코로나 충격에 1분기 상장사 순익 반토막…서비스 직격탄First quarter profits at major firms in South Korea have taken a massive hit.According to the Korea Exchange and the Korea Listed Companies Association, first quarter net profit for 592 companies listed on the country's benchmark KOSPI came to a total of about 9 billion U.S. dollars,... down roughly 48 percent on-year.Operating profit was also down by around 31 percent.The damage was especially severe for companies in parts of the service sector that require face-to-face interaction.Their net profit was down about 76 percent.