Complex sentence: The funds from the IPO would in turn be used to purchase royalties in various assets, including those of its former parent company, Newmont Mining Corporation, who "spun off" Franco-Nevada to allow the corporation to direct their efforts at their gold operations.
Split into simpler sentences: The funds from the IPO would in turn be used to purchase royalties in various assets, including those of its former parent company, Newmont Mining Corporation. Newmont "spun off" Franco-Nevada to allow the corporation to direct their efforts at their gold operations.