This is the ICIS pricing methodology for expandable polystyrene (EPS). ICIS quotes EPS prices in Europe, Asia-Pacific, China and North America.

ICIS continuously develops, reviews and revises its methodologies in consultation with industry participants. Previous versions of this methodology can be found under Archived Documents. For a copy of an archived methodology document, please email

To find out more, please see Expandable Polystyrene Methodology – 30 April 2021