At the ceremony in Hanoi. Photo: hanoimoi.com.vn

At a ceremony in Hanoi on Friday, Hua Minh Tuan from Ho Chi Minh City won the diamond prize for his initiative to clean up rivers.

“I am surprised and honored to receive the award. I am grateful to my colleagues for their support in the design to this machine to minimize work loads for workers. This will facilitate clean-up work and save up time and energy,” said Tuan.