Chile, Canada and Peru, top copper suppliers to the US, have submitted letters to the US Commerce Department stating that ...

A letter from Peru's foreign trade ministry also called for the United States to exclude the South American country from restrictions, noting that its copper imports posed no security risks.

In its letter to the DOC, KITA argued that Korean copper products do not threaten U.S. national security and, in fact, help strengthen the stability of U.S. supply chains. KITA noted that Korean ...

WASHINGTON (AP) — President Donald Trump on Tuesday directed the government to consider possible tariffs on copper ... with Canadian energy products such as oil and electricity being taxed ...