The delegation of scientists brought along lunar soil collected during China's fifth lunar exploration mission, in late 2020. The soil will be displayed at the Hong Kong Convention and Exhibition Centre from Sunday until early July. Hong Kong scientists also participated in that mission.

Hu expressed appreciation for PolyU's participation in national space missions, especially the work of Yung Kai-leung, a professor and associate head of PolyU's Department of Industrial and Systems Engineering. Despite the difficulties encountered in the Chang'e 5 lunar probe project, Yung persevered and showed strong responsibility during the task, Hu said.