6-K - PPTA - Equibles

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549  Form 6-K  REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 OF THE SECURITIES EXCHANGE ACT OF 1934  For the month of November 2021  Commission File Number: 001-39918 Perpetua Resources Corp. (Translation of registrant's name into English) 405 S. 8th Street, Ste 201 Boise, Idaho 83702 (Address of principal executive offices) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F. Form 20-F ¨ Form 40-F x Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1) ¨ Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7) ¨

DOCUMENTS FILED AS PART OF THIS FORM 6-K

Exhibit	Description
99.1	Letter from Perpetua Resources Corp., dated November 15, 2021
99.2	Notice of Change of Auditor, dated November 15, 2021
99.3	Letter from Deloitte LLP, dated November 15, 2021
99.4	Letter from PricewaterhouseCoopers LLP, dated November 15, 2021
99.5	Press Release, dated November 15, 2021

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

	PERPETUA<br> RESOURCES CORP.
Date: November 15, 2021	By:	/s/<br> Jessica Largent
	Name:	Jessica<br> Largent
	Title:	Vice<br> President, Investor Relations and Finance

Exhibit 99.1

Perpetua Resources Corp.

405 S. 8th Street, Ste. 201

Boise, ID 83702

Tel:208.9013060

www.perpetuaresources.com

November 15, 2021

British Columbia Securities Commission

Ontario Securities Commission

Alberta Securities Commission

Financial and Consumer Affairs Authority of Saskatchewan

Manitoba Securities Commission

Financial and Consumer Services Commission (New Brunswick)

Newfoundland and Labrador Securities Commission

Nova Scotia Securities Commission

Prince Edward Island Securities Office

Dear Sirs/Mesdames:

Re: PerpetuaResources Corp. (the "Company") - Resignation and Appointment of Auditor

The Company has received the resignation of its auditor and has appointed PricewaterhouseCoopers LLP, as the Company's auditor in the place of Deloitte LLP.

As required by National Instrument 51-102, we enclose the Reporting Package, being the Notice of Change of Auditor and a letter from each of the former and successor auditors.

The information circular in respect of the Company's next annual general meeting of shareholders will include: (a) the enclosed material as an appendix, and (b) a summary of the contents of such material, with a cross reference to the appendix.

PERPETUARESOURCES CORP.

Per:	“Laurel Sayer”
	LAURELSAYER
	President & CEO

Critical Resources. Responsible Mining. Environmental Restoration.

Exhibit 99.2

PERPETUA RESOURCES CORP.

NOTICE OF CHANGE OFAUDITOR

To:	Deloitte LLP, Chartered Professional<br>Accountants
And To:	PricewaterhouseCoopers LLP, Chartered<br>Professional Accountants
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And To:	British Columbia Securities Commission<br>Ontario Securities Commission
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Alberta Securities Commission

Financial and Consumer Affairs Authority of Saskatchewan

Manitoba Securities Commission

Financial and Consumer Services Commission (New Brunswick)

Financial Services Regulation Division Newfoundland and Labrador

Nova Scotia Securities Commission

Office of the Superintendent of Securities Office (Prince Edward Island)

Pursuant to section 4.11 of National Instrument 51-102 Continuous DIslclosure Obligation (“NI 51-102”) Perpetua Resources Corp. (the "Company") hereby provides notice of the following:

1)	The<br> Company is changing its auditor from Deloitte LLP, Chartered Professional Accountants, of<br> 939 Granville Street, Vancouver, BC, V6Z 1L3, to PricewaterhouseCoopers LLP, of 1900 16^th^Street, Suite 1600, Denver, CO, 80202-5258. Deloitte LLP resigned as auditor of<br> the Company effective November 15, 2021, at the request of the Company.
2)	Deloitte<br> LLP has not expressed any modified opinion in its auditor’s reports on the Company’s<br> financial statements relating to the ”relevant period” (as such term is defined<br> in section 4.11(1) of NI 51-102).
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3)	There have<br> been no reportable events as defined in National Instrument 51-102 in connection with<br> the audits by Deloitte LLP of the Company's most recently completed financial year or any<br> subsequent period up to the date of this Notice.
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4)	The resignation<br> of Deloitte LLP as auditor and the recommendation to appoint PricewaterhouseCoopers LLP as<br> successor auditor has been approved by the Company's Audit Committee.
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DATED this 15^th^ day of November, 2021.

PERPETUA RESOURCES CORP.

Per:	“Laurel Sayer”
	LAUREL SAYER
	President & CEO

Exhibit 99.3

Deloitte LLP<br><br><br><br>939 Granville Street<br><br><br><br>Vancouver, BC<br><br><br><br>V6Z 1L3<br><br><br><br>Canada<br><br><br><br><br><br><br><br>Tel: 604-669-4466<br><br><br><br>Fax: 604-685-0395<br><br><br><br>www.deloitte.ca

November 15, 2021

To:	British Columbia Securities Commission

Ontario Securities Commission

Alberta Securities Commission

Financial and Consumer Affairs Authority of Saskatchewan

Manitoba Securities Commission

Financial and Consumer Services Commission (New Brunswick)

Financial Services Regulation Division, Newfoundland and Labrador

Nova Scotia Securities Commission

Office of the Superintendent of Securities Office (Prince Edward Island)

Dear Sirs/Mesdames:

Re: Perpetua Resources Corp. (the "Company")

As required by subparagraph (5)(a)(ii) of section 4.11 of National Instrument 51-102, we have reviewed the information contained in the Company's Notice of Change of Auditor(the “Notice”) dated November 15, 2021, and based on our knowledge of such information at this time, we agree with the information contained in the Notice as it relates to Deloitte LLP.

Yours very truly,

/s/ Deloitte LLP

Chartered Professional Accountants

Exhibit 99.4

November 15, 2021

To:	British Columbia Securities Commission

Ontario Securities Commission

Alberta Securities Commission

Financial and Consumer Affairs Authority of Saskatchewan

Manitoba Securities Commission

Financial and Consumer Services Commission (New Brunswick)

Newfoundland and Labrador Securities Commission

Nova Scotia Securities Commission

Prince Edward Island Securities Office

Dear Sirs/Mesdames:

Re: Perpetua Resources Corp. (the "Company")

As required by subparagraph (6)(a)(ii) of section 4.11 of National Instrument 51-102, we have reviewed the information contained in the Company's Notice of Change of Auditor (the “Notice”) dated November 15, 2021, and based on our knowledge of such information at this time, we agree with the information contained in the Notice as it relates to PricewaterhouseCoopers LLP.

We understand that the Notice of Change of Auditor, along with this letter and a similar letter from Deloitte LLP will be provided to the Company's shareholders with the meeting materials relating to the Company's next annual general meeting of shareholders.

Yours very truly,

/s/ PricewaterhouseCoopers LLP

PricewaterhouseCoopers LLP, 1900 Sixteenth Street, Suite 1600, Denver, CO 80202

T: (720) 931 7000, F: (720) 931 7100, www.pwc.com/us

Exhibit 99.5

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NEWS RELEASE

November 15, 2021

Perpetua Resources Announces Appointment of PricewaterhouseCoopers as Auditors

BOISE, ID – Perpetua Resources Corp.(Nasdaq: PPTA / TSX: PPTA) (“Perpetua Resources” or the “Company”) today announced that, following a thorough and competitive review process, it has changed its auditor from Deloitte LLP (the “Former Auditor”) to PricewaterhouseCoopers LLP (the “Successor Auditor”). The Successor Auditor will conduct a US GAAP audit of the Company’s annual financial statements for the 2021 financial year in connection with Perpetua transitioning to a U.S. Domestic Issuer. Copies of the Notice of Change of Auditor and letters from the Former Auditor and Successor Auditor have been filed on SEDAR.

"We are pleased to announce PricewaterhouseCoopers LLP as a reputable partner as we transition to a U.S. Domestic Issuer and continue advancing our strategy to focus the Company’s business in the U.S. We would like to thank the Canadian Deloitte team for their expertise and guidance over the last ten years," said Laurel Sayer, President and CEO of Perpetua Resources.

The Company confirms there have been no modified opinions in the Former Auditor's reports for the two most recently completed financial years or for any period subsequent to the most recently completed period for which an audit report was issued and preceding November 15, 2021; the Company's Board of Directors and Audit Committee each approved the resignation of the Former Auditor and the appointment of the Successor Auditor in place of the Former Auditor; there were no reportable events (as defined in National Instrument 51-102, Continuous Disclosure Obligations) in connection with each of the Former Auditor's audits of the Company; and the Notice of Change of Auditor was approved by the Company's Board of Directors.

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

Responsible Mining. Critical Resources. Clean Future.