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As many ports in Italy, the Netherlands, Spain and Portugal have temporarily shut or face severe curbs on the movement of people and vessels, container availability had dwindled sharply at major European ports such as Hamburg, Rotterdam and Antwerp in the second quarter. This caused shipping issues for traders in China and Europe alike, said the China Chamber of International Commerce.

As one of the world's largest IoT expositions, this year's expo is expected to attract hundreds of world-leading enterprises, universities and associations, including the International Telecommunication Union, Microsoft and Huawei Technologies Co, said Li Yutao, an official at the Industry and Information Technology Department of Jiangsu.

As people's livelihoods improve, an increasing number of families can afford home services, providing a new driver for China's economic growth and employment, the academy's report said. The number of workers in the sector is expected to hit 50 million in 2025, it said.

As of April 16, Chinese procuratorates at all levels had prosecuted 166 people for producing and selling counterfeit or inferior products related to the outbreak and 21 people for jacking up prices of goods, according to data from the Supreme People's Procuratorate, the top procuratorate.

As of this year, more than 5 million households in rural areas of Hebei have made the substitution and started using clean energy for heating, the provincial government said.