Examples include: •    Barrier technologies that preserve the shelf-life and quality of food, beverages, medicine and other perishable goods through high-performance materials that require less plastic •    Light-weighting solutions that replace heavier traditional materials like metal, glass and wood, which can improve fuel efficiency in all modes of transportation •    Breakthrough technologies that minimize wastewater and improve the recyclability of materials and packaging across a spectrum of end uses

The new formulations are Avient’s first PCR-containing TPE technology developed primarily for overmolding polycarbonate (PC), acrylic butadiene styrene (ABS), and PC/ABS blends in applications from consumer electronics, cosmetics packaging, and personal care items to power tools and toys. Avient is also working to extend the portfolio with customized grades to meet specific application needs like color, hardness, and required recycled content percentage.  Unique technologies that improve the recyclability of products and enable recycled content to be incorporated, thus advancing a more circular economy

Cesa™ Light Diffusion Additives for the Transportation Industry Lighting is a central aspect in the interior design of a vehicle, for reasons both aesthetic and functional. We offer solutions for the transparent and translucent thermoplastics used in the automotive industry (typically PMMA and PC). Most applications require that the light source be somewhat or well hidden.

EXTERNAL FIXATOR DEVICE S T A B I L I Z I N G R O D S • Durable material that withstands everyday use • Light weight for easy customer handling • Precise stiffness to support load requirements and extend product lifetime • Maintained stiffness and straightness necessary for halo applications • Provided superior strength-to-weight ratio vs. metal • Appealed to aesthetics while maintaining high performance needs • Maximized user comfort via customized Avient Design services Glasforms™ Carbon Fiber Rods KEY REQUIREMENTS WHY AVIENT? https://www.avient.com/products/advanced-composites/pultrusion-and-continuous-filament-winding-technology/glasforms-pultruded-rods-tubes-custom-profiles

PRODUCT BULLETIN ColorMatrix™ Liquid Dispersion for Extrusion Blow Molding Avient’s ColorMatrix™ LCX liquid color products are the latest advancement in technology to deliver stable pigment dispersions for the extrusion blow molding (EBM) process. ColorMatrix LCX dispersions are designed to minimize and eliminate screw slip, streaking and specking, all while generating cost-to-color savings through processing efficiencies that include: • Handling efficiency – bulk distribution, individual feed stations • Inventory reduction – less inventory and required floor space • Process efficiency – improved color change times KEY CHARACTERISTICS • Highly concentrated pigment dispersions specifically for EBM processing • Provides dimensional stability by utilizing more resin instead of fillers • Reduces costs through handling and processing efficiencies • Customization available for design and product handling • Can be formulated in combination with a wide selection of additive technologies to meet performance needs MARKETS AND APPLICATIONS ColorMatrix LCX Liquid Dispersions for EBM processing are well suited for the following: • Monolayer applications • LDR less than 3% • Large volume whites and blacks • Tints 1.844.4AVIENT www.avient.com Copyright © 2021, Avient Corporation.

Heat sinks are often complex and may even require fans for forced convection. Recent advances in polymer technology make it possible to formulate thermally conductive plastics that manage heat just as effectively overall as their metal counterparts. First find a component’s heat dissipation requirements by conducting a heat analysis.

Additionally, Adjusted EPS excludes the impact of special items and amortization expense associated with intangible assets. 2 3 AVIENT OVERVIEW OUR VISION: Creating specialized and sustainable materials solutions that transform customer challenges into opportunities, bringing new products to life for a better world 2023 Financial ResultsCompany Overview Revenue By: 9,300 Employees 102 Manufacturing Sites 20,000+ Customers Key Highlights  Premier formulator of specialized and sustainable materials solutions  Asset-light business model, with flexibility to adapt to customer needs  Best-in-class technology and service (140+ PhDs / 2,500+ patents)  History of transformation through successful M&A while consistently returning cash to shareholders  Poised for continued future growth in excess of GDP $3.14B Revenue $2.36 Adjusted EPS $502M Adjusted EBITDA 16.0% Adjusted EBITDA Margins $186M Adjusted Free Cash Flow Over $1B in share buybacks since 2011 Raised dividend for 13 consecutive years, a 15% CAGR since 2011 U.S. & Canada EMEA Asia Latin America 64% 36% Specialty Engineered Materials Color Additives and Inks 41% 36% 18% 5% 7% 7% 23% 19% 9% 16% 10% 5% 4% Defense Healthcare Packaging Consumer Building & Construction Industrial Transportation Energy Telecom Geography Segment Industry 4 CRE AT ING A WORL D-CL AS S S US TAINABL E ORGANIZ AT ION 1. 6% annualized long term sales growth leveraging sustainable solutions, composites, healthcare and emerging regions 2. 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 -T IE R S US TAINABIL IT Y P E RF ORM ANCE AND RE COGNIT ION Industry Sustainability Standards ESG Ratings Performance 1 2 4 87th 94th percentile 5 Avient CDP Score: A- F E B R U A R Y 1 4 , 2 0 2 4 W E B C A S T P R E S E N T AT I O N DR. PY ( T O TA L C O M PA N Y ) $790 $719 2022 2023 $107 $114 2022 2023 Sales Adjusted EBITDA (in millions) $0.42 $0.52 2022 2023 Adjusted EPS (in millions) - 9% + 7% + 24% Sales Adjusted EBITDA Adjusted EPS 15 Q4 2023 SEGMENT PERFORMANCE 16 CAI $491 $459 Sales (in millions) $70 $84 EBITDA SEM $301 $260 Sales $55 $49 EBITDA - 7% - 14%+20% - 11% 2022 2023 (in millions) Q4 EBITDA BRIDGE ( T O TA L C O M PA N Y ) 17 $ millions CAI: Price / Mix 11 Deflation 14 SEM: Price / Mix 4 Deflation 9 Net Price Benefit 38 Cost Reductions 13 Wage Inflation (8) Other (2) Q4 2023 $114 Adjusted EBITDA Q4 2022 $ 107 Demand (34) • Demand was down, but less than in previous quarters, due to slowing pace of destocking • Positive net price benefit: o CAI – Pricing flat with favorable mix from uptick in packaging and consumer end markets and raw material deflation o SEM - Pricing flat with favorable mix from Composites and raw material deflation • Cost reductions primarily driven by reduced administrative costs and cost synergies 2 0 2 4 G U I D A N C E 2024 GUIDANCE Full Year 2024 Guidance Adjusted EBITDA $505 to $535 million Adjusted EPS $2.40 to $2.65 Interest Expense $105 to $110 million Adjusted Effective Tax Rate 23% to 25% Capital Expenditures ~$140 million 19 Q1 Adjusted EPS of $0.68 A P P E N D I X 21 Performance Additives 15% Pigments 13% TiO2 9% Dyestuffs 2% Polyethylene 10%Nylon 5% Polypropylene 4% Styrenic Block Copolymer 4% Other Raw Materials 38% ~40% hydrocarbon based (Grey shaded materials are hydrocarbon based, includes portion of “Other Raw Materials”) Non-hydrocarbon based materials RA W MATERIAL BASKET SEGMENT DATA U.S. & Canada 41% EMEA 36% Asia 18% Latin America 5% 2023 SEGMENT, END MARKET AND GEOGRAPHY GEOGRAPHY REVENUESEGMENT FINANCIALS Consumer 19% Packaging 23%Industrial 16% Building and Construction 9% Telecommunications 4% Energy 5% Defense 7% END MARKET REVENUE $2,007M $358M $1,138M $224M Sales EBITDA Specialty Engineered Materials Color Additives and Inks $502M$3,143M (1) Transportation 10% Healthcare 7% 23 (1) Total company sales and adjusted EBITDA of $3,143M and $502M, respectively, include intercompany sales eliminations and corporate costs 2 0 2 3 R E V E N U E | $ 2 . 0 B I L L I O N US & Canada 34% EMEA 37% Asia 21% Latin America 8% END MARKET REGION 24 Packaging 34% Consumer 21% Healthcare 8% Industrial 15% Transportation 9% Building & Construction 10% Telecommunications 1% Energy 2% COLOR, ADDITIVES & INKS 2 0 2 3 R E V E N U E | $ 1 . 1 B I L L I O N US & Canada 52% EMEA 35% Asia 13% 25 Packaging 5% Consumer 16% Healthcare 6%Industrial 16% Transportation 12% Telecommunications 9% Energy 10% Defense 18% Building & Construction 8% END MARKET REGION SPECIALTY ENGINEERED MATERIALS Packaging 32% Consumer 26% Healthcare 9% Industrial 13% Building & Construction 6% Telecommunications 2% Energy 2% Defense 1% Asia (18% of sales) Transportation 9% 2 0 2 3 AV I E N T R E G I O N A L S A L E S Packaging 25% Consumer 13% Healthcare 5% Industrial 18% Building & Construction 9% Energy 5% Defense 8% EMEA (36% of sales)Transportation 13% Packaging 13% Consumer 22% Healthcare 10% Industrial 16% Building & Construction 12% Energy 6% Defense 8% US & Canada (41% of sales) Transportation 9% Packaging 59% Consumer 22% Healthcare 2% Industrial 8% Building & Construction 4% LATAM (5% of sales) Transportation 5% Telecommunications 4% Telecommunications 4% 26 B Y E N D M A R K E T 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.

Certificate Number:Certificate Number: Certificate expiration date:Certificate expiration date: Effective date:Effective date: 31-10-202231-10-2022 30-10-202530-10-2025 Expiry date of previous cycle:Expiry date of previous cycle: 30-10-202230-10-2022 31-10-201631-10-2016 ES133794ES133794 Scope of certification:Scope of certification: MANUFACTURING OF MASTERBATCHES, ADDITIVESMANUFACTURING OF MASTERBATCHES, ADDITIVES AND COMPOUNDS FOR PIGMENTING THERMOPLASTICAND COMPOUNDS FOR PIGMENTING THERMOPLASTIC MATERIALS USED IN FOOD INDUSTRYMATERIALS USED IN FOOD INDUSTRY ISO 22000:2018ISO 22000:2018 POLIGONO INDUSTRIAL EZCABARTE, C/H, Nº3 - 31194 - ORICAIN - NAVARRA - ESPAÑA AVIENT ESPAÑA, S.L.AVIENT ESPAÑA, S.L. C/ Valportillo Primera 22-24, Edificio Caoba, 28108 Alcobendas - Madrid, España This certificate is valid, subject to the general and specific terms and conditions of certification servicesThis certificate is valid, subject to the general and specific terms and conditions of certification services STANDARDSTANDARD Bureau Veritas certification certifies that the Management System Bureau Veritas certification certifies that the Management System has been audited andhas been audited and found to be in accordance with found to be in accordance with the requirements of standard:the requirements of standard: Awarded toAwarded to CertificationCertification https://e-cer.bureauveritas.com/WJLVJDYG9LKV98RP6JCHF8NPSKES0NHDXDPLOWOT1TB290DE4LNZC0JCBAI2BVWEAZ1GJWC8BMDC2TXFBGVDXP3YXG0JLAVMFN3HLEWBLUWJGXCY5PAJ8QKKSTVJYSZ9M9 https://e-cer.bureauveritas.com/WJLVJDYG9LKV98RP6JCHF8NPSKES0NHDXDPLOWOT1TB290DE4LNZC0JCBAI2BVWEAZ1GJWC8BMDC2TXFBGVDXP3YXG0JLAVMFN3HLEWBLUWJGXCY5PAJ8QKKSTVJYSZ9M9 https://e-cer.bureauveritas.com/WJLVJDYG9LKV98RP6JCHF8NPSKES0NHDXDPLOWOT1TB290DE4LNZC0JCBAI2BVWEAZ1GJWC8BMDC2TXFBGVDXP3YXG0JLAVMFN3HLEWBLUWJGXCY5PAJ8QKKSTVJYSZ9M9 https://e-cer.bureauveritas.com/WJLVJDYG9LKV98RP6JCHF8NPSKES0NHDXDPLOWOT1TB290DE4LNZC0JCBAI2BVWEAZ1GJWC8BMDC2TXFBGVDXP3YXG0JLAVMFN3HLEWBLUWJGXCY5PAJ8QKKSTVJYSZ9M9 https://e-cer.bureauveritas.com/WJLVJDYG9LKV98RP6JCHF8NPSKES0NHDXDPLOWOT1TB290DE4LNZC0JCBAI2BVWEAZ1GJWC8BMDC2TXFBGVDXP3YXG0JLAVMFN3HLEWBLUWJGXCY5PAJ8QKKSTVJYSZ9M9 https://e-cer.bureauveritas.com/WJLVJDYG9LKV98RP6JCHF8NPSKES0NHDXDPLOWOT1TB290DE4LNZC0JCBAI2BVWEAZ1GJWC8BMDC2TXFBGVDXP3YXG0JLAVMFN3HLEWBLUWJGXCY5PAJ8QKKSTVJYSZ9M9 https://e-cer.bureauveritas.com/WJLVJDYG9LKV98RP6JCHF8NPSKES0NHDXDPLOWOT1TB290DE4LNZC0JCBAI2BVWEAZ1GJWC8BMDC2TXFBGVDXP3YXG0JLAVMFN3HLEWBLUWJGXCY5PAJ8QKKSTVJYSZ9M9 2022-12-15T10:52:43+0100 Authenticity and Integrity 2022-12-15T10:53:51+0100 BUREAU VERITAS CERTIFICATION

UL’s independent testing and f1 certification indicates that materials are suitable for outdoor use with respect to ultraviolet light, water exposure and immersion in accordance with UL 746C requirements. The company is dedicated to serving customers in diverse industries around the globe, by creating value through collaboration, innovation and an unwavering commitment to excellence.

We worked closely with this customer to understand the application’s needs and were able to formulate a solution that meets today’s increasingly rigorous food-contact safety requirements,” said Charles Page, director of global marketing, PolyOne GLS Thermoplastic Elastomers. The company is dedicated to serving customers in diverse industries around the globe, by creating value through collaboration, innovation and an unwavering commitment to excellence.