The International Symposium on Fluorine Chemistry (ISFC) is an academic conference where researchers present their most recent original results on the chemistry of fluorine and its derivatives. Communications deal with all compounds of fluorine, from hydrogen fluoride to fluoropolymers and other fluorocarbons. Participants to editions from 18th ISFC onwards have been nearly 500, most of them were from academia, researchers from fluorochemical industry being the second largest group.