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Northern Dynasty: US Army Corps of Engineers releases Draft Environmental Impact Statement for Alaska’s Pebble Project

Permits & Approvals

Northern Dynasty: US Army Corps of Engineers releases

Draft Environmental Impact Statement for Alaska’s Pebble Project

February 20, 2019 – Northern Dynasty Minerals Ltd. (TSX: NDM; NYSE American: NAK) ("Northern Dynasty"

or the "Company") announces that the US Army Corps of Engineers (the "Corps") has posted on its website

the Draft Environmental Impact Statement (“DEIS”) for southwest Alaska’s Pebble Project, as required under

the National Environmental Policy Act (“NEPA”).

The US Army Corps of Engineers will facilitate a formal consultation and public comment process with respect

to the Pebble Project DEIS this spring. Further information regarding the EIS process can b e found on the

Corps’ website at www.pebbleprojecteis.com.

“Our preliminary review of the DEIS shows no major data gaps or substantive impacts associated with a mine

at the Pebble site. We see no significant environmental challenges that would preclude the project from

getting a permit and believe this shows Alaska stakeholders that there is a clear path forward for this project,”

said Pebble Limited Partnership (“Pebble Partnership”) CEO Tom Collier. “I also commend the Corps for their

efficient, comprehensive and transparent management of the process thus far.”

“The DEIS is an important milesto ne and positive development for the Pebble Project ,” said Ron Thiessen,

CEO of Northern Dynasty. “We want to express our appreciation to the Army Corps of Engineers, the State

of Alaska and all of the cooperating agencies and communities.”

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 US subsidiary Pebble Limited

Partnership, is a 100% interest in a contiguous block of 2,402 mineral claims in southwest Alaska, including

the Pebble deposit. PLP 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 Dyna sty 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". All statements in this release, other than

statements of historical facts, that address future events that the Company expects are forward -looking statements. Although the

Company believes the expectations expressed in its forward -looking statements are based on reasonable assumptions, such

statements should not be in any way construed as guarantees of the ultimate size, quality or commercial feasibility of the Pebble

Project or of the Company's future performance or the outcome of litigation.

Assumptions used by the Company to develop forward- looking statements are that the Pebble project will be evaluated based on

technical and scientific criteria free from undue political or legal interference. 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 leg al objectives, including

obtaining necessary mining and construction permits, approvals, licenses and title on a timely basis and delays due to third party

opposition, changes in government policies regarding mining and natural resource exploration and exploitation, the final outcome of

any litigation, completion of pre- feasibility and final feasibility studies, preparation of all necessary engineering for surface or

underground mining and processing facilities as well as receipt of significant additional f inancing to fund these objectives as well as

funding mine construction. Such funding may not be available to the Company on acceptable terms or on any terms at all. There is

no known ore at the Pebble Project and there is no assurance that the mineralizati on at the Pebble Project will ever be classified as

ore. The need for compliance with extensive environmental and socio -economic rules and practices and the requirement for the

Company to obtain government permitting can cause a delay or even abandonment of a mineral project. The Company is also subject

to the specific risks inherent in the mining business as well as general economic and business conditions. For more informati on 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. Northern Dynasty does not have control over the contents of the USACE

website and therefore Northern Dynasty cannot either endorse the contents or assume responsibility for the website’s contents

other than for submissions thereon actually made by Northern Dynasty. The National Environmental Policy Act EIS process requires

a comprehensive “alternatives assessment” be undertaken to consider a broad range of development alternatives. Accordingly, the

final project design and operating parameters for the Pebble Project and associated infrastructure may vary significantly fro m that

currently being advanced. As a result, the Company will continue to consider various development options and no final project design

has been selected at this time.