The United States will impose a 50% tariff on copper pipes and wiring, President Donald Trump said on Wednesday, but details of the levy fell short of the sweeping restrictions expected and left out copper input materials such as ores,

The president's proclamation imposes a 50 per cent tariff on semi-finished copper products and other products that copper is heavily used to manufacture. The move is essentially a boost to Chile and Peru,

President Trump on Wednesday formalized a tariff on all copper imports, after posting about it on social media earlier in the month.