The originally for 2022 planned ICOP (The 16th International Congress of Protistology-Joint Meeting of ICOP/ISOP/ISEP) will be held at Sungkyunkwan University in Seoul, Korea, on 19–24 June 2025. This meeting is co-sponsored by the International Society of Protistologists (ISOP) and the International Society for Evolutionary Protistologists (ISEP) and will be organized by the Korean Society of Protistologists.