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He said Singapore opposed unilateralism and protectionism, and wanted to work with China to ensure greater interconnectivity and an open world economy.

Stressing that the U.S. arguments against China's behavior are wrong, Cui said, "Chinese economic success has never been achieved by stealing from anyone, and never will be."

To make the most of the benefits that visa liberalization and simplification will bring, the Balkan countries are also working hard to upgrade their service.

"I am convinced that this agreement will open the doors for more Chinese tourists and will improve economic, scientific, cultural and tourist cooperation," Skaka said.