Additive Division
Main Products
DISPARLON
DISPARLON is a series of functional i that enhance and improve the performance of various products, such as automotive coatings, marine coatings, heavy duty coatings, architectural coatings, printing inks, adhesives and sealing materials, simply by adding a small quantity to those products.
In addition to our efforts to establish environmentally friendly and highly functional technologies and develop new products, we are working on the development of custom-made products according to customer needs. We support the global market with our regular lineup of over 200 products.
Major functions of DISPARLON
- Thixotropic agents (anti-sagging/anti-settling)
- Dispersants (anti-flooding and floating/pigment wetting)
- Surface control agents (defoaming/leveling /anti-cratering/slipping)
- Adhesion promoters, conductive additive, anti-skinning agents
Imported Products
We import and sell specialty chemicals from around the world to meet the increasingly sophisticated and diverse needs of our customers.

King Industries ( U.S.A.)
Laboratory
Soka Laboratory, located in Soka City, Saitama Prefecture, is the core research laboratory of Kusumoto Chemicals. In addition to basic research and development of our own products, primarily in the chemical field, this laboratory provides application services (technical consulting) that help solve users’ technical issues.
To strengthen our development of next-generation, sustainability-conscious products, we plan to build a new laboratory and start operating it in 2026.


Production Base
To increase customer satisfaction and ensure the stable supply of products in compliance with laws and regulations, we have established a production framework composed of three locations in Japan and three overseas locations. In this way, we are striving to strengthen our service framework for the global market.
Plants (Japan)

Koshigaya Plant

Soka Plant

Kashima Plant
Plants (Overseas)

China Plant (Kunshan)

India Plant (Gujarat)

Thai Plant (Chonburi)
CONTACT
For any inquiries about our products or other questions, please use this form to contact us.