UV COOL GRAY PP SC ASA PRE-OXFORD GRAY ASA MED OXFORD GRAY

WHITE ABS KUMHO UV V2 METALLIC GRAY PE UV V1 METALLIC GRAY PE UV V2

UV YELLOW ABS V2 UV GOLD PVC NAT. SB YELLOW TINT UV

© 2019, All Right Reserved Avient Corporation, 33587 Walker Road, Avon Lake, Ohio USA 44012 TRANSPORTATION LIGHTING SUPPLIER H E A T S I N K F O R H I G H P O W E R L E D • A material to replace aluminum • High thermal conductivity - 20 W/mK • Electrically conductive • Increase production rate by 50%, as three secondary operations were eliminated • Reduced the weight of each part by 30% • Collaborated with the customer to participate in the SPE Automotive Innovation Awards Therma-Tech™ TT6600-5001 EC Grey KEY REQUIREMENTS WHY AVIENT?

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.

Synergies Initial Estimate ($ Millions) Revised Estimate ($ Millions) Administrative $ 18 $ 20 Sourcing 24 30 Operational 18 25 Total Synergies $ 60 $ 75 CLARIANT INTEGRATION & COST SYNERGIES UPDATE 13 $1.80 $2.12 $2.75 2020E Organic 2020 PF 2020 PF w/ Synergies The cost synergies from the Clariant Masterbatch acquisition will help drive substantial margin expansion. D is t. ) R P M K W R P P G F U L A V Y G C P F M C IF F H X L H U N F O E E M N E C L S C L K R A A S H C E G R A A L B Median: 5%Median: 3% Avient Specialty Formulators Other Chemical/Specialty Companies Free Cash Flow Conversion (1) 2021E (%) Being asset light helps us to generate strong free cash flow that is in line with specialty formulators. Free cash flow conversion calculated as (EBITDA – Capex) / EBITDA Source: Bloomberg market data as of November 9, 2020 Median: 82% Median: 73% HIGH FREE CASH FLOW CONVERSION 83 86 85 85 80 78 58 88 83 81 79 77 76 73 73 72 72 67 64 63 60 6 A v ie n t K W R R P M P P G F U L A V Y G C P F M C IF F U N V R B N R E M N E C L C E H X L F O E A S H G R A H U N K R A S C L A L B Net Debt / 2021E EBITDA (1) We typically operate at 2.5–3.0x net debt to EBITDA.

GUÍA DE SELECCIÓN DE PRODUCTOS SOLUCIONES PARA CABLE & ALAMBRE Materiales de Ingenieria Especializada Formulaciones para aislamiento, revestimiento y cross-web para el mercado de cable y alambre Syncure™ XLPE Formulaciones de Polietileno Reticulable • Curado al ambiente • Alto desempeño a la flama • Resistente al calor, el aceite, a la deformación por stress constante y la abrasión • Propiedades de baja temperatura • Baja inversión de capital • Alta velocidad de extrusión • Libre de DBDPE disponible • Boletinados por UL/CSA Maxxam™ FR Polipropileno con Retardante de Flama • Reemplaza al FEP para aislamiento • Desempeño a la flama • Cumplimiento a UL 444 yellow card • Baja constante dieléctrica • Alta velocidad de extrusión • Capacidad de extrusión para paredes delgadas Maxxam™ SY Polipropileno Espumado • Baja constante dieléctrica • Estructura celular uniforme • Resistencia al calor y la compresión • Facilidad del espumado mediante proceso químico Soluciones LSFOH ECCOH™ Baja Emisión de Humo y Libre de Halógenos • Mejora de la seguridad contra incendios • Baja emisión de humo, toxicidad y libre de halogenos (LSFOH) • Resistencia química ECCOH™ XL Soluciones para Cable Reticulado • Libre de halógenos, baja emisión de humos, baja toxicidad y anticorrosiva • Excelentes propiedades electricas y mecanicas • Facilmente procesable • Temperaturas de operación 90°C • Tecnologia de curado por humedad Synprene™ Elastómeros Termoplásticos Retardantes de Flama • Flexibilidad • Alta desempeño a la flama • Resistencia a baja temperatura • Resistencia química • Permite coloración FireCon™ CPE Polietileno Clorado Retardante de Flama • Resistencia en ambientes extremos • Propiedades de baja temperatura • Alta desempeño a la flama • Alta velocidad de extrusión • Resistencia a la luz del sol y rayos UV CARACTERISTICAS ESPECIFICACIONES ECCOH™ XL 8148 Libre de halógenos, baja emisión de humos, baja toxicidad, anticorrosivo EN50618 Syncure™ S100FH Flama horizontal UL 44 Syncure™ S100FH-XUV Flama horizontal, resistencia UV UL 44 Syncure™ S100FH-UV Flama horizontal, FV-1, resistencia UV UL 44, UL 4703 Syncure™ S100FV VW-1 UL 44 Syncure™ S100FV-UV VW-1, resistencia UV UL 44 Syncure™ S112NA Sin retardante a la flama CSA 22.2 Syncure™ S120NA Sin retardante a la flama NSF 61 Syncure™ S200FH Flama horizontal, libre de DBDPE UL 44 Syncure™ S200FV VW-1, libre de DBDPE UL 44 SISTEMAS PARA AISLAMIENTO DE CABLES DE BAJO VOLTAJE Cables de baja tensión • Desempeño a la flama • Resistencia al calor, aceite y abrasión • Buen desempeño a bajas temperaturas • Baja inversión de capital • Altas velocidades de procesamiento AISLAMIENTO Y CROSS-WEBS PARA CABLES DE CATEGORIA Los sistemas de cables de categoría nos proporcionan • Alternativas de cables FEP • Desempeño a la flama • Baja constante dieléctrica • Altas velocidades de extrusión y desempeño para pared delgada • Resistencia química • Desempeño a bajas temperaturas • Flexibilidad CARACTERISTICAS ESPECIFICACIONES Maxxam™ FR 0521-48 R1 Baja emisión de humo, libre de halógenos UL 444 Maxxam™ FR 0587-21 R3 Halogenado, y desempeño para cables plenum UL 444 Cables para fibra optica • Resistencia a ambientes extremos, químicos y a la exposición a luz del sol • Resistencia a bajas temperaturas (LTB) • Baja emisión de humos y toxicidad • Flexibilidad • Altas velocidades en extrusion CARACTERISTICAS ESPECIFICACIONES ECCOH™ 6649 UV Low DD Baja emisión de humos, Libre de halógenos Cubre las requerimientos de retardacia a la flama requeridos por el cliente Cables Coaxiales • Flexibilidad • Altas velocidades de extrusión • Baja constante dieléctrica • Estructura de celda uniforme • Resistencia al calor y a la deformación CARACTERISTICAS ESPECIFICACIONES Maxxam™ SY 89-22-7 Espumable Cubre las requerimientos de retardacia a la flama requeridos por el cliente SISTEMAS PARA CUBIERTA PARA CABLES DE DATOS Cubiertas para medio y bajo voltaje • Resistencia a ambientes extremos, ambientes químicos y degradación por rayos UV • Resistencia a bajas temperaturas (LTB) • Baja emisión de humos y toxicidad • Flexibilidad • Altas velocidades de extrusión • Fácilmente de colorear CARACTERISTICAS MERCADOS Y APLIACIONES FireCon™ CPE 30-33 RoHS Black Retardante a la flama, flexible Edificación & construcción, industrial, nuclear FireCon™ CPE 37-36 RoHS Black Retardante a la flama, flexible Edificación & construcción, industrial, nuclear FireCon™ CPE 30-20 RoHS Natural Retardante a la flama, flexible Edificación & construcción, industrial, nuclear ECCOH™ 5549 UV Baja emisión de humos, libre de halógenos, retardante a la flama Edificación & construcción, industrial ECCOH™ 6649 UV Low DD Baja emisión de humos, libre de halógenos, retardante a la flama Fibra optica, ductos ECCOH™ 5981 UV Baja emisión de humos, libre de halógenos, retardante a la flama Cables industriales, cables Teck 90 Synprene™ RT5180 Retardante a la flama, resistente a LTB Edificación & construcción, industrial Synprene™ RT5180UV Retardante a la flama, resistente a LTB Edificación & construcción, industrial Synprene™ RT3870M Retardante a la flama, resistente a LTB Edificación & construcción, industrial www.avient.com Copyright © 2023, Avient Corporation.

Three Months Ended December 31, 2024 2023 Reconciliation to Condensed Consolidated Statements of Income $ EPS(1) $ EPS(1) Net income from continuing operations attributable to Avient shareholders $ 48.3 $ 0.52 $ 27.8 $ 0.30 Special items, after-tax (18.0) (0.20) 5.4 0.06 Amortization expense, after-tax 14.8 0.17 15.0 0.16 Adjusted net income / EPS $ 45.1 $ 0.49 $ 48.2 $ 0.52 (1) Per share amounts may not recalculate from figures presented herein due to rounding Year Ended December 31, 2024 2023 Reconciliation to Condensed Consolidated Statements of Income $ EPS(1) $ EPS(1) Net income from continuing operations attributable to Avient shareholders $ 169.5 $ 1.84 $ 75.8 $ 0.83 Special items, after-tax 15.9 0.17 79.3 0.86 Amortization expense, after-tax 59.5 0.65 61.5 0.67 Adjusted net income / EPS $ 244.9 $ 2.66 $ 216.6 $ 2.36 (1) Per share amounts may not recalculate from figures presented herein due to rounding Three Months Ended December 31, Year Ended December 31, Reconciliation to EBITDA and Adjusted EBITDA: 2024 2023 2024 2023 Net income from continuing operations – GAAP $ 48.5 $ 27.6 $ 170.7 $ 76.3 Income tax expense (benefit) 14.8 (7.0) 54.1 11.0 Interest expense 25.5 26.8 105.6 115.3 Depreciation and amortization from continuing operations 45.4 44.2 179.7 188.8 EBITDA from continuing operations $ 134.2 $ 91.6 $ 510.1 $ 391.4 Special items, before tax (23.9) 22.4 20.1 114.6 Interest expense included in special items — (0.1) (2.3) (2.3) Depreciation and amortization included in special items (0.3) — (1.5) (1.9) Adjusted EBITDA $ 110.0 $ 113.9 $ 526.4 $ 501.8 Adjusted EBITDA as a percent of sales 14.7 % 15.8 % 16.2 % 16.0 % 1 Three Months Ended December 31, Year Ended December 31, 2024 2023 2024 2023 Sales: Color, Additives and Inks $ 467.7 $ 459.4 $ 2,046.5 $ 2,007.4 Specialty Engineered Materials 279.7 259.8 1,196.8 1,138.2 Corporate (0.9) (0.2) (2.9) (2.8) Sales $ 746.5 $ 719.0 $ 3,240.4 $ 3,142.8 Gross margin: Color, Additives and Inks $ 152.6 $ 148.3 $ 681.1 $ 631.2 Specialty Engineered Materials 84.2 78.1 374.9 341.8 Corporate 22.7 (17.5) 0.7 (80.5) Gross margin $ 259.5 $ 208.9 $ 1,056.7 $ 892.5 Selling and administrative expense: Color, Additives and Inks $ 92.8 $ 86.5 $ 384.9 $ 371.3 Specialty Engineered Materials 49.6 48.7 207.7 199.3 Corporate 31.5 30.6 134.8 125.1 Selling and administrative expense $ 173.9 $ 165.8 $ 727.4 $ 695.7 Operating income: Color, Additives and Inks $ 59.8 $ 61.8 $ 296.2 $ 259.9 Specialty Engineered Materials 34.6 29.4 167.2 142.5 Corporate (8.8) (48.1) (134.1) (205.6) Operating income $ 85.6 $ 43.1 $ 329.3 $ 196.8 Depreciation and amortization: Color, Additives and Inks $ 21.9 $ 22.2 $ 87.5 $ 98.3 Specialty Engineered Materials 21.0 19.8 82.1 81.5 Corporate 2.5 2.2 10.1 9.0 Depreciation and amortization $ 45.4 $ 44.2 $ 179.7 $ 188.8 Earnings before interest, taxes, depreciation and amortization (EBITDA): Color, Additives and Inks $ 81.7 $ 84.0 $ 383.7 $ 358.2 Specialty Engineered Materials 55.6 49.2 249.3 224.0 Corporate (6.3) (45.9) (124.0) (196.6) Other income, net 3.2 4.3 1.1 5.8 EBITDA from continuing operations $ 134.2 $ 91.6 $ 510.1 $ 391.4 Special items, before tax (23.9) 22.4 20.1 114.6 Interest expense included in special items — (0.1) (2.3) (2.3) Depreciation and amortization included in special items (0.3) — (1.5) (1.9) Adjusted EBITDA $ 110.0 $ 113.9 $ 526.4 $ 501.8 2 Year Ended December 31, Adjusted Free Cash Flow Calculation 2024 2023 Cash provided by operating activities $ 256.8 $ 201.6 Taxes paid on gain on sale of business — 104.1 One-time payout associated with deferred compensation plans 20.8 — Adjusted cash provided by operating activities $ 277.6 $ 305.7 Capital expenditures (121.9) (119.4) Adjusted free cash flow $ 155.7 $ 186.3 Three Months Ended March 31, 2024 Reconciliation to Condensed Consolidated Statements of Income $ EPS(1) Net income from continuing operations attributable to Avient shareholders $ 49.4 $ 0.54 Special items, after-tax 5.5 0.06 Amortization expense, after-tax 14.9 0.16 Adjusted net income / EPS $ 69.8 $ 0.76 (1) Per share amounts may not recalculate from figures presented herein due to rounding 3 AVNT Q4 2024 webcast slides_w_non-GAAP.pdf AVNT Q4 2024 webcast slides_v16.pdf Webcast slides w EPS fix.pdf AVNT Q4 2024 webcast slides_w_non-GAAP IR Deck - AVNT-2024.12.31 2.06.25 12PM.pdf Attachment

Continue fostering our Great Place to Work® culture Strategic ObjectivesStrategic Objectives Long Term Growth Rates Growth DriversGrowth Drivers $340 $455 $790 $1,135 2016 2018 2020 2023 $51 $84 $212 $645 2016 2018 2020 2023 $108 $113 $231 $230 2016 2018 2020 2023 $265 $358 $726 $725 2016 2018 2020 2023 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 Adjusted EPS TOP-TIER SUSTAINABILITY PERFORMANCE AND RECOGNITION Industry Sustainability Standards ESG Ratings Performance 1 2 4 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 US & Canada Latin America EMEA Asia +2% -6% Flat +2% Avient ex.

Continue fostering our Great Place to Work® culture Strategic Objectives Long Term Growth Rates Growth Drivers $340 $455 $790 $1,135 2016 2018 2020 2023 $51 $84 $212 $645 2016 2018 2020 2023 $108 $113 $231 $230 2016 2018 2020 2023 $265 $358 $726 $725 2016 2018 2020 2023 8-12% 8-10% 8-10% 5% Sustainable Solutions Composites Healthcare Asia/Emerging Regions Profitable Growth Great Place to Work 5.4% 10.9% 16.0% 2006 2014 2023 EBITDA Margins $0.14 $1.93 $2.36 2006 2014 2023 Adjusted EPS TOP-TIER SUSTAINABILITY PERFORMANCE AND RECOGNITION Industry Sustainability Standards ESG Ratings Performance 1 2 4 87th 94th percentile 5 Avient CDP Score: A- FE BRUARY 14 , 2024 W E BCAS T P RE S E N TAT I O N DR.