Continue fostering our Great Place to Work® culture Strategic ObjectivesStrategic Objectives Long Term Growth Rates Growth DriversGrowth Drivers $340 $455 $790 $1,135 $51 $84 $212 $645 $108 $113 $231 $230 $265 $358 $726 $725 8-12% 8-10% 8-10% 5% Sustainable Solutions Composites Healthcare Asia/Emerging Regions Profitable GrowthProfitable Growth Great Place to WorkGreat Place to Work 5.4% 10.9% 16.0% 2006 2014 2023 EBITDA Margins $0.14 $1.93 $2.36 2006 2014 2023 TOP-TIER SUSTAINABILITY PERFORMANCE AND RECOGNITION Industry Sustainability Standards ESG Ratings Performance 1 87th 94th percentile 5 Avient CDP Score: A- M AY 7 , 2024 W EB CAS T P RE SE N TATI O N 7 REGIONAL DEMAND TRENDS-TOTAL COMPANY Q 1 S A L E S V S P Y ( E X C L U D I N G F X ) 7 +2% -6% Flat +2% Avient ex. Q1 2023 (TOTAL COMPANY) $846 $829 $134 $143 17.3% (in millions) $0.63 $0.76 (in millions) + 7% + 21% Sales Adjusted EBITDA Adjusted EPS 9 - 2% 15.8% +150 bps Q1 2024 SEGMENT PERFORMANCE (COLOR, ADDITIVES & INKS) $537 $515 $91 $97 18.8% (in millions) (in millions) + 7% 10 - 4% 17.0% +180 bps • Year over year demand continues to improve for the segment but slowly due to continued weakness in Europe • Raw material deflation & cost reduction actions primary drivers of adjusted EBITDA growth and margin expansion of +180 bps vs Q1 2023 Q1 2024 SEGMENT PERFORMANCE (SPECIALTY ENGINEERED MATERIALS) $310 $314 $64 $73 23.2% (in millions) (in millions) + 14% 11 + 1% 20.8% +240 bps • Sales growth in defense end market offset by weaker demand in telecommunications end market • Raw material deflation and favorable mix impact from defense sales primary drivers of adjusted EBITDA growth and margin expansion of +240 bps vs Q1 2023 Q1 EBITDA BRIDGE (TOTAL COMPANY) 12 $ millions CAI: Price / Mix (1) Deflation 16 SEM: Price / Mix 4 Deflation 7 Net Price Benefit 26 Wage/Other Inflation (9) FX (2) Q1 2024 $143 Adjusted EBITDA Q1 2023 $ 134 Demand (6) • Positive net price benefit: o Favorable raw material deflation in both segments • Wage and other inflation more than offset cost reductions/synergies 2024 G U IDA N CE FY 2024 GUIDANCE Original Revised Adjusted EBITDA $505 to $535 million $510 to $535 million Adjusted EPS $2.40 to $2.65 $2.50 to $2.65 Interest Expense $105 to $110 million $105 million Adjusted Effective Tax Rate 23% to 25% 23% to 25% Capital Expenditures ~$140 million ~$140 million 14 Q2 2024: Adjusted EPS of $0.71 CE O “TO P O F M IN D ” FO CU S ARE A S AREAS OF FOCUS 16 +7% Drive Profitable Organic Top-Line Growth with Margin Expansion Amplify Innovation Build Leadership & Talent Pipeline AP P EN D IX 19 Performance Additives 15% Pigments TiO2 Dyestuffs Polyethylene 10%Nylon Polypropylene Styrenic Block Copolymer Other Raw Materials 38% ~40% hydrocarbon based (Grey shaded materials are hydrocarbon based, includes portion of “Other Raw Materials”) Non-hydrocarbon based materials RAW MATERIAL BASKET SEGMENT DATA U.S. & Canada 41% 2023 SEGMENT, END MARKET AND GEOGRAPHY GEOGRAPHY REVENUESEGMENT FINANCIALS 19% 23%Industrial Building and END MARKET REVENUE $2,007M $358M $1,138M $224M Sales EBITDA Specialty Engineered Materials Color Additives and Inks $502M$3,143M (1) 21 (1) Total company sales and adjusted EBITDA of $3,143M and $502M, respectively, include intercompany sales eliminations and corporate costs 2023 REVENUE | $2 .0 B ILL ION 34% 37% 21% END MARKET REGION 22 34% 21% 15% Building & 1% Energy COLOR, ADDITIVES & INKS 2023 REVENUE | $1 .1 B ILL ION 52% 35% 23 6%Industrial 12% 10% Defense Building & END MARKET REGION SPECIALTY ENGINEERED MATERIALS 32% 26% Building & 6% 2% Defense 1% (18% of sales) 2023 AVIENT REGIONAL SALES 25% Building & (36% of sales)Transportation 22% Building & 12% 6% US & Canada (41% of sales) 59% 22% Building & LATAM (5% of sales) 24 BY END MARKET Reconciliation of Non-GAAP Financial Measures (Unaudited) (Dollars in millions, except for per share data) Senior management uses comparisons of adjusted net income from continuing operations attributable to Avient shareholders and diluted adjusted earnings per share (EPS) from continuing operations attributable to Avient shareholders, excluding special items, to assess performance and facilitate comparability of results.

Nude tones, inky blue, henna and shiny green reflect the human aspect of this journey.  Shiny, transparent, saturated hues are disrupted by a deep opaque tone, while a highly de-saturated lime provides balance to this complex palette. 

For applications requiring color or toning, SmartHeat RHC is also available as SmartHeat Tint, a range of recycle-friendly colors for preforms and bottles or SmartHeat Tone, toners suitable for use in rPET.

Mineral and botanical pigments can be mixed together to adjust color tones, with plant-based pigments enabling vivid color and mineral pigments helping achieve calm and earthy tones.

SMARTHEAT TONE Toned

ECCOH™ INSULATION GRADES APPLICATIONS ECCOH GRADES MFR (150C/ 21.6kg) TS (MPa) EB (%) LOI (%O2) COMMENTS Data Insulation 5918 15.7 14.5 210 35 Excellent processability with high mechanical Data Insulation 6200 D 11.0 14 350 30 Low thickness and high speed processing.

Das geistige Eigentum von Avient ist zu respektieren (d. h.

Parameters NM5600-8002 RS NM5600-8004 RS Drying Temperature 100–120°C 100–130°C Drying Time 4–6 hours 4–6 hours Barrel Temperature °C °C Rear Zone 250–270 260–270 Central Zone 260–280 270–290 Front Zone 270–295 290–305 Nozzle 290–300 290–300 Mold Temperature 80–100 80–100 Screw Speed Moderate Moderate Back Pressure 3–10bar 3–10bar Cushion stroke 5–10% of plasticizing stroke 5–10% plasticizing of stroke Injection Speed Medium Medium Injection Pressure Medium–high Medium–high Holding Pressure 30–50% of injection pressure 20–40% of injection pressure Screw Type General purpose General purpose Screw L/D 20:1 20:1 Screw Compression Ratio 2.5:1 2.5:1 Non-return Check Valve Free flow check ring Free flow check ring Nozzle Type Reverse taper Reverse taper Barrel Capacity 30–80% of barrel should be used Processing Guide 2 Start Up & Shut Down Recommendations Purge Compound 1. 2–3 melt flow PP or purging compound.

ECCOH™ INSULATION GRADES APPLICATIONS ECCOH GRADES MFR (150C/ 21.6kg) TS (MPa) EB (%) LOI (%O2) COMMENTS Data Insulation 5918 15.7 14.5 210 35 Excellent processability with high mechanical Data Insulation 6200 D 11.0 14 350 30 Low thickness and high speed processing.

TMA strain versus temperature measurement -2000 -1500 -1000 -500 0 D im en si on C ha ng e (µ m ) 20 40 60 80 100 120 140 160 180 200 Temperature (°C) ––––––– 224-020A-10N-HDT.003 – – – – 224-001A-HDT Universal V2.6D TA Instruments 3038 / ANTEC 2003 Figure 3.