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6-K

Northern Dynasty Minerals Ltd (NAK)

6-K 2023-06-12 For: 2023-06-09
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Added on April 11, 2026

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 June 2023

Commission File Number: 001-32210

NORTHERN DYNASTY MINERALS LTD.

| (Translation of registrant’s name into English) |

14 th 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 |

2

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: June 9, 2023 | By: | /s/ Trevor Thomas |

| | By: | Trevor Thomas |

| | Title: | Secretary and General Counsel |

3

ndm_ex991.htm

EXHIBIT 99.1

Northern Dynasty Files Amended Technical Report

June 9, 2023 Vancouver – Northern Dynasty Minerals Ltd. (TSX: NDM; NYSE American: NAK) ("Northern Dynasty" or the "Company") announces that it has filed an Amended Technical Report, effective date May 19, 2023 (the “Technical Report”) under National instrument 43-101 for the Pebble Project. The Technical Report amends the technical report filed on March 31, 2023 in order to address comments received from the BC Securities Commission. The changes include:

· Removal of contained metal from the resource estimate table;

| · | Additional disclosure on the cutoff grade and reasonable prospects for eventual economic extraction; |

| · | Clarifications of some exploration information and additional drill sections; |

| · | Removal of information on the Project Description; and |

| · | Additional information in the certificates of the qualified persons and consents. |

While no new technical information was incorporated in the resource estimate, the effective date was moved to May 19 to incorporate the latest updates to the permit status. The estimated mineral resources remain unchanged from the report filed on March 31.

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 public filings, which include forward looking information cautionary language and risk factor disclosure regarding the Company and the Pebble Project in Canada at www.sedar.com and the US at www.sec.gov.

Stephen Hodgson, P.Eng, and David Gaunt, qualified persons who are not independent of Northern Dynasty have approved the technical information contained in this news release.

Trevor Thomas

Secretary and General Counsel