Seabridge adds 15-year minelife, $1.3B cost to massive KSM copper-gold project

In an updated prefeasibility study of its proposed KSM mega-mine, Seabridge Gold (TSX: SEA) makes major additions to the cost, size, and operating plan of its flagship project in northwestern B.C. Already one of the largest undeveloped copper-gold porphyry projects in the world, perhaps the most significant changes are reserves increasing by 8.5 million ounces gold and 3 billion pounds copper, much of which came from the newly defined Iron Cap zone.