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Northern Dynasty Makes Annual Filings

Financials

Northern Dynasty Makes Annual Filings

April 1 , 202 1, Vancouver, BC – Northern Dynasty Minerals Ltd. (TSX: NDM)(NYSE American: NAK) ("Northern

Dynasty" or the "Company") announces that it has filed its audited Financial Statements, Management Discussion

and Analysis, Annual Information Form and Annual Report on Form 40F for the year ending December 31, 2020.

Concurrent with its annual filings, the Company has filed an updated Technical Report for the Pebble Project. The

Technical Report updates the Company’s 2020 technical report on the Pebble Project , filed on October 1, 2020

with an effective date of August 18, 2020, in order to include updated disclosure on the status of the permitting

process, the Record of Decision (“ROD”) issued by the US Army Corps of Engineers and the Company’s appeal of

the ROD. The updated Technical Report does not include any update to the previously disclosed mineral resource

estimates, which remain effective as of August 18, 2020.

The Company also advises that consistent with previous years its audited consolidated financial statements for

the fiscal year ended December 31, 20 20, included in the Company’s Annual Report on Form 40 -F, contained an

audit report from its independent registered pu blic accounting firm with a going concern emphasis of matter.

Release of this information is required by Section 610(b) of the NYSE American Company Guide. It does not

represent any change or amendment to any of the Company’s filings for the fiscal year ended December 31, 2020.

The technical information in this release was reviewed and approved by Stephen Hodgson, P.Eng., and David

Gaunt, P.Geo., Qualified Persons who are not independent of Northern Dynasty. David Gaunt is also responsible

for the August 2020 resource estimate.

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, the Pebble Partnership,

is a 100% interest in a contiguous block of 2,402 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, an initiative to develop one of the world's most important mineral resources.

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.sedar.com and US public filings at www.sec.gov.

Ronald W. Thiessen

President & CEO

US Media Contact:

Dan Gagnier

Gagnier Communications

(646) 569-5897

Forward Looking Information and other Cautionary Factors

This release includes certain statements that may be deemed "forward -looking statements" under applicable law. All statements in

this release, other than statements of historical facts, that address permitting, development and production for the Pebble P roject

are forward-looking statements. These statements include statements regarding (i) the mine plan for the Pebble Project, (ii) the social

integration of the Pebble Project into the Bristol Bay region and benefits for Alaska, (iii) the political and publ ic support for the

permitting process, (iv) the ability to successfully appeal the negative Record of Decision and secure the issuance of a positive Record

of Decision by the US Army Corps of Engineers and the ability of the Pebble Project to secure state permits, (v) the right-sizing and

de-risking of the Pebble Project, (vi) the design and operating parameters for the Pebble Project mine plan, (vii) exploration potential

of the Pebble Project, (viii) future demand for copper and gold, (ix) the potential partnering of the Pebble Project, and (x) the ability

and timetable of NDM to develop the Pebble Project and become a leading copper, gold and molybdenum producer. Although NDM

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believes the expectations expressed in these forward -looking statements are base d 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, esta blish

the commercial feasibility of the Pebble Project or develop the Pebble Project. 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 a ll land

use and other licenses without undue delay, (ii) studies for the develop ment of the Pebble Project will be positive, (iii) NDM’s

estimates of mineral resources will not change, (iv) NDM will be able to establish the commercial feasibility of the Pebble P roject,

and (v) NDM will be able to secure the financing required to develop the Pebble Project. 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 objec tives,

including (i) obtaining necessary mining and constructi on permits, licenses and approvals without undue delay, including without

delay due to third party opposition or changes in government policies, (ii) finalization of the mine plan for the Pebble Project, (iii) the

completion of feasibility studies demonstr ating that any Pebble Project mineral resources that can be economically mined, (iv)

completion of all necessary engineering for mining and processing facilities, (v) 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, which financing may not be available to NDM on acceptable terms or on any terms at all. NDM is als o

subject to the specific risks inherent in the mining business as well as general economic and business conditions, such as the current

uncertainties with regard to COVID-19.

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 th e

Pebble Project and associated infrastructure may vary significantly from that currently contemplated. A s a result, the Company will

continue to consider various development options and no final project design has been selected at this time.

For more information on the Company, Investors should review the Company's filings with the United States Securities and Exchange

Commission and its home jurisdiction filings that are available at www.sedar.com.