E FENG: That's Cloud Zhao, a sales director at the company. Restarting production was a lengthy process. They first had to provide local officials a full list of all employees.
ZHAO: (Through interpreter) This list is analyzed by the public security bureau. And using big data, they determine which workers are safe and can come back to work in the factory.
E FENG: By big data, Zhao is referring to a new government app developed to help control the spread of the virus. Workers enter their national ID number and phone number. The app then spits out which cities and provinces the worker has visited in the last two weeks. If they've passed through a heavily infected area, they must quarantine for two weeks before they return to Xusheng's production line. And that's just the first step.