President Trump is amping up trade threats, again unveiling a new batch of letters to country leaders outlining tariffs on goods imported from their countries beginning in August and a warning to BRICS nations.

The president has published just 22 letters, many to minor trading partners like Brunei, Moldova and Sri Lanka.

Copper shipments into the United States are expected to accelerate in the coming weeks in a final scramble to get metal across the border before U.S. President Donald Trump's higher than expected 50% tariff on imported copper takes effect.

President Trump will wield 50% copper tariffs on August 1 as he promises more to come with countries such as Brazil in the crosshairs. Delta’s good news, Nvidia scores the first $4 trillion market cap milestone,

“The U.S. has been sucking in lots of copper that it didn’t really need from around the world,” Albert Mackenzie is a copper analyst at Benchmark Mineral Intelligence. President Trump had signaled that the tariffs were coming months ago, prompting many U.S. buyers to stockpile copper ahead of time.

U.S. President Donald Trump's 50% tariff on copper has placed a record premium on prices of the metal in the United States that is likely to ease over the coming months as a stockpile created by traders anticipating the levy works through the system.

Chile, the world's biggest copper producer, said Wednesday it was awaiting an "official" follow-up on US President Donald Trump's announcement of a 50 percent tariff on imports of the metal. State-owned copper giant Codelco,

Trade tensions and demand worries are among catalysts contributing to recent dip in copper prices. - However, weakness in the industrial metal may be short-lived as the long-term outlook still shines.