The exhibit will include more than 300 ancient books that are among the most precious selected from the collections of 40 public institutions and 30 individuals nationwide.
The exhibition last Friday was titled Fascinating Guizhou: A Heaven of Myriad Mountains.
The exercise will follow the 18th SCO Summit, scheduled for June 9 and 10 in Qingdao, Shandong province.
The expo kicked off on Aug 1 and will end on Aug 20.
The event's activities will run until the winter solstice in December.
The event, she said, was expected to strengthen ties between the two countries and will further display the country's arts, culture as well as tourism destinations.
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The expanded enrollment will primarily cover professions including preschool education, nursing, domestic services, aged care and modern service industries.
The event will last until June 30. Selected outstanding works will be awarded and published by major media outlets afterwards.
The event will be broadcast on the company's website from Apple Park at 10 am Pacific Daylight Time in California, according to a statement from Apple, without providing further details.
The expo, which has been held twice in Chongqing since 2018, serves as a platform to promote global exchanges of smart technologies and international cooperation of the smart industry.