Exports from South Korea held up despite global trade friction. Semiconductor shipments were the biggest exports, while domestic demand showed weakness.
The latest figures provide a mixed picture of healthy exports for the key semiconductor industry.
Export volumes increased by 0.8 percent in the second quarter of 2018 from the previous quarter, compared with a 4.4 percent gain in the first three months of the year.
Import volumes reduced by 2.6 percent, compared with a 4.9 percent increase in the previous quarter.