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FM.TO ·

First Quantum Minerals Enters into a Framework Agreement with Northern Dynasty Minerals

Mergers & Acquisitions Partnerships & JV

NEWS RELEASE

17-28

December 18, 2017

www.first-quantum.com

FIRST QUANTUM MINERALS ENTERS INTO A FRAMEWORK AGREEMENT WITH

NORTHERN DYNASTY MINERALS

First Quantum Minerals Ltd. (“First Quantum” or the “Company”, TSX Symbol “FM”) today announced that

it has entered into a framework agreement with Northern Dynasty Minerals Ltd. (“Northern Dynasty”) (TSX: NDM)

which contemplates that an affiliate of the Company will subsequently execute an option agreement with Northern

Dynasty (the “Option Agreement”). Within five business days of the execution of the framework agreement, the

affiliate of the Company will make a payment of US$37.5 million (“Early Option Price Instalment”) to Northern

Dynasty. The Early Option Price Instalment will be applied solely for the purpose of progressing the permitting of

the Pebble Project.

The term of the option granted by the Option Agreement will be for a period of four years from the date of satisfaction

of certain conditions precedent, with a right to extend the term of the option for a further period of two years. The

option price for the initial four years is US $150 million (“Option Price”) payable in equal tranches of US $37.5

million, with the Early Option Price Instalment being credited against the Option Price. All of the Option Price will

be applied to advancing the permitting process for development of the Pebble Project. The Option Agreement will

entitle the affiliate to earn a 50% interest in the Pebble Limited Partnership, which is the owner of the Pebble Project

in Alaska by investing an additional total amount of US$1.35 billion in the Pebble Limited Partnership. The entry

by an affiliate of the Company into the Option Agreement is contingent upon due diligence being completed to the

satisfaction of the Company, necessary regulatory approvals being obtained and the successful negotiation of the

final form of the Option Agreement and associated commercial agreements. Finalization and execution of the Option

Agreement and associated commercial agreements is expected to occur early in Q2 2018.

Philip Pascall, Chairman and CEO, commented: “The Option Agreement is an important opportunity to carry out a

detailed assessment of the Pebble Project which is widely acknowledged to be one of the outstanding unmined copper

projects in the world, estimated to contain some 26 million tonnes of copper, 70 million ounces of gold and 1.5

million tonnes of molybdenum in measured and indicated resources at a 0.3% copper equivalent cut off. We are very

aware of the environmental and social sensitivity of this project and will utilize the lengthy option period to apply

our extensive project development and operating experience to ensure that this project can be developed with the

support of stakeholders.

“Concurrently, our main objectives remain the successful delivery of our Cobre Panama project, management of our

balance sheet and the provision of a return to shareholders outside of share appreciation.

“We believe a successful outcome to the permitting process for Pebble would deliver the potential for further growth

in copper for First Quantum well into the future.”

CONFERENCE CALL & WEBCAST

First Quantum will host a conference call and webcast to discuss the transaction as follows:

Date: December 18, 2017

Time: 8:00 am (Eastern); 1:00 pm (GMT); 5:00 am (Pacific)

Webcast: www.first-quantum.com

First Quantum Minerals Option Agreement – Northern Dynasty Minerals 17- 28

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Dial in: North America: (toll free) (877) 291-4570

North America and international: 1 (647) 788-4919

United Kingdom: (toll free) 0-800-051-7107

Replay: Available from noon (Eastern) on December 18, until 11:59 pm (Eastern) on January 1, 2018

North America: (toll free) (800) 585-8367

North America and international: 1 (416) 621-4642

Passcode: 7967738

On Behalf of the Board of Directors of First Quantum Minerals Ltd.

G. Clive Newall

President

For further information, visit our website at www.first-quantum.com

North American contact: Sharon Loung, Director, Investor Relations

Tel: (647) 346-3934 Fax: (604) 688-3818 Toll Free: 1 (888) 688-6577 E-Mail: [email protected]

United Kingdom contact: Clive Newall, President

Tel: +44 140 327 3484 Fax: +44 140 327 3494 E-Mail: [email protected]

CAUTIONARY STATEMENT ON FORWARD-LOOKING INFORMATION

Certain statements and information herein, including all statements that are not historical facts, contain forward -

looking statements and forward-looking information within the meaning of applicable securities laws. The forward-

looking statements include estimates, forecasts and statements as to the Company’s expectations regarding

completion of due diligence, receipt of regulatory approvals, negotiation of and entering into the Option Agreement,

payment of the Option Price, the process of permitting at the Pebble Project, future profitability of the Pebble Project,

and expected timing relating to the foregoing. Often, but not always, forward-looking statements or information can

be identified by the use of words such as “plans” , “expects” or “does not expect”, “is expected”, “budget”,

“scheduled”, “estimates”, “forecasts”, “intends”, “anticipates” or “does not anticipate” or “believes” or variations of

such words and phrases or statements that certain actions, events or results “may”, “could”, “would”, “might” or

“will” be taken, occur or be achieved.

With respect to forward -looking statements and information contained herein, the Company has made numerous

assumptions including among other things, assumptions about the due dili gence process, the Company’s ability to

negotiate the Option Agreement and other definitive agreements, the permitting process, and the ability of each of

the Company and Northern Dynasty to achieve their goals, including with respect to the Option Agreement and the

Pebble Project. Forward-looking statements and information by their nature are based on assumptions and involve

known and unknown risks, uncertainties and other factors which may cause the actual results, performance or

achievements, or industry results, to be materially different from any future results, performance or achievements

expressed or implied by such forward-looking statements or information. These factors include, but are not limited

to, the outcome of due diligence investigations, the permitting process, potential social and environmental challenges,

future production volumes and costs, the temporary or permanent closure of uneconomic operations, costs for inputs

such as oil, power and sulphur, political stability in Zambia, Peru, Mau ritania, Finland, Spain, Turkey, Panama,

Argentina, the United States and Australia, adverse weather conditions in Zambia, Finland, Spain, Turkey,

Mauritania and Panama, labour disruptions, power supply, mechanical failures, water supply, procurement and

delivery of parts and supplies to the operations, and the production of off-spec material.

See the Company’s Annual Information Form for additional information on risks, uncertainties and other factors

relating to the forward-looking statements and information. Although the Company has attempted to identify factors

that would cause actual actions, events or results to differ materially from those disclosed in the forward -looking

statements or information, there may be other factors that cause actual results, performances, achievements or events

not to be anticipated, estimated or intended. Also, many of these factors are beyond the Company’s control.

First Quantum Minerals Option Agreement – Northern Dynasty Minerals 17- 28

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Accordingly, readers should not place undue reliance on forward-looking statements or information. The Company

undertakes no obligation to reissue or update forward- looking statements or information as a result of new

information or events after the date hereof except as may be required by law. All forward -looking statements and

information made herein are qualified by this cautionary statement.