Stepan Raising Rigid Polyol Prices

November 19, 2021

Dear Valued Customer:

Effective January 1, 2022, or as contracts allow, Stepan will increase the price for STEPANPOL®
and TERATE® Rigid Polyester Polyols used in the Americas by $0.09 per pound. This increase is
necessary due to the continued rapid inflation in costs associated with raw materials, manufacturing,
energy, labor, and transportation.

Due to the magnitude of cost increases in flame retardants, all STEPANPOL® and TERATE®
products containing flame retardant will increase by an additional $.19 per pound for a total of $.28
per pound.

We appreciate your support and value your continued business. Your Stepan sales representative
will be in contact with you to address any questions or concerns.