Global markets today, July 10 -- Asia-Pacific markets opened mixed on Thursday following an announcement by U.S. President Donald Trump that a 50% tariff will be imposed on Brazilian imports starting August 1.

In a letter, Trump stated that the new tariff - a significant jump from the 10% rate implemented in April - aims to counter what he described as a "very unfair trade relationship" between the U.S. and Brazil. He also noted that the sharp increase is, in part, a response to the ongoing legal proceedings against Brazil's former president, Jair Bolsonaro.

Japan's Nikkei 225 index opened with a 0.45% decline, while the Topix fell by 0.54%. In contrast, South Korea's Kospi edged up by 0.24%, and the Kosdaq, focused on smaller-cap stock...