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Osisko Metals Announces Phase 1 Drill Progam is Underway at the Gilmour South Project

Corporate Updates

OSISKO METALS ANNOUNCES PHASE 1 DRILL PROGAM IS UNDERWAY AT THE

GILMOUR SOUTH PROJECT

(Montreal – October 1 9, 2017) Osisko Metals Incorporated (the “ Company” or “ Osisko Metals ”)

(TSX-V: OM; FRANKFURT: OB5) is pleased to announce that drilling on the Gilmour South project is

underway. This maiden drill program along the Brunswick Belt is within the previously announced

50,000-meter program planned for the Bathurst Mining Camp (“BMC”) (see news release dated

September 11, 2017).

The objective of the drill program is to increase historical resources and to upgrade them to comply with

NI43-101 regulations. A key part of this effort will be to investigate the potential for the thickening of the

high-grade sulphide mineralization along previously unrecognized structural corrid ors that are typical ly

associated to the major deposits in the BMC.

The Gilmour South project hosts the “Brunswick Horizon ”, and is located 20km south of the former

Brunswick No. 12 mine and 7 km south of the former Brunswick No. 6 Mine. These mines produced

approximately 150 million tonnes of 12% zinc equivalent. Brunswick No. 12 was the largest underground

zinc mine for nearly 50 years , processing 10,500 tonnes per day on average . Both mines occurred in

structural corridors that enhanced the thickness and grade of the sulphide horizon.

The Brunswick Horizon is present at Gilmour South over 1.4 kilometers and is characterized by sulphide

mineralization, identical host-rock types and alteration associated to the Brunswick Mines stratiform zinc-

lead sulphide mineralization.

The historical resources are sparsely drilled leaving room to meet the stated objective . The drill program

will investigate the periphery of the deposit along newly interpreted structural trends. This first phase of

drilling will consist of 17 drill holes for a total of 9 ,500 meters. The deposit remains open on all sides.

Significant previous intersections include:

• GS-99-22: 9.61% Zn, 1.02% Pb, 0.195 Cu, and 32.3g/t Ag / 7.30m

• GS-00-33: 3.35% Zn, 2.32% Pb and 6.9g/t Ag / 1.20m

• GS-98-14: 13.57% Zn, 7.63% Pb, 0.19% Cu, 436g/t Ag / 2.84m

• GS-98-12: 18.10% Zn, 11.20% Pb / 0.22m

• GS-00-38: 7.00% Zn, 1.30% Pb, 10.90g/t Ag / 7.30m

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Figure 1: Osisko Metals ’ Brunswick Belt projects in the BMC. Deposits are listed but these 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 only.

Jeff Hussey, President and CEO of Osisko Metals , commented: “The Gilmour South area is one of the

less explored portions of the highly prospective Brunswick Belt. We strongly believe that there is ample

opportunity for a modern drill hole program to identify additional resources. Previous drilling was more

widely spaced when the main objective was to find feed for the large Brunswick Mine’s concentrator. We

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will be using an innovative and aggressive exploration strategy to develop resources and look forward to

increasing the drill rig count in the near term on our other projects in the Bathurst Mining Camp.”

About Osisko Metals

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

markets with an emphasis on the zinc. 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 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

shareholders 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 applicable Canadian securi ties legislation

based on expectations, estimates and projections as at the date of this news release. Forward -looking information involves risks,

uncertainties and other factors that could cause actual events, results, performance, prospects and opportuni ties to differ

materially from those expressed or implied by such forward -looking information. Forward -looking information in this news

release includes, but is not limited to, the use of proceeds of the Offering; the timing and ability of the Corporation, if at all, to

obtain final approval of the Offering from the TSX Venture Exchange; an exemption being available under MI 61 -101 and Policy

5.9 of the TSX Venture Exchange from the minority shareholder approval and valuation requirements for each related p arty

transaction; objectives, goals or future plans; statements regarding exploration results and exploration plans. Factors that could

cause actual results to differ materially from such forward -looking information include, but are not limited to, capital and

operating costs varying significantly from estimates; the preliminary nature of metallurgical test results; delays in obtaini ng or

failures to obtain required governmental, environmental or other project approvals; uncertainties relating to the availa bility and

costs of financing needed in the future; changes in equity markets; inflation; fluctuations in commodity prices; delays in th e

development of projects; the other risks involved in the mineral exploration and development industry; and those risks set out in

the Corporation's public documents filed on SEDAR at www.sedar.com. Although the Corporation believes that the assumptions

and factors used in preparing the forward -looking information in this news release are reasonable, undue reliance should not be

placed on such information, which only applies as of the date of this news release, and no assurance can be given that such

events will occur in the disclosed time frames or at all. The Corporation disclaims any intention or obligation to update or revise

any forward-looking information, whether as a result of new information, future events or otherwise, other than as required by

law.

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

Venture Exchange) accepts responsibility for the adequacy or accuracy of this news release. No stock exchange, securities

commission or other regulatory authority has approved or disapproved the information contained herein.