The 55th International Chemistry Olympiad was held in Zurich (Switzerland) from July 16 to 25, in which the Armenian team won 1 gold and 2 bronze medals. Eastern Armenia was represented by Leonid Asatryan and Yuri Petrosyan, 12th grade students of Quantum College, Tigran Mkhitaryan, 12th grade student of Gyumri Photon College, and Arman Kharatyan, 10th grade student of Vanadzor special school with advanced mathematics and science subjects. Among the participants of the Armenian team, Leonid Asatryan won a gold medal, Tigran Mkhitaryan and Arman Kharatyan won bronze medals, and Yuri Petrosyan received a commendation. The team was led by Andranik Davinyan from RA NAS and Armen Galstyan from YSU. 355 representatives from 90 countries took part in the Olympiad, with a maximum of 4 participants from each country. The Olympiad was held in practical and theoretical stages.