Important Dates
| Call for submission of symposia proposals | 1 October 2019 |
| Deadline for submission of symposia proposals (including all individual abstracts within symposia) | 15 June 2020 |
| Call for stand-alone abstracts opens | 12 July 2020 |
| Deadline for proposals of visits and excursions | 2 November 2020 |
| Deadline for submission of stand-alone abstract proposals | 10 January 2021 |
| Early registration opens | 1 February 2021 |
| Decisions on accepted symposia announced | 20 February 2021 |
| Decisions on stand-alone abstracts announced | 20 February 2021 |
| Deadline for submission of revised abstracts within symposia | 28 February 2021 |
| Program (first version) released online | 1 April 2021 |
| Early registration closes | |
| Final date for registration | 5 July 2021 |
| On-site registration | 6 July 2021 |
| ICHST 2021 | 25–31 July 2021 |