Exports declined by 0.3% from the same month in 2022, to $27.4 billion, affected by double-digit decrease in prices of important Brazilian products such as crude oil, iron ore and beef.
There was also a 33.1% contraction in corn sales, which had been growing in previous months, fueled by China's appetite.
Imports in April fell by 2.6% from a year ago to $19.1 billion, affected by a 9.1% price decline.
In the first four months of the year, Brazil's trade surplus reached $24.1 billion, a 17.9% increase compared with the same period last year. (Reporting by Marcela Ayres; editing by Jonathan Oatis)