Contacts avec les concurrents. subject= http://avient.ethicspoint.com http://www.Avient.com/company/policies-and-governance/ethics-hotline http://www.Avient.com/company/policies-and-governance/ethics-hotline 1. Évitez les contacts inutiles avec les concurrents. 2.

Lysol® is a trademark of Reckitt Benckiser LLC; Formula 409® is a trademark of The Clorox Company; Clorox® is a trademark of The Clorox Company. 5© 2021 Avient Corporation, 33587 Walker Road, Avon Lake, Ohio USA 44012 For the materials tested, a variety of flame-retardant (FR) polycarbonate (PC) alloys, including blends with acrylonitrile-butadiene-styrene (ABS), polyethylene terephthalate (PET), and polybutylene terephthalate (PBT), were benchmarked against FR copolyester and the chemically resistant (CR) aliphatic polyketone (PK) blends of the Trilliant HC8900 and Edgetek ET8900 series. MATERIAL BRIEF DESCRIPTION FR PC/ABS Flame retardant, chemical resistance, high ESCR FR PC/PET Flame retardant, impact modified, chemical resistant FR PC/PBT Skin-contact biocompatible, flame retardant, high chemical resistance FR Copolyester Flame retardant, chemical resistant, may incorporate agency-rated materials to meet USP Class VI or ISO 10993 requirements Trilliant™ HC8910 Unfilled PK blend, BPA-free, high chemical resistance, may incorporate agency-rated materials to meet USP Class VI or ISO 10993 requirements Trilliant™ HC8920 FR Non-halogenated flame retardant PK blend, BPA-free, high chemical resistance, may incorporate agency rated materials to meet USP Class VI or ISO 10993 requirements Edgetek™ ET8900 CR Unfilled PK blend, high chemical resistance Edgetek™ ET8900 HI CR High impact PK blend, high chemical resistance Edgetek™ ET8920 FR CR Non-halogenated flame retardant PK blend, high chemical resistance Table 2.

The company will conduct a conference call at Investor Relations Contact: Joe Di Salvo, Vice President, Treasurer and Investor Relations, PolyOne Corporation, +1 440-930-1921, giuseppe.disalvo@avient.com; Media Contact: Kyle G. Investor Contacts

The company expects approximately Investor Relations Contact: Joe Di Salvo, Vice President, Treasurer and Investor Relations, PolyOne Corporation, +1 440-930-1921, giuseppe.disalvo@avient.com; Media Contact: Kyle G. Investor Contacts

Media contact Nicole DeChant Avient Corporation nicole.dechant@avient.com Media Relations Contacts Company Officers

Media contact Michelle Maniscalco Senior Manager, Marketing Communications Avient Corporation michelle.maniscalco@avient.com   Media Relations Contacts Company Officers

See our extensive library of resources about our growing company. Color & Additives Animal Free & Food Contact Approved Film Additives Discover our animal free additive solutions for flexible food packaging with extensive food contact approval

Mumbai, India (15 manufacturing plants) Pamplona, Spain (1) 17. SHAREHOLDER INQUIRIES If you have any questions concerning your account as a shareholder, name or address changes, inquiries regarding stock certificates, or if you need tax information regarding your account, please contact our transfer agent: Computershare Trust Company, N.A. FINANCIAL INFORMATION Security analysts and representatives of financial institutions are invited to contact: Cynthia D.

Hanna Company (Hanna). Pune, India Missouri (3) 19. FINANCIAL INFORMATION Security analysts and representatives of financial institutions are invited to contact: Eric R.

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