Beijing is committed to vigorously promoting a system of regional financial cooperation and exploring a platform for exchanges and cooperation among Asian financial institutions, he added.

"The 'Belt and Road' and the AIIB are both open initiatives. We welcome all countries along the routes and in Asia, as well as our friends and partners around the world, to take an active part in these endeavors," he said, referring to the Silk Road Economic Belt and the 21st Century Maritime Silk Road initiatives.

The AIIB is a China-initiated international financial institution aimed at supporting infrastructure projects in Asia. It is expected to be formally established by the end of this year.