The Canadian Malartic Corporation (formerly Osisko Mining Corporation) is a mining company that operates the Malartic mine near Malartic, Quebec. Prior to 2014 the company was a public company named Osisko Mining Corporation with shares listed on the Toronto Stock Exchange and New York Stock Exchange. In 2014, Osisko Mining was subject to a hostile takeover bid by Goldcorp but an alternative bid by white knights Yamana Gold and Agnico Eagle Mines Limited was accepted that, in addition to offering a higher price, created the spin-off Osisko Gold Royalties and turned Osisko Mining Corporation into the subsidiary company Canadian Malartic Corporation jointly owned by Yamana Gold and Agnico Eagle. From its founding in 1982 until 2006, Osisko Mining bought and sold mineral exploration rights in Quebec, conducting exploration work. The company acquired an interest in the Canadian Malartic property in 2004 and after promising feasibility studies the mine was constructed with commercial production achieved in May 2011.is a Canadian company engaged in the exploration and development of several mineral properties in Quebec.