The KSM Project (Kerr-Sulphurets-Mitchell) is one of the world’s largest undeveloped copper-gold projects, located in British Columbia’s Golden Triangle, a region renowned for its rich mineral endowment and mining history. Developed by Seabridge Gold, the project encompasses several large deposits containing substantial copper, gold, silver, and molybdenum resources. With its exceptional scale and long mine-life potential, KSM is recognized as a globally significant mining development capable of supplying critical minerals for decades to come.

Designed as a large-scale, integrated mining operation, KSM has undergone extensive engineering, environmental assessment, and permitting efforts, making it one of the most advanced undeveloped mining projects in North America. The project is strategically positioned to support growing global demand for copper and gold driven by infrastructure development, electrification, and the energy transition. With its world-class resource base, established permitting framework, and significant expansion potential, KSM represents a cornerstone asset within Seabridge Gold’s portfolio and a major future contributor to Canada’s mining industry.