Thai convenience store chain 7-Eleven has announced a plan to invest TBt1.35bn (US$31.9m) into opening 320 new outlets and strengthening its food business. "This year, the local retail business industry is expected to grow as Thai shoppers spend more, buoyed by sentiment of higher economic growth," Piyawat Titasattavorakul, managing director of CP 7-Eleven, was quoted by the Nation as saying.