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Liu believes the BeiDou system can provide diverse and innovative services. "For example, the accurate positioning can be used in driving tests and overhauling tracks of high-speed railways," he said.

The first, Lagarde said, was the "bridge to the world" that China started to build 40 years ago. It was constructed by opening its economy and by kickstarting reforms which later "changed the lives and prospects of hundreds of millions of people -- here and beyond China."

The two sides also issued a joint declaration, in which they reviewed the development of bilateral relations and set out priorities for future cooperation.

With a display area measuring 16,000 square meters, this year's expo will offer exhibitors and visitors an overall understanding of the electronics and information industry, said the event's organization committee.

He called on both sides to further improve trade facilitation, expand mutual investment, reinforce agricultural cooperation, boost cross-border e-commerce development and enhance cooperation in areas of innovation, especially the application of science, technology and basic research.