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 U.S. is expected to implement a 50% tariff on copper imports at the end of the week, but what happens next is anyone’s guess as talk of an exemption for Chile, the biggest U.S. supplier of the metal,

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