While exports growth slowed last month, rising 19.4 percent year-on-year to $157.16 billion, the amount was still a record high for a single month based on previous data.
Imports gathered pace, soaring 28.4 percent from a year earlier to $144.11 billion, customs authorities said in a statement.
In April, exports rose 29.9 percent to $155.7 billion while imports increased 21.8 percent to $144.3 billion.