China's exports and imports improved modestly in April as trade-related reforms began to show results, easing pressure on the growth of the world's second-largest economy.

Exports edged up 0.9 percent year-on-year to $188.54 billion, compared with a 6.6 percent drop in March. Imports rose 0.8 percent after slumping 11.3 percent in the previous month, the General Administration of Customs said on Thursday.

Total trade expanded 0.8 percent, compared with a first-quarter decline of 1 percent.