S-1 Corp. on Thursday reported its second-quarter net income of 43.3 billion won (US$31.3 million), up 5.5 percent from a year earlier.The company said in a regulatory filing that it posted 52.3 billion won in operating profit for the quarter, compared with 54.5 billion won a year ago. Revenue rose 7.2 percent to 695.6 billion won.Source: Yonhap News Agency