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By then, it was mid-February. Overseas purchase of face masks became rather difficult following the virus outbreaks in South Korea and Japan. After a friend told him Indonesia had stockpiles, Chan flew to Jakarta.

By then, stand-alone 5G networks, which function better than non-stand-alone networks, will lay down a sound foundation for the wider application of 5G in a variety of industries including mining, Liu said. Non-stand-alone networks differ from stand-alone ones as the former ones still rely on existing 4G infrastructure to realize some functions.

By the end of September, a total of 13,219 firms had been listed on the board, among which 94 percent are SMEs.

By the end of 2018, more than 27,000 Chinese domestic investors had set up 43,000 enterprises for overseas investment in 188 countries and regions, and over 80 percent of the world's countries and regions have Chinese investment, said the report.

By the end of 2017, at least 27 adult tigers and 42 Amur leopards had been reported to roam in Jilin Province, and their numbers are stable.