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"By mid-February, the first production lines can provide 1.4 million masks per day," said Lin Yanting, deputy general manager. "And daily output can reach 3.5 million pieces by the end of March with expanded production lines.

"By sharing resources, firms can lower costs in research and development, raw materials, logistics, equipment and labor," he added.

"Certainly, this is going to be a negative for the vehicle market," Chesbrough said.

"China is pretty big geographically, so it may make sense to have factories in other parts of China in order to reduce logistics costs," said Musk at Tesla's annual shareholder meeting in Mountain View, California. "The faster you scale, the more cash you have."

"Chifeng stands as an important node city of the north and south routes of the grassland Silk Road since ancient times. It connected the Inner Mongolia grassland and the Eurasian continent," said Bai Changhong, dean of the Business School of Nankai University.