The exchange with the South American nation suggests the U.S. president also sees trade as a tool to influence other policies of foreign countries.

President Donald Trump sent out a slew of letters Wednesday to some global trading partners, advising them of tariff levels as high as 50% for their exports to the United States.

What Happened in Markets Today Copper prices—and mining stocks—rose after Trump confirmed a 50% tariff on the metal will take effect Aug. 1. Prices for the [metal hit record highs](

Donald Trump's 50% tariff on Brazilian imports has ignited a diplomatic clash with President Lula, who decried “tutelage” and vowed retaliation. Trump

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 Philippines, Sri Lanka, Algeria, Iraq, Libya, Brunei and Moldova are the latest tariff targets. Read more at straitstimes.com. Read more at straitstimes.com.

Trump accused Brazil of "attacks" on US tech companies and conducting a "witch hunt" against its former president Jair Bolsonaro.

Brazil has warned of retaliation after the US imposed a 50% tariff on its copper imports, a move linked to Trump's support for Bolsonaro. President Lu

BRASILIA, April 6 (Reuters) - Brazilian copper output is set to more than double in three years, metal the market will welcome at a time of fast-growing domestic demand and tighter global supplies ...