Coway Co. on Friday reported its first-quarter net profit of 127.7 billion won (US$93.3 million), up 1.9 percent from a year earlier.The company said in a regulatory filing that operating profit for the January-March period rose 10.3 percent on-year to 193.7 billion won. Sales increased 5.6 percent to 1 trillion won.Source: Yonhap News Agency