6-K

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

UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of September 2023

Commission File Number: 001-32210

NORTHERN DYNASTY MINERALS LTD.

(Translation of registrant’s name into English)

14th Floor - 1040 W Georgia St., Vancouver, BC, V6E 4H1

(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F.

☐ Form 20-F     ☒ Form 40-F

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): ☐

SUBMITTED HEREWITH

Exhibits	Description
99.1	PRESS RELEASE

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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.

	Northern Dynasty Minerals Ltd.
	(Registrant)
Date: September 18, 2023	By:	/s/ Trevor Thomas
	By:	Trevor Thomas
	Title:	Secretary and General Counsel

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EX-99.1

EXHIBIT 99.1

Northern Dynasty: Re-filing of Independent Technical Report Update and Preliminary Economic

Assessment to Correct Typographical Errors and Formatting

September 18, 2023 Vancouver – Northern Dynasty Minerals Ltd. (TSX: NDM; NYSE American: NAK) ("Northern Dynasty" or the "Company" or “NDM”) announces it has re-filed the independent technical report entitled Pebble Project, NI 43-101 Technical Report Update and Preliminary Economic Assessment, Alaska, United States of America, effective date August 21, 2023 (“2023 PEA”) at www.sedarplus.ca. The amended version of the report corrects some typographical and formatting errors, which results in the correction and/or replacement of certain figures and tables.

The report will also be available via the homepage on the Company website at www.northerndynastyminerals.com.

For further details on Northern Dynasty and the Pebble Project, please visit the Company's website at www.northerndynastyminerals.com or contact Investor services at (604) 684-6365 or within North America at 1-800-667-2114. Review Canadian public filings at www.sedarplus.ca and U.S. public filings at www.sec.gov.

Mark Peters

Chief Financial Officer