The average daily throughput of containers at the Shanghai port has been over 100,000 TUEs (twenty-foot equivalent units) since the beginning of April, a sign that the city's function as an international shipping center has been steady even though the city is hit by the current COVID-19 outbreak, Shanghai vice mayor Zhang Wei said during a news conference on Friday.

Zhang also pointed out that 78.7 percent of the city's inbound flights were completed since the beginning of the month.

According to him, about 100 cargo aircraft take off and land at Shanghai Pudong International Airport every day in April.