Samsung C and T Corp. on Wednesday reported its second-quarter net income of 734 billion won (US$533.2 million), up 5.7 percent from a year earlier.Operating profit for the April-June period was 900.4 billion won, up 16.6 percent from a year ago, the company said in a regulatory filing. Sales rose 4 percent to 11 trillion won.The earnings exceeded market expectations. The average estimate of net profit by analysts stood at 628 billion won, according to a survey by Yonhap Infomax, the financial data firm of Yonhap News Agency.Source: Yonhap News Agency