China's stocks fluctuated within small ranges in the morning session on Tuesday after customs data showed the country's exports slowed in June.

The benchmark Shanghai Composite Index dipped 0.18 percent at opening and widened losses to 0.53 percent to end the morning session at 2,159.33.

The Shenzhen Component Index slid 0.3 percent to open at 9,467.75 but pared losses to 0.13 percent to close the morning break at 9,484.11.

China's exports rose 11.3 percent year-on-year to 180.21 billion U.S. dollars in June, slowing from the 15.3 percent in May, the General Administration of Customs said Tuesday.

The imports increased 6.3 percent to 148.48 billion U.S. dollars, compared with a growth of 12.7 percent a month earlier.

In the first six months, the total foreign trade reached 1.84 trillion U.S. dollars, an increase of 8 percent year on year.