Executing flawlessly and continue advancing our strategy while prioritizing investments and resources for our growth vectors 1. 2. 3. 4. 5. 6.

Examples include: • Dyneema®, the world’s strongest fiber™, enables unmatched levels of performance and protection for end-use applications, including ballistic personal protection, marine and sustainable infrastructure and outdoor sports • Unique technologies that improve the recyclability of products and enable recycled content to be incorporated, thus advancing a more circular economy • Light-weighting solutions that replace heavier traditional materials like metal, glass and wood, which can improve fuel efficiency in all modes of transportation and reduce carbon footprint • Sustainable infrastructure solutions that increase energy efficiency, renewable energy, natural resource conservation and fiber optic / 5G network accessibility Avient is certified ACC Responsible Care®, a founding member of the Alliance to End Plastic Waste and certified Great Place to Work®.

Additionally, Adjusted EPS excludes the impact of special items and amortization expense associated with intangible assets. 2 O P E N I N G RE MARK S B O B P A T T E R S O N C H A I R M A N , P R E S I D E N T A N D C E O Complementary technologies and customer relationships offer opportunity to advance commercial strategy Dyneema®, the world’s strongest fiber™, to accelerate growth of sustainable, ultralight and high performance applications AVIENT PROTECTIVE MATERIALS FIRST YEAR 4 Composites comprises over half of Specialty Engineered Materials, compared to 9% in 2016 Proven history of success in areas such as outdoor high performance, defense and sustainable solutions Composites 44% 56% 2023E Sales Collaboration & InnovationComposites as a % of SEM People & Culture Talented, passionate, and creative associates drive continued integration success and allow two cultures to come together as one Avient Lightweight Protective Laminates: PROJECTILE PROTECTION Dyneema® Fiber Solutions Cushioning + Fit + Comfort: LONG-TERM WEAR reSound™ Versaflex™ Thermoplastic Elastomers Strength + Durability + Light-Weighting: SOLID MOUNTING BRACKETS Nymax™ Bergamid™ Complēt™ Engineered Materials Durability + Lubricity: HELMET LATCHES Lubri-One™ Internally Lubricated Polymers Color Consistency and Weatherability CUSTOMIZED SPECIFICATIONS Avient Color and Additive Solutions Antennae Performance FAST, RELIABLE CONNECTIONS PREPERM™ Low-Loss Dielectric Thermoplastics AVIENT PROTECTIVE MATERIALS CROSS SELLING OPPORTUNITIES Wired Connections CONSTANT COMMUNICATION Syncure™ Cross-linkable Wire & Cable Formulations5 6 AVIENT PROTECTIVE MATERIALS CROSS SELLING OPPORTUNITIES 6 Q 3 P E RFO RMAN CE 15.4% 16.3% 2022 PF 2023 Results vs.

This advanced additive also enables customers to preserve electrical properties while reducing insulation thickness and raw material consumption through a consistent closed-cell structure.

The request for approval should be submitted two business days in advance of the proposed transaction, if possible.

Instructions on how to vote are found in the section entitled "Advance Voting Methods" in the Proxy Summary. ADVANCE VOTING METHODS Even if you plan to attend and participate in our Annual Meeting, please cast your vote as soon as possible using one of the following advance voting methods: Visit www.proxyvote.com to vote your proxy over the internet until 11:59 p.m. Mink provides us with valuable counsel related to her chemical and advanced materials background.

In closing, I offer my thanks to our customers for their ongoing partnership in innovation and advancing sustainability. BUSINESS Business Overview materials, performance fibers, advanced composites and color and additive systems. Our Business materials, performance fibers, advanced composites, and color and additive systems.

If Seller determines that Buyer’s financial responsibility has become impaired or otherwise unsatisfactory to Seller, Seller at its discretion may require advance cash payments, COD, shorter terms, and/or the posting of satisfactory security by Buyer and may withhold shipments. If (i) Buyer is in default of performance of its obligations towards Seller and fails to provide adequate assurance of Buyer’s performance before the date of scheduled delivery; or (ii) if Seller has reasonable doubts with respect to Buyer’s performance of its obligations and Buyer fails to provide to Seller adequate assurance of Buyer’s performance before the date of scheduled delivery and in any case within thirty (30) days of Seller’s demand for such assurance; or (iii) if Buyer becomes insolvent or unable to pay its debts as they mature, or goes into liquidation or any bankruptcy, insolvency or debt restructuring proceeding shall be instituted by or against Buyer or if a trustee or receiver or administrator is appointed for all or a substantial part of the assets of Buyer or if Buyer makes any assignment for the benefit of its creditors; or (iv) in case of non- compliance of Buyer with any law, statute ordinance, regulation, code or standard (“Laws and Standards”), then Seller may by notice in writing to Buyer, without prejudice to any of its other rights: (a) demand return and take repossession of any delivered Products which have not been paid for and all costs relating to the recovery of the Products shall be for the account of Buyer; and/or (b) suspend its performance or terminate its order confirmation for pending delivery of Products unless Buyer makes such payment for Products on a cash in advance basis or provides adequate assurance of such payment for Products to Seller. Seller may terminate this contract at its sole option upon 14 calendar days’ written notice to the Buyer in advance of the termination date. 26.

Completes specialty acquisitions of Gordon Composites and Polystrand and establishes Advanced Composites platform existing composite technologies under a new platform to be called PolyOne Advanced Composites, which will operate within the Specialty Engineered Materials segment. We present Specialty Platform sales, gross margin, selling and administrative expense, and operating income because management believes that this is useful information to investors by highlighting our collective progress in advancing our specialization strategy.

The comprehensive publication is issued in advance of Registration information to access the Sustainability Day event will be provided in a news release in advance of the event. Unique technologies that improve the recyclability of products and enable recycled content to be incorporated, thus advancing a more circular economy