Welcome

Dear Colleagues -

On behalf of the organizing committee, it is a great honor for me to extend a cordial invitation to you for the Rare Sugar Congress 2025 (RSC2025) - the 9th International Symposium of International Society of Rare Sugars (ISRS). The RSC 2025 will be held from November 16 to 19, 2025 at the Kagawa International Conference Hall (Takamatsu, Kagawa, JAPAN). Please enjoy the season of leaves turning to autumn colors. We look forward to your visit!

Ken IZUMORI (President of ISRS, Kagawa University)

Topics

Rare Sugar Congress 2025 will be held in Kagawa International Conference Hall (Takamatsu, Kagawa, JAPAN) as the 9th International Symposium of ISRS (International Society of Rare Sugars). Please mark your calendar to secure the schedule for Rare Sugar Congress 2025 now!!

November 20, 2024: The homepage for RSC2025 is open.
April 30, 2025: Registration information is open.
July 1, 2025: Submission/Sponsorship/Access pages are open.
July 1, 2025: Early-bird registration and Abstract submission are open.

September 1, 2025: Regular (Earl-bird) registration is closed.
Late registration is available now.

September 1, 2025: Abstract submission deadline extended: New deadline - September 15

September 16, 2025: [update] Abstract submission is closed

This congress page will be updated regularly.

Sponsorship Opportunities for the RSC2025

The International Society of Rare Sugars (ISRS) is currently seeking sponsors to support the successful organization of our upcoming annual meeting, RSC2025. We warmly invite companies and organizations interested in promoting academic collaboration and innovation to consider sponsoring this event. For detailed information on sponsorship opportunities, please refer to the link below.

Sponsorship Page»

Important Dates

Item	Date	Notes
Abstract acceptance notifications	by September 26, 2025	Notifications are being sent sequentially.
Oral presentation invitations	by September 30, 2025	Issued to selected authors.
Confirmation deadline for oral presentations	September 30, 2025	Invited authors must confirm participation.

Early-bird Registration (Regular Registration)

~~July 1 to August 31, 2025 (JST)~~
*closed*

Late Registration is available now.

*All presenters need to complete registration with payment.

Registraion Page»

Abstract Submission

~~July 1 to September 1, 2025 (JST)~~
~~July 1 to September 15, 2025 (JST)~~
*closed*

Submission Page»

Rare Sugar Congress

The Rare Sugar Congress (RSC) is held as the International Symposium of ISRS approximately every three years for the exchange of information on various aspects of rare sugars, from production to application.

Conference Venue

Kagawa International Conference Hall (Takamatsu, Kagawa, Japan)

Overall Schedule

Sunday, November 16, 2025

Registration

Poster Presentation

Monday, November 17, 2025

Registration

Special Keynote Session

Keynote Lecture

MAHA: Unprecedented Changes to the U.S. FDA – Update and What the Future Holds (Tentative)

Anthony Pavel (Keller and Heckman LLP, USA)

Special Lecture

The Evolving Sweetener Landscape: Global Trends, Scientific Insights, and Regulatory Perspectives on
High-Intensity Sweeteners, Polyols, and Rare Sugars (Tentative)

Carla Saunders (Calorie Control Council, USA)

Lectures

Enabling the growth of Rare Sugars: Korea’s Allulose market experience (Tentative)

Jungsook Han (Samyang Corporation, Republic of Korea)

Investigating the effect of tagatose supplementation on Clostridioides difficile infection in a mouse model (Tentative)

Ed Rogers (Bonumose, Inc., USA)

More speakers TBA

Special Program

Panel Discussion

【Panelists】

Yuma Tani (Chair & Modulator, Matsutani Chemical Industry Co. Ltd., Japan)
Anthony Pavel (Keller and Heckman LLP, USA)
Carla Saunders (Calorie Control Council, USA)
Kevin Miller (Mars Wrigley, USA)
Ed Rogers (Bonumose, Inc., USA)
Jihye Shin (Samyang Corporation, Republic of Korea)

More panelists TBA

Oral Presentations

Reception Banquet

Tuesday, November 18, 2025

Oral Presentations

Wednesday, November 19, 2025

Oral Presentations

Poster Presentations (Session)

Travel Information

Takamatsu is the largest city in Kagawa Prefecture, part of the Shikoku region of Japan. This scenic location is travel destination close to Osaka, Kyoto, and the Kansai area. Autumn in Japan spans from September to November, with foliage changing from mid-October onwards. The end of November is the peak time to enjoy vibrant foliage across the country. Of couse there are many attractive spots to view them in Kagawa area. These links are the official tourism websites by public institutions which covers things to do and travel tips.