POSCO DX Co. on Wednesday reported its third-quarter net income of 21.7 billion won (US$15.7 million), down 17.5 percent from a year earlier.The company said in a regulatory filing that it posted 26.3 billion won in operating profit for the quarter, compared with 32.2 billion won a year ago. Revenue fell 10.1 percent to 318.6 billion won.Source: Yonhap News Agency