Osisko Mining

Osisko Mining Inc. (formerly Oban Mining Corporation) is a Canadian company that conducts mineral exploration work with a focus on seeking to develop a gold mine in Ontario or Quebec. It adopted its name following the 2015 merger of five companies that resulted in the re-uniting of the executive management team of the original Osisko Mining Corporation.

On October 25, 2024, Gold Fields completed the acquisition of Osisko Mining for $1.39 billion.