THE SOLUTION Gravi-Tech™ density-modified formulations are unique, high-density materials developed as thermoplastic-based alternatives to lead and other traditional metals. Thanks to the customized Gravi-Tech material, API was able to successfully design and mold a flapper valve that is the only one of its kind on the market—and offers a less expensive solution than traditional brass valves. Kane Whitaker, inventor of the PolyChek valve, said “Avient’s team supported us every step of the way—from material identification, through customization, testing and process optimization.

Versaflex - CPAP tubing film CPAP TUBING C O R R U G A T E D T U B I N G F I L M • Replacement for polyolefins • Good spring-back • Bondable cuffs • Clear & clean look • Minimize humidity and condensation within the tube • No noticeable odor • FDA, ISO 10993 & USP VI compatible • Provided TPE solution to meet market expectations for improved user comfort & aesthetics • Reduced tube noise and improved drape compliance with new material solution versus polyolefins • Offered solution with improved thermal properties to combat humidity Versaflex™ CL2250 KEY REQUIREMENTS WHY AVIENT? AVIENT SOLUTION IMPROVED COMFORT + AESTHETICS LEARN MORE Copyright © 2020, Avient Corporation.

The Avient PAC Committee, comprised of Avient PAC Members, meets, discusses key topics and decides the annual budget. The recovered bottles were donated to the non-profit organization Fios Encantados to turn the PET material into wigs for children with cancer. In addition, they again supported the Birmingham Zoo cleanup efforts, removing three tons of natural vegetation and structural materials from the Komodo exhibit.

Weight Reduction • LFT has lower density vs. metal, but still meets structural performance requirements • Lightweighting helps meet sustainability goals related to lower fuel consumption and extended vehicle range Design Flexibility • Injection molding allows for complex geometries and part consolidation • Advanced modeling and computer-aided engineering (CAE) tools for long fiber composites help validate and optimize part design APPLICATION BULLETIN COMPARING PRODUCTION COST DRIVERS Cast Metal Stamped Metal Long Fiber Composite Material typically used Aluminum Steel Various base resins based on environmental conditions Casting X Stamping X Injection Molding X Machining X Not typically needed as LFT is a one-step process Drilling X Welding X Surface Treatments X X po st -p ro ce ss pr oc es s MATERIAL CHARACTERISTICS Characteristic Long Fiber Composite Aluminum Steel Specific Gravity (g/cc) 1.03–1.71 2.76 7.8–7.9 Specific Strength (Strength-to-Weight ratio) Excellent Good Poor Stiffness Fair Good Excellent Toughness/Fatigue Excellent Fair Fair Creep Good Excellent Excellent Corrosion Resistance Excellent Good Poor Temperature Range Performance Good Excellent Excellent Cycle Time Excellent Good Poor Design Freedom (i.e., complex geometry, part consolidation) Excellent Fair Fair Raw Material Cost Poor Good Fair Total Production Cost Good Fair Fair pr od uc ti on pe rf or m an ce Avient offers a range of customizable long fiber reinforced structural material solutions and design support for your metal-to-plastic conversion projects Processing conditions can cause material properties to shift from the values stated in the information. Avient makes no warranties or guarantees respecting suitability of either Avient’s products or the information for your process or end-use application.

Hammerhead™ FR Flame Retardant Composite Sandwich Panels are an innovative, large-format solution for various structural applications, including modular construction, walls, flooring, garage doors, and industrial doors. Processing conditions can cause material properties to shift from the values stated in the information. Avient makes no warranties or guarantees respecting suitability of either Avient’s products or the information for your process or end-use application.

GLOBAL ELASTIC & RUBBER PRODUCT MANUFACTURER T O U R N I Q U E T B A N D • Hardness 45, shore A • Thickness 0.5mm and Tensile set AVIENT SOLUTION PROCESSABILITY + PERFORMANCE LEARN MORE Copyright © 2020, Avient Corporation.

With its unique formulation, ColorMatrix AAnchor offers improved recyclability, reduced regulatory risk, and enhanced bottle quality, making it an ideal solution for brands looking to incorporate higher levels of recycled material into their packaging. Processing conditions can cause material properties to shift from the values stated in the information. Avient makes no warranties or guarantees respecting suitability of either Avient’s products or the information for your process or end-use application.

Copyright © 2022, Avient Corporation. Processing conditions can cause material properties to shift from the values stated in the information. Avient makes no warranties or guarantees respecting suitability of either Avient’s products or the information for your process or end-use application.

Solutions from across 3. Further, as a result of Avient's strategic shift to an innovator of materials solutions, it has completed several acquisitions and divestitures which have resulted in a significant amount of intangible asset amortization. Slide 23 Slide 24: Avient 2024 sales Slide 25: Color, Additives & Inks Slide 26: Specialty Engineered Materials Slide 27: Avient 2024 regional sales, by end market Slide 28: Raw material basket Slide 29: Reconciliation of Non-GAAP financial measures (UNAUDITED) Slide 30: Reconciliation of Non-GAAP financial measures (UNAUDITED) Slide 31: Reconciliation of Non-GAAP financial measures (UNAUDITED)

Avient’s chief operating decision maker uses these financial measures to monitor and evaluate the ongoing performance of Avient and each business segment and to allocate resources. For the same reasons, Avient is unable to address the probable significance of the unavailable information. 3 AVIENT OVERVIEW OUR VISION: Creating specialized and sustainable materials solutions that transform customer challenges into opportunities, bringing new products to life for a better world 2023 Financial ResultsCompany Overview Revenue By: 9,300 Employees 102 Manufacturing Sites 20,000+ Customers Key Highlights  Premier formulator of specialized and sustainable materials solutions  Asset-light business model, with flexibility to adapt to customer needs  Best-in-class technology and service (140+ PhDs / 2,500+ patents)  History of transformation through successful M&A while consistently returning cash to shareholders  Poised for continued future growth in excess of GDP $3.14B Revenue $2.36 $502M Adjusted EBITDA 16.0% Adjusted EBITDA Margins $186M Adjusted Free Cash Flow Over $1B in share buybacks since 2011 Raised dividend for 13 consecutive years, a 15% CAGR since 2011 U.S. & Canada 64% Specialty Engineered Materials Color Additives and Inks 41% 23% 19% 10% 5% 4% Building & Energy Telecom Geography Segment Industry CREATING A WORLD-CLASS SUSTAINABLE ORGANIZATION 1. 6% annualized long term sales growth leveraging sustainable solutions, composites, healthcare and emerging regions 2. FX -1.5% FX -0.5% Total Avient -2.0% Q 1 2024 R ES U LT S Q1 2024 PERFORMANCE VS.