（as of October 3, 2023）
Research Association for Feedstock Recycling of Plastics (FSRJ), Japan
Plastic Waste Management Institute (PWMI), Japan
Vinyl Environmental Council (VEC), Japan
The Society of Polymer Science, Japan
The Chemical Society of Japan
DOWA HOLDINGS Co., Ltd.
Frontier Laboratories Ltd.
SanEikougyou Co. Ltd.
Toray Research Center, Inc.
Because of some large events will be held in Sendai during the period of our symposium, please book your accommodation early as possible.