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"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.

"China-Russia ties are mature and stable, and are secure against changes of the external environment," Hua told a daily news conference.

"Conventional Chinese car makers and new players who have joined the race are cooperating with each other in research and development and production," Zhang said earlier this month at the China Automotive Brands Development Summit in Beijing.

"Chinese companies are capable of making most aircraft components, but are less competitive due to higher costs and the design and quality can't catch up," Shanghai Securities Journal quoted an unidentified senior aircraft engineer as saying.

"Currently, we have worked with partners to launch multiple 5G smartphones and bring the 5G experience within reach. Moving forward, we will continue to join forces to bring diverse 5G-powered, innovative applications to more consumers and industries," Meng added.