Osisko Corporate Update

(Montréal, June 22, 2016) Osisko Mining Inc. (OSK:TSX, “Osisko” or the “Corporation”) is pleased to announce the addition to its senior management team of Mr. John Hayes, who will fill the position of Senior Vice President, Corporate Development.  Mr. Hayes, a well-recognized and respected figure in the Canadian and international mining industry, is a professional geologist with over 17 years of exploration experience and many years of capital markets experience.  John graduated from Memorial University of Newfoundland with an Honours Bachelor of Science in Geology (1989) and a Master of Science in Geology (1997).  He also holds an MBA from Dalhousie University (2003), and is a member (P. Geo.) of the Professional Engineers and Geoscientists of Newfoundland and Labrador.  From 2003 until 2014, Mr. Hayes was a Managing Director and mining analyst at BMO Capital Markets.  As a mining equity analyst, John covered global precious and base metal companies from exploration to production stages.  Mr. Hayes currently serves as a Director of Eco Oro Minerals Corp. and is a member of the Advisory Board of Aston Bay Holdings Inc..

The Corporation is also pleased to announce that Mr. Jose Vizquerra Benavides, formerly the Senior Vice President of Corporate Development and Chief Operating Officer, will now serve as Osisko’s Executive Vice President of Strategic Development.

About Osisko Mining Inc.

Osisko is a mineral exploration company focused on the acquisition, exploration, and development of precious metal resource properties in Canada. Osisko holds a 100% interest in the high-grade Windfall Lake gold deposit located between Val-dOr and Chibougamau in Québec and holds a 100% undivided interest in a large area of claims in the surrounding Urban Barry area (82,400 hectares), a 100% interest in the Marban project located in the heart of Québecs prolific Abitibi gold mining district, and properties in the Larder Lake Mining Division in northeast Ontario, including the Jonpol and Garrcon deposits on the Garrison property, the Buffonta past producing mine and the Gold Pike mine property. The Company also holds interests and options in a number of additional properties in northern Ontario. Osisko is well financed with approximately $74 million in cash, cash equivalents and marketable securities.

For further information please contact:

John Burzynski
President and Chief Executive Officer
Osisko Mining Inc.
Telephone: (416) 363-8653