The increase in U.S. metals tariffs applies to all trading partners except Britain, the only country so far to strike a preliminary trade agreement with America during a 90-day pause on a wider array of Trump tariffs.

Prime Minister Mark Carney says his government is readying further retaliation measures if negotiations with the United States to end the recently doubled tariffs on steel and aluminum fail.

Canada is going to wait before enacting any further retaliation against the U.S. over higher steel and aluminum tariffs because negotiators are in talks on a new bilateral economic-and-security deal,