Team China's two contestants, Wang Chunji and Shi Haojia, won the gold medal with full marks, and four other high schoolers also walked away with gold medals, securing Team China's first place.
Qu Zhenhua, deputy head of the Chinese delegation, told Xinhua that the six students performed stable in the competition, which exceeded their expectations.
The IMO is an annual worldwide mathematics competition for pre-collegiate students. Over 600 students from more than 100 countries and regions participated in this year's event in Japan.