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 Applications • 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. LIQUID FIBER PRODUCT FEATURES Fiber Solution Services LABORATORY PERFORMANCE BASED ON STATE-OF-THE-ART TECHNOLOGY To ensure the highest quality products, our customers rely on high-performance raw materials which guarantee that the final products meet the required specifications for heat resistance, household washing, weathering and lightfastness.

PRODUCT BULLETIN Cesa™ Fiber Tracer Concentrates The textile supply chain is usually long and complex, with several material and service suppliers playing a role. KEY BENEFITS • Unique and personalized tracer for customer/ product lines • Suitable for polyester and polyamide (nylon), including recycled grades; possibility to develop solutions for bio-polymers • No impact on spinnability, color or yarn properties • Can be combined with color into a single product for convenience • Complies with key regulatory requirements by EN, DIN, UNI and others • Supplied with a testing service package Copyright © 2022, Avient Corporation.

Politica globale Avient anti-concussione e anti-corruzione Politica globale Avient anti-concussione e anti-corruzione Indice La nostra Politica globale su anti-corruzione e anti-concussione 1 Importanza della conformità 1 La nostra responsabilità 1 Cos’è una tangente? 2 Corruzione di funzionari pubblici 2 Corruzione commerciale 2 Pagamenti agevolanti e tangenti 3 Lavorare con agenti, distributori e altre terze parti 3 Due diligence e processo di approvazione 3 Segnali di allerta 3 Requisiti di contabilità e tenuta dei registri 4 Segnalazione di possibili violazioni 4 Linea di assistenza telefonica sull’etica Avient 4 Protezione dalle ritorsioni 4 Riferimento rapido: COSA SI PUÒ FARE E COSA NO, AI SENSI DELLE LEGGI ABAC 5 1 La nostra Politica globale su anti- corruzione e anti-concussione Avient proibisce severamente la frode, la corruzione e le altre pratiche commerciali corrotte in tutte le nostre unità operative ovunque nel mondo. Tale divieto si applica sia se l’offerta o il pagamento sono effettuati direttamente sia tramite un’altra persona • Inserire voci fuorvianti, incomplete o false nei libri e nei registri di Avient • Ignorare i segnali di allerta quando si tratta con terze parti Indice Nord America Sede globale Avon Lake, Stati Uniti 33587 Walker Road Avon Lake, Ohio, Stati Uniti 44012 Numero verde: +1 866 765 9663 Telefono: +1 440 930 1000 Fax: +1 440 930 3064 Asia Pacifico Sede regionale Shanghai, Cina 2F, Block C 200 Jinsu Road Pudong, 201206 Shanghai, Cina Telefono: +86 (0) 21 6028 4888 Fax: +86 (0) 21 6028 4999 America del Sud Sede regionale San Paolo, Brasile Av.

L’avis porte sur la détectabilité et la triabilité de la solution colorante et non sur la recyclabilité de l’emballage au global. Bien que le COTREP émette un avis positif sur la détectabilité et la triabilité de la solution colorante noire CESA® IR PE 94000828 de Avient Corporation, cet avis ne présage en rien de la recyclabilité de l’emballage au global.

L’avis porte sur la détectabilité et la triabilité de la solution colorante et non sur la recyclabilité de l’emballage au global. Bien que le COTREP émette un avis positif sur la détectabilité et la triabilité de la solution colorante noire CESA® IR PP 94000721 de Avient Corporation, cet avis ne présage en rien de la recyclabilité de l’emballage au global.

ISO 9001:2015 No. de certificado: 65799 ISO 9001:2015 No. de certificado: 49862 ISO 9001:2015 No. de certificado: 31307 ISO 14001:2015 No. de certificado: 65537 RC 14001®:2015 No. de certificado: 65536 ISO 22000:2018 No de regulacion: 46389 IATF 16949:2016 No. de certificado: 63431 Toluca, Mexico ✓ ✓ ✓ ✓ Santa Clara, Mexico ✓ ✓ ✓ ✓ Guatemala City Guatemala ✓ ✓ ✓ Cota, Columbia ✓ ✓ ✓ Suzano, Brazil ✓ ✓ ✓ Itupeva, Brazil ✓ Buenos Aires, Argentina ✓ ✓ ✓ Santiago, Chile ✓ ✓ ✓ Puede encontrar certificados e información adicional en la biblioteca de certificados ISO globales de Avient ISO 9001:2015 ISO 14001:2015 es la norma internacional para la mejora ambiental continua y el cumplimiento normativo de los Sistemas de Gestión Ambiental (SGA). La norma ISO 22000 es aplicable a todo tipo de fabricantes relacionados con la alimentación para ayudar a controlar los peligros para la seguridad alimentaria dentro de la cadena de suministro de alimentos global.

L’avis porte sur la détectabilité et la triabilité de la solution colorante et non sur la recyclabilité de l’emballage au global. Bien que le COTREP émette un avis positif sur la détectabilité et la triabilité de la solution colorante noire CESA® IR PE 94000817 de Avient Corporation, cet avis ne présage en rien de la recyclabilité de l’emballage au global.

WEIGHT REDUCTION • Up to 75% lighter than steel; up to 25% lighter than aluminum • Better fuel economy for transportation • Simplified installation DESIGN FLEXIBILITY • Complex shapes less costly to produce than metal • Ability to tailor strength and stiffness in specific areas • Versatile aesthetic options for surface finish PART CONSOLIDATION • Easier installation and assembly with fewer parts • Simplified transport of finished goods • Fewer parts = reduced chance of failure Value that the U.S. composite materials market is expected to reach by 2022 $10.6B 50% Amount of weight reduction that advanced composites could bring to passenger cars, leading to 35% better fuel efficiency 7% CAGR that analyst firm Technavio forecasts the global medical composite materials market will experience from 2016–2020 Fiber-reinforced polymer composites combine thermoset or thermoplastic resins with fiber reinforcement, the resulting product having substantially different properties than the individual components.

Factors that could cause actual results to differ materially from those implied by these forward-looking statements include, but are not limited to: • Disruptions, uncertainty or volatility in the credit markets that could adversely impact the availability of credit already arranged and the availability and cost of credit in the future; • The effect on foreign operations of currency fluctuations, tariffs and other political, economic and regulatory risks; • Changes in laws and regulations regarding plastics in jurisdictions where we conduct business; • Fluctuations in raw material prices, quality and supply, and in energy prices and supply; • Production outages or material costs associated with scheduled or unscheduled maintenance programs; • Unanticipated developments that could occur with respect to contingencies such as litigation and environmental matters; • Our ability to achieve strategic objectives and successfully integrate acquisitions, including Avient Protective Materials (APM); • An inability to raise or sustain prices for products or services; • Our ability to pay regular quarterly cash dividends and the amounts and timing of any future dividends; • Information systems failures and cyberattacks; • Amounts for cash and non-cash charges related to restructuring plans that may differ from original estimates, including because of timing changes associated with the underlying actions; and • Other factors affecting our business beyond our control, including without limitation, changes in the general economy, changes in interest rates, changes in the rate of inflation and any recessionary conditions Use of Non-GAAP Measures This presentation includes the use of both GAAP (generally accepted accounting principles) and non-GAAP financial measures. Global Compact • Highlights ESG Performance, including ratings, awards, and certifications • Features increased carbon emissions disclosures, including Climate Change Scenario Analysis and Scope 3 emissions data • Outlines Sustainable Supplier Program, designed to enable supplier evaluation & collaboration • Reflects Great Place To Work® culture focused on safety, employee engagement and advancing diversity, equity and inclusion 2022 SUSTAINABILITY REPORT 15 Avient Confidential 16 • Virtual presentation to be held September 20, 2023 • Leadership will be conducting an investor-focused presentation around our sustainable solutions portfolio • Deep dive into how we enable customers to achieve their sustainability goals SUSTAINABILITY DAY 16 …are Growing at Twice the Rate as Conventional Products Sustainably-Branded Products… STAKEHOLDER INFLUENCE DRIVES DEMAND Consumers Are demanding recyclability and eco- conscious products Governments Are mandating changes through legislation, taxes, and regional accords Brand Owners Have committed to ambitious goals to achieve sustainability metrics 17 AP P EN D IX 20 Performance Additives 16% Pigments 12% TiO2 10% Dyestuffs 2% Polyethylene 11% Nylon 6% Polypropylene 5% Styrenic Block Copolymer 5% 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 PEER COMPARISONS AVIENT IS ASSET LIGHT Capex / Revenue 2023E (%) Avient Specialty Formulators Other Specialty / Chemical Companies Source: Peer data per Bloomberg as of July 21, 2023 Note: Avient reflects 2023 estimated revenue of $3,280 and estimated run-rate CAPEX of $110M. 22 3 2 3 3 4 4 3 3 4 5 5 7 8 8 A vi en t K W R P P G F U L R P M A V Y F M C H U N C E H X L E C L A S H E M N S C L FREE CASH FLOW CONVERSION Source: Peer data per Bloomberg as of July 21, 2023 Note: Free cash flow conversion calculated as (Adjusted EBITDA – Capex) / Adjusted EBITDA.

Leadership, EHS&S-PS, Facility Services, Design & Development, Information Technology, Sourcing, Logistics, Legal, and Human Resources Certificate No: 65537 Certification Date: 29 SEP 2023 Effective Date: 27 FEB 2025 Expiration Date: 27 SEP 2026 Revision Date: 05 MAR 2025 Dominic Townsend, President Copyright as of the Effective Date, ABS Quality Evaluations, Inc. Leadership, EHS&S-PS, Facility Services, Design & Development, Information Technology, Sourcing, Logistics, Legal, and Human Resources 33587 Walker Road Avon Lake OH 44012 United States Avient Corporation HQ Responsible Care Corporate Support Activities in Sr. Water Street North Baltimore OH 45872 United States Avient Corporation NEU Specialty Engineered Materials, LLC Compound, Supply, and Prototyping Services of Thermoplastics 15 Corporate Drive North Haven CT 06473 United States Avient Corporation Design and Manufacture of Colorants and Additives for Plastics 80 North West Street Norwalk OH 44857 United States ISO 14001:2015 Certificate Of Conformance ANNEX Certificate No: 65537 Avient Corporation At the below facilities FACILITY NAME FACILITY ACTIVITY ADDRESS Copyright as of the Effective Date, ABS Quality Evaluations, Inc.