Volunteers help deliver documents at the 2019 World Internet of Things Exposition (WIOT) held in Wuxi, East China's Jiangsu province from Sept 7-10. [Photo provided to chinadaily.com.cn]

A total of 750 volunteers are now serving the 2019 World Internet of Things Exposition, providing guidance and assistance to attendees during the event.

Among them, 520 are students from Wuxi Taihu University, and 170 are from the local government. The rest are 30 emergency rescuers, 20 interpreters and 10 photographers.

The tech event is currently being held in Wuxi, East China's Jiangsu province, and will last until Sept 10. The expo consists of a summit and 10 other industry forums. A total of 542 companies from 30 countries and regions, 37 of which are Fortune 500 companies, are attending the expo.