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"Chinese companies are attaching more importance to enhancing the competitiveness of their products by increasing their efforts in technology research and development," said Xu.

"Cooperation is vitally important for solving all of the challenges the world has faced in the global ecological environment," said Laurent Fabius, chairman of the United Nations Climate Change Conference in Paris, who was invited to the conference.

"Chinese companies don't have a long heritage of going abroad. But British companies, for instance, have been doing this since at least the 1600s with the East India Company. Companies like BP and Shell are globally-minded organizations, while Chinese companies are more Chinese-centered," he says.

"China will continue to outshine others at a time when the developed countries are expected to remain mired in economic stagnation," said Justin Yifu Lin, former World Bank chief economist, at the forum, adding that China's economy will remain robust and serve as the world's economic engine.

"Chinese companies are ready to share their technology and experience with Serbian partners. I am sure that such cooperation will be useful for both sides."