Osisko Metals Appoints Don Siemens to the Board of Directors

MONTREAL, June 06, 2019 - Osisko Metals Inc. (the “Company” or “Osisko Metals Inc.”) (TSX-V: OM; FRANKFURT: 0B51; OTCQX: OMZNF) is pleased to announce the appointment of Mr. Donald R. Siemens, C.P.A., C.A., as a director of the Company and Chairman of the Audit Committee.

Mr. Siemens brings over 40 years of financial experience to the Board as a Chartered Professional Accountant, including eight years in public practice as a partner with major accounting firms, eight years in senior executive positions in the industry and 25 years as a self-employed financial services executive. Mr. Siemens has been an independent financial advisor, specializing in corporate finance, cross-border transactions and mergers and acquisitions since 1989. He currently serves as a Director and Audit Committee Chair for Atlantic Gold Corp., Skeena Resources Ltd., and Hansa Resources Limited. Previously, Mr. Siemens was Partner-in-Charge of Thorne Ernst & Whinney's (now KPMG) Financial Advisory Services group. Mr. Siemens obtained a B.A. from the University of British Columbia followed by a Chartered Professional Accountant (Chartered Accountant) designation.

“On behalf of the Company I am very pleased to welcome Don to the Board at Osisko Metals” said Robert Wares, Executive Chairman. “I had the pleasure of serving with Don on two previous boards, including Arizona Mining, and he brings a wealth of financial and accounting experience to our team.”

Osisko Metals also announces today the resignation of Mr. Claude Charron as a director of the Company. The Board wishes to express its gratitude to Mr. Charron for his services over the years, including his position as director of Osisko Metals’ precursor company, Bowmore Exploration.

About Osisko Metals
Osisko Metals is a Canadian exploration and development company creating value in the base metal space with a focus on zinc mineral assets. The Company controls Canada’s two premier historical zinc mining camps: The Pine Point Mining Ltd. Camp (“PPMC”), located on the south shore of Great Slave Lake in the Northwest Territories, near established infrastructure, paved highway access and with 100 kilometres of mine haulage roads and power substation already in place. The PPMC currently hosts a NI43-101 Inferred Mineral Resource of 38.4 Mt grading 4.58% zinc and 1.85% lead, making it the largest near-surface, pit-constrained zinc deposit in Canada (please refer to the SEDAR-filed Amended Technical Report for further information). The 2018-2019 drill holes, once fully assayed, will be incorporated into the database with the objective of issuing a new resource estimate in H2 2019. PPMC is located on the south shore of Great Slave Lake in the Northwest Territories, near infrastructure and paved highway access and with 100 kilometres of haulage roads already in place. The Bathurst Mining Camp (“BMC”), located in northern New Brunswick, with NI43-101 Indicated Mineral Resources Ltd. of 1.96 Mt grading 5.77% zinc, 2.38% lead, 0.22% copper and 68.9g/t silver (9.00% ZnEq) and Inferred Mineral Resources Ltd. of 3.85 Mt grading 5.34% zinc, 1.49% lead, 0.32% copper and 47.7 g/t silver (7.96% ZnEq) in the Key Anacon and Gilmour South deposits. In Québec, the Company owns 42,000 hectares that cover 12 grass-root zinc targets that will be selectively advanced through exploration in 2019.

Cautionary Note Regarding Forward-Looking Information

This news release contains "forward-looking information" within the meaning of applicable Canadian securities 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 opportunities 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 party 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 obtaining or failures to obtain required governmental, environmental or other project approvals; uncertainties relating to the availability and costs of financing needed in the future; changes in equity markets; inflation; fluctuations in commodity prices; delays in the 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.

Reference to historical production in the vicinity of Osisko Metals properties in this press release does not imply that any future Mineral Resources Ltd. or discoveries will be of economic viability, nor does it imply that additional discoveries will be made.

Neither the 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 news release. No stock exchange, securities commission or other regulatory authority has approved or disapproved the information contained herein.