PRIOR YEAR $790 $710 2022 2023 $107 $112 2022 2023 Sales Adjusted EBITDA $0.42 $0.47 2022 PF 2023 - 10% + 5% + 12% Sales Adjusted EBITDA Adjusted EPS 16 $112 $500 $0.47 Q4 AND FULL YEAR 2023 GUIDANCE $710 $3,130 Sales Adjusted EBITDA Adjusted EPS 17 (in millions) (in millions) Guidance: Free Cash Flow $180 $180 Prior Guidance Guidance FREE CASH FLOW & INCREASED DIVIDEND 13th Consecutive Dividend Increase 0.16 0.26 0.42 0.58 0.79 0.85 0.99 1.03 2011 2013 2015 2017 2019 2021 2023 2024 S U S TAI NABI L I T Y DAY RE CAP SUSTAINABILITY AS A GROWTH DRIVERLONG-TERM REVENUE GROWTH DRIVERS 60%+ Key Growth Drivers Sustainable Solutions Composites, Healthcare, Asia / LATAM Overlap Other (GDP Growth) Total Company Revenue Growth Drivers Long-Term Growth Rate Sustainable Solutions 8–12% Composites 8–10% Healthcare 8–10% Asia / LATAM 5% Other (GDP growth) 0–2% Avient 6% SUSTAINABILITY TRENDS DRIVE LONG-TERM GROWTH 8-12% Long Term Growth 50 90 2022 2030 Medical Plastics Market Size (in $Billions) 2020 2030 Recycled Plastics Virgin Plastics Growing Demand for Recycled Content Avient Sustainable Solutions 46 2023 2032 Global Offshore Annual Wind Installations (in Gigawatts) Sources: McKinsey, Bloomberg, Grand View Research SUSTAINABILITY TRENDS DRIVE LONG-TERM GROWTH 21 • Transformative acquisitions combined with divestitures of more cyclical businesses have improved margins over 400 bps since 2018 • 20% long-term margin goal to be driven by key growth drivers, with sustainable solutions playing a meaningful role 5.4% 11.5% 2006 2018 2023E Recovery Growth Drivers Strategic Objective 20%+ +1%+ +3%+ ADJUSTED EBITDA MARGIN EXPANSION 22 • 6% annualized long-term sales growth leveraging sustainable solutions, composites, healthcare, and emerging regions • Expand EBITDA margins to 20% • Deliver annual EBITDA and EPS growth of 10% and 15% • Maintain asset-light, 80% free cash flow conversion profile and be valued as a specialty formulator • Continue fostering our Great Place to Work® culture CREATING A WORLD-CLASS SUSTAINABLE ORGANIZATION 23 PEER COMPARISONS AVIENT IS ASSET LIGHT Capex / Revenue 2023E (%) Avient Specialty Other Specialty / Note: Avient reflects 2023 estimated revenue of $3,130 and estimated run-rate CAPEX of $110M. 26 3.5 1.8 2.7 3.1 3.3 3.7 3.0 3.7 4.7 4.8 6.8 6.8 8.7 11.1 Av ie nt AV PM FM N C FREE CASH FLOW CONVERSION Note: Free cash flow conversion calculated as (Adjusted EBITDA – Capex) / Adjusted EBITDA. Avient 2011, 2018 and 2021 multiples reflect trailing 12 months EBITDA at December 31. 28 EV / 2023E EBITDA 6.5 8.5 11.0 10.8 16.1 15.5 14.1 14.0 10.3 21.0 19.0 14.3 12.1 11.8 11.7 11.5 9.7 11 21 23 PM AV FM Avient Historic Multiple Avient Specialty Other Specialty / AP P E N DI X 30 Performance Additives 16% 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 2022 pro forma results for the acquisition of Avient Protective Materials RAW MATERIAL BASKET SEGMENT DATA U.S. & Canada 40% 37% 18% 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% 32 (1) Total company sales and adjusted EBITDA of $3,653M and $592M, respectively, include intercompany sales eliminations and corporate costs 2022 REVENUE | $2 .4 BILLION US & Canada 34% 38% END MARKET REGION 33 34% 21% Building & 1% Energy 2% COLOR, ADDITIVES & INKS 2022 PRO FORMA REVENUE | $1 .3 BILLION US & Canada 52% 35% 34 19% 8%Industrial 16% 9% Defense Building & END MARKET REGION SPECIALTY ENGINEERED MATERIALS 32% 27% 14% Building & 3% 1% Defense 1% (18% of sales) 9% 2022 PROFORMA AVIENT REGIONAL SALES 27% 14% 17% Building & (37% of sales)Transportation 12% Building & US & Canada (40% of sales) 7% 56% 23% 7% Building & 1% LATAM (5% of sales) 3% 35 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.

BOS B A T T E R Y S F R A M E • Recycled materials where possible • Non-halogen flame retardant performance to V0 rating • BOS company color RAL9004 (on visible parts) • Thermal performance for some parts • High strength at low thickness for load-bearing parts • Provided multiple polymer solutions for the battery frame including recycled nylon, thermoplastic elastomers and thermally conductive formulations • Utilized recycled nylon with up to 35% glass fiber content to provide high strength for load-bearing parts at a low thickness to minimize weight • Enabled customer to launch a new innovative battery system with a modular design for use in multiple applications – maximizing the working life of the battery Nymax™ REC Recycled Nylon Formulations and Therma-Tech™ Thermally Conductive Formulations KEY REQUIREMENTS WHY AVIENT? AVIENT SOLUTION LIGHTWEIGHT + RECYCLED MATERIALS LEARN MORE Copyright © 2023, Avient Corporation. https://www.avient.com/products/engineered-polymer-formulations/sustainable-formulations/nymax-rec-recycled-nylon-formulations Bos

These include PE, PP, ABS, SAN, PC/ABS, PC, PA6, 66 and 12, cyclic olefins (COP), high performance polymers, and elastomers such as EVA, SEBS, TPU and PEBA. APPLICATION PORTFOLIO DESCRIPTION General use Opaque and transparent colors in PP, PE, COC, ABS, POM, PC, TPU, PEEK, and more Needle hubs and cannulae Opaque and translucent colors evaluated to ISO 6009 Ophthalmic caps and closures 13 standard colors in PE matched to American Academy of Ophthalmology; biologically evaluated to USP standard White pharmaceutical packaging White colorants for PE, HDPE, PP covering solid dose to nasal packaging needs Amber pharmaceutical packaging Pre-tested amber colorants LSR silicones For LSR silicones and transparent color PET/PP (e.g. amber) FUNCTIONALITY ADDITIVE PERFORMANCE UV protection in transparent packaging Blocks UV in 290–450nm for PP, PE, PETG, COP Processing aid/friction reduction Optimizes processing for PE, PP, ABS, POM—non-migrating Nucleation for reduced material consumption/cycle time Improves thermal and mechanical properties of PE and PP and allows wall thinning to support sustainability Clarifying Improves clarity of transparent PP applications with reduced migration and improved thermal stability—sorbitol-free Laser marking/welding Activates the polymer to absorb Nd-YAG laser for fast reliable marking/assembly Gamma/e-beam sterilization Preserves the properties of PP and COP, reduces yellowing and compensates for discoloration Anti-static Reduces static buildup in applications such as films in API handling and inhaler spacers/nebulizers Antioxidant Provides thermal protection during converting/ downstream sterilization Anti-counterfeit/brand protection Covert and non-covert systems SUPPORTING SUSTAINABILITY TARGETS As the need to integrate sustainability in the design of healthcare products is growing, manufacturers of medical devices, diagnostic products and pharmaceutical packaging are looking for materials with a more environmentally friendly profile. The cycle time in injection molding can be reduced (10–15% in PP) to support higher output and less energy consumption.

We have come to rely on this common plastic because it is convenient, lightweight, safe, cost effective and highly recyclable. Color consistency; recycle stream impact ColorMatrix™ SmartHeat RHC Tint or SmartHeat RHC Tone Recycle-friendly color or toner containing SmartHeat RHC, which helps to reduce carbon emissions and improve the quality and performance of rPET, allowing for higher levels of rPET to be used. Provides all benefits of SmartHeat RHC while also producing a toning or color effect with no detrimental impact on the recycle stream.

Available in four overmolding grades compatible with polypropylene (PP), and one grade that is suited for overmolding onto ABS, all grades are formulated for durability, delivering property retention and UV resistance comparable to traditional TPEs. Peel (N/mm) 3.2 2.9 3.2 3.2 3.1 3.2 3.1 Failure Mode Cohesive Cohesive Cohesive Cohesive Cohesive Cohesive Cohesive KEY PROPERTIES AND OVERMOLD PERFORMANCE reSound™ OM 5510 grades for overmolding onto PP and reSound OM 5520 for ABS reSound OM 5510-30N reSound OM 5510-45N reSound OM 5510-60N reSound OM 5510-70N reSound OM 5520-55N Bio-derived Content (%) 40% 40% 50% 50% 49% Hardness, Shore A 30 45 60 70 54 Specific Gravity 0.88 0.88 0.89 0.89 0.95 50% Modulus, PSI 96 153 247 384 258 100% Modulus, PSI 137 251 343 462 353 Tensile Strength, PSI 264 438 625 608 637 Elongation, % 280 215 306 271 319 Tear Strength, PLI 58 84 109 132 146 OM Substrate PP PP PP PP ABS OM Avg. Peel, PLI 12 19 23 20 19 reSound OM 5510 for PP reSound OM 5510-60N Room Temperature 70C Bio-derived Content (%) 50% 50% 50% 50% 50% 50% 50% Hardness, Shore A 60 60 60 60 60 60 60 Specific Gravity 0.89 0.89 0.89 0.89 0.89 0.89 0.90 50% Modulus, PSI 247 241 244 251 234 244 240 100% Modulus, PSI 343 333 338 339 321 331 326 Tensile Strength, PSI 625 621 647 610 633 662 642 Elongation, % 306 314 309 313 312 315 315 Tear Strength, PLI 109 108 113 113 111 117 115 reSound OM 5520-55N Room Temperature 70C Bio-derived Content (%) 49% 49% 49% 49% 49% 49% 49% Hardness, Shore A 54 54 55 55 54 55 56 Specific Gravity 0.95 0.95 0.96 0.96 0.95 0.96 0.96 50% Modulus, PSI 258 256 256 265 266 271 257 100% Modulus, PSI 353 355 357 362 373 379 367 Tensile strength, PSI 637 615 637 669 651 674 642 Elongation, % 319 315 319 333 313 319 315 Tear Strength, PLI 146 136 133 142 137 138 141 reSound OM 5510-45N Room Temperature 70C Bio-derived Content (%) 40% 40% 40% 40% 40% 40% 40% Hardness, Shore A 45 46 47 46 46 45 45 Specific Gravity 0.88 0.89 0.89 0.89 0.89 0.89 0.90 50% Modulus, PSI 153 158 154 162 137 136 133 100% Modulus, PSI 251 259 259 261 226 222 218 Tensile Strength, PSI 438 481 451 495 417 470 486 Elongation, % 215 240 211 243 204 227 238 Tear Strength, PLI 84 81 87 82 83 85 84 AGING – PROPERTY RETENTION • Tested at room temperature and 70° C for comparison • Hardness, tensile strength elongation and modulus showed great retention Overmolding onto PP Overmolding onto ABS RHEOLOGY Suitable for injection molding and overmolding 1.0 10 100 1000 10000 100000 10.0 100.0 1000.0 reSound OM 5510-30N reSound OM 5510-45N reSound OM 5510-60N reSound OM 5510-70N Shear Rate, 1/s Ca pi lla ry V is co si ty , P a* s 1.0 10 100 1000 10000 100000 10.0 100.0 1000.0 reSound OM 5520-55N Shear Rate, 1/s Ca pi lla ry V is co si ty , P a* s Capillary viscosity at 200°C Capillary viscosity at 200°C reSound OM 5510 for PP reSound OM 5520 for ABS www.avient.com Copyright © 2020, Avient Corporation.

ColorMatrix Optica PET Recycle Blue Toners Product Bulletin_CN1.7-1 ColorMatrix™ Optica™ PET 蓝色回收友好调色剂和着色剂 产品公告 ColorMatrix™ Optica™ 专有的液态蓝色调色剂和 着色剂配方可提高热稳定性，主要添加到PET瓶 坯或rPET中，以纠正并减少回收过程中出现的黄 变。

BIC S O L E I L C L I C K 5 W O M E N ’ S R A Z O R H A N D L E • Recycled material • Good colorability • Soft, grippy feel for razor handle • Overmolds on to ABS • Comparable performance to traditional TPE • Collaborated with BIC to develop a custom thermoplastic elastomer grade with 62% recycled content • Enabled BIC to work towards its sustainability commitment to use 50% non-virgin petroleum plastic by 2030 • Increased overall recycled content in the Soleil Click 5 Women’s Razor to 40% Custom reSound™ REC Recycled Content TPE KEY REQUIREMENTS WHY AVIENT? https://www.avient.com/products/thermoplastic-elastomers/resound-r-recycled-content-thermoplastic-elastomers BIC

INJECTION MOLDER T O U C H S C R E E N S U R F A C E • Provide antimicrobial protection with strong log reduction (gram-negative / gram-positive efficacy) using globally available and cost-effective active ingredients • Incorporate a compatible recycled base resin • Utilize recyclate with no haze or discoloration (yellowing) of product, even with long-term heat aging • Maintain visual clarity while using antimicrobial raw materials with additional functional additives • Offered expertise in antimicrobial solutions, application development, and versatile product forms • Provided non-public health claims and reduced material use with recycled polycarbonate • Delivered strong efficacy >Log 2 against gram- negative and gram-positive bacteria • Supported a safe, hygienic environment while maintaining clarity and performance using a masterbatch with recycled content Cesa WithStand SX Low Haze Antimicrobial Additives KEY REQUIREMENTS WHY AVIENT? VISUAL CLARITY + RECYCLATE LEARN MORE AVIENT SOLUTION Copyright © 2024, Avient Corporation.

OnColor™ IR Sortable Black Infrared Sortable Black for Recyclable Packaging OnColor™ Infrared Sortable Black for Recyclable Packaging is a black colorant created without the addition of carbon black pigment. It permits black polymers to be detected by near infrared (NIR) automatic sorting equipment, enabling recycling. Detection and sorting of black products in material recovery facilities is a known issue which affects the packaging and recycling industries.

MEVOPUR COLORANTS • Standard colors in PP and PE to shorten time-to-market • Custom colors matched to Pantone, RAL or other color reference • White colorants for pharmaceutical packaging for LDPE, HDPE and PP with opacity to reach USP chapter MEVOPUR FUNCTIONAL ADDITIVES • Antistatic formulation with good flow/impact for injection molding • Amide- and amine-free antistatic for film in contact with API (Active Pharmaceutical Ingredients) • UV blocking for transparent PP and PE packaging to meet USP chapter • Non-migrating friction reduction/processing aid for PE and PP • Laser marking/welding additive for fast, reliable marking/assembly • MVTR (Moisture Vapor Transmission Rate) reduction for HDPE to improve shelf-life • Thermal protection of the polymer during processing • Gamma/e-beam sterilization protection for PP (up to 50kGy) with color compensation for reduced yellowing REGULATORY SUPPORT • Raw materials tested to: - ISO 10993-1 and USP biological evaluation - European Pharmacopeia 3.1.3/3.1.5 (polyolefin) - USP (polyethylene) - ICH Q3D elemental impurities • Registered Drug Master File (Type III) and/or Device Master File • Food contact established with FDA/EU* APPLICATION BULLETIN * FDA/EU compliance information available upon request Bormed™ is a registered trademark of Borealis Healthcare use limitations apply—see below.