XXV Scientific and Technical Symposium CHEMISTRY 2019. The Honorary Host of the Symposium is PKN ORLEN SA.

Płock hosted over 420 representatives of the most important chemical, petrochemical and refining plants as well as companies, institutions and research centers related to the industry. There were two debates, five thematic panels, a special lecture and 30 presentations. 50 companies presented their offers at the stands. Rafał Browarski and Rafał Szubert participated in the Symposium.