Symposium 1 (17:10-19:10 JST, 18 November 2021)
Bringing the micro-world to everyday life using mobile microscopy
Organizers: Masashi M. Hayakawa and Kuniaki Nagayama (Life is small. Projects, Japan)
Speakers: Kuniaki Nagayama (Japan), Isao Tsuduki (Japan) and Kim Sothary (Cambodia), Kazumasa Sato (Japan), and Yoko Takeshita (Japan)

Symposium 2 (10:20-12:20 JST, 19 November 2021)
Molecular and cellular biology of ciliated protozoa
Organizers: Shan Gao (Ocean University of China, China) and De-Hua Lai (Sun Yat-Sen University, China)
Speakers : K. Kataoka (Japan), F. Li (Singapore), X. Zhao (China), S. Long (China), M. Tian (China), and N. Gupta (Germany)

Symposium 3 (16:30-18:30 JST, 19 November 2021)
Biology of heterotrophic and parasitic protists
Organizers: Denis Tikhonenkov (Russian Academy of Science, Russia) and Kevin Wakeman (Hokkaido University, Japan)
Speakers: D. Tikhonenkov (Russia), E. Yazaki (Japan), R. Kamikawa (Japan), K. Wakeman (Japan) and F. Husnik (Japan)

Symposium 4 (15:30-17:30 JST, 20 November 2021)
Protists as model organisms to face environmental problems
Organizers: Cristina Miceli (University of Camerino , Italy) and Wei Miao (Chinese Academy of Sciences, China)
Speakers: Thorsten Stoeck (Germany), Jun Yang (China), Sandra Pucciarelli (Italy), and Jiawei Tu (China)

Symposium 5 (17:40-19:40 JST, 20 November 2021)
Molecular basis for interactions between protists and other organisms
Organizers: Toshinobu Suzaki (Kobe University, Japan) and Federico Buonanno (University of Macerata, Italy)
F. Buonanno (Italy), M. Hamada (Japan), H.S. Yoon (Korea) and H. Iriko (Japan)

Symposium 6 (10:00-12:00 JST, 21 November 2021)
Ecology and evolution of dinoflagellates in the genomics era
Organizers: Hwan Su Yoon (Sungkyunkwan University, Korea) and Cheong Xin Chan (University of Queensland, Australia)
A.S. Lim (Korea), S.H. Baek (Korea), S. Kim (Korea), T. Nakayama (Japan), and C.X. Chan (Australia)