China will further open its mining sector to overseas investors and encourage them to participate in resource exploration and utilization and the development of shale gas, said a senior official on Sunday.

"The Chinese government has attached great importance to the mining industry's contribution to the country's economic growth," said Jiang Daming, minister for land and resources, at the 2013 China Mining Expo in Tianjin.

He said the establishment of the China (Shanghai) Pilot Free Trade Zone signifies that China has stepped into a new stage of openness.