President Donald Trump said Tuesday he’s imposing a new 50% tariff on all copper imported into the US. However, it’s unclear when the new tariff would take effect. “Today we’re doing copper,” he said at a Cabinet meeting,

President Donald Trump said he would not offer any extensions for the implementation of increased tariffs on many goods imported into the US, pledging that new rates would hit at the beginning of August.

Trump sent letters to 14 countries threatening them with new tariffs, and the White House said more countries may be included in the coming days.