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Non-Employee Directors de Ferred Share Unit Plan

Share Capital & Compensation

LEGAL_46653821.4

NORTHERN DYNASTY MINERALS LTD.

NON-EMPLOYEE DIRECTORS DE FERRED SHARE UNIT PLAN

As amended and restated effective June 19, 2025

1. PURPOSE OF THE PLAN

1.1 This Plan has been established by the Corporation to promote the interests of the

Corporation by attracting and retaining qualified persons to serve on the Board and to

promote a greater alignment of long term interests between such Participants and the

shareholders of the Corporation.

2. PLAN DEFINITIONS AND INTERPRETATIONS

2.1 In this Plan, the following terms have the following meanings:

(a) “Account” means an account maintained for each Participant on the books of the

Corporation which will be credited with Deferred Share Units, in accordance with

the terms of the Plan.

(b) “Applicable Law” means any applicable provision of law, domestic or foreign,

including, without limitation, applicable securities legislation, together with all

regulations, rules, policy statements, rulings, notices, orders or other instruments

promulgated thereunder and Stock Exchange Rules.

(c) “Board” means the Board of Directors of the Corporation.

(d) Change of Control” means:

(i) the acquisition whether directly or indirectly, by a person or company, or

any persons or companies acting jointly or in concert (as determined in

accordance with the Securities Act (British Columbia) and the rules and

regulations thereunder) of voting securities of the Corporation which,

together with any other voting securities of the Corporation held by such

person or company or persons or companies, constitute, in the aggregate,

more than 50% of all outstanding voting securities of the Corporation;

(ii) an amalgamation, arrangement or other form of business combination of

the Corporation with another company which results in the holders of voting

securities of that other company holding, in the aggregate, 50% or more of

all outstanding voting securities of the Corporation (including a merged or

successor company) resulting from the business combination; or

(iii) the sale, lease or exchange of all or substantially all of the property of the

Corporation to another person, other than a subsidiary of the Corporation

or other than in the ordinary course of business of the Corporation;

(e) “Committee” means the Compensation Committee of the Board.

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(f) “Common Shares” means common shares of the Corporation and includes any

securities of the Corporation into which such Common Shares may be converted,

reclassified, redesignated, subdivided, consolidated, exchanged or otherwise

changed, pursuant to a Reorganization or otherwise.

(g) “Corporation” means Northern Dynasty Minerals Ltd. and its respective

successors and assigns, and any reference in the Plan to action by the Corporation

means action by or under the authority of the Board or any person or committee

that has been designated for the purpose by the Board including, without limitation,

the Committee.

(h) “DSU” or “Deferred Share Unit” means a unit credited to a Participant by way of

a bookkeeping entry in the books of the Corporation pursuant to this Plan, the

value of which is equivalent in value to a Common Share.

(i) “Grant” means any Deferred Share Unit credited to the Account of a Participant.

(j) “Insider” has the meaning provided for purposes of the TSX relating to Security

Based Compensation Arrangements.

(k) “Notice of Redemption” means written notice, on a prescribed form, by the

Participant, or the administrator or liquidator of the estate of the Participant, to the

Corporation of the Participant’s wish to redeem his or her Deferred Share Units.

(l) “Participant” means a non-employee director of the Corporation who is

designated by the Committee as eligible to participate in the Plan.

(m) “Plan” means this Non-Employee Directors Deferred Share Unit Plan, as

amended and restated.

(n) “Redemption Date” means the date that a Notice of Redemption is received by

the Corporation; provided in the case of a U.S. Eligible Participant, however, the

Redemption Date will be made the earlier of (i) “separation from service” within the

meaning of Section 409A of the Code, or (ii) within 90 days of the U.S. Eligible

Participant’s death.

(o) “Reorganization” means any (i) capital reorganization, (ii) merger, (iii)

amalgamation, or (iv) arrangement or other scheme of reorganization.

(p) “Section 409A” means Section 409A of the U.S. Internal Revenue Code of 1986,

as amended, and the Treasury Regulations promulgated thereunder as in effect

from time to time.

(q) “ Security Based Compensation Arrangement ” has the meaning defined in the

provisions of the TSX Company Manual relating to security based compensation

arrangements.

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(r) “Share Price” means the closing price of a Common Share on the TSX averaged

over the five (5) consecutive trading days immediately preceding (a) in the case of

a Grant, the last day of the fiscal quarter preceding the date of Grant in respect of

a director, or (b) in the case of a redemption, the Redemption Date, as applicable,

or in the event such shares are not traded on the TSX, the fair market value of

such shares as determined by the Committee acting in good faith.

(s) “ Stock Exchange Rules” means the applicable rules of any stock exchange upon

which the Common Shares are listed.

(t) “Termination Date” means the date of a Participant’s death, or retirement from,

or loss of office or employment with the Corporation, within the meaning of

paragraph 6801(d) of the regulations under the Income Tax Act (Canada),

including the Participant’s resignation, retirement, removal from the Board, death

or otherwise.

(u) “TSX” means the Toronto Stock Exchange.

(v) “ U.S. Eligible Participant ” refers to a Participant who, at any time during the

period from the date Deferred Share Units are granted to the Participant to the

date such Deferred Share Units are redeemed by the Participant, is subject to

income taxation in the United States on the income received for his or her services

as a director of the Corporation and who is not otherwise exempt from U.S. income

taxation under the relevant provisions of the U.S. Internal Revenue Code of 1986,

as amended, or the Canada-U.S. Income Tax Convention, as amended from time

to time.

3. NON-EMPLOYEE DIRECTOR COMPENSATION

3.1 Establishment of Annual Base Compensation

An annual compensation amount (the " Annual Base Compensation ") payable to non-

employee Directors (hereafter "Directors") of the Corporation shall be established from time-to-

time by the Board. The amount of Annual Base Compensation will be reported annually in the

Corporation’s management information circular.

3.2 Payment of Annual Base Compensation

(a) The Annual Base Compensation shall be payable in quarterly installments, with

each installment payable as promptly as practicable following the last business

day of the fiscal quarter to which it applies. Quarterly payments shall be pro rated

if Board service commences or terminates during a fiscal quarter. The number of

DSUs to be paid and the terms of the DSUs shall be determined as provided in the

following sections of this Plan.

(b) Subject to the limits set forth in Section 6 of this Plan, each Director may elect to

receive in DSUs up to 100% of his or her Annual Base Compensation by

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completing and delivering a written election to the Corporation on or before

November 15th of the calendar year ending immediately before the calendar year

with respect to which the election is made. Such election will be effective with

respect to compensation payable for fiscal quarters beginning during the calendar

year following the date of such election. Further, where an individual becomes a

Director for the first time during a fiscal year and such individual has not previously

participated in a plan that is required to be aggregated with this Plan for purposes

of Section 409A, such individual may elect to participate in the Plan with respect

to fiscal quarters of the Corporation commencing after the Corporation receives

such individual’s written election, which election must be received by the

Corporation no later than 30 days after such individual’s appointment as a

Director. For greater certainty, new Directors will not be entitled to receive DSUs

pursuant to an election for the quarter in which they submit their first election to the

Corporation or any previous quarter. Elections hereunder shall be irrevocable with

respect to compensation earned during the period to which such election relates.

(c) All DSUs granted with respect to Annual Base Compensation will be credited to

the Director's Account when such Annual Base Compensation is payable (the

"Grant Date").

(d) The Director's Account will be credited with the number of DSUs calculated to the

nearest thousandths of a DSU, determined by dividing the dollar amount of

compensation payable in DSUs on the Grant Date by the Share Price. Fractional

Common Shares will not be issued and any fractional entitlements will be rounded

down to the nearest whole number.

3.3 Additional Deferred Share Units

In addition to DSUs granted pursuant to Section 3.2, the Board may award such number

of DSUs to a Participant as the Board deems advisable to provide the Participant with

appropriate equity-based compensation for the services he or she renders to the

Corporation. The Board shall determine the date on which such DSUs may be granted

and the date as of which such DSUs shall be credited to a Participant’s Account. The

Corporation and a Participant who receives an award of DSUs pursuant to this Section

3.3 shall enter into a DSU award agreement to evidence the award and the terms

applicable thereto

4. ADMINISTRATION OF DSU ACCOUNTS

4.1 Administration of Plan

The Committee shall have the power, where consistent with the general purpose and

intent of the Plan and subject to the specific provisions of the Plan:

(a) to establish policies and to adopt rules and regulations for carrying out the

purposes, provisions and administration of the Plan and to amend and rescind

such rules and regulations from time to time;

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(b) to interpret and construe the Plan and to determine all questions arising out of the

Plan and any such interpretation, construction or determination made by the

Committee shall be final, binding and conclusive for all purposes;

(c) to prescribe the form of the instruments used in conjunction with the Plan; and

(d) to determine which members of the Board are eligible to participate in the Plan.

4.2 Redemption of Deferred Share Units

(a) Each Participant shall be entitled to redeem his or her Deferred Share Units during

the period commencing on the business day immediately following the Termination

Date and ending on the 90th day following the Termination Date by providing a

written Notice of Redemption to the Corporation. In the event of death of a

Participant, the Notice of Redemption shall be filed by the legal representative of

the Participant. In the case of a U.S. Eligible Participant, however, the redemption

will be deemed to be made on the earlier of (i) “separation from service” within the

meaning of Section 409A, or (ii) within 90 days of the U.S. Eligible Participant’s

death.

(b) Upon redemption, the Participant shall be entitled to receive, and the Corporation

shall issue or provide:

(i) subject to shareholder approval of this Plan and the limitations set forth in

Section 6.2 below, a number of Common Shares issued from treasury

equal to the number of DSUs in the Participant’s Account, net of any

applicable deductions and withholdings;

(ii) subject to and in accordance with any Applicable Law, a number of

Common Shares purchased by an independent administrator of the Plan

in the open market for the purposes of providing Common Shares to

Participants under the Plan equal in number to the DSUs in the

Participant’s Account, net of any applicable deductions and withholdings;

(iii) the payment of a cash amount to a Participant equal to the number of DSUs

multiplied by the Share Price, net of any applicable deductions and

withholdings; or

(iv) any combination of the foregoing,

as determined by the Corporation, in its sole discretion.

4.3 Payment Notwithstanding

Notwithstanding any other provision of this Plan, all amounts payable to, or in respect of,

a Participant hereunder shall be paid on or before December 31 of the calendar year commencing

immediately after the Participant’s Termination Date.

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5. ALTERATION OF NUMBER OF SHARES SUBJECT TO THE PLAN

5.1 Subdivisions or Consolidations

In the event that the Common Shares shall be subdivided or consolidated into a different

number of Common Shares or a distribution shall be declared upon the Common Shares payable

in Common Shares, the number of DSUs then recorded in the Director’s Account shall be adjusted

by replacing such number by a number equal to the number of Common Shares which would be

held by the Director immediately after the distribution, subdivision or consolidation, should the

Director have held a number of Common Shares equal to the number of DSUs recorded in the

Director’s Account on the record date fixed for such distribution, subdivision or consolidation.

5.2 Reorganizations

In the event there shall be any change, other than as specified in Section 5.1, in the

number or kind of outstanding Common Shares or of any shares or other securities into which

such Common Shares shall have been changed or for which they shall have been exchanged,

pursuant to a Reorganization or otherwise, then there shall be substituted for each Common

Share referred to in the Plan or for each share into which such Common Share shall have been

so changed or exchanged, the kind of securities into which each outstanding Common Share

shall be so changed or exchanged and an equitable adjustment shall be made, if required, in the

number of DSUs then recorded in the Director’s Account, such adjustment, if any, to be

reasonably determined by the Committee and to be effective and binding for all purposes.

5.3 Adjustments

In the case of any such substitution, change or adjustment as provided for in this Section 5, the

variation shall generally require that the number of DSUs then recorded in the Director’s Account

prior to such substitution, change or adjustment will be proportionately and appropriately varied.

6. RESTRICTIONS ON ISSUANCES

6.1 Maximum Number of Common Shares Subject to DSU’s

The aggregate number of Common Shares that are subject to outstanding DSUs granted

pursuant to this Plan from time to time shall not exceed 1.0% of the number of issued and

outstanding Common Shares from time to time. The maximum number of Shares issuable

pursuant to all Security Based Compensation Arrangements, at any time, including all Shares,

options or other rights to purchase or otherwise acquire Shares that are granted shall not exceed

8% of the total number of outstanding Shares.

6.2 Maximum Annual Value of DSUs

The aggregate annual value of Common Shares issuable pursuant to DSU’s granted to

individual non-employee directors of the Company, together with the annual value of all other

Common Shares issuable to such individual non-employee directors pursuant to grants under the

Company’s Security Based Compensation Arrangements, may not exceed $150,000.

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6.3 Maximum Number of Common Shares Subject to DSU’s

The aggregate number of Common Shares that are subject to outstanding DSUs granted

pursuant to this Plan from time to time shall not exceed 1.0% of the number of issued and

outstanding Common Shares from time to time. The maximum number of Shares issuable

pursuant to all Security Based Compensation Arrangements, at any time, including all Shares,

options or other rights to purchase or otherwise acquire Shares that are granted shall not exceed

8% of the total number of outstanding Shares.

6.4 Insider Participation Limits

a. the maximum number of Shares that may be issued to Insiders as a group pursuant

to the Plan, when combined with any Shares that may be issued to Insiders

pursuant to all of the Company’s other Security Based Compensation

Arrangements, may not exceed 8% of the issued Common Shares within any 12

month period;

b. the number of Shares issuable to Insiders as a group under the Plan, when

combined with Shares issuable to Insiders under all the Company’s other security

based compensation plans, may not exceed 8% of the Company’s issued Shares;

c. the aggregate annual value of Shares issuable pursuant to grants of DSUs to

directors who are non-employee directors of the Company may not exceed the

following limits for each individual director:

a. $100,000 in any twelve-month period in the form of DSUs granted under

this Plan, and

b. $150,000 in any twelve-month period when combined with the value of

Shares issuable to the individual non-employee director pursuant to all

grants under all of the Company’s other Share Compensation

Arrangements during the twelve-month period.

7. AMENDMENT, SUSPENSION OR TERMINATION OF THE PLAN

7.1 Amendment to the Plan

Until such time as the Corporation receives shareholder approval of the issuances from

treasury contemplated in Section 4.2(b)(i), the Plan may be amended, suspended or terminated

at any time by the Board in whole or in part. No amendment of the Plan shall, without the consent

of the Participants affected by the amendment, or unless required by Applicable Law, adversely

affect the rights accrued to such Participants with respect to DSUs granted prior to the date of the

amendment.

Following shareholder approval of any issuances from treasury as contemplated in

Section 4.2(b)(i), the Board may at any time, and from time to time, and without shareholder

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approval, amend any provision of the Plan, subject to any regulatory or stock exchange

requirement at the time of such amendment, including, without limitation:

(a) for the purposes of making formal minor or technical modifications to any of the

provisions of the Plan including amendments of a “clerical” or “housekeeping”

nature;

(b) to correct any ambiguity, defective provision, error or omission in the provisions of

the Plan;

(c) amendments to the termination provisions of Section 7.2;

(d) amendments necessary or advisable because of any change in Applicable Laws;

(e) amendments to the transferability of Deferred Share Units provided for in Sections

8.2 and 8.10;

(f) amendments to Section 4.1 relating to the administration of the Plan; and

(g) any other amendment, fundamental or otherwise, not requiring shareholder

approval under Applicable Laws;

provided, however, that:

(h) no such amendment of the Plan may be made without the consent of each affected

Participant in the Plan if such amendment would adversely affect the rights of such

affected Participant(s) under the Plan; and

(i) shareholder approval shall be obtained in accordance with the requirements of the

TSX for any amendment:

(i) to Section 6.1 in order to increase the maximum number of Deferred Share

Units which may be issued under this Plan (other than pursuant to Section

5);

(ii) to either Section 6.2 or Section 6.4(c);

(iii) to Section 7.1; or

(iv) to the definition of “Participant”.

7.2 Plan Termination

The Committee may decide to discontinue granting awards under the Plan at any time in

which case no further Deferred Share Units shall be awarded or credited under the Plan. Any

Deferred Share Units which remain outstanding in a Participant’s Account at that time shall

continue to be dealt with according to the terms of the Plan. The Plan shall terminate when all