Northern Dynasty Minerals Ltd 6-K, filed Oct 21, 2025
Northern Dynasty Minerals Ltd (NAK)
About this 6-K
Northern Dynasty Minerals Ltd filed this 6-K on October 21, 2025.
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 October 2025
Commission File No. 001-32210
| NORTHERN DYNASTY MINERALS LTD. |
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14th Floor - 1040 West Georgia Street
Vancouver, British Columbia, V6E 4H1, Canada
(Address of principal executive office)
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 ☒
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
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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.
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| Northern Dynasty Minerals Ltd. |
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| Date: October 20, 2025 | By: | /s/ Trevor Thomas |
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| By: | Trevor Thomas |
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| Title: | Secretary and General Counsel |
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EXHIBIT 99.1
Northern Dynasty: Fifth and Final Tranche of $12 million Royalty Investment Received
October 20, 2025 Vancouver – Northern Dynasty Minerals Ltd. (TSX: NDM; NYSE American: NAK) ("Northern Dynasty" or the "Company") is pleased to announce the receipt of a $12 million payment representing the fifth and final tranche of investment under the Company’s royalty agreement (“Royalty Agreement”) dated July 26, 2022, as amended. All amounts are in U.S. dollars unless otherwise noted.
The payment was received well before the December 31, 2025, deadline, and brings the aggregate total purchase price to $60 million. The maximum royalty rates under the original Royalty Agreement are now in effect. Accordingly, the royalty holder has the right to receive 10% of the payable gold production and 30% of the payable silver production from the Pebble Project.
“With this final $12 million investment we have completed the royalty investment program that began in 2022,” said Ron Thiessen, Northern Dynasty’s President and CEO. “We embarked on this royalty investment program because we saw it as an opportunity to improve our liquidity without issuing equity at what we considered depressed prices. In retrospect, our decision has been validated as our share price has increased more than five-fold since entering into the agreement in 2022 when our share price was depressed and, as a result, we have avoided significant dilution to shareholders. We are pleased that we raised a substantial amount of capital in return for the right to buy a small portion of future, gold and silver production from the Proposed Project, while keeping 100% of the copper, molybdenum and rhenium production.”
“We want to thank the royalty holder for their support and the vote of confidence this investment represents. We now have the strongest liquidity position we have had in many years as we continue to push to have the illegal veto withdrawn and to advance the project through permitting,” Mr. Thiessen concluded.
About Northern Dynasty Minerals Ltd.
Northern Dynasty is a mineral exploration and development company based in Vancouver, Canada. Northern Dynasty's principal asset, owned through its wholly owned Alaska-based U.S. subsidiary, Pebble Limited Partnership, is a 100% interest in a contiguous block of 1,840 mineral claims in Southwest Alaska, including the Pebble deposit, located 200 miles from Anchorage and 125 miles from Bristol Bay. The Pebble Partnership is the proponent of the Pebble Project.
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. Public filings, which include forward looking information cautionary language and risk factor disclosure regarding the Company and the Pebble Project can be found in Canada at www.sedarplus.ca and in the United States at www.sec.gov.
Ronald W. Thiessen
President & CEO
U.S. Media Contact:
Dan Gagnier, Gagnier Communications (646) 569-5897
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Forward Looking Information and other Cautionary Factors
This document includes certain statements that may be deemed "forward-looking statements" under the United States Private Securities Litigation Reform Act of 1995 and under applicable provisions of Canadian provincial securities laws. All statements in this document, other than statements of historical facts, which address permitting, including the Company’s legal action against the U.S. Environmental Protection Agency (“EPA”) and the U.S. Army Corps of Engineers (“USACE”), the withdrawal of the EPA veto and the development and production for the Pebble Project are forward-looking statements. Additional forward looking statements made by the Company under its continuous disclosure obligations include statements regarding (i) the development plan for the Pebble Project (ii) the right-sizing and de-risking of the Pebble Project, (iii) the design and operating parameters for the Pebble Project development plan, including projected capital and operating costs, (iv) the social integration of the Pebble Project into the Bristol Bay region and benefits for Alaska, (v) the political and public support for the permitting process, (vi) the ability of the Pebble Project to ultimately secure all required federal and state permits, (vii) the ability of the Company and/or the State of Alaska to challenge the EPA’s Final Determination process under the Clean Water Act and ultimately the USACE’s Record of Decision (“USACE ROD”) through legal actions; (viii) exploration potential of the Pebble Project, (ix) future demand for copper, gold and other metals, (x) if permitting is ultimately secured, the ability to demonstrate the Pebble Project is ultimately commercially viable, and (xi) the potential addition of partners in the Pebble Project. Although NDM believes the expectations expressed in these forward-looking statements are based on reasonable assumptions, such statements should not be in any way be construed as guarantees that the Pebble Project will secure all required government permits or regarding the ability of NDM to develop the Pebble Project in light of the USACE ROD and its subsequent remand decision and the EPA’s Final Determination, establish the commercial feasibility of the Pebble Project, achieve the required financing or develop the Pebble Project.
Forward-looking statements are necessarily based upon a number of factors and assumptions that, while considered reasonable by NDM as of the date of such statements, are inherently subject to significant business, economic and competitive uncertainties and contingencies. Assumptions used by NDM to develop forward-looking statements include the assumptions that (i) the Pebble Project will obtain all required environmental and other permits and all land use and other licenses without undue delay, (ii) any feasibility studies prepared for the development of the Pebble Project will be positive, (iii) NDM’s estimates of mineral resources will not change, and NDM will be successful in converting mineral resources to mineral reserves, (iv) NDM will be able to establish the commercial feasibility of the Pebble Project, and (v) NDM will be successful in its legal action against the EPA and the USACE and any action taken by the EPA in connection with the Final Determination will ultimately not be successful in restricting or prohibiting development of the Pebble Project.
In addition, the likelihood of future mining at the Pebble Project is subject to a large number of risks and will require achievement of a number of technical, economic and legal objectives, including (i) the current development plan may not reflect the ultimate mine plan for the Pebble Project, (ii) obtaining necessary mining and construction permits, licenses and approvals without undue delay, including without delay due to third party opposition or changes in government policies, (iii) finalization of the mine plan for the Pebble Project, (iv) the completion of feasibility studies demonstrating that any Pebble Project mineral resources that can be economically mined, (v) completion of all necessary engineering for mining and processing facilities, (vi) the ability of NDM to secure a partner for the development of the Pebble Project, and (vi) receipt by NDM of significant additional financing to fund these objectives as well as funding mine construction. NDM is also subject to the specific risks inherent in the mining business as well as general economic and business conditions. Investors should also consider the risk factors identified in the Company’s Annual Information Form for the year ended December 31, 2024, as filed on SEDAR+ (www.sedarplus.ca) and included in its annual report on Form 40-F filed on EDGAR (www.sec.gov), as well as the risk factors set out in the Company’s subsequent public continuous disclosure filings available on SEDAR+ and EDGAR. For more information on the Company, Investors should review the Company's filings with the United States Securities and Exchange Commission at www.sec.gov and its home jurisdiction filings that are available at www.sedarplus.ca.
The National Environment Policy Act Environmental Impact Statement process requires a comprehensive “alternatives assessment” be undertaken to consider a broad range of development alternatives, the final project design and operating parameters for the Pebble Project and associated infrastructure may vary significantly from that currently contemplated. As a result, the Company will continue to consider various development options and no final project design has been selected at this time.
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