South Korea's exports lost 2.9 percent on-year in the first 20 days of October, data showed Monday.Outbound shipments reached US$32.77 billion in the Oct. 1-20 period, compared with $33.74 billion tallied a year earlier, according to the data from the Korea Customs Service.Imports shed 10.1 percent on-year to $33.76 billion during the period, resulting in a trade surplus of $1 billion.In September, exports rose 7.5 percent on-year to US$58.7 billion, the 12th straight monthly gain, government data showed.Source: Yonhap News Agency