Microsoft PowerPoint - Investing in Avient - V17 - the MASTER AVIENT CORPORATION (NYSE: AVNT) O C T O B E R 2 0 2 0 DISCLAIMER 2 Forward-Looking Statements In this presentation, statements that are not reported financial results or other historical information are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. INVESTMENT IN COMMERCIAL RESOURCES D R I V E S I N N O VAT I V E P R O D U C T P O R T F O L I O AN D S AL E S G R O W T H TARGET NET LEVERAGE BY 2021 ~$1Bn REPURCHASED OVER LAST 10 YEARS ~$350MM PAID OVER LAST 10 YEARS RETURNING VALUE TO SHAREHOLDERS 12 Free Cash Flow Dividends Share Repurchases Deleveraging Strong track record of cash generation put to work in M&A and return to shareholders while modestly levered 0.16 0.20 0.26 0.34 0.42 0.50 0.58 0.72 0.79 0.81 11 12 13 14 15 16 17 18 19 20 0.1 0.1 0.2 0.5 0.6 0.7 0.8 0.9 0.9 1.0 11 12 13 14 15 16 17 18 19 20 2020PF* 2021E Growing Dividend Cumulative Buybacks Net Leverage $B n $ p r sh ar *2020 estimate and Pro forma for acquisition of the Clariant Masterbatch business Cash Generation 19 160 240 2011 2019 2020E ~$240MM Another unique value creation lever at Avient is synergy capture with our recent acquisition of Clariant Masterbatch. SEGMENT HIGHLIGHTS 37% 22% 14% Building & Electrical & C O L O R , A D D I T I V E S & I N K S 2020 PF REVENUE | $2 .0 BILLION $9 $310 2.0% 15.5% 2020 figures Pro forma estimates for acquisition of the Clariant Masterbatch business 32% 39% Latin America END MARKET REGION EBITDA DOLLAR & MARGIN 24 59% 18% Wire & Cable(1) 25% Electrical & 14% Building & S P E C I A LT Y E N G I N E E R E D M AT E R I A L S 2020E REVENUE | $685 MILLION 0.9% 16.8% END MARKET REGION EBITDA DOLLAR & MARGIN 25 (1) Approximately 50% of Wire and Cable sales are associated with Fiber Optic Cabling 30% 24%Packaging Electrical & Building & 1% 79% Latin America END MARKET REGION EBITDA DOLLAR & MARGIN DI S TR IBU T I ON 2020E REVENUE | $1 .05 B ILL ION $20 $65 2.9% 6.2% K E Y S U P P L I ER S 26 AMERICAS EUROPE ASIA 26% 13% 16% Building & 5% Electrical & 35% 14%Healthcare 17% Building & Electrical & 32% 26% 12% Building & Electrical & 2020 figures Pro forma estimates for acquisition of the Clariant Masterbatch business TOTA L C O M PA N Y R E G I O N A L S A L E S BY END MARKET (58% of sales) (25% of sales) (17% of sales) 27

& Canada 38% 17% Q1 2023 SEGMENT, END MARKET AND GEOGRAPHY GEOGRAPHY REVENUESEGMENT FINANCIALS 23% Building and 6%Telecommunications END MARKET REVENUE (1) Total company sales and adjusted EBITDA of $846M and $134M, respectively, include intercompany sales eliminations and corporate costs $537M $91M $310M $64M Sales EBITDA Specialty Engineered Materials Color Additives and Inks $134M$846M (1) 14 Q1 2023 SALES BY REGION Yo Y C H A N G E ( E X C L . National Defense budget of $842 billion submitted to Congress in Q1 2023 • European NATO members annual defense spend expected to increase by up to 20%  Dyneema® is the world’s strongest fiber™  One of the highest strength to weight ratios of any material on Earth  Direct relationships with industry leading armor manufacturers  Resistant to most chemicals, UV, and moisture to handle any environment Avient Confidential 18 DEFENSE Source: US Department of Defense, defense.gov, NATO18 Source: TRANSPORTATION • Increased EPA regulations requiring improved fuel efficiency, enabled in part by lower-weight vehicles • Automakers preparing for 2/3 of U.S. vehicles to be 100% electric by 2032  Lightweight panels that establish both strength and stiffness resulting in decreased energy usage, lower emissions  Long-lasting Color applications to resist UV exposure, temperature fluctuations and exceed the stylistic requirements of global automakers 19 $130 $530 $0.60 $2.40 2023 GUIDANCE 20 Sales Adjusted EBITDA $845 $3,400 (in millions) (in millions) CASH FLOW / LEVERAGE 21 • Maintaining free cash flow and leverage guidance from February earnings call • IT investment to further integrate acquired businesses and capture operational efficiencies • Restructuring actions to streamline operations and improve profitability, primarily in Europe ($ millions) 2023E Cash Flow from Operating Activities 350$ Less: Run-Rate CapEx (110) CapEx for IT System Upgrade (25) CapEx for Restructuring (15) Total CapEx (150) Free Cash Flow 200$ Adjusted EBITDA 530$ Net Debt / Adjusted EBITDA 2.9x LONG-TERM REVENUE GROWTH DRIVERS Growth Drivers Long-Term Growth Rate Sustainable Solutions 8–12% Healthcare 8–10% Composites 10% Asia / LATAM 5% Other (GDP growth) 2–3% Avient 6.5% 22 Sustainable Solutions 32% Asia / LATAM Composites Other (GDP Growth) 39% • Virtual presentation to be held September 20, 2023 • The company will be conducting an investor-focused presentation around our sustainability solutions portfolio Avient Confidential 23 SUSTAINABILITY INVESTOR DAY 23 $340M $405M $455M $550M $790M $915M 2016 2017 2018 2019 2020PF** 2021 2022PF*** SUSTAINABILITY FOR A BETTER TOMORROW Revenue From Sustainable Solutions* 2016-2022 ($ in millions) Organic Future Growth Revenue Assumptions From Sustainable Solutions: 8 - 12% 24 *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 $1,175M Lightweighting Eco-Conscious Recycle Solutions VOC Reduction Sustainable Infrastructure Human Health & Safety Reduced Energy Use Bio-polymers SUSTAINABILITY NEEDS BY MARKET B&C • Eco-Conscious • Carbon footprint • Resource conservation • Carbon footprint • Bio based content • Eco-Conscious Automotive • Light weighting • Recycled Content • VOC reduction • Recycle Solutions • Carbon Footprint Packaging • Recycle Solutions • Food waste reduction Common Theme: CO2 Emission Goals Increasing Single-Use Plastic Regulation 25 INVESTING IN INNOVATION S U S T A I N A B I L I T Y P O R T F O L I O 26 AP P EN D IX 29 RAW MATERIAL 2022 ANNUAL PURCHASES Performance Additives Pigments 12% TiO2 Dyestuffs 2% Polyethylene Nylon Polypropylene Styrenic Block Copolymer Other Raw Materials 33% ~40% hydrocarbon based (Grey shaded materials are hydrocarbon based, includes portion of “Other Raw Materials”) Non-hydrocarbon based materials • Cost inflation decelerating, particularly for hydrocarbon-based raw materials 2022 pro forma results for the acquisition of Avient Protective Materials SEGMENT DATA U.S. & Canada 37% 2022 PRO FORMA SEGMENT, END MARKET AND GEOGRAPHY GEOGRAPHY REVENUESEGMENT FINANCIALS Building and END MARKET REVENUE $2,355M $402M $1,300M $272M Sales EBITDA Specialty Engineered Materials Color Additives and Inks $592M$3,653M (1) 9% 31 (1) Total company sales and adjusted EBITDA of $3,653M and $592M, respectively, include intercompany sales eliminations and corporate costs C O L O R , A D D I T I V E S & I N K S 2022 REVENUE | $2 .4 B ILL ION 34% 38% END MARKET REGION 32 34% 21% Building & 1% Energy 2% S P E C I A LT Y E N G I N E E R E D M AT E R I A L S 2022 PRO FORMA REVENUE | $1 .3 B ILL ION END MARKET 52% 35% REGION 33 19% 8%Industrial 9% Defense Building & 32% 27% 14% Building & 3% 1% Defense 1% (18% of sales) 9% 2022 PROFORMA AVIENT REGIONAL SALES BY END MARKET 27% 14% 17% Building & (37% of sales)Transportation 12% Building & US & Canada (40% of sales) 56% 23% Building & 1% LATAM (5% of sales) 3% 34 PEER COMPARISONS AVIENT IS ASSET LIGHT Capex / Revenue 2023E (%) Avient Specialty Other Specialty / Note: Avient reflects 2023 estimated revenue of $3,400 and estimated run-rate CAPEX of $110M. 36 4 4 4 6 8 9 FREE CASH FLOW CONVERSION Note: Free cash flow conversion calculated as (Adjusted EBITDA – Capex) / Adjusted EBITDA.

Phoenix, Arizona (c) 31. c) There are two manufacturing plants located in Phoenix, Arizona. AVIENT.COM V IE C A U L R 2021

No. 0562.01) Revised 05/31/2022 Page 1 of 1 SCOPE OF ACCREDITATION TO ISO/IEC 17025:2017 AVIENT CORPORATION 733 East Water Street North Baltimore, OH 45872 Claire Holman Phone: (419) 257-1327 MECHANICAL Valid To: October 31, 2023 Certificate Number: 0562.01 In recognition of the successful completion of the A2LA evaluation process, accreditation is granted to this laboratory to perform the following automotive plastics tests: Test Method: Test Name: ASTM D412 Tensile ASTM D523 Specular Gloss ASTM D618 (A) Conditioning of Plastics ASTM D624 (Die C) Tear Strength ASTM D638 Tensile Properties ASTM D792 (A) Density and Specific Gravity by Displacement ASTM D1004 Initial Tear Resistance ASTM D1203 (A) Volatile Loss ASTM D1895 (A) Apparent Density, Bulk Factor, Pourability ASTM D1921 Particle Size (Sieve Analysis) ASTM D2240 Durometer Hardness (Shore A and D) ASTM E1331 Color by Spectrophotometry Using Hemispherical Geometry FMVSS 571.302 Flammability FORD BN-102-01 (A) Low Temperature Flexibility FORD BO-131-03 Interior Odor ISO 3795 Determination of Burning Behavior of Interior Materials SAE J323 (A) Cold Cracking (Mandrel Bend) SAE J1351 Hot Odor for Insulation Materials SAE J1545 Instrumental Color Difference Measurement SAE J1756 Fogging Characteristics of Interior Automotive Materials (Photometric Only) DOC-058151 Angle of Repose 1 Laboratory Developed Method For the tests to which this accreditation applies, please refer to the laboratory’s Mechanical Scope of Accreditation.

Base Resin PC PC/PSU PES PEI PP ABS PEEK PA Barrel Temperatures* °F (°C) Rear Zone 530–560 (277–293) 550–575 (288–302) 660–700 (349–371) 675–725 (357–385) 390–420 (199–216) 425–460 (219–238) 680–730 (360–388) 430–500 (221–260) Center Zone 515–560 (269–288) 540–565 (282–296) 650–690 655–710 (352–377) 380–405 (193–207) 415–450 (213–232) 670–710 (354–377) 420–490 (216–254) Front Zone 510–525 (266–274) 530–555 (277–291) 640–680 (338–360) 655–700 (346–371) 370–395 (188–202) 405–440 (207–227) 410–480 (210–249) Nozzle 520–535 (271–280) 540–565 (282–296) 650–690 665–710 (352–377) 380–400 (193–204) 415–450 (213–232) 660–700 (349–371) 420–490 (216–254) Melt Temperature 525–560 (274–293) 530–580 (277–304) 650–700 (343–371) 660–730 (349–388) 375–395 (191–202) 410–460 (210–238) 650–730 (343–388) 420–500 (216–260) Mold Temperature 175–250 (80–121) 160–220 (71–104) 280–350 (138–177) 275–350 (135–177) 100–135 (38–57) 150–180 (66–82) 300–425 (149–219) 160–230 (71–110) Pack & Hold Pressure 50%–75% of Injection Pressure Injection Velocity in/s 0.5–2.0 Back Pressure psi 50 Screw Speed rpm 40–70 40–70 40–70 40–70 40–70 40–70 40–70 40–70** Drying Parameters °F (°C) 6 hrs @ 250 4 hrs @ 250 4 hrs @ 275 (135) 4 hrs @ 250 3 hrs @ 300 (150) 2 hrs @ 200 (93) 3 hrs @ 275 (135) 4 hrs @ 180 (82) Cushion in 0.125–0.250 Screw Compression Ratio 2.0:1–2.5:1 2.0:1–2.5:1 2.5:1–3.5:1 2.5:1–3.5:1 2.5:1–3.5:1 2.5:1–3.5:1 2.5:1–3.5:1 2.5:1–3.5:1 Nozzle Type General General General General General General General Reverse Taper Clamp Pressure 5–6 Tons/in2 * A reverse temperature profile is important to obtain optimum conductive properties.

Product range • Flame retardants to reduce flammability of fibers and fabrics especially in building and construction applications • Light stabilizers to protect fibers used outdoors or exposed to sunlight against UV light • Antimicrobials to protect hygienic fiber products from bacteria proliferation • Antistatics to reduce electrostatic charges • Antioxidants to reduce polymer oxidation during spinning and protect fabrics during service life • Optical brighteners to provide a brilliant white effect and blueish hue • Electrets to retain electrostatic charge on the polymer surface for a longer period of time in filtration applications • Hydrophobics to impart durable water repellency • Chain extenders for recycled polyester fibers • Others on request Product characteristics • Good spinnability • Fiber-specific QC and protocols • Lot-to-lot consistency • Carriers: PET, PBT, PA 6, PP, and others • Possibility to combine colors and additives into a combination concentrate for convenience • Product guidance from our fiber expert team • Focus on safe and sustainable formulations • Continuous filaments (POY, FDY, HOY, BCF) • Long and short spinning staple fiber • Nonwoven processes (spunbond and meltblown) Cesa™ Fiber Additives MagIQ™ Liquid Fiber Colorants & Additives Multiple color production • Depending on the manufacturing set-up, several injection points can be added to enable multiple color production at the same time on a single extruder Batch size flexibility • Fiber producers can manufacture anything from a few kilograms to hundreds of tons using the same simple process Rapid color changes • No extruder contamination and easy color-on, color-off operation increases color change speed Waste reduction • Rapid color changes, precise metering and the ability to adjust color in-line reduces waste during color changeovers Continuous metering & long spin pack life • High pigment and dye concentrations mean fewer pack changes are required • Where color is running low for larger volume runs, low level metering sensors alert operators and packs can be changed without disrupting production In-line IV adjustment • Specialist additives are available to adjust Intrinsic Viscosity (IV) in-line for rPET applications • These additives are available as single products, or can be combined with color to create a multi- functional formulation Color design service • Avient offers a dedicated color design service to help shorten product development cycles and enhance market agility Liquid color processing • Formulations are stable at temperatures up to 60°C and retain good flow properties at temperatures as low as 10°C • These formulations can help lower yarn friction and abrasion, and there is no fuming or evaporation during production Avient’s liquid fiber colorant technology combines advanced liquid color formulations with state-of-the-art, high-pressure metering equipment to enable late-stage injection of liquid color for spun-dyed polymer melt.

COLLA B T INNOVATION E X C LE CE CORE VALUES INTEG IT Y HONESTY R P C T PERSONAL VALUES 74424.indd intro_5 3/16/20 12:25 PM 1 Annual Report | 2019 Sustainability In Action: People, Products, Planet, Performance Dear PolyOne Shareholders, 2019 was a pivotal, transformational and telling year for our great company. PATTERSON Chairman, President and Chief Executive Off icer BRADLEY C. PEDERSON Senior Vice President, President of Specialty Engineered Materials JOEL RATHBUN Senior Vice President, Mergers & Acquisitions JOÃO JOSÉ SAN MARTIN NETO Senior Vice President, Chief Human Resources Off icer KURT C.

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DESCRIPTION CHARACTERISTICS PROCESSES CC10120195WE Multi-purpose purge concentrate that is miscible with all resin systems Performance up to 280°C Extrusion, molding, injection and film processes 1.844.4AVIENT www.avient.com Copyright © 2023, Avient Corporation.

120,000 BOARD MEMBER, MANAGING DIRECTOR 660613-3954 Nilsson, Bo Patrik Joakim, Hovslagaregatan 13, 271 57 YSTAD BOARD MEMBER, CHAIR OF THE BOARD 640503 Merklein, Norbert, Fichtenstrasse 20, 61476 KRONBERG IM TAUNUS, TYSKLAND BOARD MEMBERS 750618-4089 Norén, Jenny Eva Kristina, Fårabäcksvägen 68, 212 91 MALMÖ 610322 Smeds, Jan-Håkan, Chämiweg 23, NEFTENBACH, TYSKLAND AUDITORS 556029-6740 Öhrlings PricewaterhouseCoopers AB, Box 4009, 203 11 MALMÖ Represented by: 710921-4689 PRINCIPALLY RESPONSIBLE AUDITOR 710921-4689 Olsson, Karin Maria, c/o PwC, 405 32 GÖTEBORG SIGNATORY POWER e-Certificate of registration Swedish Companies Registration Office LIMITED COMPANY D1a- 6064988 Registration number Date of registration of the company Document created on Date of registration of current name Page 556393-1020 1990-04-10 2020-11-30 14:53 2020-11-30 2 (2) The board of directors is entitled to sign.