Thursday, November 2, 2023 Thursday, November 2, 2023 A recording of the webcast and the slide presentation will be available at avient.com/investors/events-presentations immediately following the conference call and will be accessible for one year.

UV stabilizers help protect polymers from the negative effects of sunlight and preserve aesthetic and mechnical properties. Our Cesa™ additive solutions include UV stabilizers, UV stabilizer/color combination products, and UV stabilizer/flame retardant/color combination products when flame retardancy is needed. UV STABILIZER/COLOR COMBINATIONS • Combines color and UV stabilization for use in PP and PA • Ingredients screened with accelerated weather testing* • Excellent weather resistance properties (against chalking, embrittlement) • Long-term colorfastness and light stability UV STABILIZER/FLAME RETARDANT/ COLOR COMBINATIONS • Combines low halogen flame retardants, UV stabilizers and color for use in PP and PA • Ingredients screened with accelerated weather testing* • Excellent weather resistance properties (against chalking, embrittlement) • Compliant with local fire standards (e.g.: AFNOR M 2 in France, DIN 4102 B 2–B 1 in Germany, UNI 8457–9174 C 1 in Italy, BKZ 5.2 in Switzerland, BS 5852.1990 CRIB 3–5 in UK)** • Standard portfolio available for PP injection molded applications APPLICATION BULLETIN * Laboratory weathering testing may not be determinative of all conditions of use; the end user must determine suitability of a product for its intended use ** Contact us for more information on regulatory compliance Copyright © 2022, Avient Corporation.

The most advanced LSS training is for Black Belt level project leaders. However, no one company or country can solve the plastics waste problem. For every submission received, we pledged to donate to One Tree Planted.

PR 48:2 PYRAZOLONE C.I. PW 6 Opaque CARBON BLACK Medium Jet C.I. PBk 7 Opaque IRON OXIDE BLACK C.I.

Products like bottled water, 2-liter soft drinks, salad dressing, mouthwash, liquid hand soap, and window cleaner are often packaged using PET or rPET. Most Recycled Plastic One major reason? Similar to the ones that correct yellowing, there are special additives that “scavenge” or otherwise reduce the levels of acetaldehyde.

Further- more, the parties agree that Seller’s performance un- der these Terms shall not be an acceptance of any of Buyer’s terms and conditions. 2. If a present or future law, governmental decree, or- der, regulation, or ruling under any existing or future legislation prevents Seller from increasing or revis- ing the price as provided herein, or nullifies or re- duces any price or price increase hereunder, upon written notice from one to the other, Seller and Buyer will attempt to identify mutually agreeable changes to conform this contract with such law, de- cree, order, regulation, or ruling. Køber anerkender og erklærer, at vedkommende er bekendt med og vil overholde alle gældende love og bestemmelser vedrørende handel, eksport eller re- eksport af produkter, tjenesteydelser, data eller teknologi ("Varer"), herunder EU's fælles regler om eksportkontrol (Europa-Parlamentets og Rådets forordning (EU) 2021/821 af 20. maj 2021 om en EU- ordning for kontrol med udførsel, mæglervirksomhed, teknisk bistand, gennemrejse og overførsel af produkter med dobbelt anvendelse, med senere ændringer), implementeret i dansk lovgivning gennem Lov om eksportkontrol (LBK nr. 635 af 9. juni 2011) med tilhørende bekendtgørelser, herunder Eksportforordningen (BEK nr. 712 af 5. juli 2019), International Traffic in Arms Regulations (ITAR), Export Administration Regulations (EAR) og reglerne om handelssanktioner, der administreres af det amerikanske finansministeriums kontor for kontrol med udenlandske aktiver (”Love om Handelskontrol").

EXTRUDER Screw 1" to 6" deep flighted metering screw 3:1 compression ratio Tooling Tubing type – zero land (for smaller sizes) Pressure type – for 1" size or larger Die Tubing type – low DDR Pressure type – short land L/D 24:1 or higher Screen Pack 20/40/20 Mesh Cooling Trough 120–150 °F (50–65 °C) recommended Dryer Hot air or desiccant type, 4 hours at 175–185 °F PROCESSING Temperature Wire Preheat None Feed Zones 290–300 °F Transition 320–340 °F Metering 340–350 °F Head/Die 350–365 °F Target Melt 350–365 °F Maximum Melt 390 °F Purge Compound HDPE www.avient.com Copyright © 2020, Avient Corporation.

These include: • Industrial – Conveyor belts (food production and pharmaceutical industries) and controls (joy sticks, machinery handles and knobs, corrugated bellows, tool grips) • Electrical and electronic devices – Seals and gaskets, radars and sensors • ADAS components – Camera systems, navigation systems, vehicle control systems, infotainment systems PRODUCT OVERVIEW STAT-TECH SOLUTIONS KEY TECHNICAL PROPERTIES Material Description Base Resin Color Hardness Range Surface Resistivity (Ω) Key Characteristics ST0100-5003 ESD FD White VN8904 GP0F025721 TPU White 85 ShA 108 to 109 High elongation, static conductive, FDA compliance ST0100-5006 ESD X2 Natural TPU Natural 85 ShA 107 to 109 High elongation, static conductive ST0200-5001 ESD Natural X1 TPE Natural 40 ShD 107 to 109 High elongation, permanent anti-static, static conductive SST0200-5004 ESD Black TPE Black 40 ShA 103 to 105 Electrically conductive, static dissipative, lower hardness ST0200-5002 EC ES Black TPE Black 60 ShA 100 to 102 Electrically conductive, high elongation ST0200-5009 EC Black TPE Black 60 ShA 100 to 102 Electrically conductive, high elongation Property Unit Standard Test Methods ST0100-5003 ESD FD White VN8904 GP0F02571 ST0100- 5006 ESD X2 Natural 5001 ESD Natural X1 5004 ESD Black 5002 EC ES Black 5009 EC Black Base Resin TPU TPU TPE TPE TPE TPE Physical Properties Hardness Shore ISO 48-4 85A 85A 50D 40A 60 A 60A Density ISO 1183 1.19 1.15 1 1.01 0.965 1.21 Mechanical Properties Tensile Strength (Break) Mpa DIN 53404 10 15 15 4 5.7 2.5 Elongation, Break % DIN 53504 600 650 500 300 400 250 Electrical Properties Surface Resistivity Ω IEC 60093 108 to 109 107 to 109 107 to 109 103 to 105 100 to 102 100 to 102 Volume Resistivity Ω.cm IEC 60093 108 to 109 107 to 109 107 to 109 103 to 105 100 to 102 100 to 102 Color White Natural Natural Black Black Black Copyright © 2023, Avient Corporation.

Wednesday, November 2, 2022 Wednesday, November 2, 2022 A recording of the webcast and the slide presentation will be available at avient.com/investors/events-presentations immediately following the conference call and will be accessible for one year.

AVIENT CORPORATION S E C O N D Q U A R T E R 2 0 2 3 R E S U L T S (NYSE: AVNT) J U LY 2 7 , 2 0 2 3 DISCLAIMER Forward-Looking Statements Certain statements contained in or incorporated by reference into this presentation constitute “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. GUIDANCE 8 15.4% 15.9% Adjusted EBITDA Margin % Better-than-expected margins driven by: • Favorable mix - strong demand for composite applications • Raw material deflation Q2 EBITDA BRIDGE 9 ($ millions) CAI: Price / Mix 7) Deflation 11) SEM: Price / Mix 2) Deflation 6) Net Price Benefit 26) Wage and Energy Inflation (10) Cost Reductions 13) FX (2) Q2 2023 Actual $131) Adjusted EBITDA Q2 2022 Pro Forma $ 172) Demand (68) • Demand conditions vs. expectations: LATAM • Net price benefit remains greater than wage and energy inflation • Clariant synergies and reduced administrative costs Q2 2023 SEQUENTIAL SALES BY REGION Q 2 2 0 2 3 v s . Q 1 2 0 2 3 -8% +6% -1% Flat 10 Total Avient -2.6% 2023 G U IDA N CE $128 $525 $0.56 $2.40 2023 GUIDANCE 12 $800 $3,280 Sales Adjusted EBITDA Adjusted EPS (in millions) (in millions) 13 • Focused on working capital management, restructuring actions to streamline operations • IT investment to further integrate acquired businesses and capture operational efficiencies • Preserve Free Cash Flow to maintain net leverage CASH FLOW / LEVERAGE ($ millions) 2023E Cash Flow from Operating Activities 320$ Less: CapEx (140) Free Cash Flow 180$ Adjusted EBITDA 525$ Net Debt / Adjusted EBITDA 3.0x SUSTAINABILITY AS A GROWTH DRIVER 14 LONG-TERM REVENUE GROWTH DRIVERS Revenue From Sustainable Solutions* 2016-2022 $340M $405M $455M $550M $790M $915M 2016 2017 2018 2019 2020PF** 2021 2022PF*** $1,175M *Avient Sustainable Solutions definitions aligned with FTC 2012 Guide for the Use of Environmental Marketing Claims (“Green Guides”) **2020 is Pro Forma to include full year of the Clariant Color business ***2022 is Pro Forma for the acquisition of Avient Protective Materials and the divestiture of Distribution 60%+ Key Growth Drivers Sustainable Solutions Composites, Healthcare, Asia / LATAM Overlap Other (GDP Growth) Total Company Revenue SUSTAINABILITY REPORT 2022 • Provides progress on 2030 goals • Reaffirms commitment to U.N.