This is the ICIS pricing methodology for phthalic anhydride. ICIS quotes phthalic anhydride prices in Europe, Asia-Pacific and the US.

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 Phthalic Anhydride Methodology – 13 June 2023