South Korea’s 10 largest exporters accounted for 60.9% of the country’s overseas shipments in the third quarter, up 20.3 percentage points from a year earlier, as exports surged 72.3% to $318.6 billion, according to Korea Customs Service data released Tuesday. The 10 companies generated approximately 89% of the increase in export value, while the number of exporting businesses rose just 0.3% to 69,988.

The report showed exports to China increasing 113.2%, those to the U.S. rising 98.9% and shipments to a Southeast Asian grouping that includes Taiwan and Hong Kong climbing 93.9%. IT component exports nearly tripled to $153 billion,