HD Hyundai Infracore Co. on Friday reported its fourth-quarter net loss of 43.9 billion won (US$33.2 million), swinging from a profit of 32.7 billion won a year earlier. Operating profit for the October-December period was 14 billion won, down 78.9 percent from a year ago, the company said in a regulatory filing. Revenue fell 20.6 percent to 981.6 billion won. The operating profit was 72.6 percent lower than the average estimate, according to a survey by Yonhap Infomax, the financial data firm of Yonhap News Agency. The estimate of net profit was not available. Source: Yonhap News Agency