Our products include specialty engineered materials, performance fibers, advanced composites and color and additive solutions. Sustainability Report | 2024 6Contents | About Avient | Message from the CEO | Sustainability at Avient | Enabling a Sustainable World | Preserving the Planet | Culture of Safety & Sustainability | Governance | Appendix https://www.avient.com/sites/default/files/2025-03/380605_AVIENT_2024AR_full_250325.pdf What We Do Our expanding portfolio of offerings includes colorants, composites, functional additives, engineered materials, and performance fibers. Business Segments Color, Additive & Inks (CAI) 63% Specialty Engineered Materials (SEM) 37% End Markets Packaging 23% Consumer 20% Industrial 15% Defense 7% Healthcare 8% Telecom 3% Building & Construction 10% Energy 4% Transportation 10% Geography United States & Canada 41% Europe, Middle East & Africa 35% Asia 18% Latin America 6% Sustainability Report | 2024 8Contents | About Avient | Message from the CEO | Sustainability at Avient | Enabling a Sustainable World | Preserving the Planet | Culture of Safety & Sustainability | Governance | Appendix Message from Avient’s VP of Sustainability Avient Reaffirms Commitment to U.N.

• CRH plc Former Directorships: • Eaton plc • Southern Steel Bhd • Centurion Industries, Ltd. • Hennessy Capital Investment Corp. Lin also currently serves as a director for two other public companies, and one privately-held precision engineered drug delivery company, which provides her with additional experience she utilizes while serving as a valued member of our Board. Wulfsohn was President and Chief Executive Officer of Carpenter Technology Corporation (“Carpenter”), a manufacturer of stainless steel, titanium and other specialty metals and engineered products, and was a director of Carpenter from 2009 until 2014.

MANAGEMENT_TYPE1: This is to certify that the Quality Management System of: COMPANY_NAME: NEU Specialty Engineered Materials FACILITY1_LINE1: 15 Corporate Drive FACILITY1_LINE2: North Haven, CT 06473 FACILITY1_LINE3: U.S.A.

Composites is a high-growth area where we’ve invested, such as in January when we purchased Fiber-Line, a global leader in customized engineered fibers and composite materials that serves the fiber optic cable, oil & gas, industrial and consumer industries.

Current Directorships: Eaton Former Directorships: Southern Steel Bhd, Centurion Industries Ltd. Nikrant Senior Vice President, President of Specialty Engineered Materials Stephen D. Nikrant, Senior Vice President, President of Global Specialty Engineered Materials(1) Stephen D.

• CRH plc Former Directorships: • Eaton plc • Southern Steel Bhd • Centurion Industries, Ltd. • Hennessy Capital Investment Corp. Lin also currently serves as a director for two other public companies, and one privately-held precision engineered drug delivery company, which provides her with additional experience she utilizes while serving as a valued member of our Board. Wulfsohn was President and Chief Executive Officer of Carpenter Technology Corporation (“Carpenter”), a manufacturer of stainless steel, titanium and other specialty metals and engineered products, and was a director of Carpenter from 2009 until 2014.

An example of TPE parts with large undercuts Gate and Knit Line Locations The product engineer should indicate the areas of the part that are cosmetic and those that are functional and include this information on the drawing.

VI Former Directorships: • Eaton plc • Southern Steel Bhd • Centurion Industries, Ltd. Lin also currently serves as a director for two other public companies, and one privately-held precision engineered drug delivery company, which provides her with additional experience she utilizes while serving as a valued member of our Board. Wulfsohn was President and Chief Executive Officer of Carpenter Technology Corporation (“Carpenter”), a manufacturer of stainless steel, titanium and other specialty metals and engineered products, and was a director of Carpenter from 2009 until 2014.

For example, the Edgetek PKE series consists of specialty engineered polyketone (PK) 59 thermoplastics designed to offer manufacturers a high-performing, cost-competitive, and eco-conscious alternative to traditional nylons (PA66 and PA6). Business division Scope 1 emissions (metric ton CO2e) Row 1 Avient Corporate 4275.031 193 Business division Scope 1 emissions (metric ton CO2e) Row 2 Global Color, Additives and Inks 3326.306 Row 3 Global Specialty Engineered Materials 20944.881 Row 4 Masterbatch 4568.055 [Add row] (7.20.1) Break down your total gross global Scope 2 emissions by business division. Business division Scope 2, location-based (metric tons CO2e) Scope 2, market-based (metric tons CO2e) Row 1 Global Specialty Engineered Materials 77222.88 11881.935 Row 2 Masterbatch 48395.149 39583.063 Row 3 Avient Corporate 5088.903 428.036 Row 4 Global Color, Additives and Inks 28316.537 21083.423 [Add row] (7.22) Break down your gross Scope 1 and Scope 2 emissions between your consolidated accounting group and other entities included in your response.