Zwolseweg 1, 2994 LB, Barendrecht, Netherlands - TEL: +31(0)102922689. www.dnv.com/assurance Page 2 of 2 Appendix to Certificate Polyone - Suzhou, China Locations included in the certification are as follows: Site Name Site Address Site Scope PolyOne Management (Shanghai) Co., Ltd.

CNSUZ3-SUH9-20240123104552 QUALITY MANAGEMENT SYSTEM\,, CERTIFICATE Certificate No. 00124Q30506R5S/3200 We hereby certify that Color Matrix Plastic Colorants (Suzhou) Co., Ltd Business Registration Number: 91320505799067336K Registered I Operation Address: 13 Plant, No.855, Zhujiang Road, Suzhou New District, Jiangsu Province, China by reason of its Quality Management System has been awarded this certificate for compliance with the standard ISO 9001:2015 The Quality Management System Applies in the following area: Production Activities of Plastic 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 audit: December 21, 2023 to December 22, 2023 After a surveillance cycle, the certificate is valid only when used together with an Acceptance Notice of Surveillance Audit issued by CQC.

� ENVIRONMENTAL MANAGEMENT,_, ' J� - � Certificate No. 00124E30295R4S/3200 We hereby certify that Color Matrix Plastic Colorants (Suzhou) Co., Ltd Business Registration Number: 91320505799067336K Registered/ Operation Address: 13 Plant, No.855, Zhujiang Road, Suzhou New District, Jiangsu Province, China by reason of its Environmental Management System has been awarded this certificate for compliance with the standard ISO 14001:2015 The Environmental Management System Applies in the following area: Production and Related Management Activities of Plastic Colorant & Additive (UV Blockers, Anti-Aging,Anti-Oxidation) Certified since: June 6, 2012 Valid from: January 17, 2024 Valid until: January 7, 2027 the expiry date of last certification cycle: January 7, 2024 the date ofrecertification audit: December 21, 2023 to December 22, 2023 After a surveillance cycle, the certificate is valid only when used together with an Acceptance Notice of Surveillance Audit issued by CQC.

Avient’s Taoyuan site supports customers in Greater China, Japan, South Korea, and Southeast Asia with sustainable polyester fiber solutions for sportswear and casual wear applications primarily made from recycled PET flakes. About Avient Avient Announces Quarterly Dividend...

About Avient Avient Announces Quarterly Dividend... Avient Board of Directors Appoints Ashish K.

The PCR Color Prediction Service is Avient’s breakthrough digital tool for polyolefins and polyethylene terephthalate (PET) resins, launched in June 2022. About Avient  Avient Announces Quarterly Dividend...

Trilliant™ HC8900 Thermoplastics are chemically resistant polymers that offer improved resistance to harsh chemicals and hospital-grade disinfectants compared to other flame-resistant (FR) polymers such as PC/ABS, PC/PET, and copolyester. Avient Announces Quarterly Dividend... Avient Board of Directors Appoints Ashish K.

These include semi crystalline and amorphous polymers such as polypropylene, high impact polystyrene (HIPS), polycarbonate (PC), polystyrene (PS), acrylonitrile-butadiene-styrene (ABS), polyethylene terephthalate (PET), polybutylene terephthalate (PBT), polymethyl methacrylate (PMMA), styrene acrylonitrile (SAN), polyphylene oxide (PPO), polyoxymethylene (POM) and polyamide (PA). olycarbonate derived from Bisphenol A (PC) - Totally Amorphous P oly(acrylonitrile-co-butadiene-styrene) (ABS – 15%-35%AN,5-30%BD,40-60%ST) – Totally amorphous P C* Acetal Homopolymer – 98% crystalline Acetal Copolymer igure 4.

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Avient’s reinforced composite technologies use carbon, glass and aramid fibers with custom formulated thermoset or thermoplastic resins in continuous forming processes Learn more about Avient's portfolio of colorants for disposable and durable nonwovens Pet Care & Supplies