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US Congressional Committee calls on EPA Administrator to withdraw Pebble Project veto

Corporate Updates

US Congressional Committee calls on EPA Administrator to withdraw Pebble Project veto

February 22, 2017 Vancouver, BC – Northern Dynasty Minerals Ltd. (TSX : NDM; NYSE MKT: NAK) ("Northern

Dynasty" or the "Company") announces that the US House Committee on Science, Space and Technology has called on

the new Administrator of the US Environmental Protection Agency (“EPA”) to rescind the federal agency’s 2014

regulatory action under Section 404(c) of the Clean Water Act to pre-emptively veto Alaska’s Pebble Project.

A February 22, 2017 letter to EPA Admi nistrator Scott Pruitt from Committee Chairman Lamar Smith states: “The

Committee recommends that the incoming Administration rescind the EPA’s proposed determination to use Section

404(c) in a pre-emptive fashion for the Pebble Mine in Bristol Bay, Alaska. This simple action will allow a return to the

long-established Clean Water Act permitting process and stop attempts by the EPA to improperly expand its

authority. Moreover, it will create regulatory certainty for future development projects that will create jobs and contribute

to the American economy.”

Since 2014, Northern Dynasty and its 100%-owned subsidiary Pebble Limited Partnership (“Pebble Partnership”) have

advanced a multi-prong strategy – including litigation, Congressional outreach, independent investigations, among other

initiatives – to encourage EPA to wit hdraw its unprecedented regulatory action against Pebble. The Congressional

Science, Space and Technology Committee has held several Pe bble-related hearings in recent years, finding that EPA

actions concerning the mineral development project in s outhwest Alaska were based on “a questionable scientific

assessment that relied on predetermined conclusions,” and that “EPA employees colluded with Pebble Mine opponents

to stop the project.”

The US House Committee on Science, Space and Technology’s letter to EPA Administrator Pruitt can be read here.

Northern Dynasty President & CEO Ron Thiessen said the Committee’s letter provides even greater impetus for EPA

Administrator Pruitt to take timely action to reverse what ma ny see as one of the leading examples of EPA over-reach,

and return the Pebble Project to normal course permitting and the rule of law.

“All we have ever asked is for the opportunity to propose a comprehensive development plan for the Pebble Project, and

to have it fairly and objectively reviewed against the extremely rigorous environmental standards and permitting

requirements enforced in Alaska and the United States. Today, we are one step closer to earning that opportunity.

“We thank the Committee and staff for its careful and consistent scrutiny of the troubling issues that have characterized

the EPA’s treatment of the Pebble Project over the years, and its commitment to the well-established federal and state

permitting process under the Clean Water Act and National Environmental Policy Act.”

About Northern Dynasty Minerals Ltd.

Northern Dynasty is a mineral exploration and development company based in Vancouver, Canada. Northern Dynasty's

principal asset is the Pebble Project in southwest Alaska, USA, 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.northerndynasty.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

Canadian Media Contact:

Ian Hamilton

DFH Public Affairs

(416) 206-0118 x.222

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 exploration drilling, exploitation activities and events or developments 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 include the following: the Pebble Project will obtain all 

required environmental and other permits and all land use and other licenses, studies and development of the Pebble Project will 

continue to be positive, and no geological or technical problems will occur.  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 

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 financing 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 mineralization 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 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.