STX Shipbuilding Co. reported second-quarter earnings climbed 15.3 per cent from a year earlier on increased demand for high-priced ships. Net profit reached $65.2 million in the April-June period, compared with a profit of 57.4 billion won a year earlier, the company said in a regulatory filing. Sales increased 54 percent to 711 billion won over the cited period, and operating income gained 54 percent to 29.1 billion won. (Source: Yonhap)