Photo taken on July 14, 2014 shows the under-construction Sanya Haitang Bay International Shopping Mall in Sanya city of south China's Hainan province. According to the China Duty Free Group, the shopping mall will begin trial operation on September 1 this year. The 70,000-square-meter shopping mall project, with 5 billion yuan (about 805 million US dollars) investment, will house the world's largest duty-free shop, which covers 45,000 square meters. [Xinhua]