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Osisko Metals Starts Aggressive Phase 1 Drill Program IN the Bathurst Mining CAMP

Exploration Programs

OSISKO METALS STARTS AGGRESSIVE PHASE 1 DRILL PROGRAM IN THE

BATHURST MINING CAMP

(Montréal, Québec – September 11, 2017) Osisko Metals Incorporated (the “ Company” or

“Osisko Metals ”) (TSX -V:OM; FRANKFURT: OB5) is pleased to announce the

commencement of an aggressive 50,000 met er diamond drilling campaign in the world class

Bathurst Mining Camp (the “BMC”) in New Brunswick, Canada. Drilling will focus on resource

definition and expansion of the historical Gilmore South, Mount Fronsac, Flat Landing Brook

and Louvicourt deposits (see Figure 1), all 100% owned by Osisko Metals.

Figure 1: Osisko Metals property holdings in the BMC. Historical deposits for Phase 1 drilling have red highlighted

text. Shown resources are unclassified historical resources and not NI43-101 compliant. The Company is not

treating these historical estimates as current mineral resources and they are shown for reference purpose only.

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The Company has continued to consolidate its position in the prolific Bathurst Mining Camp

with the addition of 519 new claim units (1 1,343 Ha) since the acquisitio n of the Mt Fronsac

property (see news release date July 6, 2017). Osisko Metals now controls over 51,647 hectares

in the camp. This latest strategic claim acquisition covers the area east of the Brun swick Belt

stratigraphy and the interpreted Brunswick Horizon near the Carboniferous contact (see complete

land package in Figure 1). These land holdings cover a significant portion of key favorable

stratigraphy throughout the BMC.

President Jeff Hussey commented “We recognize the tremendous exploration opportunity in the

Bathurst Mining Camp. Our first step is to build a resource base from historical deposits.

Secondly, we continue to consolidate areas of interest as we initiate an aggressive camp -scale

exploration campaign. We are eager to define viable zinc resources through a drill -focused

exploration strategy”.

Resource Expansion and Regional Exploration

Both the deposit scale and regional exploration programs will make use of the MiraGeoscience

Common Earth Modelling technology that is an innovative, holistic, 3D modelling and target

generation tool. This will generate a prioritized stream of high potential drill targets . This

approach combines geological interpretation with geophysical and geochemical data sets that are

merged into one common 3D-GIS ( GOCAD) software platform to optimize drill targeting.

Furthermore, this will lead toward the construction of the first 3D model of the entire BMC to

identify new and untested mineralized VMS horizons.

The goal of these efforts is t o quickly expand the Company’s resource base and to generate

highly prospective brownfield and greenfield targets throughout the BMC.

About the Bathurst Mining Camp

The BMC is the third largest volcanogenic massive sulphide mining camp in the world, and it is

well known for extensive zinc, lead, copper and silver mineralization as well as multiple deposits

and base metal mines including the former Brunswick # 12 Mine that produced 137 million

tonnes of ore grading 8.74% zinc, 3.44% lead, 0.37% copper and 10 2 g/t silver between 1964

and 2013.

About Osisko Metals

Osisko Metals is a Canadian base metal exploration and development company creating value in

base metals with an emphasis on the zinc space. In 2017, the Company acquired over 50,000

hectares in t he Bathurst Mining Camp (“BMC”) . The objective is to develop a multi -deposit

asset base that would feed a central concentrator. In parallel, Osisko Metals is monitoring several

base metal oriented peers for projects hosting zinc, copper, and nickel for acquisition

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opportunities. In Québec, the Company acquired 42,000 hectares that cover 12 grass -root zinc

targets that will be selectively advanced through exploration . Osisko Gold Royalties Ltd.

(TSX/NYSE: OR) and Osisko Mining Inc. (TSX: OSK) are significant sh areholders of the

Company.

For further information on Osisko Metals, visit www.osiskometals.com or contact:

Jeff Hussey

President & CEO

Osisko Metals Incorporated

(514) 861-4441

Email: [email protected]

www.osiskometals.com

Christina Lalli

Director, Investor Relations

Osisko Metals Incorporated

(514) 861-4441

Email: [email protected]

www.osiskometals.com

Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture

Exchange) accepts responsibility for the adequacy or accuracy of this release.

Cautionary Note Regarding Forward-Looking Information

This news release contains " forward‐looking information" within the meaning of the applicable Canadian securities legislation

that is based on expectations, estimates, projections and interpretations as at the date of this news release. The information

provided in this news release about the exploration and/or resource development projects, including new results from drill

programs, the significance of assay results, potential mineralization, including the discovery of new mineralized zone, the

potential to extend mineralization in any direction, the ability to complete any proposed exploration activities and the resu lts of

such activities, the continuity or extension of any mineralization and any other information h erein that is not a historical fact,

may all be forward -looking information. Any statement that involves discussions with respect to predictions, expectations,

interpretations, beliefs, plans, projections, objectives, assumptions, future events or performa nce (often but not always using

phrases such as "expects", or "does not expect", "is expected", "interpreted", "management's view", "anticipates" or "does no t

anticipate", "plans", "budget", "scheduled", "forecasts", "estimates", "believes" or "intends" or variations of such words and

phrases or stating that certain actions, events or results "may" or "could", "would", "might" or "will" be taken to occur or be

achieved) are not statements of historical fact and may be forward -looking information and are int ended to identify forward -

looking information. This forward -looking information is based on reasonable assumptions and estimates of management of the

Company, at the time it was made, involves known and unknown risks, uncertainties and other factors which may cause the

actual results, performance or achievements of Company to be materially different from any future results, performance or

achievements expressed or implied by such forward-looking information. Such factors include, among others, risks relating to the

ability of exploration activities (including drill results) to accurately predict mineralization; errors in management's geol ogical

modelling; the ability of Company to complete further exploration activities, including drilling; property interest s in the relevant

projects; the ability of the Company to obtain required approvals and complete transactions on terms announced; the results o f

exploration activities; risks relating to mining activities; the global economic climate; metal prices; dilutio n; environmental

risks; and community and non –governmental actions. Although the forward -looking information contained i n this news release

is based upon what management believes, or believed at the time, to be reasonable assumptions, Company cannot guarantee

shareholders and prospective purchasers of securities of the Company that actual results will be consistent with suc h forward-

looking information, as there may be other factors that cause results not to be as anticipated, estimated or intended, and ne ither

Company nor any other person assumes responsibility for the accuracy and completeness of any such forward looking

information. Company does not undertake, and assumes no obligation, to update or revise any such forward looking statements

or forward-looking information contained herein to reflect new events or circumstances, except as may be required by law.