The president was following through on an earlier statement that he would target a key metal used for semiconductors, lithium ion batteries and more.

Trump announced a 50% tariff on copper imports into the United States. The move follows a probe into national security risks ...

The announcement came hours after he also informed Brazil that its "reciprocal" tariff on August 1 would rise to 50% from 10% ...

The US President also issued a round of tariff letters to seven minor trading partners: the Philippines, Brunei, Moldova, Algeria, Iraq, Libya and Sri Lanka.

In a forceful statement, he defended the country’s legal system and said the U.S. has had a trade surplus of more than $410 billion with Brazil over the past 15 years.

The U.S. will impose 50% tariffs on global imports of copper effective on Aug. 1, President Trump posted online on Wednesday.

In a forceful statement, he defended the country’s legal system and said the U.S. has had a trade surplus of more than $410 billion with Brazil over the past 15 years.

President Trump has announced — but postponed the effective date for — higher tariffs once again. Here's what to know about ...