Tan secured 95.47 out of 100 points, the fourth highest score at the competition, with the maximum score of 40 points in the practical exam.
This is the first time a Vietnamese contestant has recorded the maximum score for the practical exam of an International Chemistry Olympiad.
Meanwhile, silvers went to Nguyen Dinh Hoang from the Nguyen Tat Thanh High School for the Gifted in Yen Bai province and Pham Thanh Lam from the Le Hong Phong High School for the Gifted in Nam Dinh province.
The education ministry said the achievements show Vietnamese students’ improvement in practicing, which was originally not their strength compared to peers from developed countries.
The 51st International Chemistry Olympiad, held in France in late July, attracted more than 300 students from 80 countries and territories. Vietnam finished fifth, following China, the Republic of Korea, Russia and the US.