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.

Trade talks between the European Union and the United States are moving in the right direction, the two sides' main negotiators have said, but the EU said the doubling of US tariffs on metals did not help.

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,