Rare Sugar Congress 2023

The 8th International Symposium of International Society of Rare Sugars

March 31 – April 2, 2023

Takamatsu, Kagawa, JAPAN  

Online Registration 

The online registration started on November 1, 2022.
The regular registration closed on December 23, 2022.
The late and on-site registration is available now.


Registration Fee

Registration fees for participating in Rare Sugar Congress 2023 are shown in the following table. The fee of regular registration (before Dec. 23, 2022) is less expensive than that of late or on-site registration (after Dec. 24, 2022). The reception desk at the conference for on-site registration is predicted to be very crowded, and we suggest you to finish your registration and the payment in advance. 

Regular Registration

 Before December 23, 2022 (JST)  

        Registration Fee          
 General Participant 20,000 yen 
 Student Participant 10,000 yen


 Late and On-site Registration

 On-site or After December 24, 2022 (JST)  

          Registration Fee       
 General Participant 25,000 yen 
 Student Participant 10,000 yen



Reception Banquet Fee

The ISRS Reception Banquet will be held on March 31 night at RIHGA Hotel Zest Takamatsu Kagawa. Reception Banquet fees are shown in the following table. The banquet style will be changed flexibly due to the COVID-19 pandemic situation during the congress period.

  Reception Banquet Fee 
 General Participant
 Student Participant
12,000 yen 






Keynote, Special Program and Presentation



Reception Banquet



Cancellation policy (Important Notice)


1) Refunds for cancellations after completion of payment will be less a cancellation fee (6%).

2) In the case of a cancellation of the Congress and/or the Reception Banquet by organizer due to unavoidable circumstances, the refund will be also less a refund charge (6%).

3) No refunds will be paid in case of cancellation by the participant on and after the day of the event for any reason.
    For Reception Banquet, whole reservation amount will be charged in case of any cancellation within 3 days prior to the date.


Only participants who agree to all of these policies can click on the link below to proceed to registration. 

There are two types of registration: one for Congress and the other for the Reception Banquet.

Registration is available on an external site (https://app.payvent.net).


Congress Registration Link


Registration »

Registration for Attend to the Congressis available on the link above.




Reception Banquet Registration Link


Reception »

Registration for the Reception Banquet is required separately from the Congress registration. If you wish to attend both, please enter the same e-mail address you used for registration for the Congress.




Sponsored and Supported by 

Kagawa University

Kagawa University IIRSRE

Kagawa Prefecture MICE

TAKAMATSU Convention and Visitors Bureau

Kagawa Industory Support


Contact Information

International Society of Rare Sugars 
Ikenobe 2393, Miki, Kagawa
761-0795, JAPAN
Secretarial Board 
Dr. Kazuya Akimitsu
P: +81(87) 891-3131