China's infrastructure sector could raise nearly $5bn (€3.7bn) in the coming months as a string of ports, airlines and other firms launch initial public offerings to profit from the country's bullish capital markets and booming economy, Hong-Kong based analysts have said.

Yesterday, it emerged that oil industry port operator, Quingdao Port Group, plans to raise $528m in a Shanghai flotation in late September. It has hired UBS, Citic Securities and BOC International Holdings to manage the float.