Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-39918 Perpetua Resources Corp. (Exact Name of Registrant as Specified in its Charter) British Columbia, Canada ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from ___________ to __________ Commission File Number 001-39918 PERPETUA RESOURCES CORP. (Exact name of Registrant as specified in its Charter) Britis ...

1 Restoring and Redeveloping the Largest, Highest Grade and Lowest Cost Independent Gold Project in the U.S. Lower 48 | --- | --- | --- | --- | --- | --- | --- | |-------|-------|-------|-------|-------|---------------|-------| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | STIBNITE GOLD | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | PROJECT | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Idaho, USA ...