China's latest promise to keep its door open for foreign investors is meant to not only clarify confusion about its economic policies but also encourage regional economic integration.

President Xi Jinping made clear at the Asia-Pacific Economic Cooperation CEO summit in Manila on Wednesday that the Chinese government will substantially cut restrictions on market access for foreign investment.

The remark represents a clear-cut answer to recent complaints from some foreign enterprises about the obstacles to market access and the difficulties they face in China.