The interest has been largely from North American-based miners, Barrick President Kelvin Dushnisky said. Denver-based Newmont Mining Corp (NEM.N) and Toronto-based Kinross Gold Corp (K.TO) are likely buyers of the assets, an investment banking source said, speaking on condition of anonymity. As part of its plan to cut at least $3 billion in debt this year, Barrick, the world’s biggest gold producer, last month said it would sell six of its U.S. gold mines and projects: Bald Mountain, Round Mountain, Spring Valley, Ruby Hill, Hilltop and Golden Sunlight assets.