Vietnamese students at the Croatia International Invention Show 2019 (Photo: VNA)

The delegation consisted of students from the Kim Anh High School in Hanoi, the High School for Gifted Students at the Hanoi University of Sciences, and the Ha Long High School for Gifted Students in Quang Ninh province.

The project on making biodegradable wrapping film by students of Kim Anh High School received the special cup for the best project in terms of applicability and also the European invention medal presented by an association of Romanian inventors. The wrapping film is made of cheap and available materials such as green tea, with rice-washing water as the environment for microorganisms to produce the environmentally friendly food wrap. Known as INOVA, the show saw the participation of 31 countries and territories with 500 innovative and highly applicable inventions.