Export prices in South Korea were up 2.9 percent on month in December, the Bank of Korea said on Wednesday.
That follows the 3.8 percent increase in November.
On a yearly basis, export prices gained 6.3 percent after climbing 3.5 percent in the previous month.
Import prices were up 4.2 percent on month after adding 2.4 percent in November. Import prices also jumped 9.2 percent on year after gaining 3.6 percent a month earlier.