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Trilogy Metals Announces Additions to Senior Management Team

Management Changes

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News Release

Trilogy Metals Announces Additions to Senior Management Team

May 31, 2018 - Vancouver, British Columbia – Trilogy Metals Inc. (TSX/NYSE

American: TMQ) (“Trilogy Metals” or the “Company”) is pleased to announce the additions

of Patrick (“Pat”) Donnelly as Vice President, Corporate Communications and Development

and Robert (“Bob”) Jacko as Vice President, Projects to the Company’s s enior management

team.

Rick Van Nieuwenhuyse, President and Chief Executive Officer said, “ It’s great to have Pat

back on the team. He knows our projects, understands our Company, and knows the minerals

sector well. Bob has a tremendous amount of Arctic experience as Mine Manager at Red Dog

and Pogo. His knowledge of Alaska and working with NANA specifically at Red Dog will be a

huge benefit to the Company as we advance our high-grade Arctic Project towards permitting

and feasibility. Welcome aboard!”

Patrick Donnelly, Vice President, Corporate Communications & Development

Pat Donnelly will be returning to the Company’s senior management team effective June 11,

2018 as Vice President, Corporate Communications and Development. Pat has a broad range

of experience in mineral exploration, capital markets, corporate development and investor

relations. He began his career as a project geologist 25 years ago exploring for precious and

base metals and diamonds in western and northern Canada. Subsequently, Pat worked for a

Canadian securities firm as a base metals analyst. Pat has recently completed over three

years as President at First Mining Gold Corporation (“First Mining”), where he was an original

co-founder at First Mining and responsible for leading the company’s initial public offering and

listing the company on the Toronto Stock Exchange. Pat was instrumental in negotiating and

completing eight M&A transactions. Pat had worked with the Company as Vice President,

Corporate Communications from August 2012 to August 2014 where he developed and

organized institutional and retail marketing strategies for the Company and worked with the

other members of the management team on community relations with the local communities

in Northwest Alaska.

Pat has a Masters of Business Administration from the Rotman School of Management and a

Bachelor of Science in Geological Sciences from the University of British Columbia. As Vice

President, Corporate Communications and Development, Pat will be responsible for all aspects

of Trilogy Metals’ investor relations and marketing and the Company’s overall corporate

communications strategy.

Robert Jacko, Vice President, Projects

Bob Jacko is transitioning from his contract role with the Company to a permanent employee,

joining the senior management team as Vice President, Projects. Bob is a mining engineer

with over 35 years of practice, technical and managerial experience in both underground and

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Symbol: TMQ

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open pit operations within Canada and the United States. He has extensive experience in

mine start-ups, project development, mature operations and closure. In the past eight years,

Bob has focused on engineering oversight working on a variety of pr eliminary economic

assessments, pre -feasibility studies and bankable feasibilities studies for mining projects.

Prior to that, Bob’s positions included but were not limited to, Vice President and General

Manager, Projects for Thompson Creek Metals Inc., G eneral Manager at the Pogo Mine in

Alaska, General Manager at Red Dog Operations, Mine Manager at the Polaris Mine and Mine

Manager at the Sullivan Mine.

Bob has le d the Company’s efforts over the past couple of years in completing the pre -

feasibility study at the Arctic Project and as Vice President, Projects, Bob is responsible for

advancing the Arctic Project towards feasibility and mine permitting.

About Trilogy Metals

Trilogy Metals Inc. is a metals exploration and development company focused on exploring

and developing the Ambler mining district located in northwestern Alaska. It is one of the

richest and most -prospective known copper -dominant districts located in one of the safest

geopolitical jurisdictions in the world. It ho sts world-class polymetallic volcanogenic massive

sulphide (“VMS”) deposits that contain copper, zinc, lead, gold and silver, and carbonate

replacement deposits which have been found to host high grade copper mineralization.

Exploration efforts have been f ocused on two deposits in the Ambler mining district - the

Arctic VMS deposit and the Bornite carbonate replacement deposit. Both deposits are located

within the Company 's land package that spans approximately 143,000 hectares. The

Company has an agreement with NANA Regional Corporation, Inc., a Regional Alaska Native

Corporation that provides a framework for the exploration and potential development of the

Ambler mining district in cooperation with local communities. Our vision is to develop the

Ambler mining district into a premier North American copper producer.

Company Contacts

Rick Van Nieuwenhuyse Elaine Sanders

President & Chief Executive Officer Vice President & Chief Financial Officer

604-638-8088 or 1-855-638-8088

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Cautionary Note Regarding Forward-Looking Statements

This press release includes certain "forward -looking information” and "forward -looking

statements” (collectively "forward -looking statements”) within the meaning of applicable

Canadian and United States securities legislation including the United States Private Securities

Litigation Reform Act of 1995. All statements, other than statements of historical fact,

included herein, including, without limitation, the expected work to be conducted at the

Bornite Project and Arctic Project, further development in th e Ambler Mining District and the

development of the Amble r mining district into a premier North American copper producer ,

impact of Management’s skills and expertise, timing of appointments and responsibilities of

Management are forward-looking statements. Forward-looking statements are frequently, but

not always, identified by words such as "expects”, "anticipates”, "believes”, "intends”,

"estimates”, "potential”, "possible”, and similar expressions, or statements that events,

conditions, or results "will”, "may”, "could”, or "should” occur or be achieved. These forward-

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looking statements may include statements regarding perceived merit of properties;

exploration plans and budgets; mineral reserves and resource estimates; work programs;

capital expenditures; timelines; strategic plans; market prices for precious and base metals;

or other statements that are not statements of fact. Forward -looking statements involve

various risks and uncertainties. There can be no assurance that such statements will prove to

be accurate, and actual results and future events could differ materially from those anticipated

in such statements. Important factors that could cause actual results to differ materially from

the Company's expectations include but are not limited to the uncertainties involving success

of exploration, development and mining activities, permitting timelines, requirements for

additional capital, government regulation of mining operations, environmental risks,

unanticipated reclamation expenses; mineral reserv e and resource estimates and the

assumptions upon which they are based; assumptions and discount rates being appropriately

applied to the PFS; our assumptions with respect to the likelihood and timing of the AMDIAP;

capital estimates; prices for energy inp uts, labour, materials, supplies and services the

interpretation of drill results, the need for additional financing to explore and develop

properties and availability of financing in the debt and capital markets; uncertainties involved

in the interpretation of drilling results and geological tests and the estimation of reserves and

resources; the need for cooperation of government agencies and native groups in the

development and operation of properties as well as the construction of the access road ; the

need to obtain permits and governmental approvals; risks of construction and mining projects

such as accidents, equipment breakdowns, bad weather, non-compliance with environmental

and permit requirements, unanticipated variation in geological structures, metal grades or

recovery rates; unexpected cost increases, which could include sign ificant increases in

estimated capital and operating costs; fluctuations in metal prices and currency exchange

rates; and other risks and uncertainties disclosed in the Company’s Annual Report on Form

10-K for the year ended November 30, 201 7 filed with Ca nadian securities regulatory

authorities and with the United States Securities and Exchange Commission and in other

Company reports and documents filed with applicable securities regulatory authorities from

time to time. The Company 's forward-looking state ments reflect the beliefs, opinions and

projections on the date the statements are made. The Company assumes no obligation to

update the forward -looking statements or beliefs, opinions, projections, or other factors,

should they change, except as required by law.