Osisko Mining Obtains Interim Order for Plan of Arrangement; Update on Special Meeting for Gold Fields Transaction

TORONTO, Sept. 03, 2024 (GLOBE NEWSWIRE) -- Osisko Mining Inc. ("Osisko") (TSX:OSK) is pleased to announce that it has obtained an interim order ("Interim Order") from the Ontario Superior Court of Justice (Commercial List) (the "Court") in respect of the acquisition by Gold Fields Limited, through a 100% owned Canadian subsidiary (the "Purchaser"), of Osisko by way of plan of arrangement under the Business Corporations Act (Ontario) (the "Arrangement").

The Interim Order, among other things, authorizes Osisko to call and hold a special meeting of shareholders of Osisko (the "Special Meeting") to approve the Arrangement. In accordance with the Interim Order, the Special Meeting is schedule to be held at 10:00 a.m. (Toronto time) on Thursday, October 17, 2024, at the offices of Bennett Jones LLP, Suite 3400, One First Canadian Place, Toronto, Ontario, Canada.

Under the terms of the Arrangement, the Purchaser has agreed to acquire all of the issued and outstanding common shares of Osisko (the "Shares") at a price of C$4.90 per Share (the "Consideration"). The Consideration represents a premium of approximately 55% to the 20-day volume weighted average trading price per Share on the Toronto Stock Exchange for the period ending August 9, 2024, being the last trading day prior to the announcement of the Arrangement.

Shareholders of Osisko as of August 30, 2024, being the record date of the Special Meeting, will receive notice of, and be entitled to vote at, the Special Meeting. A management information circular of Osisko (the "Circular"), which will provide further information about the Arrangement, will be mailed to shareholders of Osisko in due course.

The Circular will include the unanimous recommendation of the Board of Directors of Osisko for Osisko's shareholders to vote FOR the Arrangement. The Circular will be available in due course on SEDAR+ (www.sedarplus.ca) under Osisko's issuer profile.

The hearing date for the application for the Final Order of the Court is scheduled for October 22, 2024. The Arrangement is anticipated to become effective on or about October 25, 2024, subject to obtaining the required approvals from the shareholders of Osisko, the final order from the Court, the receipt of all approvals under the Competition Act (Canada) and the satisfaction or waiver of all other closing conditions.

Shareholder Questions

For shareholder inquiries regarding the Arrangement, please contact Laurel Hill Advisory Group:

North America Toll Free: 1-877-452-7184
Calls Outside North America: 416-304-0211
Email: assistance@laurelhill.com

AboutOsisko

Osisko is a mineral exploration company focused on the acquisition, exploration, and development of precious metal resource properties in Canada. Osisko holds a 50% interest in the high-grade Windfall gold deposit located between Val-d'Or and Chibougamau in Québec and holds a 50% interest in a large area of claims in the surrounding Urban Barry area and nearby Quévillon area (over 2,300 square kilometers).

CautionaryStatementRegardingForward-LookingStatements

This news release may contain forward-looking statements (within the meaning of applicable securities laws) which reflect Osisko's current expectations regarding future events. Forward-looking statements are identified by words such as "believe", "anticipate", "project", "expect", "intend", "plan", "will", "may", "estimate"andothersimilarexpressions.Theforward-lookingstatementsinthisnewsreleaseinclude statements regarding the proposed acquisition by the Purchaser of all of the Shares of Osisko and theterms thereof, the anticipated date of the Special Meeting, the anticipated filing of materials on SEDAR+, the expected date of completion of the Arrangement, the receipt of all required regulatory approvals andotherstatements that are not historical fact.

The forward-looking statements in this news release are based on a number of key expectations and assumptions made by Osisko including, without limitation: the Arrangement will be completed on the terms currently contemplated; the Arrangement will be completed in accordance with the timing currently expected; and all conditions to the completion of the Arrangement will be satisfied or waived. Although the forward-looking statements contained in this news release are based on what Osisko's management believes to be reasonable assumptions, Osisko cannot assure investors that actual results will be consistent with such statements.

Theforward-lookingstatementsinthisnewsreleasearenotguaranteesoffutureperformanceandinvolve risksanduncertaintiesthataredifficulttocontrolorpredict. Severalfactorscouldcauseactualresultsto differmateriallyfromtheresultsdiscussedintheforward-lookingstatements.Suchfactorsinclude,among others: the Arrangement not being completed in accordance with the terms currently contemplated or the timingcurrentlyexpected,oratall;expensesincurredbyOsiskoinconnectionwiththeArrangementthatmust bepaidbyOsiskoinwholeorinpartregardlessofwhetherornottheArrangementiscompleted;theconditions to the Arrangement not being satisfied by Osisko and the Purchaser; currency fluctuations; disruptions or changes in the credit or security markets; results of operations; and general developments, market and industry conditions.Additionalfactors areidentifiedinOsisko'sannualinformationformfortheyearended December31,2023andmostrecentManagement'sDiscussionandAnalysis,eachofwhichisavailableon SEDAR+ (www.sedarplus.ca) under Osisko's issuer profile.

Readers,therefore,shouldnotplaceunduerelianceonanysuchforward-lookingstatements.Therecanbe noassurancethattheArrangementwillbecompletedorthatitwillbecompletedonthetermsandconditions contemplated in this news release. The proposed Arrangement could be modified or terminated in accordance withits terms. Further, theseforward-looking statements are made as of the date of this news releaseand,exceptasexpresslyrequiredbyapplicablelaw,Osiskoassumesnoobligationtopubliclyupdate orreviseanyforward-looking statement, whetherasa resultofnewinformation,futureeventsorotherwise.

ContactInformation:

John Burzynski
Chairman & Chief Executive Officer
(416) 363-8563