Dear All, Thank you to the authors participants who have already submitted their abstracts and workshop proposals. The deadline for submission of abstracts and workshop proposals on 30 June, 2021. Preparation for the conference is progressing well despite the pandemic situation. The organizers would like to confirm that the conference will be held online. We hope and pray that we can also have a limited onsite attendance at Naresuan University, Thailand. However, we need to wait and watch if the situation improves so as to permit onsite participation. Registration for the conference can be from the URL below [1]. At this instance we suggest that you complete your registration for online participation before 15 July, 2021 (early registration deadline). You can change it for onsite participation at a later date when travel possibilities will be more clear. Look forward to your active participation to make GIS-IDEAS 2021 a great success. Take care and stay safe! [1] https://gisws.media.osaka-cu.ac.jp/gisideas20/submit.php Sincerely, Conference Secretariat Attn: Secretary GIS-IDEAS 2021 Email: gidea-office@gisws.media.osaka-cu.ac.jp <https://drive.google.com/u/3/settings/storage?hl=en&utm_medium=web&utm_source=gmail&utm_campaign=storage_meter&utm_content=storage_normal> -- Sincerely, Conference Secretariat Attn: Secretary GIS-IDEAS 2021 Email: gidea-office@gisws.media.osaka-cu.ac.jp