Business shrinks for contractors

Chinese contractors, such as Yunnan United Trade Co, have been badly affected by the rioting in Vietnam.

Yunnan United has been building ports in Vietnam for more than two decades, but the 2008 global financial crisis saw a drop in contracts that resulted in lower staff numbers.

Liu Bo, the company's general manager, said only one Chinese employee has stayed in Hanoi, the Vietnamese capital, while all other staff have moved to Cambodia to work on new projects.