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Trilogy Metals Provides Project Update

Corporate Updates

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News Release

Ambler Road Draft EIS Set for Release July 19, 2019 &

Trilogy Metals Provides Project Update

May 20, 2019 - Vancouver, British Columbia – Trilogy Metals Inc. (TSX/NYSE

American: TMQ) (" Trilogy Metals ”, “Trilogy” or the “Company”) is pleased to provide an

update on the Ambler access road and its project activities. The Company has now completed

preparations to open the Bornite camp to accommodate the 201 9 field programs on the

Company’s 100% -owned Upper Kobuk Mineral Projects located in Northwest Alaska. All

amounts are in US dollars.

Ambler Mining District Industrial Access Project

The Company continues to work closely with the Alaska Industrial Development and Export

Authority (“AIDEA”) who is permitting the Ambler road, and we have been in contact with the

various parties involved in the permitting of the Ambler Mining District Industrial Access Project

(“AMDIAP”). According to the Bureau of Land Management (“BLM”), which is the lead federal

agency, the permitting of the AMDIAP is moving along as scheduled. The Preliminar y Draft

Environmental Impact Statement (“EIS”) has been made available to all the cooperating

agencies, including: the Bureau of Land Management, the US Army Corps of Engineers, the US

Park Service, the US Department of Transportation, the US Coast Guard a nd the US Fish and

Wildlife Service , the Alaska Department of Natural Resources , the Alaska Department of

Environmental Conservation , the Northwest Arctic Borough , and several participating Tribal

entities.

According to the FAQ section of the BLM website for the Ambler Road Project or AMDIAP, the

draft EIS is expected to go out for public comment on July 19, 2019. A 45-day public comment

period is scheduled. Locations of the public meetings, including the ANLICA 810 hearings, are

to be determined. The Final EIS is scheduled to be complete October 31, 2019. Shortly after

the final EIS has been issued, the Company expects the BLM to issue the Record of Decision

for the Right-of-Way across federal BLM managed lands , and the Army Corps of Engineers to

issue the 404 Wetlands Dredge and Fill Permit as per the Clean Water Act.

Rick Van Nieuwenhuyse, President and CEO of Trilogy Metals commented, “ I am extremely

pleased at the progress that the BLM has made in permitting the AMDIAP and expect that all

the permitting activities should be completed before the end of 2019. The completion of the

federal EIS process for the A mbler Mining District Access Road represents a significant

milestone for the Company and is a demonstration of what Governor Dunleavy has stated

clearly many times : “Alaska is open for business.” We commend the BLM and other

participating Federal and State agencies in their efforts to remain on task and on schedule.”

The BLM is the lead federal agency for the Ambler Road project and is developing an

TSX, NYSE American

Symbol: TMQ

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Environmental Impact Statement under the National Environmental Policy Act to evaluate

whether or not to grant a right -of-way for the Ambler Road across BLM lands. The prop osed

project crosses state lands (61%) and Native corporation lands (15%), but also crosses federal

lands (24%) managed by the BLM and the National Park Service. AIDEA has submitted a

permit application to request right-of-way across BLM lands.

The AMDIAP is anticipated to provide surface access to the Ambler Mining District, long known

to contain significant deposits of copper, lead, zinc, gold and silver and specifically including

the Company’s Upper Kobuk Mineral Projects – Arctic and Bornite. The AMDIAP is modeled on

AIDEA’s successful DeLong Mountain Transportation System (“DMTS”), which includes an

industrial access road from the Red Dog Mine to the DMTS port. AIDEA worked with private

investors to finance construction of the DMTS industrial access road, and the costs of road

construction were paid back through tolls paid by the mine for use of the road. No State of

Alaska general funds were used to construct the DMTS and that is exactly what is anticipated

for the AMDIAP.

Ambler District Exploration Program

The Company has already commenced the $2 million exploration program along the 100 -

kilometer Ambler Volcanogenic Massive Sulphide (“VMS”) Belt funded equally by Trilogy and

South32 Limited (ASX, LSE, JSE: S32; ADR: SOUHY) (“South32”). Specifically, we are just

completing the district-wide VTEM and ZTEM geophysical surveys , which were flown on 200

and 400 meter line spacing over both the Cosmos Hills and the entire Ambler VMS Belt. Both

surveys are electromagnetic surveys that have been successful in identifying targets and

mineralization in VMS districts. The survey data is currently being processed to identify and

prioritize drill targets for follow up geologic mapping, soil geochemistry and drilling – including

on known historic resources previously identified along the 100-kilometer long belt (Figure 1).

Bornite Project

The 2019 program and budget of $9.2 million , funded entirely by South32 , for the Bornite

Project will be mainly directed at i) approximately 8,000 meters in 12 holes of infill and

expansion drilling on the Bornite deposit; ii) additional metallurgical work to optimize copper

recoveries and the determination of next steps for the recovery of cobalt; and iii) initial

engineering studies to prepare Bornite for a preliminary economic assessment once the work

from the 2019 work programs are completed , including drill results, metallurgical program

updates, a resource update and ongoing environmental baseline data collection. The 2019 drill

campaign is anticipated to begin in early June.

Arctic Project

The Company is close to completing preparations for the summer field season at the Arctic

Project and expects to commence work in June 2019. Specifically, the Company will continue

to advance engineering and environmental work in 2019 in support of completing a feasibility

study and preparing the Arctic Project for permitting. The total budgeted amount for the se

activities for 2019 is $7.0 million. The Company will undertake additional hydrological and

geotechnical work at the site along with water management, tailings facility and waste rock

containment analysis and design. Additional metallurgical test work to verify ore hardness and

grinding characteristics is currently on -going with materials from the project. The Company

expects to complete the feasibility study in the first half of 2020.

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Figure 1. Location of Historic Resources at the Ambler VMS Belt

1. Source: Anaconda Copper Mining Company (“ACM”), ACM Internal Report, 1981

2. Source: Kennecott Mines Company (“KMC”), KCM Internal Report, 1985

3. Source: Kennecott Mines Company (“KMC”), KCM Internal Report, 1997

4. Source: Bear Creek Mining Company (“BCM”), BCM Progress Report, 1983

5. Source: Kennecott Mines Company (“KMC”), KCM Internal Report, 1997

6. Source: North of 60 Mining News, September 7, 2018. The Sun project is 100% -owned by Valhalla Metals

Inc. Inferred resources have a great amount of uncertainty as to their existence and as to whether they can

be mined legally or economically. It cannot be assumed that all or any part of inferred resources will ever be

upgraded to a higher category. See “Cautionary Note to United States Investors.”

7. “Arctic Project, Northwest Alaska, USA, NI 43-101 Technical Report on Pre-Feasibility Study”. See the news

release at https://Trilogy PR February 20, 2018 and the technical report which is available on the Company’s

website at https://trilogymetals.com/assets/docs/2018-04-06-Arctic-NI-43-101-TechReport.pdf or on the

Company’s profiles at www.sedar.com and www.sec.gov.

A Qualified Person has not done sufficient work to classify the above historical

estimates (Smucker, Horse Creek, Sunshine, Shungnak and BT) as current mineral

resources or mineral reserves. Trilogy is not treating these historical estimates as

current mineral resources or mineral reserves, has not verified the above historical

resource estimates and is not relying on them. The historical estimates were

prepared prior to the adoption and implementation of National Instrument 43 -101 -

Standards of Disclosure for Mineral Projects (“NI 43-101”) and do not use categories

that conform to the current Canadian Institute of Mining, Metallurgy and Petroleum

Definition Standards for Min eral Resources and Mineral Reserves. Additional work,

including drilling, would need to be carried out on these historical resources to make

them complaint with NI 43-101.

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Qualified Persons

Andrew W. West, Certified Professional Geologist, Exploration Manager for Trilogy Metals Inc.,

is a Qualified Person as defined by National Instrument 43 -101. Mr. West has reviewed the

technical information in this news release and approves the disclosure contained herein.

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 hosts 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 and cobalt mineralization.

Exploration efforts have been focused 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 a pproximately 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 Contact

Patrick Donnelly

Vice President, Corporate Communications & Development

[email protected]

604-630-3569

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, potential permitting and development of the ADMIAP,

planned expenditures and the anticipated drilling, survey and other activity at the Company’s properties and the timing

thereof, the timing and the filing of updated reports on the Company’s projects, the future price of copper and cobalt,

the estimation of mineral reserves and mineral resources, the realization of mineral reserves and mineral resource

estimates, the potential increase in copper mineralization at the Bornite Project, costs of production, c apital

expenditures, costs and timing of the development of projects , are forward -looking statements. The metallurgical

results discussed in this press release should not be considered representative of other drilling results for the 201 9

drilling campaign. 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 -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 the uncertainties involving

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success of exploration, development and mining activities, permitting timelines, requirements for additional capital,

government regulation of mining operations, environmental risks, unanticipated reclamation expenses; mineral

reserve and resource estimat es and the assumptions upon which they are based; assumptions and discount rates

being appropriately applied to the pre-feasibility study; our assumptions with respect to the likelihood and timing of

the AMDIAP; capital estimates; prices for energy inputs, 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 o f 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 significant 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 8 filed

with Canadian 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 statements 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.

Cautionary Note to United States Investors

This press release has been prepared in accordance with the requirements of the securities laws in effect in Canada,

which differ from the requirements of U.S. securities laws. Unless otherwise indicated, all resource and reserve

estimates included in this press release have been prepared in accordance with Canadian National Instrument 43-101

Standards of Disclosure for Minera l Projects (“NI 43 -101”) and the Canadian Institute of Mining, Metallurgy and

Petroleum (CIM)—CIM Definition Standards on Mineral Resources and Mineral Reserves, adopted by the CIM Council,

as amended (“CIM Definition Standards”). NI 43 -101 is a rule devel oped by the Canadian Securities Administrators

which establishes standards for all public disclosure an issuer makes of scientific and technical information concerning

mineral projects. Canadian standards, including NI 43 -101, differ significantly from the requirements of the United

States Securities and Exchange Commission (SEC), and resource and reserve information contained herein may not

be comparable to similar information disclosed by U.S. companies. In particular, and without limiting the generality of

the foregoing, the term "resource” does not equate to the term "reserves”. Under U.S. standards, mineralization may

not be classified as a "reserve” unless the determination has been made that the mineralization could be economically

and legally produce d or extracted at the time the reserve determination is made. The SEC's disclosure standards

normally do not permit the inclusion of information concerning "measured mineral resources”, "indicated mineral

resources” or "inferred mineral resources” or other descriptions of the amount of mineralization in mineral deposits

that do not constitute "reserves” by U.S. standards in documents filed with the SEC. Investors are cautioned not to

assume that all or any part of “measured” or “indicated resources” will ev er be converted into “reserves”. Investors

should also understand that "inferred mineral resources” have a great amount of uncertainty as to their existence and

great uncertainty as to their economic and legal feasibility. Under Canadian rules, estimated " inferred mineral

resources” may not form the basis of feasibility or pre-feasibility studies except in rare cases. Disclosure of "contained

ounces” in a resource is permitted disclosure under Canadian regulations; however, the SEC normally only permits

issuers to report mineralization that does not constitute "reserves” by SEC standards as in -place tonnage and grade

without reference to unit measures. The requirements of NI 43 -101 for identification of "reserves” are also not the

same as those of the SEC, and reserves reported by Trilogy Metals in compliance with NI 43-101 may not qualify as

"reserves” under SEC standards. Arctic does not have known reserves, as defined under SEC Industry Guide 7.

Accordingly, information concerning mineral deposits set forth herein may not be comparable with information made

public by companies that report in accordance with U.S. standards.