The import price index stood at 154.84 in June, up 0.5 percent from a month earlier, according to the Bank of Korea (BOK). From a year earlier, the index surged 33.6 percent.
It continued to gain for the second straight month after increasing 3.8 percent in May amid the higher commodity prices, caused by geopolitical risks in Europe.
Dubai crude, South Korea's benchmark, averaged 113.27 U.S. dollars in June, up 4.7 percent from a month earlier.
Price for imported mining products picked up 3.8 percent in June on a monthly basis, but intermediate goods price declined 1.5 percent.
Imported capital goods price added 0.1 percent last month, but consumer goods price was unchanged.
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