Mr. John Burzynski reports

BEAUFIELD OBTAINS FINAL COURT ORDER FOR ARRANGEMENT

Beaufield Resources Inc. has obtained the final order of the Superior Court of Quebec for the proposed arrangement (as defined herein) with Osisko Mining Inc.

Assuming that all conditions precedent are satisfied or waived, Osisko and Beaufield currently anticipate the closing of the arrangement to occur on Oct. 19, 2018.

The arrangement

On Aug. 14, 2018, Osisko and Beaufield entered into a definitive arrangement agreement, whereby, subject to the terms and conditions of the arrangement agreement, Osisko will acquire all of the issued and outstanding common shares of Beaufield which it does not already own, pursuant to a statutory plan of arrangement under the provisions of the Canada Business Corporations Act. In addition, pursuant to the arrangement, all of the outstanding options to acquire shares of Beaufield and all of the outstanding warrants exercisable into shares of Beaufield, to the extent they have not been exercised prior to the effective time of the arrangement, will be exchanged for such number of options or warrants, as the case may be, to acquire shares of Osisko.

Under the terms of the arrangement, shareholders of Beaufield (other than Osisko and any shareholders of Beaufield validly exercising dissent rights, if any) will be entitled to receive 0.0482 of a share of Osisko in exchange for each share of Beaufield held immediately prior to the effective time of the arrangement.

Further details regarding the arrangement are set out in the management information circular of Beaufield dated Sept. 11, 2018, which is available on SEDAR under Beaufield's issuer profile.

About Osisko Mining Inc.

Osisko Mining is a mineral exploration company focused on the acquisition, exploration and development of precious metal resource properties in Canada. Osisko Mining holds a 100-per-cent interest in the high-grade Windfall Lake gold deposit located between Val d'Or and Chibougamau in Quebec, and 100-per-cent undivided interest in a large area of claims in the surrounding Urban Barry area and nearby Quevillon area (over 3,300 square kilometres), a 100-per-cent interest in the Marban project located in the heart of Quebec's prolific Abitibi gold mining district, and properties in the Larder Lake mining division in Northeast Ontario, including the Buffonta past-producing mine, the Jonpol and Garrcon deposits on the Garrison property, and the Gold Pike mine property. The corporation also holds interests and options in a number of additional properties in Northern Quebec and Ontario.