https://www.avient.com/sites/default/files/2024-12/ISO9001_English_Suzhou ColorMatrix.pdf
Colorant & Additive (UV Blockers, Anti-Oxidation, Anti-Aging) Certified since: January
8, 2009 Valid from: January 16, 2024 Valid until: January 4, 2027 the expiry
date of last certification cycle: January 4, 2024 the date of recertification