Export-bound contianers are stacked at a port in Busan, June 16. Yonhap

Korea's monthly exports hit a fresh high by surpassing the $100 billion mark for the first time in June, amid the record-breaking performance of chips, data showed Wednesday.

Outbound shipments surged 70.9 percent on-year to $102.25 billion in June, according to the Ministry of Trade, Industry and Resources.

Imports rose 30.1 percent on-year to $66.1 billion, resulting in a trade surplus of $36.15 billion.

It also marked the first time that the monthly trade balance has surpassed $30 billion.