President Donald Trump imposed sweeping 25% tariffs on all steel and aluminum imported into the United States Wednesday, a policy aimed at leveling the playing field for US manufacturing but a move that threatens to drive up prices on a broad range of consumer and industrial goods for Americans.

Canada’s announcement comes despite a detente having been reached Tuesday over the threat of a 25% surcharge on U.S. electricity consumers.

Canada is the largest foreign supplier of steel and aluminum to the U.S.