Engaging in the acquisition, exploration, development, mining, and production of base and precious metals in North America, the majority of its holdings and operations are in British Columbia.

The Mount Polley mine located 100 km northeast of Williams Lake, British Columbia is an open pit copper/gold mine that started operation in 1997.

In the short term after the breach, the mining company faced protests by local activists including members of the Secwepemc Nation.

The mine's proximity to the Sacred Headwaters and the transboundary nature of environmental management in this region has raised concerns across the border on the Alaskan panhandle.

On February 1, 2015, the Globe and Mail reported that commercial fisherman, native organizations, and the mayors of Sitka and Petersburg have released a joint statement requesting an "equal seat at the table with Canada in discussions about how and if watersheds shared by both countries are developed.