TORONTO, July 22, 2022 (GLOBE NEWSWIRE) — Osisko Mining Inc. (TSX:OSK) (the " Corporation " or " Osisko ") today announced that it has filed an early warning report in respect of Vior Inc. (" Vior "") in connection with Vior's private placement (the " Private Placement ") offering of units. Osisko exercised its equity participation right pursuant to an Investor Rights Agreement previously entered into by Vior and the Corporation and subscribed for 1,923,000 units (" Units ") at a price of $0.13 per unit. Each Unit is comprised of one common share in the capital of Vior (a " Common Share ") and one-half of one Common Share purchase warrant (each whole warrant a " Warrant "). Each Warrant entitles Osisko to acquire one additional Common Share at an exercise price of $0.21 per Common Share for a period of 30 months from the closing date.