Proposition 65)); (vi) be non-infringing as shipped by Supplier, with respect to patents, trademarks, copyrights, trade secrets and all other intellectual property rights of third parties in the country of delivery; and (vii) be in full and strict conformance to any Certificate of Analysis (“COA”) or Certificate of Conformance (“COC”) provided by Supplier in connection with a particular shipment of Goods. In addition, Supplier warrants that all Certificates of Origin for the Goods shall be provided to Avient on a timely basis and shall be accurate and complete. Upon the request of Avient, Supplier shall deliver promptly to Avient certificates of insurance made out by the applicable insurer(s) or their authorized agents for the insurance required under this Section (the “Required Insurance”) and for any material policy amendments thereto.

KEY CHARACTERISTICS • Meets critical need for thermal weldability and kink resistance • Minimizes extractables during processing • Provides excellent tensile strength • Complies with USP VI and ISO 10993-4, -5, -11 certifications • Suitable for gamma and autoclave sterilization methods • Bio-based grade option formulated with nearly 40% Gen 1 biomass content PRODUCT OVERVIEW 1.844.4AVIENT www.avient.com Copyright © 2023, Avient Corporation.

Seller warrants good and clear title in goods subject to the sale (“Product”) and that the Product conforms at the time of shipment to a Certificate of Analysis, a Certificate of Compliance, or a Product Specification Sheet, if any such document exists, and other specifications signed by Seller (“Specifications”). Such tax and duties will be added by Seller to the sales price when Seller has the legal obligation to collect the same and Buyer will pay such taxes and duties unless Buyer provides Seller with a proper tax exemption certificate for each jurisdiction in which taxes otherwise would be due.

This low smoke and fume non-halogen (LSFOH) grade was developed to provide comparable performance to market-leading jacket materials, including PVC, while offering additional benefits to cable manufacturers needing to meet CSA Teck 90 certification.

Green Tariffs) Renewable electricity technology type Renewable electricity mix, please specify 100% renewable Renewable electricity consumed via selected sourcing method in the reporting year (MWh) 390 Tracking instrument used Contract Total attribute instruments retained for consumption by your organization (MWh) 390 Country/area of origin (generation) of the renewable electricity/attribute consumed Argentina Commissioning year of the energy generation facility (e.g. date of first commercial operation or repowering) Vintage of the renewable energy/attribute (i.e. year of generation) 2021 Brand, label, or certification of the renewable electricity purchase No brand, label, or certification Comment Country/area of renewable electricity consumption Belgium Sourcing method Avient CDP Climate Change Questionnaire 2022 Friday, July 29, 2022 96 Unbundled Energy Attribute Certificate (EAC) purchase Renewable electricity technology type Renewable electricity mix, please specify 100% renewable Renewable electricity consumed via selected sourcing method in the reporting year (MWh) 4,111.8 Tracking instrument used I-REC Total attribute instruments retained for consumption by your organization (MWh) 4,111.8 Country/area of origin (generation) of the renewable electricity/attribute consumed Belgium Commissioning year of the energy generation facility (e.g. date of first commercial operation or repowering) Vintage of the renewable energy/attribute (i.e. year of generation) 2021 Brand, label, or certification of the renewable electricity purchase No brand, label, or certification Comment Country/area of renewable electricity consumption Germany Sourcing method Green electricity products from an energy supplier (e.g. Green Tariffs) Renewable electricity technology type Renewable electricity mix, please specify 100% renewable Renewable electricity consumed via selected sourcing method in the reporting year (MWh) 1,991.2 Tracking instrument used Contract Total attribute instruments retained for consumption by your organization (MWh) 1,991.2 Country/area of origin (generation) of the renewable electricity/attribute consumed Sweden Commissioning year of the energy generation facility (e.g. date of first commercial operation or repowering) Vintage of the renewable energy/attribute (i.e. year of generation) 2021 Brand, label, or certification of the renewable electricity purchase No brand, label, or certification Comment Avient CDP Climate Change Questionnaire 2022 Friday, July 29, 2022 99 Country/area of renewable electricity consumption Italy Sourcing method Unbundled Energy Attribute Certificate (EAC) purchase Renewable electricity technology type Renewable electricity mix, please specify 100% renewable Renewable electricity consumed via selected sourcing method in the reporting year (MWh) 21,403.1 Tracking instrument used I-REC Total attribute instruments retained for consumption by your organization (MWh) 21,403.1 Country/area of origin (generation) of the renewable electricity/attribute consumed Italy Commissioning year of the energy generation facility (e.g. date of first commercial operation or repowering) Vintage of the renewable energy/attribute (i.e. year of generation) 2021 Brand, label, or certification of the renewable electricity purchase No brand, label, or certification Comment Country/area of renewable electricity consumption United States of America Sourcing method Unbundled Energy Attribute Certificate (EAC) purchase Renewable electricity technology type Renewable electricity mix, please specify Avient CDP Climate Change Questionnaire 2022 Friday, July 29, 2022 100 100% renewable Renewable electricity consumed via selected sourcing method in the reporting year (MWh) 100,008 Tracking instrument used US-REC Total attribute instruments retained for consumption by your organization (MWh) 100,008 Country/area of origin (generation) of the renewable electricity/attribute consumed United States of America Commissioning year of the energy generation facility (e.g. date of first commercial operation or repowering) Vintage of the renewable energy/attribute (i.e. year of generation) 2021 Brand, label, or certification of the renewable electricity purchase Green-e Comment C8.2j (C8.2j) Provide details of your organization’s renewable electricity generation by country in the reporting year. Country/area of generation Belgium Renewable electricity technology type Solar Facility capacity (MW) Total renewable electricity generated by this facility in the reporting year (MWh) 252.8 Avient CDP Climate Change Questionnaire 2022 Friday, July 29, 2022 101 Renewable electricity directly consumed by your organization from this facility in the reporting year for which certificates were not issued (MWh) 0 Renewable electricity directly consumed by your organization from this facility in the reporting year for which certificates were issued and retired (MWh) 252.8 Renewable electricity sold to the grid in the reporting year (MWh) 0 Certificates issued for the renewable electricity that was sold to the grid (MWh) 0 Certificates issued and retired for self-consumption for the renewable electricity that was sold to the grid (MWh) 0 Type of energy attribute certificate GO Total self-generation counted towards RE100 target (MWh) [Auto-calculated] 252.8 Comment Country/area of generation Belgium Renewable electricity technology type Wind Facility capacity (MW) Total renewable electricity generated by this facility in the reporting year (MWh) 2,399.5 Renewable electricity directly consumed by your organization from this facility in the reporting year for which certificates were not issued (MWh) 0 Avient CDP Climate Change Questionnaire 2022 Friday, July 29, 2022 102 Renewable electricity directly consumed by your organization from this facility in the reporting year for which certificates were issued and retired (MWh) 2,399.5 Renewable electricity sold to the grid in the reporting year (MWh) 0 Certificates issued for the renewable electricity that was sold to the grid (MWh) 0 Certificates issued and retired for self-consumption for the renewable electricity that was sold to the grid (MWh) 0 Type of energy attribute certificate GO Total self-generation counted towards RE100 target (MWh) [Auto-calculated] 2,399.5 Comment C8.2k (C8.2k) Describe how your organization’s renewable electricity sourcing strategy directly or indirectly contributes to bringing new capacity into the grid in the countries/areas in which you operate.

To find more details about our certifications, visit our ISO Certifications Librar y. The certification allows all locations on the certification to maintain a Responsible Care® Certification and ISO:14001 certification. In addition to our global certifications, individual sites have obtained additional certification specific to the products and customers they ser ve.

To find more details about our certifications, visit our ISO Certifications Librar y. The certification allows all locations on the certification to maintain a Responsible Care® Certification and ISO:14001 certification. In addition to our global certifications, individual sites have obtained additional certification specific to the products and customers they ser ve.

Seller warrants good and clear title in goods subject to the sale (“Product”) and that the Product conforms at the time of shipment to a Certificate of Analysis or a Certificate of Compliance, if either such document exists, and other specifications signed by Seller (“Specifications”).

To find more details about our certifications, visit our ISO Certifications Librar y. The certification allows all locations on the certification to maintain a Responsible Care® Certification and ISO:14001 certification. In addition to our global certifications, individual sites have obtained additional certification specific to the products and customers they ser ve.

Khandpur President and CEO 2024 Performance & Highlights Sales: $3.24B +3% GAAP EPS: $1.84 Adjusted EPS(1): $2 .66 +13% Adjusted EBITDA(1): $526M +5% Adjusted EBITDA Margin(1): 16.2% +20bps Dividend Increase: 14 Consecutive Years Great Place to Work® Certification 6 Consecutive Years (1)Reconciliations of these measures to the most directly comparable generally accepted accounting principles (GA AP) financial measures are included in this annual report on a supplemental page that follows the Form 10-K . Annual Repor t | 2024 2 STOCK EXCHANGE LISTING Avient's Common Stock is listed on the New York Stock Exchange, Symbol: AVNT 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: Equiniti Trust Company, LLC 1110 Centre Pointe Curve, Suite 101 Mendota Heights, MN 55120-4100 Phone: 1-855-598-2615 or 1-651-450-4064 www.shareowneronline.com Additional information about Avient, including current and historic copies of Annual Reports on Form 10-K and other reports filed with the Securities and Exchange Commission, is available online at www.avient.com or free of charge from: Investor Relations Avient Corporation 33587 Walker Road Avon Lake, Ohio 44012 Phone: 1-440-930-1000 ANNUAL MEETING The annual meeting of Avient will be held virtually via live webcast at 9:00 a.m.