the Stibnite Gold Project to Ambri Inc., establishing the foundation to help facilitate the decarbonization of energy grids in the U.S. and around the world.

“I am excited about Jessica’s promotion to Chief Financial Officer,” said Laurel Sayer, President and Chief Executive Officer of Perpetua Resources. “Jessica has a wealth of industry knowledge and her experience and proven success will continue to strengthen our diverse leadership team. She will be a valuable contributor as we advance Perpetua’s vision to redevelop and restore an abandoned mine site while providing critical minerals our nation needs.”

Ms. Largent held finance leadership roles at Newmont, Turquoise Hill Resources and Rio Tinto prior to joining Perpetua Resources. She has more than 15 years of mining industry experience in financial reporting, accounting, strategic planning and investor relations.

Perpetua Resources is also pleased to welcome Chris Fogg as Manager of Investor Relations. Mr. Fogg joined the Company March 1, 2022 and will lead Perpetua’s investor relations function following the promotion of Ms. Largent to Chief Financial Officer. Chris will be responsible alongside Ms. Largent for the investor relations strategy to ensure Perpetua’s investment thesis is well understood by the market. Mr. Fogg brings over seven years of gold industry experience in investor relations, capital markets and mergers & acquisitions, and was most recently at Newmont.

For further information about Perpetua Resources Corp., please contact:

Chris Fogg

Investor Relations Manager

chris.fogg@perpetuacorp.us

Info@perpetuacorp.us

Mckinsey Lyon

Vice President External Affairs

media@perpetua.us
Website: www.perpetuaresources.com

About Perpetua Resources and the Stibnite Gold Project

Perpetua Resources Corp., 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 and sustainable mining goals, the Project will be powered by the lowest carbon emissions grid in the nation and a portion of the antimony produced from the Project will be supplied to Ambri, a US-based company commercializing a low-cost liquid metal battery essential for the low-carbon energy transition.  In addition to the company’s commitments to transparency, accountability, environmental stewardship, safety and community engagement, Perpetua Resources adopted formal ESG commitments which can be found here.

Forward-Looking Information

Statements contained in this news release that are not historical facts are "forward-looking information" or "forward-looking statements" (collectively, "Forward-Looking Information") within the meaning of applicable Canadian securities legislation and the United States Private Securities Litigation Reform Act of 1995. Forward-Looking Information includes, but is not limited to, disclosure regarding possible events, next steps and courses of action including plans with respect to the Stibnite Gold Project and the success of such project. In certain cases, Forward-Looking Information can be identified by the use of words and phrases or variations of such words and phrases or statements such as "anticipate",  “expect” “plan”, “likely”, “believe”, “intend”, “forecast”, “project”, “estimate”, "potential", "could", "may", "will", "would" or “should”. Forward-Looking Information in this news release are based on certain material assumptions and involve known and unknown risks, uncertainties and other factors which may cause the actual results, performance or achievements of Perpetua Resources to be materially different from any future results, performance or achievements expressed or implied by the Forward-Looking Information. Such risks and other factors include those factors discussed in Perpetua Resources' public filings with the U.S. Securities and Exchange Commission (the “SEC”) and its Canadian disclosure record. Although Perpetua Resources has attempted to identify important factors that could affect Perpetua Resources and may cause actual actions, events or results to differ materially from those described in Forward-Looking Information, there may be other factors that cause actions, events or results not to be as anticipated, estimated or intended. There can be no assurance that Forward-Looking Information will prove to be accurate, as actual results and future events could differ materially from those anticipated in such statements. Accordingly, readers should not place undue reliance on Forward-Looking Information. For further information on these and other risks and uncertainties that may affect the Company’s business, see the “Risk Factors” section of the Company’s filings with the SEC, which are available at www.sec.gov and with the Canadian securities regulators, which are available at www.sedar.com. Except as required by law, Perpetua Resources does not assume any obligation to release publicly any revisions to Forward-Looking Information contained in this news release to reflect events or circumstances after the date hereof or to reflect the occurrence of unanticipated events.

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Perpetua Resources Supports Congressional Call to Action on U.S. Critical Mineral Production

Perpetua Resources strongly supports the Idaho Congressional Delegation’s united call for domestic critical mineral production including the timely completion of permitting reviews necessary for development of Idaho’s critical mineral resources which will bolster our Nation’s economic independence and security amid geopolitical instability and unprecedented supply chain disruptions.


Idaho Congressional Delegation calls for timely permitting for critical mineral projects in response to Russia’s invasion of Ukraine and America’s overreliance on foreign adversaries.

More than 75% of antimony production controlled by China and Russia.

Stibnite Gold Project is designed to restore an abandoned mine site while responsibly producing gold and the only domestically mined source of antimony, essential for clean energy and defense materials.

BOISE, ID – Perpetua Resources Corp. (Nasdaq: PPTA / TSX: PPTA) (“Perpetua Resources” or “Perpetua” or the “Company”) strongly supports the Idaho Congressional Delegation’s united call for domestic critical mineral production including the timely completion of permitting reviews necessary for development of Idaho’s critical mineral resources which will bolster our Nation’s economic independence and security amid geopolitical instability and unprecedented supply chain disruptions.

 In floor remarks delivered this week, Senators Mike Crapo and Jim Risch along with Congressmen Mike Simpson and Russ Fulcher resolutely called for action on critical mineral supply chains and pointed to the need to advance proposed projects that would tap into Idaho’s vast antimony and cobalt resources. Perpetua Resources’ Stibnite Gold Project has one of the world’s largest resources of antimony not controlled by China or Russia and could provide the only domestically mined source of a critical mineral deemed essential for clean energy battery storage technology and the Nation’s defense needs. 

“While we need to take strong actions on Russia, the reality is that we source many of our raw minerals from them. As we tighten our grip on their financial system and exports, we must prioritize domestic sourcing and reduce our reliance on countries like Russia and China,” said the Idaho delegation. “The time is now for this Administration to take real action to prioritize a strong domestic supply chain for these essential minerals. We do not want to compromise any of our environmental or other standards. We are simply calling on the Administration to prioritize the timely completion of the permits for currently proposed projects so we may take back control of a fundamental piece of many of our essential industries: critical minerals production.”

“The need for responsible domestic mining to secure our economic, defense, and energy future is not lost on the people of Idaho or the American people,” said Laurel Sayer, President & CEO of Perpetua Resources. “Perpetua is fortunate to have a congressional delegation that recognizes a safe, reliable, and responsible supply chain starts right here at home and supports the growing bipartisan unity to encourage domestic mineral production. Our vision at Perpetua Resources has always been to restore an abandoned mine site while producing the critical resources our Country needs for a more secure and sustainable future. Now, more than ever, turning this vision into reality is vital for our Nation’s success. As we enter the later stages of permitting, we are confident that the robust review process has created improved project outcomes while also prioritizing community and stakeholder transparency.”

Critical Project for the American Future

The Stibnite Gold Project in central Idaho is designed to restore environmental conditions at a legacy mine site while responsibly developing one of the highest-grade, open pit gold resources in the United States and becoming the only domestically mined source of the critical mineral antimony.   

With key applications in energy and defense technology, securing a domestic supply of antimony is more important than ever. Antimony is a key component for grid storage battery technology and Perpetua is uniquely positioned to play a vital role in the decarbonization of the world through its supply agreement with Ambri. Vital to defense materials, antimony was listed by the Department of Defense as a shortfall material in the 100-Day Supply Chain Review Report (June 2021). 

The U.S. Geological Survey recently reported that foreign reliance is growing, with China, Russia and Tajikistan controlling 90% of the world supply of antimony and no domestically mined sources (USGS, 2022 Mineral Commodity Summary). 

For further information about Perpetua Resources Corp., please contact:

Jessica Largent

Vice President Investor Relations and Finance

jessica.largent@perpetuacorp.us Info@perpetuacorp.us

Mckinsey Lyon

Vice President External Affairs

media@perpetua.us
Website: www.perpetuaresources.com

About Perpetua Resources and the Stibnite Gold Project

Perpetua Resources Corp., 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 and sustainable mining goals, the Project will be powered by the lowest carbon emissions grid in the nation and a portion of the antimony produced from the Project will be supplied to Ambri, a US-based company commercializing a low-cost liquid metal battery essential for the low-carbon energy transition. In addition to the company’s commitments to transparency, accountability, environmental stewardship, safety and community engagement, Perpetua Resources adopted formal ESG commitments which can be found here.

Forward-Looking Information

Statements contained in this news release that are not historical facts are "forward-looking information" or "forward-looking statements" (collectively, "Forward-Looking Information") within the meaning of applicable Canadian securities legislation and the United States Private Securities Litigation Reform Act of 1995. Forward-Looking Information includes, but is not limited to, disclosure regarding possible events, next steps and courses of action including actions to be taken by the USFS, the State of Idaho, the  U.S. Federal government and other government agencies and regulatory bodies; plans with respect to the Stibnite Gold Project and the success of such project; and  our and Ambri, Inc.’s ability to perform under the supply agreement, which agreement is subject to certain conditions, including identification of one or more refiners to transform our antimony concentrate into antimony metal, and mutual agreement on certain material terms, including volume and pricing. In certain cases, Forward-Looking Information can be identified by the use of words and phrases or variations of such words and phrases or statements such as "anticipate",  “expect” “plan”, “likely”, “believe”, “intend”, “forecast”, “project”, “estimate”, "potential", "could", "may", "will", "would" or “should”. In preparing the Forward-Looking Information in this news release, Perpetua Resources has applied several material assumptions, including, but not limited to, assumptions that the current exploration, development, environmental and other objectives concerning the Stibnite Gold Project can be achieved and that its other corporate activities will proceed as expected; that general business and economic conditions will not change in a materially adverse manner and that permitting and operations costs will not materially increase.  Forward-Looking Information involves known and unknown risks, uncertainties and other factors which may cause the actual results, performance or achievements of Perpetua Resources to be materially different from any future results, performance or achievements expressed or implied by the Forward-Looking Information. Such risks and other factors include, among others, changes in laws and regulations and changes in the application of standards pursuant to existing laws and regulations which may result in unforeseen results in the permitting process; uncertainty surrounding input to be received from regulators and community stakeholders; risks related to unforeseen delays in the review process; risks related to opposition to the Project; risks related to increased or unexpected costs in operations or the permitting process; risks that estimates used in budgeting and financial statements may prove to be incorrect; risks related to the outcome of litigation and potential for delay of the Project, as well as those factors discussed in Perpetua Resources' public filings with the U.S. Securities and Exchange Commission (the “SEC”) and its [Canadian disclosure record]. Although Perpetua Resources has attempted to identify important factors that could affect Perpetua Resources and may cause actual actions, events or results to differ materially from those described in Forward-Looking Information, there may be other factors that cause actions, events or results not to be as anticipated, estimated or intended. There can be no assurance that Forward-Looking Information will prove to be accurate, as actual results and future events could differ materially from those anticipated in such statements. Accordingly, readers should not place undue reliance on Forward-Looking Information. For further information on these and other risks and uncertainties that may affect the Company’s business, see the “Risk Factors” section of the Company’s filings with the SEC, which are available at www.sec.gov and with the Canadian securities regulators, which are available at www.sedar.com. Except as required by law, Perpetua Resources does not assume any obligation to release publicly any revisions to Forward-Looking Information contained in this news release to reflect events or circumstances after the date hereof or to reflect the occurrence of unanticipated events.

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Perpetua Resources Achieves Critical Milestones As Permitting Continues to Progress

Perpetua Resources announced today that the Company expects the United States Forest Service (“USFS”) to publish a Supplemental Draft Environmental Impact Statement for public review and comment in early Q3 2022.


Supplemental Draft Environmental Impact Statement publication anticipated in early Q3 2022.

Amidst heightened geopolitical tensions, new US Government report indicates U.S. foreign reliance on China and Russia for critical mineral antimony continues to grow.

The Stibnite Gold Project is designed to responsibly source gold and the only domestically mined source of antimony, essential for clean energy and defense supply chains.

BOISE, ID – Perpetua Resources Corp. (Nasdaq: PPTA / TSX: PPTA) (“Perpetua Resources” or “Perpetua” or the “Company”) announced today that the Company expects the United States Forest Service (“USFS”) to publish a Supplemental Draft Environmental Impact Statement (“SDEIS” or “Supplemental DEIS”) for public review and comment in early Q3 2022.

Supplemental DEIS Progress

During the last 18 months, the USFS and cooperating agencies have performed an extensive review of Perpetua’s refined proposed action. In this time, the USFS has made substantial progress in analyzing the project refinements and preparing chapters of the preliminary SDEIS for interagency review. Perpetua anticipates the preliminary SDEIS will be circulated for cooperating agency review in Q2 2022 with a public release of the SDEIS to follow shortly thereafter.

In support of the USFS’s preparation of the Supplemental DEIS, Perpetua has responded to more than 850 comments and numerous requests for additional information, including additional water modeling, sensitivity analyses, fisheries modeling, and habitat analysis. The USFS has also nearly completed all of the 17 specialist reports for cooperating agency review. Perpetua is confident that the additional evaluation contained within the SDEIS will directly address issues raised during the public review of the 2020 Draft Environmental Impact Statement (“DEIS”) and believes the additional analysis and detailed review will lead to the USFS designating a preferred alternative in the SDEIS.

“For over a year, the Perpetua team has worked diligently with regulators to incorporate public feedback into our proposed project design,” said Laurel Sayer, President and CEO of Perpetua Resources. “We are eager to show how our improvements are designed to leave water quality and overall habitat in this historic mining district in better shape than they are in today while also responsibly producing the mineral and metals critical for our national interests. We anticipate the hard work and commitment to a thorough and transparent process will pay dividends as our project advances.”

The comprehensive scientific analysis by the USFS and cooperating agencies, combined with the additional public review of the SDEIS, fortify the rigorous process mandated by the National Environmental Policy Act ("NEPA"). The USFS is expected to provide a formal schedule update later this year and Pepertua remains committed to supporting a thorough and efficient NEPA process by the USFS.

Critical Project for the American Future

The Stibnite Gold Project in central Idaho is designed to restore environmental conditions at a legacy mine site while responsibly developing one of the highest-grade, open pit gold resources in the United States and becoming the only domestically mined source of the critical mineral antimony.

As a strategic defense mineral and a key component for grid storage battery technology, securing a domestic supply of antimony is more important than ever. The U.S. Geological Survey recently reported that foreign reliance is growing, with China, Russia and Tajikistan controlling 90% of the world supply of antimony and no domestically mined sources (USGS, 2022 Mineral Commodity Summary).

“Responsible mining is the first link in a more resilient and secure supply chain,” said Laurel Sayer, President and CEO of Perpetua Resources. “We are taking actions to ensure the environmental and social outcomes of the Stibnite Gold Project meet the demand for a responsible source of antimony to secure our nation’s defense and energy supply chains.”

For further information about Perpetua Resources Corp., please contact:

Jessica Largent

Vice President Investor Relations and Finance

jessica.largent@perpetuacorp.us Info@perpetuacorp.us

Mckinsey Lyon

Vice President External Affairs

media@perpetua.us
Website: www.perpetuaresources.com

About Perpetua Resources and the Stibnite Gold Project

Perpetua Resources Corp., 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 and sustainable mining goals, the Project will be powered by the lowest carbon emissions grid in the nation and a portion of the antimony produced from the Project will be supplied to Ambri, a US-based company commercializing a low-cost liquid metal battery essential for the low-carbon energy transition. In addition to the company’s commitments to transparency, accountability, environmental stewardship, safety and community engagement, Perpetua Resources adopted formal ESG commitments which can be found here.

Forward-Looking Information

Statements contained in this news release that are not historical facts are "forward-looking information" or "forward- looking statements" (collectively, "Forward-Looking Information") within the meaning of applicable Canadian securities legislation and the United States Private Securities Litigation Reform Act of 1995. Forward-Looking Information includes, but is not limited to, disclosure regarding possible events, next steps and courses of action including actions to be taken by the USFS, the State of Idaho and other government agencies and regulatory bodies; plans with respect to the issuance of an SDEIS; the consideration of difference access routes; the anticipated timing for release of the SDEIS, FEIS, draft ROD and final ROD; predictions regarding improvements to water quality and other environmental conditions at the site; reduction of the Project footprint and the anticipated benefits and other effects thereof; disclosure regarding our funding capacity and requirements for additional capital; our and Ambri, Inc.’s ability to perform under the supply agreement, which agreement is subject to certain conditions, including identification of one or more refiners to transform our antimony concentrate into antimony metal, and mutual agreement on certain material terms, including volume and pricing. In certain cases, Forward-Looking Information can be identified by the use of words and phrases or variations of such words and phrases or statements such as "anticipate", “expect” “plan”, “likely”, “believe”, “intend”, “forecast”, “project”, “estimate”, "potential", "could", "may", "will", "would" or “should”. In preparing the Forward-Looking Information in this news release, Perpetua Resources has applied several material assumptions, including, but not limited to, assumptions that the current exploration, development, environmental and other objectives concerning the Stibnite Gold Project can be achieved and that its other corporate activities will proceed as expected; that general business and economic conditions will not change in a materially adverse manner and that permitting and operations costs will not materially increase; that the review process under the NEPA (including any joint review process involving the USFS, the State of Idaho and other agencies and regulatory bodies) as well as the public review process and SDEIS will proceed in a timely manner and as expected; and that all requisite information will be available in a timely manner. Forward-Looking Information involves known and unknown risks, uncertainties and other factors which may cause the actual results, performance or achievements of Perpetua Resources to be materially different from any future results, performance or achievements expressed or implied by the Forward-Looking Information. Forward-Looking Information involves known and unknown risks, uncertainties and other factors which may cause the actual results, performance or achievements of Perpetua Resources to be materially different from any future results, performance or achievements expressed or implied by the Forward-Looking Information. Such risks and other factors include, among others, changes in laws and regulations and changes in the application of standards pursuant to existing laws and regulations which may result in unforeseen results in the permitting process; uncertainty surrounding input to be received from regulators and community stakeholders; risks related to dependence on key personnel; risks related to unforeseen delays in the review process including availability of personnel from the USFS, State of Idaho and other stated, federal and local agencies and regulatory bodies (including, but not limited to, future US government shutdowns); risks related to opposition to the Project; risks related to increased or unexpected costs in operations or the permitting process; risks that estimates used in budgeting and financial statements may prove to be incorrect; risks related to the outcome of litigation and potential for delay of the Project, as well as those factors discussed in Perpetua Resources' public disclosure record. Although Perpetua Resources has attempted to identify important factors that could affect Perpetua Resources and may cause actual actions, events or results to differ materially from those described in Forward-Looking Information, there may be other factors that cause actions, events or results not to be as anticipated, estimated or intended. There can be no assurance that Forward-Looking Information will prove to be accurate, as actual results and future events could differ materially from those anticipated in such statements. Accordingly, readers should not place undue reliance on Forward-Looking Information. For further information on these and other risks and uncertainties that may affect the Company’s business, see the “Risk Factors” and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” sections of the Company’s filings with the SEC, are available at www.sec.gov and with the Canadian securities regulators, which are available at www.sedar.com. Except as required by law, Perpetua Resources does not assume any obligation to release publicly any revisions to Forward-Looking Information contained in this news release to reflect events or circumstances after the date hereof or to reflect the occurrence of unanticipated events.

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