With 47 million tons of copper resources, the U.S. has untapped potential, but new mines and smelters take decades to develop ...

Copper products were hit with a 50% tariff on Aug. 1, and it's expected to significantly drive up construction costs.

Ontario Premier Doug Ford is warning that U.S. President Donald Trump could choose to suddenly "pull the carpet out from underneath us" by opening up the trade agreement his administration negotiated ...