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"Cyber security is an ecological system and it needs both internal and external forces to maintain its health," Lan said. "Tencent has begun to strengthen internal supervision for its platforms like WeChat and QQ."

"Fast-moving brands need to launch new products often to make money. But this is not our vision. We want to make our current product the best it can be," he said.

"Even though the cost of air cargo service is higher than transcontinental rail and container vessel operations, we have seen surging demand for such services from domestic companies in shipping their medical supplies, manufactures and retail goods after they resumed production," said Liao Tao, general manager of China Post's goods delivery unit.

"Extending the application of our product to more scenarios is part of our key work this year," said Mario Ji, vice-general manager of the QQ Music unit of Tencent Holdings Ltd. WeSing, a singing app developed by the internet giant allows users to sing, record and share songs with their friends online.

"Diaz-Canel has a rich political career aligned with the generation born after the triumph of 1959 and has been growing with the revolution since he became a student leader," said Gisela Duarte, president of the NCC.